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Working memory dynamics bias the generation of beliefs: the influence of data presentation rate on hypothesis generation

Lange, Nicholas D. and Thomas, R.P. and Buttaccio, D.R. and Illingworth, D.A. and Davelaar, Eddy J. (2013) Working memory dynamics bias the generation of beliefs: the influence of data presentation rate on hypothesis generation. Psychonomic Bulletin and Review 20 (1), pp. 171-176. ISSN 1069-9384.

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Official URL: http://dx.doi.org/10.3758/s13423-012-0316-9

Abstract

Although temporal dynamics are inherent aspects of diagnostic tasks, few studies have investigated how various aspects of time course influence hypothesis generation. An experiment is reported that demonstrates that working memory dynamics operating during serial data acquisition bias hypothesis generation. The presentation rate (and order) of a sequence of serially presented symptoms was manipulated to be either fast (180 ms per symptom) or slow (1,500 ms per symptom) in a simulated medical diagnosis task. When the presentation rate was slow, participants chose the disease hypothesis consistent with the symptoms appearing later in the sequence. When the presentation rate was fast, however, participants chose the disease hypothesis consistent with the symptoms appearing earlier in the sequence, therefore representing a novel primacy effect. We predicted and account for this effect through competitive working memory dynamics governing information acquisition and the contribution of maintained information to the retrieval of hypotheses from long-term memory.

Item Type: Article
Keyword(s) / Subject(s): Working memory, Decision making, Cued recall, Temporal dynamics, Hypothesis generation
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Psychological Sciences
Depositing User: Administrator
Date Deposited: 18 Oct 2012 09:49
Last Modified: 18 Apr 2013 09:12
URI: http://eprints.bbk.ac.uk/id/eprint/5310

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