On the spatial metric of short-SOA costs of exogenous cuing.
When the stimulus onset asynchrony (SOA) between the cue and the target is short, exogenous spatial cues usually produce a response time benefit. However, consistent with several recent studies, we have found that a short stimulus onset asynchrony is not sufficient. At least one more factor--the number of cue and target locations--also plays a role. Even more interesting, when 8 cue and target locations are used, the effect of an exogenous cue produces a cost on valid cue trials, and the spatial metric of this negative cuing effect depends on whether the cue remains visible at target onset.
Penn State University, USA. pchen@kmrrec.org
Peggy
P
Chen
Cathleen
C
Moore
J Toby
JT
Mordkoff
D000328:Adult; D001288:Attention; D003463:Cues; D004192:Discrimination, Psychological; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D013998:Time Perception