Visual fixation and saccadic eye movements were assessed in 31 mild to moderately
demented patients with probable Alzheimer's disease (AD) and 31 age-and education-
matched nondemented elderly control subjects. Seventeen AD and 17 matched control
subjects were reassessed after a 9-month interval. On a fixation task, duration of fixation and
number of intrusive saccades were not different between groups at baseline or follow-up.
Both AD patients and control subjects showed more intrusive saccades at follow-up than at …