© 2016 Elsevier LtdJumping spiders are famous for their visually driven behaviors [1]. Here, however, we present behavioral and neurophysiological evidence that these animals also perceive and respond to airborne acoustic stimuli, even when the distance between the animal and the sound source is relatively large and with stimulus amplitudes at the position of the spider of ∼65 dB sound pressure level. Behavioral experiments with the jumping spider Phidippus audax reveal that these animals respond to low-frequency sounds by freezing—a common (...) anti-predatory behavior characteristic of an acoustic startle response. Neurophysiological recordings from auditory-sensitive neural units in the brains of these jumping spiders showed responses to low-frequency tones —recordings that also represent the first record of acoustically responsive neural units in the jumping spider brain. Responses persisted even when the distances between spider and stimulus source exceeded 3 m and under anechoic conditions. Thus, these spiders appear able to detect airborne sound at distances in the acoustic far-field region, beyond the near-field range often thought to bound acoustic perception in arthropods that lack tympanic ears [2]. Furthermore, direct mechanical stimulation of hairs on the patella of the foreleg was sufficient to generate responses in neural units that also responded to airborne acoustic stimuli—evidence that these hairs likely play a role in the detection of acoustic cues. We suggest that these auditory responses enable the detection of predators and facilitate an acoustic startle response. Video. (shrink)

Temporal consciousness is philosophically problematic because it appears to have features that cannot be analyzed in a way compatible with the fundamental view of time as a one-dimensional order of events. For example, it seems to be a manifest fact of experience that within a strictly present state of consciousness one can be immediately aware of a succession of events, yet the standard view of time denies that successive events can co-exist, so how can they be given together in a (...) present perceptual state? Such puzzles have occasionally led philosophers to reject scientific or mathematical theories of time. Some time ago C. D. Broad developed a largely unappreciated theory of temporal cognition to cope with these puzzles. In this paper the evolution of Broad’s theory is traced, and it is defended from the misinterpretations of later critics. Finally, it is suggested that a modification of Broad’s theory, which frees it from the trappings of sense-data epistemology, shows it to be compatible with sane current naturalistic approaches to experience that also would need to account for temporal experience within the framework of scientific time. (shrink)

Some recent physiological data indicate that the “subjective timing” of experiences can be “automatically referred backwards in time” to represent a sequence of events even though the earlier portions of associated neurophysiological activity are themselves insufficient to elicit the experience of any sensation. The challenge, then, is to explain how subjects can experience what they do in the reported ways when, if one looked just at certain neurophysiological activity, it would seem that perhaps subjects should report their sensations differently. The (...) phenomenon has seemed sufficiently remarkable to the neurobiologist John Eccles to count as evidence for mind-body dualism. This dualistic interpretation has resulted in a spirited attack by P. S. Churchland on both the physiological research and the dualistic interpretation. Her attack resulted in an equally spirited defense of the research by the primary investigator, B. Libet, where he reaffirmed his more guarded interpretation that “the temporal discrepancy creates relative difficulties for identity theory, but that these are not insurmountable”. In turn, Churchland has defended her criticism of Libet's research so that, for her, Libet's hypothesis remains “infirm and unconfirmed”. (shrink)

A recent version of the causal theory of time makes crucial use of a concept of the genidentity of events when it attempts to define temporal betweenness in terms of empirical, physical properties. By presenting and discussing an apparent counter-example it is argued that the role of genidentity in an empirical theory of time is problematic. In particular, it may be that the temporal behavior of objects is used to decide which events are genidentical, and, if so, the definition of (...) temporal betweenness is circular. On the other hand, though there are strategies for avoiding the charge of circularity, in certain hypothetical situations the definition may yield inconsistent temporal orders. Then, the definition would have to be supplemented by a choice of temporal orders, and this choice may introduce an element of conventionality into the causal theory of time. (shrink)

This chapter attempts to show how ancient Greek Heraclitus' and Parmenides' radical rejection of some common “mortal beliefs” resulted from their different views of time. Granting that common mortals are likely to persist in their “dazed” “two‐headedness,” the issues morphed into challenges for science and philosophy. This chapter poses the question of whether mortals achieve an explanation for the human experience of time and passage, one that coheres with a more comprehensive image of reality. It also explores whether science can (...) settle on a tenseless, relational (Parmenidean) image or will something like Heraclitius' logos rule the collapse of wave functions, the evolution of quantum worlds. The chapter concludes with a glimpse at mortal cosmologies. (shrink)

This paper examines the relationship between organizational ethical culture in two large international CPA firms, auditors'' personal values and the ethical orientation that those values dictate, and judgments in ethical dilemmas typical of those that accountants face. Using an experimental task consisting of multiple judgments designed to vary in "moral intensity" (Jones, 1991), and unique as well as tried-and-true approaches to variable measurements, this study examined the judgments of more than three hundred participants in our study. ANCOVA and path analysis (...) results indicate that: (1) Ethical judgments in situations of high moral intensity are affected by personal values and by environmental variables, such as the professional code of conduct (direct and indirect effects) and previous ethics instruction (direct effect only). (2) Corporate ethical culture, and a relatively strong firm rules-orientation, affect auditors'' idealism but not relativism, and therefore indirectly affect ethical judgments. Jones'' (1991) moral intensity argument is supported: differences in the characteristics of specific judgment tasks apparently result in different decision processes. (shrink)

In previous research, we have argued that private companies should be more open with their scientific research findings. However, our research assumed, somewhat naively perhaps, that public institutions were quite open. Recent findings have suggested otherwise, and in this paper we explore the dilemma faced by industry, universities, and society in attempting to balance the needs of openness (to rapidly advance the body of knowledge), with secrecy (to protect the economic returns to a new innovation).

In Object and Property, Arda Denkel tries to base metaphysics on perceivable objects—or, rather, to articulate an ontology saying what such particular objects really are. Basically, the world consists of Aristotelian substances, but, for Denkel, substances turn out to be bundles, or “compresences,” of properties, and properties themselves are asserted to be particulars. In the end, everything and everything’s “analytic constituents” are particular: objects are bundles of property occurrences having some necessary unity; pieces of matter are bundles of property occurrences (...) which lack the unity of objects; and, finally, properties are particulars. Denkel’s aim, at least in part, is to avoid any temptation to posit either “mysterious” prime matter or universals. (shrink)

Focal brain metabolic effects detected by proton magnetic resonance spectroscopy (MRS) in obsessive-compulsive disorder (OCD) represent prospective indices of clinical status and guides to treatment design. Sampling bilateral pregenual anterior cingulate cortex (pACC), anterior middle cingulate cortex (aMCC), and thalamus in 40 adult patients and 16 healthy controls, we examined relationships of the neurometabolites glutamate+glutamine (Glx), creatine+phosphocreatine (Cr), and choline-compounds (Cho) with OCD diagnosis and multiple symptom types. The latter included OC core symptoms (Yale-Brown Obsessive-Compulsive Scale - YBOCS), depressive symptoms (...) (Montgomery-Åsberg Depression Rating Scale - MADRS), and general functioning (Global Assessment Scale - GAS). pACC Glx was 9.7% higher in patients than controls. Within patients, Cr and Cho correlated negatively with YBOCS and MADRS, while Cr correlated positively with the GAS. In aMCC, Cr and Cho correlated negatively with MADRS, while Cr in thalamus correlated positively with GAS. These findings present moderate support for glutamatergic and cingulocentric perspectives on OCD. Based on our prior metabolic model of OCD, we offer one possible interpretation of these group and correlational effects as consequences of a corticothalamic state of elevated glutamatergic receptor activity alongside below-normal glutamatergic transporter activity. (shrink)

Efforts to counter software piracy are an increasing focus of software publishers. This study attempts to develop a profile of those who illegally copy software by looking at undergraduate and graduate students and the extent to which they pirate software. The data indicate factors that can be used to profile the software pirater. In particular, males were found to pirate software more frequently than females and older students more than younger students, based on self-reporting.

This paper explores a new reason for preferring a model-theoretic approach to understanding the nature of scientific theories. Identifying the models in philosophers' model-theoretic accounts of theories with the concepts in cognitive scientists' accounts of categorization suggests a structure to families of models far richer than has commonly been assumed. Using classical mechanics as an example, it is argued that families of models may be "mapped" as an array with "horizontal" graded structures, multiply hierarchical "vertical" structures, and local "radial" structures. (...) These structures promise important implications for how scientific theories are learned and used in actual scientific practice. (shrink)

This article addresses the implications of rapid and uncertain ecological change, and global climate change in particular, for reserve oriented and restoration oriented ecosystem management. I argue for the following conclusions: (1) rapid and uncertain ecological change undermines traditional justifications for reserve oriented and restoration oriented ecosystem management strategies; (2) it requires rethinking ecosystem management goals, not just developing novel strategies (such as assisted colonization) to accomplish traditional goals; (3) species preservation ought to be deemphasized as an ecosystem management goal; (...) (4) reserve oriented ecosystem management remains well justified, but the goals for it must be revised. (shrink)

In a series of recent papers beginning with their “Splitting a difference of opinion: The shift to negotiation” Jan Albert van Laar and Erik Krabbe claim that it is sometimes reasonable to shift from a critical discussion to a negotiation in order to settle a difference of opinion. They argue that their proposal avoids the fallacies of bargaining and middle ground. Against this permissive policy for shifting to negotiation, we argue that the motivating reasons for such shifts typically fail, and (...) that the permissive policy avoids neither fallacy while structurally incentivizing two types of strategic maneuvering that constitute rational and argumentative hazards: argumentative overcharge and abandonment of discussion. (shrink)

From the perspective of cognitive science, it is illuminating to think of much contemporary scientific research as taking place in distributed cognitive systems. This is particularly true of large-scale experimental and observational systems such as the Hubble Telescope. Clark, Hutchins, Knorr-Cetina, and Latour insist or imply such a move requires expanding our notions of knowledge, mind, and even consciousness. Whether this is correct seems to me not a straightforward factual question. Rather, the issue seems to be how best to develop (...) a theoretical understanding of such systems appropriate to the study of science and technology. I argue that there is no need to attribute to such systems as a whole any form of cognitive agency. We can well understand the importance of such systems while restricting agency to the human components. The implication is that we think of these large-scale distributed cognitive systems not so much as unified wholes, but as hybrid systems including both physical artifacts and ordinary humans. (shrink)

Fundamental to the modern conception of historical perspective was the position that nature had its own integrity and that a common human nature underlay human action in history. The first tenet was an achievement of the Scholastics, the second of Italian humanists of the fourteenth century. In order to justify the reading of ancient pagan texts an early humanist Albertino Mussato had resorted to the late ancient and medieval tradition that the pagan poets had been divinely inspired to predict the (...) coming of Christ and a number of other revealed truths. Subsequently, however, Petrarch, Boccaccio, and Salutati argued that if poetic genius was a divine gift to individuals, poetic creation was a product of human effort. The consequent desanctification of the ancient writers allowed them to be approached as historical human beings. Nevertheless, the new enthusiasm for Plato beginning with Bruni initiated a retreat from this position and a return to the medieval confusion between the world of grace and the world of nature. By the second half of the fifteenth century, Plato’s “divine madness of the poets” was being interpreted to mean that the ancient poets had been divinely inspired to utter Christian truths. (shrink)

In this paper, I will develop a nontrivial interpretation of Feyerabend's concept of a hidden anomalous fact. Feyerabend's claim is that some anomalous facts will remain hidden in the absence of alternatives to the theories to be tested. The case of Brownian motion is given by Feyerabend to support this claim. The essential scientific difficulty in this case was the justification of correct and relevant descriptions of Brownian motion. These descriptions could not be simply determined from the available observational data. (...) An examination, however, of this case shows that no alternative theory is or historically was thought to be necessary in order to justify descriptions of Brownian motion that "directly" refute thermodynamics. While Feyerabend's appraisal of this case therefore is incorrect, a sense is developed in which successful alternatives lend inductive support to the correctness of refuting experimental descriptions. Crucial though to the explanation of this support is the notion of arguments that show the possibilities for improving experimental fit. (shrink)

Agreement between "independent" measurements of a theoretically posited quantity is intuitively compelling evidence that a theory is, loosely speaking, on the right track. But exactly what conclusion is warranted by such agreement? I propose a new account of the phenomenon's epistemic significance within the framework of Bayesian epistemology. I contrast my proposal with the standard Bayesian treatment, which lumps the phenomenon under the heading of "evidential diversity".

Until now it has been impossible to read the full story of the relationship between Albert Camus and Jean-Paul Sartre. Their dramatic rupture at the height of the Cold War, like that conflict itself, demanded those caught in its wake to take sides rather than to appreciate its tragic complexity. Now, using newly available sources, Ronald Aronson offers the first book-length account of the twentieth century's most famous friendship and its end. Albert Camus and Jean-Paul Sartre first met in (...) 1943, during the German occupation of France. The two became fast friends. Intellectual as well as political allies, they grew famous overnight after Paris was liberated. As playwrights, novelists, philosophers, journalists, and editors, the two seemed to be everywhere and in command of every medium in post-war France. East-West tensions would put a strain on their friendship, however, as they evolved in opposing directions and began to disagree over philosophy, the responsibilities of intellectuals, and what sorts of political changes were necessary or possible. As Camus, then Sartre adopted the mantle of public spokesperson for his side, a historic showdown seemed inevitable. Sartre embraced violence as a path to change and Camus sharply opposed it, leading to a bitter and very public falling out in 1952. They never spoke again, although they continued to disagree, in code, until Camus's death in 1960. In a remarkably nuanced and balanced account, Aronson chronicles this riveting story while demonstrating how Camus and Sartre developed first in connection with and then against each other, each keeping the other in his sights long after their break. Combining biography and intellectual history, philosophical and political passion, _Camus and Sartre_ will fascinate anyone interested in these great writers or the world-historical issues that tore them apart. (shrink)

In his role as Editor-in-Chief of EPAT, and with characteristic generosity, Michael Peters has invited me to offer an editorial on the occasion of the publication of my latest book, ‘The Philosophy...