We examined age-group differences in a saccadic interference task, which requires that participants execute a saccade (eye movement) toward an ahrupt-onset visual target presented to the right or left of fixation. On some trials, we imposed diffuse interference by bilateral (top and bottom) flashes of light presented 20 to 210 ms after target onset. When the flashes followed the cue at shorter intervals, time to execute a saccade was slowed relative to no-flash trials. This slowing was greater and sustained over a larger cue-flash interval for older participants than for the young participants. The results indicate that, when diffuse distractors are used, older adults are more susceptible to saccade disruption than are young adults.
|Journal||Journals of Gerontology - Series B Psychological Sciences and Social Sciences|
|State||Published - Mar 2007|
ASJC Scopus subject areas
- Health(social science)
- Sociology and Political Science
- Life-span and Life-course Studies