Temporal parameters and time course of perceptual latency priming.
Visual stimuli (primes) reduce the perceptual latency of a target appearing at the same location (perceptual latency priming, PLP). Three experiments assessed the time course of PLP by masked and, in Experiment 3, unmasked primes. Experiments 1 and 2 investigated the temporal parameters that determine the size of priming. Stimulus onset asynchrony was found to exert the main influence accompanied by a small effect of prime duration. Experiment 3 used a large range of priming onset asynchronies. We suggest to explain PLP by the Asynchronous Updating Model which relates it to the asynchrony of 2 central coding processes, preattentive coding of basic visual features and attentional orienting as a prerequisite for perceptual judgments and conscious perception.
Department of Psychology, Bielefeld University, P.O. Box 10 01 31, D-33501 Bielefeld, Germany. ingrid.scharlau@uni-bielefeld.de
Ingrid
I
Scharlau
Odmar
O
Neumann
D000328:Adult; D001288:Attention; D005260:Female; D006801:Humans; D008297:Male; D010470:Perceptual Masking; D011930:Reaction Time; D013998:Time Perception; D014796:Visual Perception