One of the most debated questions in psychology and cognitive science is the nature and the functioning of the mental processes involved in deductive reasoning. However, all existing theories refer to a specific deductive domain, like syllogistic, propositional or relational reasoning.Our goal is to unify the main types of deductive reasoning into a single set of basic procedures. In particular, we bring together the microtheories developed from a mental models perspective in a single theory, for which we provide a formal (...) foundation. We validate the theory through a computational model (UNICORE) which allows fine‐grained predictions of subjects' performance in different reasoning domains.The performance of the model is tested against the performance of experimental subjects—as reported in the relevant literature—in the three areas of syllogistic, relational and propositional reasoning. The computational model proves to be a satisfactory artificial subject, reproducing both correct and erroneous performance of the human subjects. Moreover, we introduce a developmental trend in the program, in order to simulate the performance of subjects of different ages, ranging from children (3–6) to adolescents (8–12) to adults (>21). The simulation model performs similarly to the subjects of different ages.Our conclusion is that the validity of the mental model approach is confirmed for the deductive reasoning domain, and that it is possible to devise a unique mechanism able to deal with the specific subareas. The proposed computational model (UNICORE) represents such a unifying structure. (shrink)

Hempel's paradox of the ravens has to do with the question of what constitutes confirmation from a logical point of view; Wason 's selection task has been used extensively to investigate how people go about attempting to confirm or disconfirm conditional claims. This paper presents an argument that the paradox is resolved, and that people's typical performance in the selection task can be explained, by consideration of what constitutes an effective strategy for seeking evidence of the tenability of universal or (...) conditional claims in everyday life. (shrink)

This paper reports on the Kuhnian revolution now occurring in neuropsychology that is finally supportive of and friendly to phenomenology – the “enactive” approach to the mind-body relation, grounded in the notion of self-organization, which is consistent with Husserl and Merleau-Ponty on virtually every point. According to the enactive approach, human minds understand the world by virtue of the ways our bodies can act relative to it, or the ways we can imagine acting. This requires that action be distinguished from (...) passivity, that the mental be approached from a first person perspective, and that the cognitive capacities of the brain be grounded in the emotional and motivational processes that guide action and anticipate action affordances. It avoids the old intractable problems inherent in the computationalist approaches of twentieth century atomism and radical empiricism, and again allows phenomenology to bridge to neuropsychology in the way Merleau-Ponty was already doing over half a century ago. (shrink)