Aging and the strategic control of the fixation offset effect

Psychology and Aging
Nicholas CassavaughMatthew S Peterson

Abstract

A study was conducted to examine potential age-related differences in the strategic control of exogenous and endogenous saccades within the context of the fixation offset effect (FOE; i.e., faster saccades when a fixation point is removed than when it is left on throughout a trial). Subjects were instructed to make rapid saccades either on the basis of a suddenly appearing peripheral visual stimulus (exogenous saccade) or in response to a tone (endogenous saccade). On half of the trials the fixation point was removed simultaneously with the occurrence of the cue stimulus. Subjects' preparatory set was varied by manipulating the proportion of saccades generated to a visual and auditory stimulus within a trial block. Young and old adults both produced FOEs, and the FOEs were strategically modulated by preparatory set. The data are discussed in terms of aging and oculomotor control.

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Citations

Mar 13, 2009·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·Derek M IsaacowitzMark Schlangel
Jul 20, 2006·British Journal of Psychology·Jennifer D RyanEyal M Reingold
Mar 10, 2006·Vision Research·Jay PrattRichard A Abrams
Aug 4, 2006·Neuropsychologia·Ellen PoliakoffDonald J O'Boyle

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