The visually evoked potential in response to vernier offsets in infants.
The visually evoked potential (VEP) was recorded from infants (1 month 25 days to 13 months 3 days) in response to vernier offsets, motion displacements, and a stationary stimulus which served as a noise control. The records were analyzed by five masked adult observers familiar with VEP recordings using a signal detection method. The results suggest that a VEP can be recorded from infants in response to a vernier offset and the response resembles that obtained from adults tested with the same procedure. However, unlike adults, infants also showed a response to a motion displacement of the same magnitude suggesting that infants may not show the same specificity for the break in colinearity characteristic of the adult VEP.
Manny
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University of Houston, College of Optometry, Texas 77004.
D005074:Evoked Potentials, Visual; D006801:Humans; D007223:Infant; D009039:Motion Perception / Q000502:physiology; D011601:Psychophysics / Q000379:methods; D012684:Sensory Thresholds; D014787:Vision Tests; D014792:Visual Acuity