Parallel allocation of attention prior to the execution of saccade sequences.
In a series of 5 experiments, the allocation of attention prior to the execution of saccade sequences was examined by using a dual-task paradigm. In the primary task, participants were required to execute a sequence of 2 endogenous saccades. The secondary task was a forced-choice letter identification task. During the programming of the saccade sequences, letters were briefly presented at the saccade goals and at no-saccade locations. The results showed that performance was better for letters presented at any of the saccade goals than for letters presented at any of the no-saccade locations. The results support a spatial model that assumes that prior to the execution of a saccade sequence, attention is allocated in parallel to all saccade goals. ((c) 2003 APA, all rights reserved)
Vrije U, Dept of Cognitive Psychology, Amsterdam, Netherlands. rj.godijn@psy.vu.nl
Richard
R
Godijn
Jan
J
Theeuwes
D000328:Adult; D001288:Attention / Q000502:physiology*; D003463:Cues; D004192:Discrimination, Psychological / Q000502:physiology*; D006801:Humans; D008960:Models, Psychological; D010775:Photic Stimulation; D011597:Psychomotor Performance; D011930:Reaction Time; D012438:Saccades / Q000502:physiology*; D013028:Space Perception / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*