A habituation account of change detection in same/different judgments

Davelaar, Eddy J. and Tian, Xing and Weidemann, Christoph T. and Huber, David E. (2011) A habituation account of change detection in same/different judgments. [Journal (Paginated)]

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We investigated the basis of change detection in a short-term priming task. In two experiments, participants were asked to indicate whether or not a target word was the same as a previously presented cue. Data from an experiment measuring magnetoencephalography failed to find different patterns for “same” and “different” responses, consistent with the claim that both arise from a common neural source, with response magnitude defining the difference between immediate novelty versus familiarity. In a behavioral experiment, we tested and confirmed the predictions of a habituation account of these judgments by comparing conditions in which the target, the cue, or neither was primed by its presentation in the previous trial. As predicted, cue-primed trials had faster response times, and target-primed trials had slower response times relative to the neither-primed baseline. These results were obtained irrespective of response repetition and stimulus–response contingencies. The behavioral and brain activity data support the view that detection of change drives performance in these tasks and that the underlying mechanism is neuronal habituation.

Item Type:Journal (Paginated)
Subjects:Neuroscience > Brain Imaging
Psychology > Cognitive Psychology
Neuroscience > Computational Neuroscience
ID Code:7718
Deposited By: Weidemann, Christoph T.
Deposited On:25 Apr 2012 13:05
Last Modified:25 Apr 2012 13:05


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