Cognitive Sciences

There is much interest in investigating the evolution question: How did consciousness evolve? In this paper, we evaluate the role that evolutionary considerations can play in justifying (i.e., confirming or falsifying) hypotheses about the origin, nature, and function of consciousness. Specifically, we argue against what we call evolution-first approaches to consciousness, according to which evolutionary considerations provide the primary and foundational lens through which we should assess hypotheses about the nature, function, or distribution of consciousness. Based on the example of (...) Walter Veit's account and additional reasoning, we contend that evolution-first approaches struggle to provide compelling empirical evidence for their key claims about consciousness. In contrast with these approaches, we argue that consciousness science needs to foundationally rely on experimental and observational evidence from humans and other present-day animals. If our arguments succeed, then researchers, when investigating consciousness, are better advised to take as their primary source of evidence consciousness’ present, not its past. Having said this, we acknowledge that evolutionary thinking plays an important role in consciousness science. We delineate this role by stressing several ways in which evolutionary considerations can substantially help advance consciousness research, although in a manner that avoids the evolution-first approach. Since our argument only concerns the assessment of hypotheses (the “context of justification”), it leaves it open which role evolutionary considerations play in generating hypotheses (the “context of discovery”). That is, evolutionary considerations may nevertheless play a foundational role in hypothesis generation in consciousness science. (shrink)

Blended facial expressions with a smiling mouth but non-happy eyes (neutral, sad, etc.) are often (incorrectly) judged as “happy”. We investigated the time course of this phenomenon, both forward and backward. To do this, we varied the order of presentation of a prime stimulus (upper half of a face) and a probe (lower half of a face) stimulus, and their display durations. The forward and the backward influence of the smile was assessed when the mouth was seen before or after (...) the eyes. Participants categorised the eye expression when the mouth and the eyes were congruent or incongruent. Results showed that, as a forward prime, a smiling mouth biased the recognition of incongruent (non-happy) eyes as if they were happy. The effect started as early as 100 ms and dissipated by 1000 ms. As a backward prime, the smile also biased recognition of non-happy eye expressions as happy for at least the first 300 ms. These results suggest, respectively, that the presence of a smiling mouth impairs the accurate encoding and memory for non-happy eyes. Angry eyes are the least susceptible to this effect, probably due to their distinctiveness. An alternative response (rather than sensitivity) bias was partially ruled out. (shrink)

Recent evidence increasingly suggests that comprehenders are capable of generating probabilistic predictions about forthcoming linguistic inputs during language comprehension. However, it remains debated whether language comprehenders predict low‐level word forms and whether they always make predictions. In this study, we investigated semantic and phonological prediction in high‐ and low‐constraining sentence contexts, utilizing the mouse‐tracking paradigm to trace mouse movement trajectories. Mandarin Chinese speakers listened to high‐ and low‐constraining sentences which resulted in high and low predictability for the critical target words. (...) While listening, participants viewed a visual display featuring two objects: one corresponding to the critical target word (the target object) and the other being either semantically related, phonologically related, or unrelated to the target word. Participants were instructed to click on the target object. The analysis of mouse movement trajectories revealed two key findings: (1) In both high‐ and low‐constraining contexts, there was a spatial attraction of the cursor toward semantic competitors, notably occurring before the target word was heard; (2) there are indications that phonological pretarget attraction effects were observed primarily in high‐constraining contexts. These findings suggest that the constraints of sentences have the potential to modulate the representational contents of linguistic prediction during language comprehension. Methodologically, the mouse‐tracking paradigm presents a promising tool for further exploration of linguistic prediction. (shrink)

During COVID, much of the world wore masks covering their lower faces to prevent the spread of disease. These masks cover lower facial features, but how vital are these lower facial features to the recognition of facial expressions of emotion? Going beyond the Ekman 6 emotions, in Study 1 (N = 372), we used a multilevel logistic regression to examine how artificially rendered masks influence emotion recognition from static photos of facial muscle configurations for many commonly experienced positive and negative (...) emotions. On average, masks reduced emotion recognition accuracy by 17% percent for negative emotions and 23% for positive emotions. In Study 2 (N = 338), we asked whether these results generalised to multimodal full-body expressions of emotions, accompanied by vocal expressions. Participants viewed videos from a previously validated set, where the lower facial features were blurred from the nose down. Here, though the decreases in emotion recognition were noticeably less pronounced, highlighting the power of multimodal information, we did see important decreases for certain specific emotions and for positive emotions overall. Results are discussed in the context of the social and emotional consequences of compromised emotion recognition, as well as the unique facial features which accompany certain emotions. (shrink)

Abstract -/- The Recursive-Collapse-Recombination (RCR) Model is a metastable, autopoietic, non-hierarchical, non-binary, and non-linear framework that defines reality as a continuously generative process. It describes how recursion (self-reinforcing structures), collapse (destabilization and phase shifts), and recombination (adaptive restructuring) interact to produce emergent, dynamic systems. Unlike equilibrium-based models, RCR establishes metastability as the core condition of reality, ensuring ongoing transformation rather than static resolution. The model is mathematically formalized to apply across domains, from physics and cognitive science to social structures and (...) AI systems. By framing reality as an interplay of recursion, collapse, and recombination, RCR reveals why deterministic reductionism fails and why reality remains an open-ended generative structure rather than a closed, finite system. -/- Keywords -/- Recursive-Collapse-Recombination (RCR) -/- Metastability -/- Phase Transitions -/- Nonlinear Systems -/- Emergence -/- Self-Organization -/- Autopoiesis -/- Indeterminacy -/- Reality Structuring -/- Generative Systems -/- --- -/- License (CC BY 4.0) -/- This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). -/- ✔ Share — Copy and redistribute the material in any medium or format. ✔ Adapt — Remix, transform, and build upon the material for any purpose, even commercially. -/- Attribution Requirement: You must give appropriate credit, provide a link to the license, and indicate if changes were made. This must be done in a reasonable manner, but not in any way that suggests endorsement by the original author. -/- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. (shrink)

We were concerned with the link between nostalgia and comfort in food experiences. In Studies 1 and 2, participants visualised 12 foods (Study 1) or consumed 12 flavour samples (Study 2). Following each respective food experience, they rated each food’s capacity to evoke nostalgia and comfort. In preregistered Studies 3 and 4, participants first visualised and wrote about eating either a personally nostalgic food or a regularly consumed food, and then indicated the extent to which the food experience increased nostalgia, (...) social connectedness, and comfort. In cross-sectional Studies 1 and 2, nostalgia associated with food experiences was linked to more comfort, but this relation exhibited greater complexity in experimental Studies 3 and 4. In the latter two studies, nostalgia for food experiences elevated comfort by strengthening social connectedness. (shrink)

Emotions are expressed via many features including facial displays, vocal intonation, and touch, and perceivers can often interpret emotional displays across the different modalities with high accuracy. Here, we examine how emotion perception from faces and voices relates to one another, probing individual differences in emotion recognition abilities across visual and auditory modalities. We developed a novel emotion sorting task, in which participants were tasked with freely grouping different stimuli into perceived emotional categories, without requiring pre-defined emotion labels. Participants completed (...) two emotion sorting tasks, one using silent videos of facial expressions, the other with audio recordings of vocal expressions. We furthermore manipulated the emotional intensity, contrasting more subtle, lower intensity vs higher intensity emotion portrayals. We find that participants’ performance on the emotion sorting task was similar for face and voice stimuli. As expected, performance was lower when stimuli were of low emotional intensity. Consistent with previous reports, we find that task performance was positively correlated across the two modalities. Our findings show that emotion perception in the visual and auditory modalities may be underpinned by similar and/or shared processes, highlighting that emotion sorting tasks are powerful paradigms to investigate emotion recognition from voices, cross-modal and multimodal emotion recognition. (shrink)

Some people are more prone to experience and value nostalgia – an emotion that often reminds us of important relationships – than others. In this research, we propose that this propensity may not only influence how we remember our social ties, but also directly affect the structure of our social network. Across three studies involving undergraduate students, online panel participants, and a population-based longitudinal sample (N = 1,467), we found that trait-like nostalgia was associated with increased motivation to maintain social (...) networks, which in turn predicted the number of close social ties. In other words, those who value nostalgia and experience it more frequently are more motivated to strengthen important relationships, which helps mitigate the loss of these bonds over the life span. These findings contribute to our understanding of the social nature of nostalgia and highlight its role in regulating our social networks. (shrink)

The functional neuro-anatomical model of attachment (NAMA) proposes that the balance between affective evaluation and cognitive control systems can be modulated by adult attachment styles and attachment priming. However, little is known about the characteristics of emotional conflict control that are modulated by attachment patterns. Accordingly, the present study adopted two experiments to investigate the associations between attachment styles, attachment (in)security priming, and emotional conflict control. Experiment 1 (N = 225) examined the association between attachment styles and emotional interference, demonstrating (...) that individuals high on attachment anxiety (AX) relied more on affective evaluation to hinder conflict control. Furthermore, Experiment 2 (N = 185) explored the effect of attachment priming on emotional conflict control. Moderated mediation models indicated that high sense of attachment security mediated the relationship between security priming and increased emotional interference when it interacted with high AX. Additionally, high sense of insecurity partially mediated the association between threat priming and reduced emotional interference only for individuals with high AX, while low AX strengthened the effect of threat priming on decreased emotional interference. Together, these findings provide supporting evidence for the NAMA that the emotional-cognitive balance in emotional conflict control is modulated by both attachment styles and attachment priming. (shrink)

Individuals attribute a higher truth value to repeated compared to novel information, the well-known truth effect. Also, information that contradicts what we have heard earlier is considered falser than both repeated and completely new information, known as the contradiction effect. These two effects are a challenge to the correction of misinformation because one cannot easily correct earlier misleading claims. In the present paper, we show a new and important factor that enhances the effectiveness of corrections, the syntactic placement of the (...) contradiction. We argue that because the subject of a sentence has a stronger psychological importance than the object, a contradiction of the subject (compared to the object) is felt as a stronger contrast to the earlier information and thus experienced as more false. Experiments 1 and 2 provided null results, possibly due to confounding material and task. Crucially, Experiments 3–5 (total N = 628) reliably showed that contradictions of the subject were perceived to be falser than contradictions of the object. (shrink)

I argue that compassion entails the experience of feelings that lie in tension with one another. Specifically, I argue that to be compassionate is to simultaneously identify with and feel separated from the regarded individual, and it is to feel empowered in being needed while also feeling powerless to prevent the other's suffering. Previous studies have typically only emphasized one side or the other of this complex dynamic, which has resulted in the phenomenon being cast in radically different directions: as (...) an ethically valuable end to be sought in social relations and, conversely, as a means of affirming one's privilege in an asymmetrical relationship with another person. (shrink)

Recent experimental work offers evidence that infants become aware of suffixes at a remarkably early age, as early as 6 months for the English suffix -s. Here, we seek to understand this ability though the strategy of computational modeling. We evaluate a set of distributional learning models for their ability to mimic the observed acquisition order for various suffixes when trained on a corpus of child-directed speech. Our best-performing model first segments utterances of the corpus into candidate words, thus populating (...) a proto-lexicon. It then searches the proto-lexicon to discover affixes, making use of two distributional heuristics that we call Terminus Frequency and Parse Reliability. With suitable parameter settings, this model is able to mimic the order of acquisition of several suffixes, as established in experimental work. In contrast, models that attempt to spot affixes within utterances, without reference to words, consistently fail. Specifically, they fail to match acquisition order, and they extract implausible pseudo-affixes from single words of high token frequency, as in [pi-] from peekaboo. Our modeling results thus suggest that affix learning proceeds hierarchically, with word discovery providing the essential basis for affix discovery. (shrink)

Large language models (LLMs) have been proposed as candidate models of human semantics, and as such, they must be able to account for conceptual combination. This work explores the ability of two LLMs, namely, BERT-base and Llama-2-13b, to reveal the implicit meaning of existing and novel compound words. According to psycholinguistic theories, understanding the meaning of a compound (e.g., “snowman”) involves its automatic decomposition into constituent meanings (“snow,” “man”), which are then connected by an implicit semantic relation selected from a (...) set of possible competitors (FOR, MADE OF, BY, …) to obtain a plausible interpretation (“man MADE OF snow”). Here, we leverage the flexibility of LLMs to obtain contextualized representations for both target compounds (e.g., “snowman”) and their implicit interpretations (e.g., “man MADE OF snow”). We demonstrate that replacing a compound with a paraphrased version leads to changes to the embeddings that are inversely proportional to the paraphrase's plausibility, estimated by human raters. While this relation holds for both existing and novel compounds, results obtained for novel compounds are substantially weaker, and older distributional models outperform LLMs. Nonetheless, the present results show that LLMs can offer a valid approximation of the internal structure of compound words posited by cognitive theories, thus representing a promising tool to model word senses that are at once implicit and possible. (shrink)

Hybrid Electric Vehicles (HEVs) are known for their ability to reduce carbon emissions and fuel consumption. However, managing the thermal aspects of HEVs, especially concerning their powertrains and battery systems, remains a significant challenge. Traditional cooling mechanisms often result in inefficiencies due to their static nature. This paper proposes an AI-based thermal management system designed to address these limitations by offering dynamic, adaptive thermal regulation for HEVs. The system integrates real-time data monitoring with AI algorithms to optimize the cooling process (...) based on vehicle operating conditions, thereby reducing energy wastage and enhancing overall vehicle performance. By employing machine learning models, the system can predict thermal anomalies and adjust cooling efforts accordingly, thereby preventing overheating, improving battery life, and minimizing wear on the electric motor and power electronics. The proposed AI-based thermal management system combines predictive analytics, data-driven decision-making, and advanced cooling methodologies to ensure optimal thermal regulation under varying driving conditions. This paper provides a comprehensive overview of existing thermal management technologies in HEVs, identifies current challenges, and presents the AI-enhanced system as a cutting-edge solution for improving HEV efficiency and reliability. (shrink)

Phenomenal experiences of immaterial spiritual beings—hearing the voice of God, seeing the spirit of an ancestor—are a valuable and largely untapped resource for the field of cognitive science. Such experiences, we argue, are experiences of the mind, tied to mental models and cognitive-epistemic attitudes about the mind, and thus provide a striking example of how, with the right combination of mental models and cognitive-epistemic attitudes, one's own thoughts and inner sensations can be experienced as coming from somewhere or someone else. (...) In this paper, we present results from a large-scale study of U.S. adults (N = 1779) that provides new support for our theory that spiritual experiences are facilitated by a dynamic interaction between mental models and cognitive-epistemic attitudes: A person is more likely to hear God speak if they have the epistemic flexibility and cultural support to shift, temporarily, away from a mundane model of mind into a more “porous” way of thinking and being. This, in turn, lays the foundation for a meditation on how mental models and cognitive-epistemic attitudes might also interact to facilitate other phenomena of interest to cognitive science, such as fiction writing and scientific discovery. (shrink)

Until, 1971, articles were not freely accessible to everyone online. Project Gutenberg made the dream a reality. Exorbitant increases in the cost of print journals have forced publishers to reduce their publications and turn them from the print to the electronic journal (e-journal) medium. Higher visibility of Open Access (OA) leads to a higher number of citations, better h-index of authors and the Impact Factor (IF) of journals, which gains the popularity of e-journals. However, authors face a problem in predatory (...) journals, Article Processing Charges (APC), etc. It is not late to write this article for in-depth understanding of e-journals and the impact of Artificial Intelligence (AI) in academic scholarships, especially for novice readers, authors, and researchers. This article also depicts what important things you need to keep in mind when publishing your article to go to a higher level in the era of electronic publication. (shrink)

Technological innovations are increasingly promoted as solutions to climate change. However, many innovations, including Carbon Capture and Storage, bioplastics, and glacier geo engineering, face significant limitations, high costs, and unintended consequences that undermine their sustainability benefits. Using Granular Interaction Thinking Theory (GITT), grounded on information theory, quantum mechanics, and Mindsponge theory, in this study, we analyze how excessive technological innovations create an “innovation curse” and contribute to the erosion of Indigenous and Local Knowledge. Our findings reveal that market and institutional (...) biases favor high-tech solutions, sidelining proven ecological strategies that operate within planetary boundaries. We propose the eco-surplus framework, which emphasizes the integration of Indigenous and Local Knowledge and nature-based solutions as scalable, cost-effective climate interventions. Transitioning from an “eco-deficit” to an “eco surplus” culture requires institutional shifts that prioritize ecological intelligence over proprietary technologies. Our study emphasizes the urgency of aligning sustainability efforts with regenerative, community-driven practices to foster long-term environmental resilience. (shrink)

We offer a novel motivational account of romantic love, which portrays it as a means to the end of feeling significant and worthy. According to the model, falling in love with a partner depends on the actor's perceptions that (1) the partner possesses meritorious characteristics, and (2) that they appreciate the actor and view them as significant. We assume that these two factors multiplicatively combine with the magnitude of actor's quest for significance to determine the likelihood of actor becoming enamored (...) with partner. The multiplicative model has two major implications: 1. If any one of the partner's merit, appreciation, or actor's significance quest factors falls below its respective threshold of acceptability (such that it is subjectively non-existent), the likelihood of falling in love will be negligible. 2. Above their acceptability thresholds, levels of (partner's) merit, appreciation and (actor's) significance quest factors compensate for one another. A partner's lower standing on merit or appreciation is compensated in its impact on falling in love by the partner's higher standing on the remaining dimension. Furthermore, lower levels of either or both of these factors are compensated for by the actor's higher level of significance quest. Our model affords a broad account of diverse love phenomena, allows the derivation of several specific hypotheses supported by prior close-relations research as well as new data, and it offers novel avenues for further research on classic issues in romantic love. The discussion considers our model's unique implications and examines its relation to other theories of love. (shrink)

Participation in, and attendance at, court often positions people amid a charged emotional environment, where the evidence frequently involves distressing accounts and the stakes of decision-making are high. Research has explored the impact of this environment on various court protagonists. What this research has failed to consider in detail, however, are the ways in which such vectors of emotional reaction, containment and contagion interact and flow across the criminal court space: yielding affective environments in which emotion is not a commodity (...) held (or denied) by one person, but a force that permeates and seeps into the spaces of justice. In this article, we set out the case for why such an understanding is necessary and instructive. (shrink)

Some maladaptive thought processes are characterized by reflexive and habitual patterns of cognitive and emotional reactivity. We review theoretical and empirical work suggesting that mindfulness—a state of nonjudgmental awareness of the present moment—can facilitate the discontinuation of such automatic mental operations. We propose a framework that suggests a series of more specific mechanisms supporting the de-automatizing function of mindfulness. Four related but distinct elements of mindfulness (awareness, attention, focus on the present, and acceptance) can each contribute to de-automatization through subsequent (...) processes, including discontinuing automatic inference, enhancing cognitive control capacity, facilitating metacognitive insight, and preventing suppression or thought distortion. De-automatizing can, in turn, allow enhancement of adaptive self-control ability and increased well-being. (shrink)

Coregulation refers to the process by which relationship partners form a dyadic emotional system involving an oscillating pattern of affective arousal and dampening that dynamically maintains an optimal emotional state. Coregulation may represent an important form of interpersonal emotion regulation, but confusion exists in the literature due to a lack of precision in the usage of the term. We propose an operational definition for coregulation as a bidirectional linkage of oscillating emotional channels between partners, which contributes to emotional stability for (...) both partners. We propose several distinctions and raise unanswered questions that will need to be addressed in order to understand the relevance of coregulation for well-being in adulthood. (shrink)

Extinction learning although initially successful in blocking fear responses, can result in relapse in some individuals over time. This deficit demands a strategy that could reinforce the extinction of fear. The current study aimed to investigate the top-down regulatory processes like cognitive reappraisal and the nature of reappraisal on augmentation of fear extinction and retention. We used a screaming lady fear conditioning paradigm with 63 participants (M = 43, F = 20; Mean (SD) age = 20.6 (1.40) years) and subjective (...) fear, valence, expectancy ratings and skin conductance response (SCR) as outcome measures. The participants were randomly assigned into three groups: creative reappraisal, ordinary reappraisal and standard extinction groups and completed acquisition (day 1), extinction (day 2) and extinction-retest (day 3) phases. Our results indicate that cognitive reappraisal aimed at reducing the aversiveness of the UCS does not disrupt prediction error during extinction. Our results did not indicate any enhanced effect of cognitive reappraisal on subjective and physiological measures of conditioned fear responses during extinction. Our findings highlight the gap between the implementation of cognitive reappraisal and successful affective outcomes. Effective cognitive reappraisal requires careful consideration of factors like cognitive effort, situation intensity, reappraisal affordance, implementation cost and appraisals associated with fear. Interventions aimed at enhancing extinction through cognitive reappraisal should consider these factors for the effective implementation of cognitive reappraisal. (shrink)

Negation is a cornerstone of human language and one of the few universals found in all languages. Without negation, neither categorization nor efficient communication would be possible. Languages, however, differ remarkably in how they express negation. It is yet widely unknown how the way negation is marked influences the acquisition process of first language learners. Here, we investigate whether universal or language-specific cues are more relevant for the acquisition process. We test to what extent frequency and salience features (morphosyntactic boundedness, (...) position of the negation marker, allomorphy) influence the acquisition of negation. We use naturalistic longitudinal data from 17 children (age 24–36 months) learning nine typologically maximally diverse languages spoken in very diverse cultural contexts ranging from western urban to subsistence farming: Chintang, English, Indonesian, Japanese, Qaqet, Russian, Sesotho, Turkish, and Yucatec Mayan. Distributional analyses show that the amount and type of input of negation that children hear vary considerably across cultures. Despite significant differences in the input that children receive, we observe a universal pattern in the acquisition of negation: Children transition from relatively easy and salient free negators to less salient bound negator morphemes in their use of negation. Our results show that frequency and morphosyntactic boundedness explain the development of flexibility in the acquisition of negation across all of the nine languages. We further find that the developmental path is shaped by the interaction between frequency and language-specific parameters of salience that are contingent on grammatical features of negation marking in different languages, such as the position of the negation marker and allomorphic variation. Our language-specific findings highlight cross-linguistic variation, which reflects cross-cultural differences in the amount of input of negative utterances children receive. Taken together, this study provides cross-linguistic evidence for the acquisition of negation and emphasizes the interplay of universal and language-specific factors in the acquisition process. (shrink)

This article discusses the intricacies of species identification, using a real-life case of mushroom poisoning as a focal point. Two individuals had fallen seriously ill after having consumed mushrooms presumed to belong to the Leccinum group and the Boletus edulis complex. An interdisciplinary team of experts including the author attempted to diagnose the cause and to develop effective treatment. Leveraging expertise in psychology and mycology, the article highlights cognitive factors, such as the suggestibility of eyewitness memory, alongside biological factors, such (...) as complexities of fungal taxonomy, that jointly hamper species identification. The case also sparked discussions among mycologists on the potential toxicity of ostensibly safe mushrooms. The article stresses the imperative for continual updates in mycological knowledge and emphasizes broader implications of cultural conceptions and the dynamic nature of species boundaries in the context of mushroom identification, with the tragic outcome of the incident underscoring the urgency of addressing these issues across both cognitive science and mycology. (shrink)

Remarking on Geniusas’ phenomenological explication of nostalgia, I review nostalgia as a form of daydreaming but with its own unique constituent of wider temporal horizons. Also, I concur with Geniusas’ observation that nostalgia is about a boundary of impossibility whereas most other forms of daydreaming offer possibility. I then contrast two modes of nostalgia, fulling nostalgia that playfully, and even lucidly, accepts the temporal boundaries and pathological nostalgia that makes demands on the temporal boundary. I conclude with a reflection, on (...) the cultural level, on how reactionary social movements are typically characterized by pathological nostalgia that rejects current conditions and demand a return to an impossible past. This highlights the significance of nostalgia for further study. (shrink)

In spoken languages, children acquire locative terms in a cross‐linguistically stable order. Terms similar in meaning to in and on emerge earlier than those similar to front and behind, followed by left and right. This order has been attributed to the complexity of the relations expressed by different locative terms. An additional possibility is that children may be delayed in expressing certain spatial meanings partly due to difficulties in discovering the mappings between locative terms in speech and spatial relation they (...) express. We investigate cognitive and mapping difficulties in the domain of spatial language by comparing how children map spatial meanings onto speech versus visually motivated forms in co‐speech gesture across different spatial relations. Twenty‐four 8‐year‐old and 23 adult native Turkish‐speakers described four‐picture displays where the target picture depicted in‐on, front‐behind, or left‐right relations between objects. As the complexity of spatial relations increased, children were more likely to rely on gestures as opposed to speech to informatively express the spatial relation. Adults overwhelmingly relied on speech to informatively express the spatial relation, and this did not change across the complexity of spatial relations. Nevertheless, even when spatial expressions in both speech and co‐speech gesture were considered, children lagged behind adults when expressing the most complex left‐right relations. These findings suggest that cognitive development and mapping difficulties introduced by the modality of expressions interact in shaping the development of spatial language. (shrink)

Despite the importance of greetings for opening social interactions, their multimodal coordination processes remain poorly understood. We used a naturalistic, lab‐based setup where pairs of unacquainted participants approached and greeted each other while unaware their greeting behavior was studied. We measured the prevalence and time course of multimodal behaviors potentially culminating in a handshake, including motor behaviors (e.g., walking, standing up, hand movements like raise, grasp, and retraction), gaze patterns (using eye tracking glasses), and speech (close and distant verbal salutations). (...) We further manipulated the visibility of partners’ eyes to test its effect on gaze. Our findings reveal that gaze to a partner's face increases over the course of a greeting, but is partly averted during approach and is influenced by the visibility of partners’ eyes. Gaze helps coordinate handshakes, by signaling intent and guiding the grasp. The timing of adjacency pairs in verbal salutations is comparable to the precision of floor transitions in the main body of conversations, and varies according to greeting phase, with distant salutation pair parts featuring more gaps and close salutation pair parts featuring more overlap. Gender composition and a range of multimodal behaviors affect whether pairs chose to shake hands or not. These findings fill several gaps in our understanding of greetings and provide avenues for future research, including advancements in social robotics and human−robot interaction. (shrink)

The relationships between perceived fatigue and changes in sustained attention performance during early stages of working on cognitively demanding tasks remain poorly understood. In addition, concerns have been raised that self-ratings of fatigue may be biased by socially desirable response tendencies, potentially confounding the relationship between perceived fatigue and attention performance. In this study, we assessed perceived fatigue briefly before tracking changes in concentration performance, processing speed, and error rates among N = 110 tenth graders, while they completed the d2-R (...) test of sustained attention. By statistically controlling for social desirability, we examined relationships between perceived fatigue and the initial levels and slopes of three latent growth-curves capturing changes in the d2-R test’s performance measures. Individuals with higher fatigue exhibited lower concentration performance, a weaker decline in processing speed, and a higher error rate over the course of testing. Post hoc power analyses supported the robustness of our results. Implications for mental fatigue research are discussed. (shrink)

Remembering when emotional experiences occurred can be adaptive, yet there is no consensus on how emotion influences temporal aspects of memory. Temporal memory, a type of associative memory, refers to the capacity to encode, store, and retrieve information about the sequence and timing of events. This Special Issue presents evidence on how emotion affects three aspects of temporal memory: temporal-order, temporal source, and event segmentation. The contributions suggest that emotion often increases temporal-order memory, a result that is harder to reconcile (...) with some dominant emotional memory theories, including the Object-Based Framework, the Dual Representation Account or other trade-off models, but may fit with Arousal-Biased Competition theory. The contributions also suggest that emotion can act as a boundary between events, although only under some experimental set-ups. Findings regarding its effect on temporal source memory were less clear. We discuss the diversity of findings in light of theories of emotional associative memory and methodological factors, such as the direction of the shift in emotional experience and discrepancies between temporal-order and temporal distance measures as indices of event boundaries. We provide a roadmap for future studies aimed at understanding how emotion shapes the fate of our memories as they unfold in time. (shrink)