Recursion in programs, thought, and language

Phil Johnson-Laird, along with his collaborators Monica Bucciarelli, Robert Mackiewicz, and myself, published a paper in Psychonomic Bulletin & Review that reviewed research into how humans consciously reason about recursive operations. Though the term “recursion” is often used by...

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M&C paper on negating counterfactual and semifactual conditionals

Orlando Espino, Isabel Orenes, and Sergio Moreno-Ríos recently investigated how people comprehend the negation of two distinct types of conditionals — counterfactuals and semifactuals — and published their results in Memory & Cognition. Their work shows that, like indicative...

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Dames et al. investigate the stability of syllogistic reasoning in T&R

Hannah Dames, Karl Christoph Klauer, and Marco Ragni published a paper in Thinking & Reasoning about the stability of syllogistic reasoning, i.e., how performance changes from one test to another. They find that reasoning ability isn’t inherently...

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New paper on negation and counterfactual reasoning out in Current Psychology

Jesica Gómez-Sánchez and her colleagues Sergio Moreno-Ríos and Caren Frosch recently published a new paper in Current Psychology on how counterfactual reasoning interacts with thinking about negation. They find that both children and adults construct counterfactuals that serve as...

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Reasoning with counterintuitive and arbitrary conditionals

In recent years, arbitrary conditionals such as, “If a person goes shopping, then that person gets pimples”, have challenged many existing accounts of conditional reasoning. Estefania Gazzo Castañeda and Markus Knauff recently published new data shedding light...

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Isabel Orenes on perceiving negations

Isabel Orenes published a new paper in the Journal of Psycholinguistic Research on how people perceive negative sentences. She reports on eye-tracking data that suggest that people have an easier time processing symbolic representations rather than iconic simulations....

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Chapter on rational deductions in the Routledge Handbook of Bounded Rationality

Phil Johnson-Laird released a new chapter coming out in the Routledge Handbook of Bounded Rationality on the model theory and how it establishes principles of rationality. Here is an excerpt from the chapter: Can naïve individuals – those who...

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Paper on free choice permissions, paradoxes, and disjunctive reasoning now out in JCP

Phil Johnson-Laird, Cristina Quelas, and Celia Rasga publised a paper in the Journal of Cognitive Psychology titled “The mental model theory of free choice permissions and paradoxical disjunctive inferences”. The paper addresses paradoxes of free choice, as in: You can...

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New paper on counterfactual thoughts about cooperation in social dilemmas

Stefania Pighin, Ruth Byrne, and Katya Tentori published a new paper in Thinking & Reasoning about how people think about how things could have turned out differently after deciding to cooperate or not in social games. Their paper is...

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López-Astorga et al. review the probability of conditionals in PBR

Miguel López-Astorga, Marco Ragni, and Phil Johnson-Laird present a new review on the probability of conditionals in Psychonomic Bulletin & Review: their analysis focuses on the psychological plausibility of the proposal that the probability of expressions such as if...

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