Abstract
Effects of sample stimulus, delay, and correct response position from Trial N − 1 on performance during Trial N were examined for a two-choice delayed matching from sample task. The results seemed to demonstrate proactive interference with retention of sample stimuli on Trial N when that stimulus was different from Trial N − 1 as compared to when the stimulus was the same as on Trial N − 1. In addition, when stimuli were the same on Trial N − 1 and Trial N, and Trial N − 1 was incorrect, there was greater interference than if Trial N − 1 was correct. Evaluation of performance as a function of delays on Trial N − 1 and Trial N provided some support for D’Amato’s recent description of delayed matching from sample performance as a temporal discrimination process.
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