Dyslexic and normal readers' eye movements

34 8-13 yr old dyslexic and 36 age-matched normal readers' eye movements were compared while tracking a moving fixation point and in reading. Contrary to previous reports, the dyslexic and normal Ss did not differ in their number of saccades, percentage of regressions, or stability of fixations...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 1983-10, Vol.9 (5), p.816-825
Main Authors: Olson, Richard K, Kliegl, Reinhold, Davidson, Brian J
Format: Article
Language:English
Subjects:
Adolescent
Biological and medical sciences
Child
Dyslexia
Dyslexia - physiopathology
Eye Movements
Female
Fixation, Ocular
Human
Humans
Male
Medical sciences
Methodology. Experimentation
Oculomotor Muscles - physiopathology
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Reading
Saccades
Techniques and methods
Visual Tracking
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Summary:34 8-13 yr old dyslexic and 36 age-matched normal readers' eye movements were compared while tracking a moving fixation point and in reading. Contrary to previous reports, the dyslexic and normal Ss did not differ in their number of saccades, percentage of regressions, or stability of fixations in the tracking task. Thus, defective oculomotor control was not associated with, or a causal factor in, dyslexia. The dyslexics' abnormal eye movements in reading should therefore be related to differences in higher cognitive processes. However, individual differences in oculomotor efficiency, independent of reading ability, were found within both the dyslexic and normal groups, and these differences were correlated in reading and tracking tasks. (28 ref)
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.9.5.816