Unitary classification in a comparison task.
Sequential effects were used to diagnose whether elements in a two-object comparison task are represented as a perceptual unit or separately. The presence of sequential effects and absence of influences of individual elements on the subsequent trial in a successive comparison task favor the hypothesis that the elements in a pair are represented as a unit, and that a response is made to the perceptual unit. The patterns of response times on same and different trials differed in several ways; these suggested that the quality of the representations of same and different trials may differ.
Li
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X
State University of New York, Binghamton.
Smith
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AF
D000328:Adult; D001288:Attention; D004193:Discrimination Learning; D006801:Humans; D011939:Mental Recall; D010364:Pattern Recognition, Visual; D011340:Problem Solving; D011601:Psychophysics; D011930:Reaction Time