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ERIC Number: EJ835048
Record Type: Journal
Publication Date: 2009-Apr
Pages: 25
Abstractor: As Provided
ISSN: ISSN-0033-295X
Dispersion of Response Times Reveals Cognitive Dynamics
Holden, John G.; Van Orden, Guy C.; Turvey, Michael T.
Psychological Review, v116 n2 p318-342 Apr 2009
Trial-to-trial variation in word-pronunciation times exhibits 1/f scaling. One explanation is that human performances are consequent on multiplicative interactions among interdependent processes-interaction dominant dynamics. This article describes simulated distributions of pronunciation times in a further test for multiplicative interactions and interdependence. Individual participant distributions of approximately 1,100 word-pronunciation times were successfully mimicked for each participant in combinations of lognormal and power-law behavior. Successful hazard function simulations generalized these results to establish interaction dominant dynamics, in contrast with component dominant dynamics, as a likely mechanism for cognitive activity. (Contains 8 figures and 4 tables.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A