Saccadic eye movements during reading were examined as a function of the side of visual field cut and the impairment of visual contrast sensitivity. Five patients with various visual field defects were compared to five age-matched controls. Patients with right visual field defect showed an increase in the number of rightward saccades and a decrease in their amplitude, and patients with left visual field defects showed a pattern more similar to that of the control subjects. Two patients showed a selective deficit in the range of medium-high spatial frequency; they were the only patients to show a lengthening of mean fixation time during reading. These results indicate selective effects on reading depending on primary sensory defects. The clinical relevance of these findings is briefly discussed.
|Number of pages||12|
|Publication status||Published - 1996|
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Neuropsychology and Physiological Psychology
- Cognitive Neuroscience