After a very brief introduction, Davidson begins with an informed and detailed account of the views of Aristotle and his major commentators, whose writings had enormous influence on the development of the medieval traditions. Davidson's account is supplemented with a critical exposition of the relevant teachings from the Plotiniana Arabica, from al-Kindi, and from a treatise on the soul attributed to Porphyry in the Arabic tradition. Impressive as all this is, it is simply stage setting for Davidson's (...) detailed accounts of the doctrines and arguments of al-Farabi, Avicenna, and Averroes. (shrink)

Articles: Smart, "Quine's Philosophy of science"; Harman, "An Introduction to 'Translation and Meaning', Chapter Two of Word and Object"; Stenius, "Beginning with Ordinary Things"; Chomsky, "Quine's Empirical Assumptions"; Hintikka, "Behavioral Criteria of Radical Translation"; Stroud, "Conventionalism and the Indeterminacy of Translation"; Strawson, "Singular Terms and Predication"; Grice, "Vacuous Names"; Geach, "Quine's Syntactical Insights"; Davidson, "On Saying That"; Follesdal, "Quine on Modality"; Sellars, "Some Problems about Belief"; Kaplan, "Quantifying In"; Berry, "Logic with Platonism"; Jensen, "On the Consistency of a Slight (...) (?) Modification in Quine's New Foundations"; Quine, "Replies"; Publications of W. V. Quine. (shrink)

CONSCIOUSNESS AND THE BRAIN SELF-REGULATION PARADOX The relationship of consciousness to biology has intrigued mankind thoroughout recorded history. However, little progress has been made not only in understanding these issues but also in raising fundamental questions central to the problem. As Davidson and Davidson note in their introduction, William James suggested, almost a century ago in his Principles of Psychology, that the brain was the organ of mind and be havior. James went so far as to suggest that (...) the remainder of the Principles was but a "footnote" to this central thesis. This volume brings together diverse biobehavioral scientists who are addressing the various aspects of the mindlbrainlbodylbehavior issue. Although some of the authors have previously published together in other volumes, by and large the particular combination of authors and topics selected by the editors makes this volume unique and timely. Unlike the Consciousness and Self-Regulation series (Schwartz & Shapiro, 1976, 1978), also published by Plenum, this volume is devoted entirely to a psychobiological approach to consciousness. Although readers will differ in their interest in specific chapters, the well-rounded investigator who is concerned with the psychobiology of consciousness will want to become intimately acquainted with all the views presented in this volume. As noted by the individual contributors, the topic of this volume stimulates fundamental questions which, on the surface, may appear trivial, yet, on further reflection, turn out to have deep significance. (shrink)

This book examines how Western behavioral science--which has generally focused on negative aspects of human nature--holds up to cross-cultural scrutiny, in particular the Tibetan Buddhist celebration of the human potential for altruism, empathy, and compassion. Resulting from a meeting between the Dalai Lama, leading Western scholars, and a group of Tibetan monks, this volume includes excerpts from these extraordinary dialogues as well as engaging essays exploring points of difference and overlap between the two perspectives.

Individual differences in emotional reactivity or affective style can be decomposed into more elementary constituents. Several separable of affective style are identified such as the threshold for reactivity, peak amplitude of response, the rise time to peak and the recovery time. latter two characteristics constitute components of affective chronometry The circuitry that underlies two fundamental forms of motivation and and withdrawal-related processes-is described. Data on differences in functional activity in certain components of these are next reviewed, with an emphasis on (...) the nomological network of surrounding individual differences in asymmetric prefrontal The relevance of such differences for understanding the nature affective dysfunction in affective disorders is then considered. The ends by considering what the prefrontal cortex “does” in certain of affective style and highlights some of the important questions for future research. (shrink)

The editors of this unique volume have brought together 24 leading emotion theorists with a wide variety of perspectives to address 12 fundamental questions about the subject.

Emotion is normally regulated in the human brain by a complex circuit consisting of the orbital frontal cortex, amygdala, anterior cingulate cortex, and several other interconnected regions. There are both genetic and environmental contributions to the structure and function of this circuitry. We posit that impulsive aggression and violence arise as a consequence of faulty emotion regulation. Indeed, the prefrontal cortex receives a major serotonergic projection, which is dysfunctional in individuals who show impulsive violence. Individuals vulnerable to faulty regulation of (...) negative emotion are at risk for violence and aggression. Research on the neural circuitry of emotion regulation suggests new avenues of intervention for such at-risk populations. (shrink)

This volume is a comprehensive roadmap to the burgeoning area of affective sciences, which now spans several disciplines. The Handbook brings together, for the first time, the various strands of inquiry and latest research in the scientific study of the relationship between the mechanisms of the brain and the psychology of mind. In recent years, scientists have made considerable advances in understanding how brain processes shape emotions and are changed by human emotion. Drawing on a wide range of neuroimaging techniques, (...) neuropsychological assessment, and clinical research, scientists are beginning to understand the biological mechanisms for emotions. As a result, researchers are gaining insight into such compelling questions as: How do people experience life emotionally? Why do people respond so differently to the same experiences? What can the face tell us about internal states? How does emotion in significant social relationships influence health? Are there basic emotions common to all humans? This volume brings together the most eminent scholars in the field to present, in sixty original chapters, the latest research and theories in the field. The book is divided into ten sections: Neuroscience; Autonomic Psychophysiology; Genetics and Development; Expression; Components of Emotion; Personality; Emotion and Social Processes; Adaptation, Culture, and Evolution; Emotion and Psychopathology; and Emotion and Health. This major new volume will be an invaluable resource for researchers that will define affective sciences for the next decade. (shrink)

This article presents a model of the structure of emotion developed primarily from a consideration of neuropsychological evidence and behavioural data which have bearing on neuropsychological theories. Valence is first considered and highlighted as a defining characteristic of emotion. Next, the use of facial behaviour and autonomic nervous system patterns as defining characteristics of discrete emotions is questioned on empirical and conceptual grounds. The regulation of emotion is considered and proposed to affect the very structure of emotion itself. If there (...) is an invariant pattern of biological activity across different instantiations of the same emotion, it is likely to be found in higher-order associative networks of central nervous system activity, the very same networks that subserve goal-directed behaviour and other cognitive functions. Drawing upon evolutionary considerations, it is argued that what is basic about emotion are the dimensions of approach and withdrawal. The nature of the linkage between such action tendencies and emotion is discussed. (shrink)

Dr. Davidson is a William James and Vilas Research Professor of Psychology and Psychiatry at the University of Wisconsin-Madison. He received his Ph.D. from Harvard University in Psychology and has been at Wisconsin since 1984.

Attention to internal body sensations is practiced in most meditation traditions. Many traditions state that this practice results in increased awareness of internal body sensations, but scientific studies evaluating this claim are lacking. We predicted that experienced meditators would display performance superior to that of nonmeditators on heartbeat detection, a standard noninvasive measure of resting interoceptive awareness. We compared two groups of meditators (Tibetan Buddhist and Kundalini) to an age- and body mass index-matched group of nonmeditators. Contrary to our prediction, (...) we found no evidence that meditators were superior to nonmeditators in the heartbeat detection task, across several sessions and respiratory modulation conditions. Compared to nonmeditators, however, meditators consistently rated their interoceptive performance as superior and the difficulty of the task as easier. These results provide evidence against the notion that practicing attention to internal body sensations, a core feature of meditation, enhances the ability to sense the heartbeat at rest. (shrink)

Western science has generally addressed human nature in its most negative aspects-the human potential for violence, the genetic and biochemical bases for selfishness, depression, and anxiety. In contrast, Tibetan Buddhism has long celebrated the human potential for compassion, and is dedicated to studying the scope, expression, and training of compassionate feeling and action. Science and Compassion examines how the views of Western behavioral science hold up to scrutiny by Tibetan Buddhists. Resulting from a meeting between the Dalai Lama, leading Western (...) scholars, and a group of Tibetan monks, the volume includes essays exploring points of difference and overlap between the two perspectives. Opening with the story of the extraordinary meeting in Dharamsala India, the book then takes the reader through the best of what Western behavioral scientific tradition has to say about altruism, ethics, empathy, and compassion-looking at how different elements of this science are challenged by cross-cultural examination. In a series of essays, the participating scientists and scholars ask not only how Tibetan and Western understandings of emotion differ, but how Western behavioral science might broaden and enrich its understanding of human nature to do justice to the study of human emotions. An essay by the Dalai Lama reveals his views on human nature, offering a useful exposition of the Buddhist point of view. Also included are direct excerpts from the dialogues themselves, which are filled with intellectual intensity, moments of convergence, and frequent humor. This extraordinary cross-cultural dialogue about our most essential natures will appeal to scientists, scholars, and the educated lay reader. (shrink)

The articles in this special section attest to the vibrancy of research on affective dynamics. In this article, I raise a number of fundamental questions about affective chronometry that remain unanswered and largely unasked. These questions are: What is the relation between the time course of positive and negative affect?; What is the relation among measures that operate at different time scales?; What underlies the duration of subjectively experienced emotion?; Which parameters of affective chronometry matter most for psychological and physical (...) health and well-being?; and Which interventions might specifically relieve suffering and promote well-being via impact on affective chronometry? The article concludes with some recommendations for future research in this area. (shrink)

The information processing capacity of the human mind is limited, as is evidenced by the so-called ‘‘attentional-blink’’ deficit: When two targets (T1 and T2) embedded in a rapid stream of events are presented in close temporal proximity, the second target is often not seen. This deficit is believed to result from competition between the two targets for limited attentional resources. Here we show, using performance in an attentional-blink task and scalp-recorded brain potentials, that meditation, or mental training, affects the distribution (...) of limited brain resources. Three months of intensive mental training resulted in a smaller attentional blink and reduced brain-resource allocation to the first target, as reflected by a smaller T1-elicited P3b, a brain-potential index of resource allocation. Furthermore, those individuals that showed the largest decrease in brain-resource allocation to T1 generally showed the greatest reduction in attentional-blink size. These observations provide novel support for the view that the ability to accurately identify T2 depends upon the efficient deployment of resources to T1. The results also demonstrate that mental training can result in increased control over the distribution of limited brain resources. Our study supports the idea that plasticity in brain and mental function exists throughout life and illustrates the usefulness of systematic mental training in the study of the human mind. (shrink)

For most of this past century, scholarship on the topics of personal- ity and emotion has emerged from the humanities and social sciences. In the past decade, a remarkable change has occurred in the influence of neuro- science on the conceptualization and study of these phenomena. This article ar- gues that the categories that have emerged from psychiatric nosology and descriptive personality theory may be inadequate, and that new categories and dimensions derived from neuroscience research may produce a more tractable (...) parsing of this complex domain. The article concludes by noting that the dis- covery of these biological differences among individuals does not imply that the origins of these differences lie in heritable influences. Experiential shaping of the brain circuitry underlying emotion is powerful. The neural architecture provides the final common pathway through which culture, social factors, and genetics all operate together. (shrink)

Background: The broad autism phenotype includes subclinical autistic characteristics found to have a higher prevalence in unaffected family members of individuals with autism. These characteristics primarily affect the social aspects of language, communication, and human interaction. The current research focuses on possible neurobehavioral characteristics associated with the broad autism phenotype. Methods: We used a face-processing task associated with atypical patterns of gaze fixation and brain function in autism while collecting brain functional magnetic resonance imaging (fMRI) and eye tracking in unaffected (...) siblings of individuals with autism. Results: We found robust differences in gaze fixation and brain function in response to images of human faces in unaffected siblings compared with typically developing control individuals. The siblings’ gaze fixations and brain activation patterns during the face processing task were similar to that of the autism group and showed decreased gaze fixation along with diminished fusiform activation compared with the control group. Furthermore, amygdala volume in the siblings was similar to the autism group and was significantly reduced compared with the control group. Conclusions: Together, these findings provide compelling evidence for differences in social/emotional processing and underlying neural circuitry in siblings of individuals with autism, supporting the notion of unique endophenotypes associated with the broad autism phenotype. (shrink)

Jonathan A. Oler,1,4 Andrew S. Fox,2,5 Steven E. Shelton,1,4 Bradley T. Christian, 1,3,5 Dhanabalan Murali,3,5 Terrence R. Oakes,5 Richard J. Davidson,1,2,4,5 and Ned H. Kalin1,2,4,5..

Anxious temperament (AT) in human and non-human primates is a trait-like phenotype evident early in life that is characterized by increased behavioural and physiological reactivity to mildly threatening stimuli1–4. Studies in children demonstrate that AT is an important risk factor for the later development of anxiety disorders, depression and comorbid substance abuse5. Despite its importance as an early predictor of psychopathology, little is known about the factors that predispose vulnerable children to develop AT and the brain systems that underlie its (...) expression. To characterize the neural circuitry associated with AT and the extent to which the function of this circuit is heritable, we studied a large sample of rhesus monkeys phenotyped for AT. Using 238 young monkeys from a multigenerational single-family pedigree, we simultaneously assessed brain metabolic activity and AT while monkeys were exposed to the relevant ethological condition that elicits the phenotype. High-resolution 18F-labelled deoxyglucose positron-emission tomography (FDG–PET) was selected as the imaging modality because it provides semi-quantitative indices of absolute glucose metabolic rate, allows for simultaneous measurement of behaviour and brain activity, and has a time course suited for assessing temperament-associated sustained brain responses. Here we demonstrate that the central nucleus region of the amygdala and the anterior hippocampus are key components of the neural circuit predictive of AT. We also show significant heritability of the AT phenotype by using quantitative genetic analysis. Additionally, using voxelwise analyses, we reveal significant heritability of metabolic activity in AT-associated hippocampal regions. However, activity in the amygdala region predictive of AT is not significantly heritable. Furthermore, the heritabilities of the hippocampal and amygdala regions significantly differ from each other. Even though these structures are closely linked, the results suggest differential influences of genes and environment on how these brain regions mediate AT and the ongoing risk of developing anxiety and depression. Anxiety disorders are among the most common forms of psychopathology6, and frequently begin during childhood and adolescence. Although all children experience acute anxiety, children with AT display extreme behavioural and physiological reactivity to novel stimuli, and in the presence of strangers inhibit their locomotor activity and vocalizations3.. (shrink)

The discovery and engineering of novel fluorescent proteins (FPs) from diverse organisms is yielding fluorophores with exceptional characteristics for live‐cell imaging. In particular, the development of FPs for fluorescence (or Förster) resonance energy transfer (FRET) microscopy is providing important tools for monitoring dynamic protein interactions inside living cells. The increased interest in FRET microscopy has driven the development of many different methods to measure FRET. However, the interpretation of FRET measurements is complicated by several factors including the high fluorescence background, (...) the potential for photoconversion artifacts and the relatively low dynamic range afforded by this technique. Here, we describe the advantages and disadvantages of four methods commonly used in FRET microscopy. We then discuss the selection of FPs for the different FRET methods, identifying the most useful FP candidates for FRET microscopy. The recent success in expanding the FP color palette offers the opportunity to explore new FRET pairs. (shrink)

Background: Hypothalamic-pituitary-adrenal (HPA) system activation is adaptive in response to stress, and HPA dysregulation occurs in stress-related psychopathology. It is important to understand the mechanisms that modulate HPA output, yet few studies have addressed the neural circuitry associated with HPA regulation in primates and humans. Using high-resolution F-18-fluorodeoxyglucose positron emission tomography (FDG-PET) in rhesus monkeys, we assessed the relation between individual differences in brain activity and HPA function across multiple contexts that varied in stressfulness.

ai Diminished gaze fixation is one of the core features of autism and has been proposed to be associated with abnormalities in the neural circuitry of affect. We tested this hypothesis in two separate studies using eye tracking while measuring functional brain activity during facial discrimination tasks in individuals with autism and in typically developing individuals. Activation in the fusiform gyrus and amygdala was strongly and positively correlated with the time spent fixating the eyes in the autistic group in both (...) studies, suggesting that diminished gaze fixation may account for the fusiform hypoactivation to faces commonly reported in autism. In addition, variation in eye fixation within autistic individuals was strongly and positively associated with amygdala activation across both studies, suggesting a heightened emotional response associated with gaze fixation in autism. (shrink)