Lexical and morphological knowledge of school-aged children are correlated with each other, and are often difficult to distinguish. One reason for this might be that many tasks currently used to assess morphological knowledge require children to inflect or derive real words in the language, thus recruiting their vocabulary knowledge. The current study investigated the possible separability of lexical and morphological knowledge using two complementary approaches. First, we examined the correlations between vocabulary and four morphological tasks tapping different aspects of morphological (...) processing and awareness, and using either real-word or pseudo-word stimuli. Thus, we tested the hypothesis that different morphological tasks recruit lexical knowledge to various degrees. Second, we compared the Hebrew vocabulary and morphological knowledge of 5th grade language minority speaking children to that of their native speaking peers. This comparison allows us to ask whether reduced exposure to the societal language might differentially influence vocabulary and morphological knowledge. The results demonstrate that indeed different morphological tasks rely on lexical knowledge to varying degrees. In addition, language minority students had significantly lower performance in vocabulary and in morphological tasks that recruited vocabulary knowledge to a greater extent. In contrast, both groups performed similarly in abstract morphological tasks with a lower vocabulary load. These results demonstrate that lexical and morphological knowledge may rely on partially separable learning mechanisms, and highlight the importance of distinguishing between these two linguistic components. (shrink)

The influence of prior familiarity with components on the implicit learning of relations was examined using artificial grammar learning. Prior to training on grammar strings, participants were familiarised with either the novel symbols used to construct the strings or with irrelevant geometric shapes. Participants familiarised with the relevant symbols showed greater accuracy when judging the correctness of new grammar strings. Familiarity with elemental components did not increase conscious awareness of the basis for discriminations but increased accuracy even in (...) its absence. The subjective familiarity of test strings predicted grammaticality judgments. However, prior exposure to relevant symbols did not increase overall test string familiarity or reliance on familiarity when making grammaticality judgments. Familiarity with the symbols increased the learning of relations between them thus resulting in greater familiarity for grammatical versus ungrammatical strings. The results have important implications for models of implicit learning. (shrink)

This paper reports on the results from two studies that were conducted eight years apart with different respondents. The studies examined the role of the Mere Exposure Effect on ethical tolerance or acceptability of particular business decisions. The results from Study 1 show there is a significant difference in ethical judgment for 12 out of 16 vignettes between those who have been exposed to such situations compared to those who have not been exposed to them. In those 12 situations, (...) those who have been exposed to such situations adopted a more tolerant stance toward the ethically questionable behavior. The results from Study 2 show there is a significant difference in ethical judgment for 9 out of 16 vignettes between those who have been exposed to such situations compared to those who have not been exposed to them. Again, in those nine situations, those who have been exposed to such situations adopted a more tolerant stance toward the ethically questionable behavior. Interestingly, the 9 situations in Study 2 were 9 of the 12 situations found to be significant in Study 1, and in the same direction, suggesting that we have found consistency in our findings and support for the Mere Exposure Effect. Implications are provided for both higher education and practitioners. (shrink)

In certain cases, children can react strongly in favor of product placements inserted in movies. Scholars therefore argue that existing disclosures might be one strategy in protecting children from any negative effects. However, disclosure research indicates that viewers should both notice disclosures and, in cases of textual cues, read them. We conducted an experiment with 139 children (Mage = 8.46; SD = 1.12; girls = 53.2 %) and tested the influence of textual disclosure format on disclosure awareness as well as (...) brand-related effects. When comparing with no disclosure, results showed that exposure to an existing textual disclosure positively affects disclosure awareness while exposure to an expanded version of it (i.e., by using more textual elements) did not. Further analyses revealed that prior movie exposure positively affected brand evaluation. However, disclosure awareness reversed this effect. We conclude that children appear to be socialized with the existing textual disclosure and that disclosure awareness might be of importance in shielding children against persuasive influence. (shrink)

The mere exposure effect is the increase in positive affect that results from the repeated exposure to previously novel stimuli. We sought to determine if judgments other than affective preference could reliably produce a mere exposure effect for two-dimensional random shapes. In two experiments, we found that brighter and darker judgments did not differentiate target from distracter shapes, liking judgments led to target selection greater than chance, and disliking judgments led to distracter selection greater than chance. These (...) results for brighter, darker, and liking judgments were obtained regardless of whether shape recognition was greater (Experiment 1) or not greater (Experiment 2) than chance. Effects of prior exposure to novel shapes were reliably observed only for affective judgment tasks. These results are inconsistent with general predictions made by the nonspecific activation hypothesis, but not the affective primacy or perceptual fluency hypotheses which were discussed in terms of cognitive neuroscience research. (shrink)

BackgroundDue to causing inability of self-regulation and executive functions such as directed attention and visual searching for relevant information, mental fatigue impairs skilled performance in various sports. On the other hand, natural scenes could improve directed attention, which may considerably benefit visual searching ability and self-regulation. However, nature exposure as a potential intervention to improve skilled performance among mentally fatigued athletes has not been discussed thoroughly.PurposeTo propose the potential intervention for the impairment of skilled performance among mentally fatigued athletes (...) and generate a framework for future studies.MethodsA narrative review was applied to search broadly across disciplines, retrieving literature from several databases.ResultsThirty-three works of literature including 39 experiments were obtained. Finally, a conceptual framework was built regarding the effect of nature exposure intervention on skilled performance in athletes for future studies.ConclusionThree theories could be potentially integrated to be a conceptual framework and explain the mechanism of preventing prior mental exertion. Future studies could examine more on the duration of the intervention. (shrink)

Learners exposed to an artificial language recognize its abstract structural regularities when instantiated in a novel vocabulary (e.g., Gómez, Gerken, & Schvaneveldt, 2000; Tunney & Altmann, 2001). We asked whether such sensitivity accelerates subsequent learning, and enables acquisition of more complex structure. In Experiment 1, pre-exposure to a category-induction language of the form aX bY sped subsequent learning when the language is instantiated in a different vocabulary. In Experiment 2, while naíve learners did not acquire an acX bcY language, (...) in which aX and bY co-occurrence regularities were separated by a c-element, prior experience with an aX bY language provided some benefit. In Experiment 3 we replicated this finding with a 24-hour delay between learning phases, and controlled for prior experience with the aX bY language's prosodic and phonological characteristics. These findings suggest that learners, and the structure they can acquire, change as a function of experience. (shrink)

Prior research suggests that visual features of the classroom environment (e.g., charts and posters) are potential sources of distraction hindering children's ability to maintain attention to instructional activities and reducing learning gains in a laboratory classroom. However, prior research only examined short‐term exposure to elements of classroom décor, and it remains unknown whether children habituate to the visual environment with repeated exposure. In study 1, we explored experimentally the possibility that children may habituate to the visual (...) environment if the visual displays are static. We measured kindergarten children's patterns of attention allocation in a decorated classroom environment over a 2‐week period and compared the percentage of time children spent off‐task to a baseline condition in which the classroom environment was streamlined (i.e., charts, posters, and manipulatives were removed). The findings indicate that with more prolonged exposure to a static visual environment, partial habitation effects were observed: Attention to the environment declined at the end of the exposure period compared to the beginning of the study; however, the environment remained a significant source of off‐task behavior even after 2 weeks of exposure. In study 2, we extend this work by conducting a longitudinal observation of six primary classrooms in which we measured children's patterns of attention allocation in real classrooms for 15 weeks to investigate whether increasing familiarity with the classroom décor would influence attention toward the visual environment. No evidence of habituation was observed in genuine classrooms in study 2. Potential implications for classroom design and future directions are discussed. (shrink)

The current paper highlights a new, interactive Shiny App that can be used to aid in understanding and teaching the important task of conducting a prior sensitivity analysis when implementing Bayesian estimation methods. In this paper, we discuss the importance of examining prior distributions through a sensitivity analysis. We argue that conducting a prior sensitivity analysis is equally important when so-called diffuse priors are implemented as it is with subjective priors. As a proof of concept, we conducted (...) a small simulation study, which illustrates the impact of priors on final model estimates. The findings from the simulation study highlight the importance of conducting a sensitivity analysis of priors. This concept is further extended through an interactive Shiny App that we developed. The Shiny App allows users to explore the impact of various forms of priors using empirical data. We introduce this Shiny App and thoroughly detail an example using a simple multiple regression model that users at all levels can understand. In this paper, we highlight how to determine the different settings for a prior sensitivity analysis, how to visually and statistically compare results obtained in the sensitivity analysis, and how to display findings and write up disparate results obtained across the sensitivity analysis. The goal is that novice users can follow the process outlined here and work within the interactive Shiny App to gain a deeper understanding of the role of prior distributions and the importance of a sensitivity analysis when implementing Bayesian methods. The intended audience is broad and can include those with limited exposure to Bayesian methods or the specific model presented here. (shrink)

Arguments about the effects of repeated exposure to a suspenseful narrative raise controversial disputes over the paradox of suspense. The lexical meaning and theoretical analyses of suspense imply that suspense cannot be experienced repeatedly because, in such cases, the knowledge from prior viewings and the resolution of outcome will eliminate tension and suspense. However, previous studies have argued that suspense can be re-experienced even when the participants know the outcome or repeatedly confront a suspenseful narrative. This study investigated (...) the effects of repeated exposure to a suspenseful film by collecting self-reported questionnaires and measuring psychophysiological responses. The participants (N = 50) watched clips of a suspenseful film three times and answered self-reported items regarding suspense, arousal, and enjoyment. Psychophysiological data, including skin conductance level (SCL) and electrocardiogram (ECG), were collected while the participants watched the video clips. It was hypothesized that self-reported suspense, arousal, and enjoyment as well as the physiological indices of arousal (SCL) and attention (ECG) would decrease upon repeated viewing of suspenseful clips. Furthermore, it was postulated that there would be inter-group differences depending on the awareness of potential or definite change in outcome at the end of repeatedly shown suspenseful events. The results showed that self-reported suspense and arousal, as well as physiological measures of SCL, declined with repeated exposure, although there were no significant differences on self-reported enjoyment. No group difference was found in self-reported items, but meaningful significant changes were observed in the group comparison of SCL and ECG. The findings suggest that repeated exposure to suspenseful films could result in affective habituation or desensitization to repeated stimuli. The implications and limitations of the current study and suggestions for future research are discussed. (shrink)

Early exposure to stressful life events is associated with greater risk of chronic diseases and mental health problems, including anxiety. However, there is significant variation in how individuals respond to environmental adversity, perhaps due to individual differences in processing and regulating emotional information. Differences in cognitive control – processes necessary for implementing goal directed behavior – have been linked to both stress exposure and anxiety, but the directionality of these links is unclear. The present study investigated the longitudinal (...) pathway of environmental stress exposure during early adolescence on later adolescent anxiety, and the possible mediating mechanism of cognitive control. Participants were 674 Mexican-origin adolescents (mean age = 10.8 years, 50% male) enrolled in the California Families Project, an ongoing longitudinal study of Mexican-origin families. In the current analysis, we examined self-reports of environmental stressors at age 14 (Time 1), cognitive control at age 16 (Time 2), and anxiety at age 18 (Time 3). Structural equation modeling revealed that environmental stressors (Time 1) had both direct and indirect effects on later anxiety (Time 3) through their effects on cognitive control (Time 2), even when accounting for prior levels of anxiety (Time 2). Cognitive control accounted for 18% of the association between environmental stressors and adolescent anxiety: an increase in stressors decreased cognitive control (β = −0.20, p p = 0.004). These findings deepen our understanding of the mechanisms underlying the development of anxiety and highlight the importance of cognitive control as a potential protective factor. (shrink)

A series of experiments tested the hypothesis that very brief exposure to feared stimuli can have positive effects on avoidance of the corresponding feared object. Participants identified themselves as fearful of spiders through a widely used questionnaire. A preliminary experiment showed that they were unable to identify the stimuli used in the main experiments. Experiment 2 compared the effects of exposure to masked feared stimuli at short and long stimulus onset asynchronies . Participants were individually administered one of (...) three continuous series of backwards masked or non-masked stimuli: unreportable images of spiders , clearly visible images of spiders , or unreportable images of trees . Immediately thereafter, they engaged in a Behavioral Avoidance Test with a live, caged tarantula. Exposure to unreportable images of spiders resulted in greater approach towards the tarantula than unreportable neutral images. A post-hoc comparison with clearly visible exposure to these same images approached significance. These effects were maintained at a 1-week follow-up . In Experiment 3 , participants engaged in the BAT 1 week prior to the exposure manipulation in order to provide a baseline measurement of their avoidant behavior, and again immediately after the exposure manipulation. Exposure to unreportable images of spiders reduced avoidance of the tarantula. Similar exposure to trees did not. Implications for the non-conscious basis of fear are discussed. (shrink)

Twenty-four U.S. states have enacted HIV exposure laws that prohibit HIV-positive persons from engaging in sexual activities with partners to whom they have not disclosed their HIV-status. From a public health perspective, HIV serostatus exposure laws can be viewed as structural interventions that seek to limit the spread of HIV by acting at the policy level. A central premise of these laws is that informed partners are more likely to protect themselves by declining sex, by substituting less risky (...) activities for higher-risk ones, or by using condoms, than are uninformed partners. However, the effectiveness of these laws at preventing HIV transmission is not known.There is little standardization among existing HIV exposure laws, which vary substantially with respect to the sexual activities that are prohibited without prior serostatus disclosure. Among the strictest laws are those in Arkansas, Michigan, New Jersey, and Ohio which mandate disclosure prior to almost any type of sexual contact. (shrink)

Nanotechnology-enabled cosmetic products have been accessible in the market for the last 30 years. More than 250 products have been commercialized in the global market potentially exposing two billion people. These products are present in all formulations including creams, powders, lotions, and sprays. These involve contact with all body especially skin and mucosae; other tissues like airways and gastrointestinal tract can be reached by accidental exposure. Due to the size, NCPs exhibit an increased surface area volume ratio and biodistribution (...) that potentially augments their reactivity compared with bulk materials, which raises concerns for consumer’s safety. Consumers are attracted by the novel properties and functions of nano-enabled products but expose to technologies where no legal frameworks have been implemented to prevent potential side effects. Here, we review the current gaps between the commercialization process of NCPs and the regulatory frameworks to assess these products in USA, Europe, Japan, and Latin America prior and after commercialization. We identify the requirements for a proper assessment of the potential hazard of nanomaterials in cosmetics considering the nanomaterial properties. (shrink)

On March 28, 2017, the national Academy of Sciences, Engineering, and Medicine released a much-anticipated report on the Environmental Protection Agency's controlled human inhalation exposure studies. To understand the genesis of the document, a quick review of recent events is in order.Prior to 2006, the EPA adopted the Common Rule for intramural or extramural research funded by the agency.1 Although the EPA did not have a formal policy that applied to research sponsored by private companies, it applied scientific (...) and ethical standards to these studies on a case-by-case basis. In the 1990s, in support of requests to the agency to loosen its restrictions on pesticide residues on... (shrink)

Recent studies have exposed the startling inadequacy of health care providers knowledge about and practice of effective pain management. For example, in one study, it was reported that 79 percent of a random sample of 454 medical-surgical inpatients experienced pain during hospitalization, and that 58 percent of patients with pain considered the pain horrible or excruciating. In another study, 67 percent of 2,415 randomly selected hospitalized patients had pain during the twenty-four hours prior to being interviewed, and 50 percent (...) reported pain at the time of the interview. In a study of seriously ill hospitalized patients reported in 1996, half of the patients complained of pain, and one-sixth reported that they experienced extremely severe pain at least half the time. According to one literature review, 75 percent of cancer patients have reported suffering pain, and one study estimates that 25 percent of cancer patients die with severe unrelieved pain. Chronic nonmalignant pain has been described as an extremely prevalent problem, and over two-thirds of nursing home residents experience serious pain. (shrink)

While much earlier work has indicated that prior verb bias from lifelong language experience influences language processing, recent findings highlight the fact that verb biases induced during lab-based exposure sessions also influence processing. We investigated the nature of updating, i.e., how prior and current experience might interact in guiding subsequent sentence production. Participants underwent a short training session where we manipulated the bias of known English dative verbs. The prior bias of each verb for the double-object (...) (DO) versus the prepositional-object (PO) dative was estimated using a corpus. Current verb bias was counterbalanced and controlled experimentally. Bayesian mixed-effects logistic models of participants’ responses (DO or PO) during subsequent free-choice production showed that both the prior and current verb biases affected speakers’ construction choice. These effects were additive and not interactive, contrary to the prediction from error-based learning models. Semantic similarity to other verbs and their experimentally manipulated biases influenced sentence production, consistent with item-based analogy and exemplar theory. These results shed light on the potential mechanisms underlying language updating and the adaptation of sentence production to ongoing experience. (shrink)

Introduction: Resilience is a multidimensional and dynamic construct associated with positive growth and the capacity to transform stressful and negative factors into opportunities of personal development and self-improvement when faced with difficult experiences. The resilience process of each individual integrates multiple analysis levels, which range from genetic-environmental interactions to a complex process of adaptation between the individual and his/her family, friends, co-workers, society, and culture.Objective: To determine whether resilience improves in students of occupational therapy when exposed for the first time (...) to practice placement education.Methodology: Quasi-experimental, prospective, observational, multi-center study with a sample composed of students from the Degree of Occupational Therapy of the public universities of Málaga and Castilla-La Mancha. Two weeks prior to the beginning of the practice education period, the participants completed a questionnaire that included sociodemographic data and the area of their internships. They were also given the Spanish version of the Connor-Davidson's resilience scale. All these instruments were also completed 1 week after the end of the clinical practice.Results: There were statistically significant differences between the variables that make up resilience and the different internship areas. On the other hand, there was a significant improvement of global resilience after the clinical practice period, in both women and men, when the internship area was not considered.Conclusions: The results show that resilient students are more optimistic and work to improve a situation beyond doing simply what is expected of them, knowing how to control their feelings. This is beneficial for students in practice education, since, during these, they face difficult situations that require a resilient pattern, which helps reduce stress and the burnout syndrome. (shrink)

The current study examined whether infants use previous encounters for maintaining expectations for adults’ contingent responding. An unfamiliar adult responded contingently or non-contingently to infant signaling during an initial play situation and 10 min later presented an ambiguous toy while providing positive information (Experiment 1; forty-two 12-month-olds). The infants in the contingent group looked more at the adult during toy presentation and played more with the toy during the concluding free-play situation than the infants in the non-contingent group. When the (...) parent had responded contingently or non-contingently to infant bids (Experiment 2; forty 12-month-olds), the infants in the contingent group tended to look more at the parent and tended to play more with the toy than did the infants in the non-contingent group. The results indicate that from just a brief exposure, infants form expectations about adults’ responsiveness and maintain these expectations of contingent/non-contingent responding from one situation to another. (shrink)

Bird kill rate and disruption of habitat has been reported when industrial wind turbines are introduced into migratory bird paths or other environments. While the literature could be more complete regarding the documentation of negative effects on birds and bird habitats during the planning, construction, and operation of wind power projects, there is sufficient evidence to raise concerns. Authoritative and mandatory vigilance monitoring and long-term surveillance over the life of the industrial wind facility are lacking. By the time the documentation (...) of the rate of bird kills, including that of endangered species is available in an environs of an industrial wind turbine facility, the damage may be irreversible. This article briefly explores the negative environmental impacts of the siting of industrial wind turbines and associated infrastructure, including transformer stations and transmission lines, in proximity to migratory bird corridors, wetlands, and nesting grounds. Research is required prior to proceeding with further industrial wind development in these environs. The authors propose that there is sufficient scientific evidence to require invoking the precautionary principle and halting further development until these risks are resolved. (shrink)

Based on my prior exposure in Korean Buddhism, when I first picked up Polishing the Diamond I expected to see something of the more typical Korean Jogye fare-- gongan explanations, advice on meditation, maybe some lectures containing citations from classical Seon or scriptural literature, or something like the Zen-style sermons of Seung Sahn. What I found instead was a refreshingly new and unusually eclectic blend of teachings, and at least in the extent to which the focus is on (...) the actions of karma in daily life, perhaps more on the order of what one might expect to find in a text from a modern Theravada tradition. (shrink)

Norms play a crucial role in governing human societies. From an early age, humans possess an innate understanding of norms, recognizing certain behaviours, contexts, and roles as being governed by them. The evolution of normativity has been linked to its contribution to the promotion of cooperation in large groups and is intertwined with the development of joint intentionality. However, there is no evolutionary consensus on what normatively differentiated our hominin ancestors from the phylogenetic lineage leading to chimpanzees and bonobos. Here (...) we propose that the development of teaching through a process of evaluative feedback between parent and offspring functioned as a prerequisite for the later development of normativity. Parents approve or disapprove of offspring’s behaviours based on their own learned knowledge of what is appropriate or inappropriate. We argue our proposition using a simple model of cultural transmission, which shows the adaptive advantage offered by these elementary forms of teaching. We show that an important part of this adaptive advantage can arise from the benefits derived from guidance about which behaviours to adopt or reject. We propose that this type of guidance has fundamental elements that characterise the normative world. We complete our argument by reviewing several studies that examine the emergence of normativity in young children without prior exposure to a normative framework with respect to the behaviours under analysis. We suggest that this normativity is best interpreted as manifestations of teaching among young children rather than as norm recognition among early normative children. (shrink)

We investigated the properties of the sustained attention to response task . In the SART, participants respond to frequent neutral signals and are required to withhold response to rare critical signals. We examined whether SART performance shows characteristics of speed–accuracy tradeoffs and in addition, we examined whether SART performance is influenced by prior exposure to emotional picture stimuli. Thirty-six participants in this study performed SARTs after being exposed to neutral and negative picture stimuli. Performance in the SART changed (...) rapidly over time and there was a high correlation between participants errors of commission rate and their reaction time to the neutral targets . Regardless of exposure self-reported thoughts significantly correlated with both errors of commission and reaction times. Overall, the results support the view that the SART is a better measure of impulsive responding than sustained attention. (shrink)

We describe a unified framework for the understanding of structure representation in primate vision. A model derived from this framework is shown to be effectively systematic in that it has the ability to interpret and associate together objects that are related through a rearrangement of common “middle-scale” parts, represented as image fragments. The model addresses the same concerns as previous work on compositional representation through the use of what+where receptive fields and attentional gain modulation. It does not require prior (...) exposure to the individual parts, and avoids the need for abstract symbolic binding. (shrink)

People tend to grossly overestimate the size of their mirror-reflected face. Although this overestimation bias is robust, not much is known about its relationships to self-face perception. In two experiments, we investigated the overestimation bias as a function of the presentation of the own face , the identity of the seen face, and prior exposure to a real mirror. For this we developed a computerized task requiring size estimations of displayed faces. We replicated the observation that people overestimate (...) the size of their mirror-reflected face and showed that the overestimation can be reduced following a brief mirror exposure. We also found that left–right reversal modulates the overestimation bias, depending on the perceived face’s identity. These data underline the enhanced familiarity of left–right reversed self-faces and the importance of size perception for understanding mirror reflection processing. (shrink)

Crystallography has proven a rich source of ideas over several centuries. Among the many ways of looking at space groups, N. David Mermin has pioneered the Fourier-space approach. Recently, we have supplemented this approach with methods borrowed from algebraic topology. We now show what topology, which studies global properties of manifolds, has to do with crystallography. No mathematics is assumed beyond what the typical physics or crystallography student will have seen of group theory; in particular, the reader need not have (...) any prior exposure to topology or to cohomology of groups. (shrink)

This commentary on the target article underscores the need to examine the imagined trajectory of Place Spirituality, where person attachment and attachment to place through prior exposure are minimum or absent. Examples of such place attachment through sheer spiritual imagination or belief have been provided. It is further argued that while Place Spirituality may be complex, the exact developmental trajectory of Place Spirituality has not been investigated and requires future research attention. The model of transitional phenomenon and transitional (...) space by Donald Winnicott has been presented as a possible explanatory model. (shrink)

Fine (J Philos Logic 46(6):625–674, 2017) develops a unilateral and a bilateral truthmaker semantics for propositional logic. The unilateral approach trades off the primitive exact falsification relation of the bilateral approach for a primitive exclusion relation between states, thereby raising the question if exclusion serves any purpose other than to avoid exact falsification. We argue that exclusion is motivated independently of its use in avoiding exact falsification, namely as a foundation for the reconstruction of modal notions such as possibility and (...) necessity. This reconstruction in turn motivates what we call _emergent exclusion_: an atomic state can exclude a sum of atomic states collectively without excluding any of these atomic states individually. Emergent exclusion is banned in Fine (2017a) in order to maintain exact equivalence in de Morgan’s law \(\lnot (P \wedge Q) \Leftrightarrow \lnot P \vee \lnot Q\) ; we argue that the two sides of this law are not exactly equivalent and discuss a variety of state spaces that feature emergent exclusion. This paper aims to be accessible to linguists without prior exposure to truthmaker semantics. We highlight points of contact with natural language semantics, such as event semantics and algebraic semantics of plurals and conjunction. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Hume's Demarcation Project John Losee Demarcation, Ideas and Impressions David Hume sought to exclude certain concepts from the domain of empirically significant discourse. He was critical of talk about "substances" that bear qualities, "forces" that cause motions, "powers" that produce effects, "necessary connections" that determine sequences of events, "extension without matter" and "time independent of succession or change in any real existence."1 Hume proposed a demarcation ofideas, a demarcation (...) intended to exclude these notions. The demarcation project, if successful, would exclude Locke's notion of "substance" as well as Newton's notions of "Absolute Space" and "Absolute Time." Some interpreters have taken the demarcation project to be the centrepiece of Hume's philosophy. Others have seen it to be an incidental aspect of Hume's search for an empirical theory of human nature. I believe that David Pears was correct to insist that an acceptable account ofHume's philosophy include both the "destructive emphasis" and the "constructive emphasis."2 Hume's demarcation project is based on a presumed relation, or relations, between ideas and impressions. Hume made the following claims about "simple ideas," those ideas that "admit of no distinction nor separation" (T 2): 1)every simple idea in its first appearance is derived from some impression (Derivability Principle); 2)every simple idea in its first appearance copies some impression (Copy Principle); 3)every simple idea represents some impression (Representation Principle); 4)simple ideas and impressions resemble one another; 5)simple ideas correspond to impressions; 6)every simple idea is borroVd from some impression; Volume XVII Number 2 51 JOHN LOSEE 7)for every simple idea there is some temporally antecedent impression; and 8)impressions cause simple ideas. Primafacie, these claims are empirical claims about the genesis of our ideas. But within Hume's demarcation project these claims also function as criteria for membership in the class of simple ideas. Those ideas that satisfy the criteria constitute raw material from which complex ideas are formulated. Complex ideas are constructed from simple ideas. However, they are not copies of simple ideas. Aparticular complex idea is empirically significant provided that, 1) it is derivable from simple ideas; and 2) each of those simple ideas is derivable from impressions. The Case of the Missing Shade ofBlue Tensions arise within the demarcation project in part because Hume employs nonequivalent criteria—Derivability Principle, Copy Principle, Representation Principle—as if they were equivalent. The tension is acute in the case of the missing shade ofblue. The "missing shade" is an idea formulated by a person with extensive experience of colours, but no prior exposure to the shade in question. If this idea is a simple idea, then it is false that every simple idea copies some antecedent impression. Why did Hume cite—in both Treatise and Inquiry—this apparently destructive exception? Bernard Rollin has suggested that Hume may have cited the missing-shade-of-blue example as a rhetorical device toprotecthis dichotomous divisionofpropositionsinto those that are analytic a priori and those that are synthetic a posteriori (including the Derivabihty Principle).11 John O. Nelson agreed that Hume is concerned to emphasize the contingent, empirical status of the Derivabihty Principle.12 Nelson suggested that Hume sought tomake two points. The first pointis that an exception to the Derivability Principle is empirically possible. The second point is that thought-experiments like the missing-shade example are inadequate to establish conclusions about matters offact. To entertain such thought-experiments is to lapse into hypothetical speculation, a violation ofthe "experimental method ofreasoning."13 Perhaps it was for this reason that Hume dismissed the missing-shade case as unimportant. Hume urged that this case is "so particular and singular" thatit provides nogoodreason to abandon the Copy Principle (T 6). 52Hume Studies HUME'S DEMARCATION PROJECT D. M. Johnson has developed a hypothesis to explain why Hume believed that this exceptional case is not damaging to his demarcation project. According to Johnson, Hume may have believed that for a person to reconstruct a shade he never saw before, he must have developed an appropriately detailed Tiabitual spectrum'—i.e., an ordered set oftendencies and expectations concerning colours, built up as a result oflong experience with thingshavingthese colours—whichhe then employs... (shrink)

Davey reviews evidence purporting to distinguish between two accounts of selective associations – expectancy bias and evolved predispositions, although these hypotheses largely apply to different levels of causal analysis. Criticisms of primate studies in which subjects lack prior exposure to stimuli seem uncompelling. Expectancies may sometimes serve as proximal mediators in selective associations, but other factors, both proximate and ultimate, are clearly also involved.

Three experiments examined repetition priming for meaningful environmental sounds in a sound stem identification paradigm using brief sound cues. Prior encoding of target sounds together with their associated names facilitated subsequent identification of sound stems relative to nonstudied controls. In contrast, prior exposure to names alone in the absence of the environmental sounds did not prime subsequent sound stem identification performance at all . Explicit and implicit memory were dissociated such that sound stem cued recall was higher (...) following semantic than nonsemantic encoding, whereas sound priming was insensitive to manipulations of depth encoding . These results extend the findings of long-term repetition priming into the auditory nonverbal domain and suggest that priming for environmental sounds is mediated primarily by perceptual processes. (shrink)

In this paper, we explore whether the ethical positions of students are firmly entrenched when they enter college, or do they change due to maturity, experience to ethical discussions in coursework, work experience, or a combination of factors. This study compared the ethical attitudes of freshmen and junior accounting majors, and graduate MBA students when confronted with two ethical dilemmas. Undergraduates were found to be more justice oriented than their MBA counterparts, who were more utilitarian in their ethical approach. While (...) males tended to be more utilitarian, they were also more tentative and neutral in their responses. Females expressed more definite ethical positions than males when assessing specific ethical behaviors. Prior exposure to ethics via coursework or employment did not significantly affect ethical attitudes. (shrink)

Humans display more conditioned fear when the conditioned stimulus in a fear conditioning paradigm is a picture of an individual from another race than when it is a picture of an individual from their own race (Olsson, Ebert, Banaji, & Phelps, 2005). These results have been interpreted in terms of a genetic “preparedness” to learn to fear individuals from different social groups (Ohman, 2005; Olsson et al., 2005). However, the associability of conditioned stimuli is strongly influenced by prior (...) class='Hi'>exposure to those or similar stimuli. Using the Kalman filter, a normative statistical model, this article shows that superior fear conditioning to individuals from other groups is precisely what one would expect if participants perform optimal, Bayesian inference that takes their prior exposures to the different groups into account. There is therefore no need to postulate a genetic preparedness to learn to fear individuals from other races or social groups. (shrink)

Evidence from adult studies of deaf signers supports the dissociation between neural systems involved in processing visual linguistic and non-linguistic body actions. The question of how and when this specialization arises is poorly understood. Visual attention to these forms is likely to change with age and be affected by prior language experience. The present study used eye-tracking methodology with infants and children as they freely viewed alternating video sequences of lexical American sign language (ASL) signs and non-linguistic body actions (...) (self-directed grooming action and object-directed pantomime). In Experiment 1, we quantified fixation patterns using an area of interest (AOI) approach and calculated face preference index (FPI) values to assess the developmental differences between 6 and 11-month-old hearing infants. Both groups were from monolingual English-speaking homes with no prior exposure to sign language. Six-month-olds attended the signer’s face for grooming; but for mimes and signs, they were drawn to attend to the “articulatory space” where the hands and arms primarily fall. Eleven-month-olds, on the other hand, showed a similar attention to the face for all body action types. We interpret this to reflect an early visual language sensitivity that diminishes with age, just before the child’s first birthday. In Experiment 2, we contrasted 18 hearing monolingual English-speaking children (mean age of 4.8 years) vs. 13 hearing children of deaf adults (CODAs; mean age of 5.7 years) whose primary language at home was ASL. Native signing children had a significantly greater face attentional bias than non-signing children for ASL signs, but not for grooming and mimes. The differences in the visual attention patterns that are contingent on age (in infants) and language experience (in children) may be related to both linguistic specialization over time and the emerging awareness of communicative gestural acts. (shrink)

Authored by an acclaimed teacher of quantum physics and philosophy, this textbook pays special attention to the aspects that many courses sweep under the carpet. Traditional courses in quantum mechanics teach students how to use the quantum formalism to make calculations. But even the best students - indeed, especially the best students - emerge rather confused about what, exactly, the theory says is going on, physically, in microscopic systems. This supplementary textbook is designed to help such students understand that they (...) are not alone in their confusions (luminaries such as Albert Einstein, Erwin Schroedinger, and John Stewart Bell having shared them), to sharpen their understanding of the most important difficulties associated with interpreting quantum theory in a realistic manner, and to introduce them to the most promising attempts to formulate the theory in a way that is physically clear and coherent. The text is accessible to students with at least one semester of prior exposure to quantum (or "modern") physics and includes over a hundred engaging end-of-chapter "Projects" that make the book suitable for either a traditional classroom or for self-study. (shrink)

Infants are endowed with a proclivity to acquire language, whether it is presented in the auditory or visual modality. Moreover, in the first months of life, listening to language supports fundamental cognitive capacities, including infants’ facility to form object categories. Recently, we have found that for English-acquiring infants as young as 4 months of age, this precocious interface between language and cognition is sufficiently broad to include not only their native spoken language, but also sign language. In the current study, (...) we take this work one step further, asking how “sign-naïve” infants—hearing infants with no prior exposure to sign language—deploy their attentional and social strategies in the context of episodes involving either spoken or sign language. We adopted a now-standard categorization task, presenting 4- to 6-month-old infants with a series of exemplars from a single category. Each exemplar was introduced by a woman who appeared on the screen together with the object. What varied across conditions was whether this woman introduced the exemplar by speaking or signing. We coded infants’ visual attentional strategies and their spontaneous vocalizations during this task. Infants’ division of attention and visual switches between the woman and exemplar varied as a function of language modality. In contrast, infants’ spontaneous vocalizations revealed similar patterns across languages. These results, which advance our understanding of how infants allocate attentional resources and engage with communicative partners across distinct modalities, have implications for specifying our theories of language acquisition. (shrink)

Blending high-interest original writing with select primary sources on political theory, From Concept to Dialogue: An Introduction to Political Theory fosters appreciation for and critical thinking about major political concepts. The text poses thought-provoking questions that guide readers into drawing critical information out of challenging material. Section 1 of the text introduces key concepts and questions of political theory such as human nature, political change, justice, power, governance, and citizenship. Each chapter in this section contains engaging activities that allow readers (...) to apply these concept to their lives. In Section 2 readers are introduced to seminal thinkers including Aristophanes, Plato, Machiavelli, Hobbes, Locke, Rousseau, and Mill. Original works such as The Clouds, The Prince, the Apology of Socrates, and Leviathan are framed by introductions that place them in context. The discussion questions spark thought and discussion, support comprehension and retention, and encourage reflection on the concepts and questions in Section 1. Featuring foundational readings geared to students with no prior exposure to the discipline and original material that shows how they relate to our contemporary political world, From Concept to Dialogue is an ideal textbook for courses in introductory political science and political philosophy. Elissa Alzate holds a Ph.D. in political science from the University of California, Davis. Dr. Alzate is currently an assistant professor at Winona State University in Minnesota, where she has taught courses in the history of political thought, political ideologies, American political thought, political theories of education, religion and toleration in political thought, and feminist political theory. Her writing has appeared in Polity, and she is the author of the book Religious Liberty in a Lockean Society: Burwell v. Hobby Lobby, which is forthcoming from Palgrave MacMillan. Dr. Alzate is a member of the American Political Science Association and the Association for Political Theory. (shrink)

We report two experiments exploring the perception of how contemporary philosophy is often conducted. We find that (1) participants associate philosophy with the practice of conducting thought experiments and collating intuitions about them, and (2) that this form of inquiry is viewed much less favourably than the typical form of inquiry in psychology: research conducted by teams using controlled experiments and observation. We also found (3) an effect whereby relying on intuition is viewed more favorably in the context of team (...) inquiry than in individual inquiry and (4) that greater prior exposure to philosophy lowered one’s opinion of inquiry driven by intuitions and thought experiments. Finally with respect to participant gender, we found that (5) women favored observation over intuition more than men did, and (6) tended to view a question pursued by a research team as more important than men viewed it. (shrink)

Philosophy of education has an honored place in the history of Western philosophical thought. Its questions are as vital now, both philosophically and practically, as they have ever been. In recent decades, however, philosophical thinking about education has largely fallen off the philosophical radar screen. Philosophy of education has lost intimate contact with the parent discipline to a regrettably large extent--to the detriment of both. The Oxford Handbook of Philosophy of Education is intended to serve as a general introduction to (...) key issues in the field, to further the philosophical pursuit of those issues, and to bring philosophy of education back into closer contact with general philosophy. Distinguished philosophers and philosophers of education, most of whom have made important contributions to core areas of philosophy, turn their attention in these 28 essays to a broad range of philosophical questions concerning education. The chapters are accessible to readers with no prior exposure to philosophy of education, and provide both surveys of the general domain they address, and advance the discussion in those domains in original and fruitful ways. Together their authors constitute a new wave of general philosophers taking up fundamental philosophical questions about education--the first such cohort of outstanding general philosophers to do so (in English) in a generation. (shrink)

Objectives Practitioners in contemplative traditions commonly report experiencing an awareness that is distinct from sensory objects, thoughts, and emotions (“awareness itself”). They also report experiences of a void or underlying silence that is closely associated with this awareness. Subjects who carry out the Headless Way exercises frequently report an experience of emptiness or void at the same time as other contents (void-like experiences). The goals of this study were to (1) assess the reliability of these methods in eliciting the recognition (...) of awareness and void-like experiences in participants who had no prior exposure to these techniques, (2) investigate the prevalence of these experiences in these tasks, and (3) to differentiate these experiences from closely related and potential precursor experiences. -/- Method Twenty adults participated in in-depth individual interviews in which they were guided through the Headless Way exercises. A thematic analysis was conducted on the interview transcripts. -/- Results Twelve of the participants reported a void-like experience, and five participants reported an experience of awareness itself. These experiences were respectively categorized as subsets of the more general categories of perceptual absences and the sense of not being person-like. Another novel finding was the real-time reports of awareness and void-like experiences during the exercises. -/- Conclusions Our findings provide preliminary evidence that the Headless Way exercises can effectively induce experiences of emptiness and awareness in participants without prior experience. The findings suggest that such experiences can be elicited outside of a traditional meditation context, including in non-meditators. Furthermore, the experience of not being person-like and of perceptual absences may be precursors and more general forms of recognizing awareness itself and the void-like nature of the mind. (shrink)

Prior research on the influence of various ways of framing anthropogenic climate change do not account for the organized ACC denial in the U.S. media and popular culture, and thus may overestimate these frames' influence in the general public. We conducted an experiment to examine how Americans' ACC views are influenced by four promising frames for urging action on ACC —when these frames appear with an ACC denial counter-frame. This is the first direct test of how exposure to (...) an ACC denial message influences Americans' ACC views. Overall, these four positive frames have little to no effect on ACC beliefs. But exposure to an ACC denial counter-frame does significantly reduce respondents' belief in the reality of ACC, belief about the veracity of climate science, awareness of the consequences of ACC, and support for aggressively attempting to reduce our nation's GHG emissions in the near future. Furthermore, as expected by the Anti-Reflexivity Thesis, exposure to the ACC denial counter-frame has a disproportionate influence on the ACC views of conservatives, effectively activating conservatives' underlying propensity for anti-reflexivity. (shrink)

Postulating a variety of mutually isolated thought domains for prelinguistic creatures is both unparsimonious and implausible, requiring unexplained parallel evolution of each separate module. Furthermore, the proposal that domain-general concepts are not accessible without prior exposure to phonetically realized human language utterances cannot be implemented by any concept-acquisition mechanism.

A philosophical treatment of ideas, the book presents a philosophical dialogue much in the spirit of classical philosophical dialogues, notably those of Plato and Xenophon. As those authors do in a number of their works, Nick Pappas adopts a light and playful tone to treat a serious topic. This contrast helps bring out the truth, in an approachable style that requires no prior exposure to philosophy and heavy intellectual work.

Prior research suggests that voluntary environmental governance mechanisms operate to enhance a firm’s environmental legitimacy as opposed to being a driver of proactive environmental performance activities. To understand how these mechanisms contribute to the firm’s environmental legitimacy, we investigate whether environmental corporate governance characteristics are associated with voluntary environmental disclosure. We examine an increasingly important attribute of a firm’s disclosure setting, namely the disclosure of greenhouse gas (GHG) information. GHG information represents proprietary non-financial information about the firm’s exposure (...) to environmental concerns and is related to the firm’s operations and future profitability. Thus, we expect governance participants would view such information as a potentially important strategic device for managing stakeholders’ demands for information concerning environmental risks. We find that the presence of an environmental committee and a Chief Sustainability Officer (CSO) is positively associated with the likelihood of GHG disclosure and that CSOs are associated with disclosure transparency. Further analysis reveals that the likelihood of disclosure is associated with committee size, number of committee meetings, expertise of committee members and CSO, and overlap between the environmental committee and audit committee. Only expertise of the environmental committee members and the CSO are associated with GHG disclosure transparency, while larger committees tend to be associated with lower transparency. Our results are particularly important to those with interests in evaluating the potential role that corporate governance mechanisms play in responding to stakeholder concerns about environmental risks. Directors and officers who are considering appointment to similar governance positions, may wish to consider what attributes would make such governance positions more influential. (shrink)

Barry Dainton wrote Time and Space “to provide an introduction to the contemporary philosophical debate that presupposes little or nothing by way of prior exposure to the subject, but that will also take the interested and determined reader quite a long way”. He has achieved much of what he intended in this difficult enterprise. He covers the major arguments in a fair-minded way, writes clearly, and has found a good illustrator to provide a host of diagrams that his (...) student readers in particular will find helpful. The book also has a helpful glossary and list of web resources, as well as a brief bibliography and index. (shrink)