The locus of location repetition latency effects.
We examined the processing locus (location vs. response) of location repetition effects in terms of the event [target (t) or distractor (d)] that initially occupied and then re-occupied the repeated location (i.e., t-to-t, t-to-d, d-to-t, d-to-d). Trials were presented in pairs (prime, then probe) and 2:1 location-to-response mappings were used. Generally, for all repetition conditions, perceptual processing at the repeated location itself was facilitated (location locus), while re-activated responses delayed output production (response locus). More specifically, perceptual facilitation observed for a repeated location was independent of the kind of processing (i.e., t or d) that occurred earlier, suggesting that it is not the labeling of locations as relevant or irrelevant that determines location repetition effects. Response production was significantly slowed only when a just-inhibited response had then to be executed, which supported the view that the spatial negative priming effect has a response locus.
Guy
Sarah
S
Faculty of Health Sciences, The University of Western Ontario, London, Ontario.
Buckolz
Eric
E
Khan
Michael
M
D000328:Adult; D001288:Attention / Q000502:physiology*; D003463:Cues; D005260:Female; D006801:Humans; D008297:Male; D010470:Perceptual Masking; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time / Q000502:physiology*; D017603:Signal Detection, Psychological; D013028:Space Perception / Q000502:physiology*; D018709:Statistics, Nonparametric