Location cuing and response time distributions in visual attention.
The allocation of visual attention was investigated in two experiments. In Experiment 1 (n = 24), a peripheral cue was presented, and in Experiment 2 (n = 24), a central cue was used. In both experiments, cue validity was 90%, and the task was four-choice target identification. Response time distributions were collected for valid trials over five cue-target stimulus onset asynchronies (SOAs), and ex-Gaussian parameters were extracted. In both experiments, only the mean of the Gaussian component decreased as a function of cue-target SOA, which implied a strict time axis translation of the distributions. The results were consistent with sequential sampling models featuring a variable delay in the onset of information uptake.
Gottlob
Lawrence R
LR
Department of Psychology, University of Kentucky, Lexington, Kentucky 40506-0044, USA. gottlob@uky.edu
D001288:Attention; D003463:Cues; D006801:Humans; D011930:Reaction Time; D015203:Reproducibility of Results; D014796:Visual Perception