title: Automatic-heuristic and executive-analytic processing during reasoning: Chronometric and dual-task considerations.
abstract: Human reasoning has been shown to overly rely on intuitive, heuristic processing instead of a more demanding analytic inference process. Four experiments tested the central claim of current dual-process theories that analytic operations involve time-consuming executive processing whereas the heuristic system would operate automatically. Participants solved conjunction fallacy problems and indicative and deontic selection tasks. Experiment 1 established that making correct analytic inferences demanded more processing time than did making heuristic inferences. Experiment 2 showed that burdening the executive resources with an attention-demanding secondary task decreased correct, analytic responding and boosted the rate of conjunction fallacies and indicative matching card selections. Results were replicated in Experiments 3 and 4 with a different secondary-task procedure. Involvement of executive resources for the deontic selection task was less clear. Findings validate basic processing assumptions of the dual-process framework and complete the correlational research programme of K. E. Stanovich and R. F. West (2000).
authors.affiliation: University of Leuven, Leuven, Belgium. Wim.Deneys@psy.kuleuven.be
authors.forename: Wim
authors.initials: W
authors.lastname: De Neys
mesh_terms: D001332:Automatism; D002755:Choice Behavior; D003071:Cognition; D003657:Decision Making; D006801:Humans; D011930:Reaction Time