Edouard Machery

In their thought-provoking article, Slaney and Racine put forth several criticisms of the traditional view that concepts are mental representations used in the cognitive processes that underlie human higher cognitive competences . Considerations of a broadly Wittgensteinian nature underlie their criticisms. In this article, I argue that the considerations advanced by Slaney and Racine do not undermine the clear account of the nature of mental states and psychological processes developed in the 1960s and 1970s and endorsed in my book Doing without Concepts . 2012 APA, all rights reserved)

Reverse inference is the most commonly used inferential strategy for bringing images of brain activation to bear on psychological hypotheses, but its inductive validity has recently been questioned. In this article, I show that, when it is analyzed in likelihoodist terms, reverse inference does not suffer from the problems highlighted in the recent literature, and I defend the appropriateness of treating reverse inference in these terms. 1 Introduction2 Reverse Inference3 Reverse Inference Defended3.1 Typical reverse inferences are fallacious3.2 No quick and easy fix3.3 A likelihoodist defense of reverse inference3.4 An example4 Appropriateness of the Likelihoodist Approach4.1 Likelihoodist reverse inference is not applicable4.2 Cognitive neuroscientists are not interested in comparative conclusions4.3 Reverse inference and negative hypotheses4.4 Likelihoodist reverse inference may confuse cognitive neuroscientists4.5 Bayesian reverse inferences should be preferred to likelihoodist reverse inferences5 Conclusion

In this article, we argue that it can be fruitful for philosophers interested in the nature and moral significance of racism to pay more attention to psychology. We do this by showing that psychology provides new arguments against Garcia's views about the nature and moral significance of racism. We contend that some scientific studies of racial cognition undermine Garcia's moral and psychological monism about racism: Garcia disregards (1) the rich affective texture of racism and (2) the diversity of what makes racial ills morally wrong. Key Words: racism • emotions • implicit bias • psychology • racial ills • pluralism.

In this response, I begin by defending and clarifying the notion of concept proposed in Doing without Concepts (Machery 2009) against the alternatives proposed by several commentators. I then discuss whether psychologists and philosophers who theorize about concepts are talking about distinct phenomena or about different aspects of the same phenomenon, as argued in some commentaries. Next, I criticize the idea that the cognitive-scientific findings about induction, categorization, concept combination, and so on, could be explained by positing a single kind of concept, and I insist that many categories (substances, types of events, etc.) are represented by distinct coreferential concepts that belong to very different kinds of concept. This is followed by an assessment of the hybrid theories of concepts offered by commentators, according to which categories, substances, and types of events are represented by hybrid concepts made of several parts. Finally, I defend the proposal that it may be useful to eliminate concept from the theoretical vocabulary of psychology

There has been little serious work to integrate the constructionist approach and the cognitive approach in the domain of race, although many researchers have paid lip service to this project. We believe that any satisfactory account of human beings’ racialist cognition has to integrate both approaches. In this paper, we propose a step toward this integration. We present an evolutionary theory that rests on a distinction between various kinds of groups (kin-based groups, small-scale coalitions and ethnies). Following Gil-White (1999, 2001a, b), we propose that ethnies have raised specific evolutionary challenges that were solved by a specific evolved cognitive system. We suggest that the concept of race is a by-product of that mechanism. To integrate the social constructionists’ and the cognitive theorists’ insights, we rely on the psychology that underlies Boyd and Richerson’s theory of cultural evolution (Boyd and Richerson 1985, forthcoming).

Psychologists of concepts’ traditional assumption that there are many properties common to all concepts has been subject to devastating critiques in psychology and in the philosophy of psychology. However, it is currently unclear what approach to concepts is best suited to replace this traditional assumption. In this article, we compare two competing approaches, the Heterogeneity Hypothesis and the hybrid theories of concepts, and we present an empirical argument that tentatively supports the former over the latter.

It is difficult to overestimate Paul Meehl's influence on judgment and decision-making research. His 'disturbing little book' Clinical versus Statistical Prediction: A Theoretical Analysis and a Review of the Evidence is known as an attack on human judgment and a call for replacing clinicians with actuarial methods. More than 40 years later, fast and frugal heuristics - proposed as models of human judgment - were formalized, tested, and found to be surprisingly accurate, often more so than the actuarial models that Meehl advocated. We ask three questions: Do the findings of the two programs contradict each other? More generally, how are the programs conceptually connected? Is there anything they can learn from each other? After demonstrating that there need not be a contradiction, we show that both programs converge in their concern to develop domain-specific models of judgment and nonlinear process models that arise from the bounded nature of judgment. We then elaborate the differences between the programs and discuss how these differences can be viewed as mutually instructive: First, we show that the fast and frugal heuristic models can help bridge the clinical - actuarial divide, that is, they can be developed into actuarial methods that are both accurate and easy to implement by the unaided clinical judge. We then argue that Meehl's insistence on improving judgment makes clear the importance of examining the degree to which heuristics are used in the clinical domain and how acceptable they would be as actuarial tools

Although cognitive scientists have learned a lot about concepts, their findings have yet to be organized in a coherent theoretical framework. In addition, after twenty years of controversy, there is little sign that philosophers and psychologists are converging toward an agreement about the very nature of concepts.Doing without Concepts(Machery 2009) attempts to remedy this state of affairs. In this article, I review the main points and arguments developed at greater length inDoing without Concepts.