Effects of prime-target spatial seperation and attentional deployment on masked repetition priming

Y. Marzouki, M. Meeter, J. Grainger

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Abstract

In two masked repetition priming experiments with letter stimuli, the positions of prime and target stimuli were varied horizontally from fixation. Priming effects did not interact with position when prime and target location covaried (Experiment 1A) but diminished with increasing prime eccentricity when targets were always centrally located (Experiment 1B). Two accounts of this pattern of priming effects were proposed that postulate two different mechanisms over and above effects of visual acuity. The integration account postulates degree of separation of prime and target stimuli as the critical factor, and the attentional account postulates spatial attention as the critical factor. The results of Experiment 2, in which prime and target positions were manipulated orthogonally, were in favor of the attentional account. Repetition priming did not vary as a function of whether or not primes and targets appeared at the same location, but target processing was facilitated independently of priming when targets appeared at the same location as primes, especially in the right visual field. Copyright 2008 Psychonomic Society, Inc.
Original languageEnglish
Pages (from-to)1393-1400
Number of pages8
JournalPerception & Psychophysics
Volume70
Issue number7
DOIs
Publication statusPublished - 2008

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