Neural complexity and brain entropy have gained greater interest in recent years. The dynamics of neural signals and their relations with information processing continue to be investigated through different measures in a variety of noteworthy studies. The BEN of spontaneous neural activity decreases during states of reduced consciousness. This evidence has been showed in primary consciousness states, such as psychedelic states, under the name of “the entropic brain hypothesis.” In this manuscript we propose an extension of this hypothesis to physiological (...) and pathological aging. We review this particular facet of the complexity of the brain, mentioning studies that have investigated BEN in primary consciousness states, and extending this view to the field of neuroaging with a focus on resting-state functional Magnetic Resonance Imaging. We first introduce historic and conceptual ideas about entropy and neural complexity, treating the mindbrain as a complex nonlinear dynamic adaptive system, in light of the free energy principle. Then, we review the studies in this field, analyzing the idea that the aim of the neurocognitive system is to maintain a dynamic state of balance between order and chaos, both in terms of dynamics of neural signals and functional connectivity. In our exploration we will review studies both on acute psychedelic states and more chronic psychotic states and traits, such as those in schizophrenia, in order to show the increase of entropy in those states. Then we extend our exploration to physiological and pathological aging, where BEN is reduced. Finally, we propose an interpretation of these results, defining a general trend of BEN in primary states and cognitive aging. (shrink)

This book offers both theoretical overviews and practical approaches for educators, academics, education students and parents who are interested in transforming schools. It encourages reinvigorating approaches to learning and teaching that can easily be integrated into both public and private K-12 school classrooms, with many ideas also applicable to higher education. It supports an educational system based on the beliefs that heart and spirit are intertwined with mind and intellect, and that inner peace, wisdom, compassion, and conscience can be developed (...) together with academic content and skills. (shrink)

Two experiments investigated the mechanism by which listeners adjust their interpretation of accented speech that is similar to a regional dialect of American English. Only a subset of the vowels of English (the front vowels) were shifted during adaptation, which consisted of listening to a 20‐min segment of the “Wizard of Oz.” Compared to a baseline (unadapted) condition, listeners showed significant adaptation to the accented speech, as indexed by increased word judgments on a lexical decision task. Adaptation also generalized to (...) test words that had not been presented in the accented passage but that contained the shifted vowels. A control experiment showed that the adaptation effect was specific to the direction of the shift in the vowel space and not to a general relaxation of the criterion for what constitutes a good exemplar of the accented vowel category. Taken together, these results provide evidence for a context‐specific vowel adaptation mechanism that enables a listener to adjust to the dialect of a particular talker. (shrink)

Previous meta-analyses support a female advantage in decoding non-verbal emotion (Hall, 1978, 1984), yet the mechanisms underlying this advantage are not understood. The present study examined whether the female advantage is related to greater female attention to the eyes. Eye-tracking techniques were used to measure attention to the eyes in 19 males and 20 females during a facial expression recognition task. Women were faster and more accurate in their expression recognition compared with men, and women looked more at the eyes (...) than men. Positive relationships were observed between dwell time and number of fixations to the eyes and both accuracy of facial expression recognition and speed of facial expression recognition. These results support the hypothesis that the female advantage in facial expression recognition is related to greater female attention to the eyes. (shrink)

Tools do not just expand our capabilities. They change what we can do, and in doing so, they change who we are. Serena is Serena because of what she can do with a tennis racket. Tiger is Tiger because of what he can do with a golf club. In changing what we can do, tools also change the very way we perceive the spatial layout of the world. Objects beyond arm's reach appear closer when we wield a tool that can (...) expand out to the object. Catchable objects seem to move faster when we wield a tool that is less effective for catching the object. These examples illustrate how the basic processes of spatial vision are impacted by tool use. (shrink)

Compared to our understanding of positive prediction error signals occurring due to unexpected reward outcomes, less is known about the neural circuitry in humans that drives negative prediction errors during omission of expected rewards. While classical learning theories such as Rescorla–Wagner or temporal difference learning suggest that both types of prediction errors result from a simple subtraction, there has been recent evidence suggesting that different brain regions provide input to dopamine neurons which contributes to specific components of this prediction error (...) computation. Here, we focus on the brain regions responding to negative prediction error signals, which has been well-established in animal studies to involve a distinct pathway through the lateral habenula. We examine the activity of this pathway in humans, using a conditioned inhibition paradigm with high-resolution functional MRI. First, participants learned to associate a sensory stimulus with reward delivery. Then, reward delivery was omitted whenever this stimulus was presented simultaneously with a different sensory stimulus, the conditioned inhibitor. Both reward presentation and the reward-predictive cue activated midbrain dopamine regions, insula and orbitofrontal cortex. While we found significant activity at an uncorrected threshold for the CI in the habenula, consistent with our predictions, it did not survive correction for multiple comparisons and awaits further replication. Additionally, the pallidum and putamen regions of the basal ganglia showed modulations of activity for the inhibitor that did not survive the corrected threshold. (shrink)

Philosophers have hitherto only interpreted the world in various ways; the point is to change it.Karl marx’s distinction between interpreting the world and changing it points by extension to the state of contemporary philosophy and psychiatry. The 1990s resurgence of interdisciplinary work in this area was driven equally by phenomenological scholarship and by initiatives in analytic philosophy. The former reflected the focus in phenomenology on ‘what it is like’ to experience a given mental symptom with the aim of reconstructing the (...) life-worlds of people experiencing mental disorders, while the latter reflected directly or indirectly the influence of J. L. Austin and others from... (shrink)

ABSTRACT Nietzsche's texts invite perplexing questions about the justification and objectivity of his ethical views. According to the interpretation suggested here, Nietzsche does not advance a substantive normative ethics, but proposes, based on his ontological idea of will to power, an instrumentalist theory of value. He is not a realist about value—according to him, nothing is intrinsically valuable. However, things, actions, beliefs, and values can be evaluated with reference to their capacities in serving our fundamental quest for power. The central (...) advantage of this interpretation against competing readings is that it attempts to make sense of how an “objective” evaluation fits together with antirealism or nihilism about value, including how the “ethics” of will to power is to be understood alongside the metaphysical and ethical doctrine of eternal recurrence. (shrink)

This chapter introduces the edited volume, The Oxford Handbook of Philosophy and Psychiatry. Published in 2013, the centenary of Karl Jaspers' General Psychopathology, the chapter draws lessons from the last hundred years for the coming century. No predictions are made. Instead, five 'conditions for flourishing' are set out: 1) Particular Problems - the importance of focussing on well-defined particular problems rather than general theory building, 2) Product- orientation - remaining always responsibly product oriented in the specific sense that both sides (...) put in the work necessary to 'go deep' with each other's fields, 3) Partnership - working in partnerships of one kind or another, 4) Process - constant reflection on process based on peer review but leaving scope for the occasional rogue voice to cut innovatively against the grain, and 5) Q - a condition of a different kind, Q is an empirically derived measure of the balance between in-group cohesion and out-group openness required to support creativity. Illustrations are given of how these five conditions for flourishing have underpinned the rapid expansion of philosophy and psychiatry in the closing decades of the twentieth century, and, correspondingly, are also reflected in the Handbook as a whole. Overviews and commentaries on individual contributions to the Handbook are given in extended editorial introductions to each of its eight sections. (shrink)

Split preorders are preordering relations on a domain whose composition is defined in a particular way by splitting the domain into two disjoint subsets. These relations and the associated composition arise in categorial proof theory in connection with coherence theorems. Here split preorders are represented isomorphically in the category whose arrows are binary relations and whose composition is defined in the usual way. This representation is related to a classical result of representation theory due to Richard Brauer.

The relationship between brain activity and conscious visual experience is central to our understanding of the neural mechanisms underlying perception. Binocular rivalry, where monocular stimuli compete for perceptual dominance, has been previously used to dissociate the constant stimulus from the varying percept. We report here fMRI results from humans experiencing binocular rivalry under a dichoptic stimulation paradigm that consisted of two drifting random dot patterns with different motion coherence. Each pattern had also a different color, which both enhanced rivalry and (...) was used for reporting which of the two patterns was visible at each time. As the perception of the subjects alternated between coherent motion and motion noise, we examined the effect that these alternations had on the strength of the MR signal throughout the brain. Our results demonstrate that motion perception is able to modulate the activity of several of the visual areas which are known to be involved in motion processing. More specifically, in addition to area V5 which showed the strongest modulation, a higher activity during the perception of motion than during the perception of noise was also clearly observed in areas V3A and LOC, and less so in area V3. In previous studies, these areas had been selectively activated by motion stimuli but whether their activity reflects motion perception or not remained unclear; here we show that they are involved in motion perception as well. The present findings therefore suggest a lack of a clear distinction between ?processing? versus ?perceptual? areas in the brain, but rather that the areas involved in the processing of a specific visual attribute are also part of the neuronal network that is collectively responsible for its perceptual representation. (shrink)

This section concerns the question of how best to understand the scientific status of mental health care in general and psychiatry in particular. On the assumption that psychiatry is based, in part at least, on natural science, what is the nature or the general shape of that science? Some of the chapters aim at shedding light on component parts of a scientific world view: causation, explanation, natural kinds, models of medicine, etc. Others concern potentially fruitful scientific approaches to mental health (...) care, drawing on brain imaging results, phenomenology, enactivism and what can be learnt from debate of the status of psychoanalysis. One overall lesson is that twenty-first-century psychiatry needs twenty-first-century philosophy of science. (shrink)

This Section examines several moral dilemmas and epistemological aporias in clinical practice and shows how clinicians can benefit from the introduction of philosophical methods and discourse. The authors develop these issues having in mind emblematic mental disorders and typical clinical situations. One important claim shared by the Authors is that a great effort has been made to ground psychiatry on evidence-based science, and to tie it to our growing understanding of the human brain. This is obviously an exceedingly important project, (...) but it would be a mistake to assume that the central questions of psychiatry can be completely resolved through scientific inquiry. Science offers guidance for clinical practice only in light of our concepts and normative judgments. (shrink)

In the editorial introduction the stage is set for the chapters in the section by a brief discussion of the relationship between the disciplines of philosophy and psychiatry. Then each chapter briefly is summarized or highlighted.

A cross-disciplinary discussion of the basis of interpersonal relating is of interest to philosophers and psychiatrists for several reasons. The development of successful clinical practice may depend, at least partly, on having an accurate understanding of the basic character of unimpaired interpersonal relating because such understanding can shed light on the nature and source of its disturbed forms. How we think about the basis of "mind-minding" competencies influences how we think about the prognosis and possible treatment of dysfunctional interpersonal relating. (...) Another reason is that philosophical frameworks influence the way we think about and evaluate possible psychiatric disorders and philosophical discussions may be of direct practical importance to psychiatry given that different theories suggest different potential ways of devising therapies. (shrink)

It is proved that equations between arrows assumed for cartesian categories are maximal in the sense that extending them with any new equation in the language of free cartesian categories collapses a cartesian category into a preorder. An analogous result holds for categories with binary products, which may lack a terminal object. The proof is based on a coherence result for cartesian categories, which is related to model-theoretic methods of normalization. This maximality of cartesian categories, which is analogous to Post (...) completeness, shows that the usual equivalence between deductions in conjunctive logic induced by βη normalization in natural deduction is chosen optimally. (shrink)

Following on from Section IV on summoning concepts, this section of the Handbook presents theoretically informed descriptions of psychopathologies. The topics of the chapters range from anxiety, depression, and body image disorders, through emotion and affective disorders, to delusion, thought insertion, and the fragmentation of consciousness. These phenomena call, not only for assessment and diagnosis, but also for understanding on the part of both the engaged clinician and the philosophical commentator. They also provide case studies for general philosophical questions about (...) different levels of description and conceptualisation and the relationships between them, and about the contributions to psychological understanding that are made by phenomenology, clinical expert knowledge, and the sciences of the mind. (shrink)

In this introduction to Section VI, the thrust of the component chapters is described. The classification and diagnosis of mental disorders collects a number of philosophical challenges to the field that call for responses from a variety of philosophical resources: hermeneutics, phenomenology, philosophy of mind, narrative theory, philosophy of science, epistemology-to name a few. The authors in this section address the general challenges in the classification of psychopathology, as well as address particular kinds of mental disorders, including autism, dementia, mania, (...) psychotic disorders, and personality disorders. (shrink)

In 1959, Neal Miller made the bold claim that the Stimulus–Response, Behaviorist models of that era were describing the way in which stimuli lead to the entry of contents into consciousness. Today, researchers have begun to investigate the link between external stimuli and involuntary entry, using paradigms such as the reflexive imagery task, the focus of our review. The RIT has revealed that stimuli can elicit insuppressible entry of high-level cognitions. Knowledge of the boundary conditions of the RIT effect illuminates (...) the limitations of involuntary processes and the role of consciousness in the regulation of behavior. We review the boundary conditions of this paradigm as well as its systematic effects. Systematic effects are unlikely to be due to experimental demand. While reviewing each effect, we consider its theoretical implications. In addition, throughout our review, we discuss future directions for the study of insuppressible entry using the RIT. Last, we discuss a theoretical development that stems from the RIT and illuminates how involuntary entry and encapsulation, though at times disadvantageous for the actor, are essential for adaptive action selection during the course of ontogeny. (shrink)