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The time course of perceptual processes in absolute identification

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Kent, Christopher, Guest, Duncan and Adelman, James S. (2009) The time course of perceptual processes in absolute identification. In: Experimental Psychology Society, York, UK, 8-10 Jul 2009

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Abstract

Current models of absolute identification emphasise different processes as the
underlying cause of observed patterns of choices and response latencies in the task.
According to one model, the Extended Generalized Context Model (EGCM; Kent &
Lamberts, 2005), behavioural latency patterns are directly linked to stimulus sampling
processes; all other models emphasise the response selection stage. In two tasks (one
using visual stimuli and one using auditory stimuli) in which stimulus exposure duration
was manipulated, we demonstrate that stimulus sampling is very rapid, but time to
respond is long. This is contrary to the EGCM predictions and implicates response
selection processes. In addition, analysis of the speed-accuracy relationship produced by
manipulations of set size, stimulus spacing and exposure duration exhibited stable
individual differences in not only magnitude, but direction. Overall, the results do not
support the emphasis on stimulus sampling in the EGCM, but do suggest downstream
influences of stimulus sampling that are neglected in other models.

Item Type: Conference Item (Paper)
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science > Psychology
Library of Congress Subject Headings (LCSH): Perception, Psychology, Experimental
Official Date: 2009
Dates:
DateEvent
2009Completion
Status: Not Peer Reviewed
Conference Paper Type: Paper
Title of Event: Experimental Psychology Society
Type of Event: Other
Location of Event: York, UK
Date(s) of Event: 8-10 Jul 2009

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