Longlisted for the PEN/E.O. Wilson Literary Science Writing Award A leading neuroscientist offers a history of the evolution of the brain from unicellular organisms to the complexity of animals and human beings today Renowned neuroscientist Joseph LeDoux digs into the natural history of life on earth to provide a new perspective on the similarities between us and our ancestors in deep time. This page-turning survey of the whole of terrestrial evolution sheds new light on how nervous systems evolved (...) in animals, how the brain developed, and what it means to be human. In The Deep History of Ourselves, LeDoux argues that the key to understanding human behavior lies in viewing evolution through the prism of the first living organisms. By tracking the chain of the evolutionary timeline he shows how even the earliest single-cell organisms had to solve the same problems we and our cells have to solve each day. Along the way, LeDoux explores our place in nature, how the evolution of nervous systems enhanced the ability of organisms to survive and thrive, and how the emergence of what we humans understand as consciousness made our greatest and most horrendous achievements as a species possible. (shrink)

Emotional states of consciousness, or what are typically called emotional feelings, are traditionally viewed as being innately programed in subcortical areas of the brain, and are often treated as different from cognitive states of consciousness, such as those related to the perception of external stimuli. We argue that conscious experiences, regardless of their content, arise from one system in the brain. On this view, what differs in emotional and non-emotional states is the kind of inputs that are processed by a (...) general cortical network of cognition, a network essential for conscious experiences. Although subcortical circuits are not directly responsible for conscious feelings, they provide non-conscious inputs that coalesce with other kinds of neural signals in the cognitive assembly of conscious emotional experiences. In building the case for this proposal, we defend a modified version of what is known as the higher-order theory of consciousness. (shrink)

The essence of who we are depends on our brains. They enable us to think, to feel joy and sorrow, communicate through speech, reflect on the moments of our lives, and to anticipate, plan for, and worry about our imagined futures. Although some of our abilities are comparatively new, key features of our behavior have deep roots that can be traced to the beginning of life. By following the story of behavior, step-by-step, over its roughly four-billion-year trajectory, we come to (...) understand both how similar we are to all organisms that have ever lived, and how different we are from even our closest animal relatives. We care about our differences because they are ours. But differences do not make us superior; they simply make us different. (shrink)

Critics have often misunderstood the higher-order theory (HOT) of consciousness. Here we clarify its position on several issues, and distinguish it from other views such as the global The higher-order theory (HOT) of consciousness has often been misunderstood by critics. Here we clarify its position on several issues, and distinguish it from other views such as the global workspace theory (GWT) and early sensory models (e.g. first-order local recurrency theories). For example, HOT has been criticized for over-intellectualizing consciousness. We show (...) that while higher-order states are cognitively assembled, the requirements are actually considerably less than often presumed. In this sense HOT may be viewed as an intermediate position between GWT and early sensory views. Also, we clarify that most proponents of HOT do not stipulate consciousness as equivalent to metacognition or confidence. Further, compared to other existing theories, HOT can arguably account better for complex everyday experiences, such as of emotions and episodic memories. This makes HOT particularly useful as a framework for conceptualizing pathological mental states. (shrink)

'Fear' is used scientifically in two ways, which causes confusion: it refers to conscious feelings and to behavioral and physiological responses. Restricting the use of 'fear' to denote feelings and using 'threat-induced defensive reactions' for the responses would help avoid misunderstandings about the brain mechanisms involved.

The target articles by Dixon (2012), Scarantino (2012), and Mulligan and Scherer (2012) explore the nature of emotion from philosophical and psychological perspectives. I discuss how neuroscience can also contribute to debates about the nature of emotion. I focus on the aspects of emotion that usually fall within the topic of basic emotions, but conclude that we may need to revise how we conceive and study these kinds of emotional states in relation to the brain.

Consciousness is currently a thriving area of research in psychology and neuroscience. While this is often attributed to events that took place in the early 1990s, consciousness studies today are a continuation of research that started in the late 19th century and that continued throughout the 20th century. From the beginning, the effort built on studies of animals to reveal basic principles of brain organization and function, and of human patients to gain clues about consciousness itself. Particularly important and our (...) focus here is research in the 1950s, 1960s, and 1970s involving three groups of patients—amnesia, split brain, and blindsight. Across all three groups, a similar pattern of results was found—the patients could respond appropriately to stimuli that they denied seeing (or in the case of amnesiacs, having seen before). These studies paved the way for the current wave of research on consciousness. The field is, in fact, still grappling with the implications of the findings showing that the ability to consciously know and report the identity of a visual stimulus can be dissociated in the brain from the mechanisms that underlie the ability to behave in a meaningful way to the same stimulus. (shrink)

While it is common to think that neuroscientists are proponents of basic emotions theory, this is not necessarily the case. My ideas, for example are more aligned with cognitive than basic emotions theories.

Birch et. al. see their model as incompatible with higher-order-thought (HOT) theories of consciousness, on which a state is conscious if one is in some suitable way aware of that state. They see higher-order (HO) awareness as an “extra ingredient”. But since Birch et al go on to say that “[t]his is not the place for a detailed discussion of HOT theories,” they don’t address why they take HO awareness to be an extra ingredient or why HOT theorists are convinced (...) that it’s needed. In this commentary we argue that higher-order theories are a crucial for understanding consciousness. (shrink)

The commentaries by Ren, de Carvalho, Gabriel, Reber and Baluška raise interesting and timely questions about the views I expressed in The Deep History of Ourselves. I begin my response with an Overview of my perspective, and how it has changed in the three years since publication. This is important since some of the commentators’ concerns may be assuaged by some of these points. Other specific issues raised by each commentator are addressed separately. I greatly appreciate the time and effort (...) they put into their comments on The Deep History of Ourselves. (shrink)

This work constitutes the proceedings of a New York Academy of Sciences conference held in September 2002. It seeks to take stock of understanding of the self and its relation to the brain, and consider future directions for scientific research in a multidisciplinary context.

Conscious experiences involve subjective qualities, such as colours, sounds, smells and emotions. In this Perspective, we argue that these subjective qualities can be understood in terms of their similarity to other experiences. This account highlights the role of memory in conscious experience, even for simple percepts. How an experience feels depends on implicit memory of the relationships between different perceptual representations within the brain. With more complex experiences such as emotions, explicit memories are also recruited. We draw inspiration from work (...) in machine learning as well as the cognitive neuroscience of learning and decision making to make our case and discuss how the account could be tested in future experiments. The resulting findings might help to reveal the functions of subjective experience and inform current theoretical debates on consciousness. (shrink)

The “happiness agenda” is a worldwide movement that claims that happiness is the highest good, happiness can be measured, and public policy should promote happiness. Against Happiness is a thorough and powerful critique of this program, revealing the flaws of its concept of happiness and advocating a renewed focus on equality and justice. Written by an interdisciplinary team of authors, this book provides both theoretical and empirical analysis of the limitations of the happiness agenda. The authors emphasize that this movement (...) draws on a parochial, Western-centric philosophical basis and demographic sample. They show that happiness defined as subjective satisfaction or a surplus of positive emotions bears little resemblance to the richer and more nuanced concepts of the good life found in many world traditions. Cross-cultural philosophy, comparative theology, and social and cultural psychology all teach that cultures and subcultures vary in how much value they place on life satisfaction or feeling happy. Furthermore, the ideas promoted by the happiness agenda can compete with rights, justice, sustainability, and equality—and even conceal racial and gender injustice. Against Happiness argues that a better way forward requires integration of cross-cultural philosophical, ethical, and political thought with critical social science. Ultimately, the authors contend, happiness should be a secondary goal—worth pursuing only if it is contingent on the demands of justice. (shrink)

In the interesting and thought-provoking article Grazziano and colleagues argue for their Attention Schema Theory (AST) of consciousness. They present AST as a unification of Global Workspace Theory (GWT), Illusionism, and the Higher-Order Thought (HOT) theory. We argue it is a mistake to equate 'subjective experience,' ad related terms, with dualism. They simply denote experience. Also, as presented, AST does not accurately capture the essence of HOT for two reasons. HOT is presented as a version of strong illusionism, which it (...) isn't, and HOT requires that one be aware of one's mental life, and postulates that his consists in a re-representation of what is occurring at at the lower-order levels. However, the authors deny that AST involves re-representing visual stimuli. We close by proposing an alternative unification: GWT and AST provide crucial accounts of how lower-order states are assembled and maintained, but higher-order theory provides the account of subjective experience. (shrink)

Pavlovian cues predict the occurrence of motivationally salient outcomes, thus serving as an important trigger of approach and avoidance behavior. The amygdala is a key substrate of Pavlovian conditioning, and the nature of its contribution varies by the motivational valence of unconditioned stimuli. The literature on aversive Pavlovian learning supports a serial-processing model of amygdalar function, while appetitive studies suggest that Pavlovian associations are processed through parallel circuits in the amygdala. It is proposed that serial and parallel forms of information (...) processing can be attributed to differential recruitment of amygdalar nuclei, with emphasis placed on the lateral amygdala. (shrink)

Review of Joseph LeDoux: Das Netz der Persönlichkeit. Wie unser Selbst entsteht. Walter Verlag, Düsseldorf 2003. 510 Seiten (mit Abbildungen), 39,90 Euro. - Der eine Mensch ist mißtrauisch, der nächste leichtgläubig, diese ist warmherzig, jene kaltschnäuzig. Viele haben Charakter, manche sogar Persönlichkeit. Wie kommt es dazu? In seinem neuen Buch untersucht der Neurowissenschaftler Joseph LeDoux wie unser Selbst entsteht. In dem sehr lesbaren und angenehm übersetzten Werk wird anschaulich und detailliert berichtet, wie sich in unserem Gehirn (...) die Charakteristika eines Individuums ausbilden. (shrink)

We are sympathic with LeDoux’s primary goal here ─ to get a solid scientific grip on what has been dubbed one of the most elusive, important questions in scientific discourse, to identify the underlying biomolecular processes that give rise to consciousness. However, we have issues with the way he goes about it and have tried to present them in a constructive manner. Our commentary is built around our theory of the origins of minds, dubbed the Cellular Basis of Consciousness (...) (CBC), and the empirical research that supports it. The CBC is based on the proposition that life and sentience are co-terminous, that life without subjectivity, feeling, without valenced perception, without the capacity to learn and lay down memories would have been an evolutionary dead-end. It could not have survived in the hostile, chaotic world in flux that dominated our planet four billion years ago. The biological sciences operate on the principle that all species, extant and extinct, evolved from the first prokaryotes. The CBC theory is founded on the principle that all expressions of emotion, perception, and cognition did as well. (shrink)

Behavioral scientists routinely publish broad claims about human psychology and behavior in the world's top journals based on samples drawn entirely from Western, Educated, Industrialized, Rich, and Democratic (WEIRD) societies. Researchers – often implicitly – assume that either there is little variation across human populations, or that these “standard subjects” are as representative of the species as any other population. Are these assumptions justified? Here, our review of the comparative database from across the behavioral sciences suggests both that there is (...) substantial variability in experimental results across populations and that WEIRD subjects are particularly unusual compared with the rest of the species – frequent outliers. The domains reviewed include visual perception, fairness, cooperation, spatial reasoning, categorization and inferential induction, moral reasoning, reasoning styles, self-concepts and related motivations, and the heritability of IQ. The findings suggest that members of WEIRD societies, including young children, are among the least representative populations one could find for generalizing about humans. Many of these findings involve domains that are associated with fundamental aspects of psychology, motivation, and behavior – hence, there are no obviousa priorigrounds for claiming that a particular behavioral phenomenon is universal based on sampling from a single subpopulation. Overall, these empirical patterns suggests that we need to be less cavalier in addressing questions ofhumannature on the basis of data drawn from this particularly thin, and rather unusual, slice of humanity. We close by proposing ways to structurally re-organize the behavioral sciences to best tackle these challenges. (shrink)

L’inceste, comme transgression en acte, et l’incestuel, comme séduction narcissique et aliénante, constituent des figures d’une causalité que Spinoza et Freud, dans des perspectives différentes, ont explorée. Appuyée sur les grands principes qui fondent leurs démarches respectives, la confrontation de leurs analyses du procès d’individuation, de la filiation et de la transgression conduit à un éclairage réciproque des deux doctrines : apparaissent alors nettement certains de leurs points de convergence théorique comme leurs dissemblances. Elle permet aussi la reconstitution théorique de (...) la genèse et de la nature de l’inceste dans ses trois principales formes, en tant qu’objet d’interdit social, inceste psychique et inceste en acte. Loin d’être l’effet de désirs sexuels conduisant à la transgression de la loi, l’inceste résulte de son absence, et de la persistance de liens fusionnels qui manifestent à la fois les difficultés et l’immaturité des individus qu’ils unissent. (shrink)

L’inceste, comme transgression en acte, et l’incestuel, comme séduction narcissique et aliénante, constituent des figures d’une causalité que Spinoza et Freud, dans des perspectives différentes, ont explorée. Appuyée sur les grands principes qui fondent leurs démarches respectives, la confrontation de leurs analyses du procès d’individuation, de la filiation et de la transgression conduit à un éclairage réciproque des deux doctrines : apparaissent alors nettement certains de leurs points de convergence théorique comme leurs dissemblances. Elle permet aussi la reconstitution théorique de (...) la genèse et de la nature de l’inceste dans ses trois principales formes, en tant qu’objet d’interdit social, inceste psychique et inceste en acte. Loin d’être l’effet de désirs sexuels conduisant à la transgression de la loi, l’inceste résulte de son absence, et de la persistance de liens fusionnels qui manifestent à la fois les difficultés et l’immaturité des individus qu’ils unissent. (shrink)

Loin de nier l’élection des Hébreux, Spinoza la naturalise et l’universalise, au moins à titre de virtualité, la vocation n’en étant qu’une spécification. Son analyse permet surtout de rendre compte, d’un point de vue mnémo-affectif, symbolique et stratégique, de la nature du pouvoir qu’un chef exerce sur son peuple, et de l’articulation de leurs ingenia respectifs. Enfin, elle éclaire le caractère exceptionnel de la destinée singulière de Moïse comme figure symbolique du bon politique, tout en permettant à Spinoza de penser, (...) à travers l’exemple hébreu, ce qu’est une destinée collective. (shrink)

How can we think about evil if we exclude free will? Spinoza and Freud define freedom in terms of the understanding of mechanisms arising in a person by necessity. Spinoza's letters to Blijenbergh, analyzed here through a Freudian lens, allow us to formulate a response to this problem.

"First published by Oxford University Press, 1916."--Title page verso.

Does all conscious experience essentially involve self-consciousness? In his Subjectivity and Selfhood: Investigating the First-Person, Dan Zahavi answers “yes”. I criticize three core arguments offered in support of this answer—a well-known regress argument, what I call the “interview argument,” and a phenomenological argument. Drawing on Sartre, I introduce a phenomenological contrast between plain experience and self-conscious experience. The contrast challenges the thesis that conscious experience entails self-consciousness.

Since the very beginning, Confucianism has been troubled by a serious gap between its political ideals and the reality of societal circumstances. Contemporary Confucians must develop a viable method of governance that can retain the spirit of the Confucian ideal while tackling problems arising from nonideal modern situations. The best way to meet this challenge, Joseph Chan argues, is to adopt liberal democratic institutions that are shaped by the Confucian conception of the good rather than the liberal conception of (...) the right.Confucian Perfectionism examines and reconstructs both Confucian political thought and liberal democratic institutions, blending them to form a new Confucian political philosophy. Chan decouples liberal democratic institutions from their popular liberal philosophical foundations in fundamental moral rights, such as popular sovereignty, political equality, and individual sovereignty. Instead, he grounds them on Confucian principles and redefines their roles and functions, thus mixing Confucianism with liberal democratic institutions in a way that strengthens both. Then he explores the implications of this new yet traditional political philosophy for fundamental issues in modern politics, including authority, democracy, human rights, civil liberties, and social justice.Confucian Perfectionism critically reconfigures the Confucian political philosophy of the classical period for the contemporary era. (shrink)

Joseph J. Fins calls for a reconsideration of severe brain injury treatment, including discussion of public policy and physician advocacy.

José Benardete developed a famous paradox involving a beginningless set of items each member of which satisfies some predicate just in case no earlier member satisfies it. The Grim Reaper version of this paradox has recently been employed in favor of various finitist metaphysical theses, ranging from temporal finitism to causal finitism to the discrete nature of time. Here, I examine a new challenge to these finitist arguments—namely, the challenge of implying that the future cannot be endless. In particular, I (...) develop future-oriented Benardete paradoxes and examine their epistemic symmetry with past-oriented paradoxes. (shrink)

Rigid designators for concrete objects and for properties -- On the coherence of the distinction -- On whether the distinction assigns to rigidity the right role -- A uniform treatment of property designators as singular terms -- Rigid appliers -- Rigidity - associated arguments in support of theoretical identity statements: on their significance and the cost of its philosophical resources -- The skeptical argument impugning psychophysical identity statements: on its significance and the cost of its philosophical resources -- The skeptical (...) argument further examined: on resources, allegedly overlooked, for confirming psychological identities. (shrink)

Benardete paradoxes involve a beginningless set each member of which satisfies some predicate just in case no earlier member satisfies it. Such paradoxes have been wielded on behalf of arguments for the impossibility of an infinite past. These arguments often deploy patchwork principles in support of their key linking premise. Here I argue that patchwork principles fail to justify this key premise.

The paper argues that normative reasons are of two fundamental kinds, practical which are value related, and adaptive, which are not related to any value, but indicate how our beliefs and emotions should adjust to fit how things are in the world. The distinction is applied and defended, in part through an additional distinction between standard and non-standard reasons (for actions, intentions, emotions or belief).

Behavioral scientists routinely publish broad claims about human psychology and behavior in the world's top journals based on samples drawn entirely from Western, Educated, Industrialized, Rich, and Democratic (WEIRD) societies. Researchers – often implicitly – assume that either there is little variation across human populations, or that these “standard subjects” are as representative of the species as any other population. Are these assumptions justified? Here, our review of the comparative database from across the behavioral sciences suggests both that there is (...) substantial variability in experimental results across populations and that WEIRD subjects are particularly unusual compared with the rest of the species – frequent outliers. The domains reviewed include visual perception, fairness, cooperation, spatial reasoning, categorization and inferential induction, moral reasoning, reasoning styles, self-concepts and related motivations, and the heritability of IQ. The findings suggest that members of WEIRD societies, including young children, are among the least representative populations one could find for generalizing about humans. Many of these findings involve domains that are associated with fundamental aspects of psychology, motivation, and behavior – hence, there are no obviousa priorigrounds for claiming that a particular behavioral phenomenon is universal based on sampling from a single subpopulation. Overall, these empirical patterns suggests that we need to be less cavalier in addressing questions ofhumannature on the basis of data drawn from this particularly thin, and rather unusual, slice of humanity. We close by proposing ways to structurally re-organize the behavioral sciences to best tackle these challenges. (shrink)