Ronald De Sousa

Somewhere along the course of evolution, and at some time in any one of us on the way from zygote to adult, some forms of detection became beliefs, and some tropisms turned into deliberate desires. Two transitions are involved: from functional responses to intentional ones, and from non-conscious processes to conscious ones that presuppose language and are powered by neocortical re- sources. Unconscious and functional mental processes remain and constitute an 'intuitive' system that collaborates uneasily with the conscious intentionality of the 'analytic' system. Emotions bridge these divides: in particular, specifc feelings affect inference, cognition and metacognition. In what follows, after a brief reminder of the crucial role of emotions to rational thought and action in general, I first look at how fear affects belief. I then narrow my focus to some examples of what I shall refer to as epistemic feelings. These include specialized variants of fear and greed; and feelings of doubt, certainty, knowing and familiarity. I shall also describe some surprising recent findings about the influence of oxytocin on trust and about the direct influence of social conformity on perception and belief

In both biology and psychology, the notion of an individual is indispensable yet puzzling. It has played a variety of roles in diverse contexts, ranging from philosophical problems of personal identity to scientific questions about the immunological mechanisms for telling ‘self’ from ‘non-self.’ There are notorious cases in which the question of individuality is difficult to settle — ant hill, slime mold, or beehive, for instance. Yet the notion of an individual organism, both dependent on and independent of other individuals in specific ways, is crucial to our conception of life itself. It is also crucial to our notion of mentality, and hence to other concepts — moral and social — which must be explicated in terms of individual mentality. (Think, for example, of the importance of the quality and nature of individual consciousness to debates about abortion and euthanasia.)

This is a Big Book from one of Canada's preeminent philosophers. It aims at nothing less than to define what characterizes modernity, and then to tell us what is wrong with it. Like many a Big Book, it is predictably full of interesting things, and equally predictably disappointing, not to say feeble, in some of the central theses for which it argues. But then what more, in philosophy, can we really expect? It's what we tell our students: you don't have to be right, and you don't have to make me agree with you, but you do have to produce interesting arguments and show that you have thought seriously about the issues.

How should we understand the emotional rationality? This first part will explore two models of cognition and analogy strategies, test their intuition about the emotional desire. I distinguish between subjective and objective desire, then presents with a feeling from the "paradigm of drama" export semantics, here our emotional repertoire is acquired all the learned, and our emotions in the form of an object is fixed. It is pretty well in line with the general principles of rationality, especially the lowest reasonable principles. Turned to the second part of this side of reasonable. I will inquire how emotional beliefs, desires, and behaviors contribute to the rationality. I will present a very general biological hypothesis: emotions by controlling highlights the characteristics of perception and reasoning, so that we remove the difficulties due in particular to lead to paralysis; they are being simulated by a simplified perception of information, thus limiting our practice and cognitive choice. How are we to understand emotional or axiological rationality? I pursue analogies with both the cognitive and the strategic models, testing them against intuitions about emotional desires. We distinguish two different classes of desires, the subjective and the objective, and propose that emotions have a semantics that derives from "paradigmatic scenarios", in terms of which our emotional repertoire is learned and the formal objects of our emotions fixed. This fits in well with emerging facts about how our emotional capacities develop, and it can also be squared with the general principles of rationality, particularly minimal rationality. In the second part, I return to the perspective of rationality. I ask how emotions contribute to the rationality of beliefs, desires, and behavior. I proffer a very general biological hypothesis: Emotions spare us the paralysis potentially induced by a particular predicament by controlling the salience of features of perception and reasoning; they temporarily mimic the informational encapsulation of perception and so circumscribe our practical and cognitive options.

How many emotions are there? Should we accept as overwhelming the evidence in favour of regarding emotions as emanating from a relatively small number of modules evolved efficiently to serve us in common life situations? Or can emotions, like colour, be organized in a space of two, three, or more dimensions defining a vast number of discriminable emotions, arranged on a continuum, on the model of the colour cone?There is some evidence that certain emotions are specialized to facilitate certain response sequences, relatively encapsulated in their neurophysiological organization. These are natural facts. But nature, as Katherine Hepburn remarked to Humphrey Bogart, is what we were put in the world to rise above. I shall suggest that we can consider the question not merely from a scientific point of view, but from a political point of view. And so I will try to explain how to reconcile the evidence of emotional modularity - which, as some of the contributions to the present volume illustrate, is not devoid of a certain ambiguity - with a reasonable plea for an attitude of disapproval towards the rigidities of our taxonomy.

Existentialism is compatible with a broadly biological vision of who we are. This thesis is grounded in an analysis of “concrete” or “individual” possibility, which differs from standard conceptions of possibility in that it allows for possibilities to come into being or disappear through time. Concrete possibilities are introduced both in individual life and by major transitions in evolution. In particular, the advent of ultrasociality and of language has enabled human goals to be formulated in partial independence from the vestigial “goal” of biological replication. The existentialist stance is validated by the necessity of choice grounded in emotion, in a way that does not require a commitment to a Kantian Will.