STATIONARY AND PURSUIT VISUAL FIXATION SHARE SIMILAR BEHAVIOR

Citation
D. Boman et al., STATIONARY AND PURSUIT VISUAL FIXATION SHARE SIMILAR BEHAVIOR, Vision research, 36(5), 1996, pp. 751-763
Citations number
31
Categorie Soggetti
Neurosciences,Ophthalmology
Journal title
ISSN journal
00426989
Volume
36
Issue
5
Year of publication
1996
Pages
751 - 763
Database
ISI
SICI code
0042-6989(1996)36:5<751:SAPVFS>2.0.ZU;2-T
Abstract
Stationary and pursuit fixation may involve different fixation mechani sms that are reflected by differences in saccadic reaction times (SRTs ). Gap, Simultaneous, and Overlap interval paradigms provided three di stinct SRT ranges for comparisons between these two viewing conditions . SRTs following pursuit fixation were longer than following stationar y fixation, but were similarly affected by the interval paradigms. The SRT increase with smooth pursuit was largely explained by additional demands for programming oblique saccades. The paradigm dependent SRT r elationships also persisted after timing cues were minimized. These re sults indicate that stationary and pursuit fixation have similar respo nses to different fixation paradigms and do not implicate the existenc e of multiple fixation processes.