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.
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.
|Keyword(s) / Subject(s):||Working memory, Decision making, Cued recall, Temporal dynamics, Hypothesis generation|
|School:||Birkbeck Schools and Departments > School of Science > Psychological Sciences|
|Date Deposited:||18 Oct 2012 09:49|
|Last Modified:||18 Apr 2013 09:12|
Additional statistics are available via IRStats2.