How much memory does oculomotor search have?
Research has demonstrated that oculomotor visual search is guided by memory for which items or locations within a display have already been inspected. In the study reported here, we used a gaze-contingent search paradigm to examine properties of this memory. Data revealed a memory buffer for search history of three to four items. This buffer was effected in part by a space-based trace attached to a location independently of whether the object that had been seen at that position remained visible, and was subject to interference from other stimuli seen in the course of a trial.
McCarley
Jason S
JS
Beckman Institute, University of Illinois at Urbana-Champaign, USA. jmccarley@psychology.msstate.edu
Wang
Ranxiao F
RF
Kramer
Arthur F
AF
Irwin
David E
DE
Peterson
Matthew S
MS
D000328:Adult; D001288:Attention; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term; D009949:Orientation; D010364:Pattern Recognition, Visual; D011601:Psychophysics; D012438:Saccades