Contour integration by 6-month-old infants: discrimination of distinct contour shapes.
Previous research has indicated that the ability to integrate individual elements in the presence of noise is immature in 3-month-old infants. The present study extended the developmental timeline by investigating 6-month-olds' ability to integrate individual elements into whole contours through an assessment of their capability to discriminate circle and square contours constructed from oriented Gabor patches via a newly designed cueing paradigm for infants. If infants discriminate the centrally-presented contour cues, then their eye movements would correctly anticipate subsequent target presentation at a rate greater than chance. The results indicated that infants integrated the contours and discriminated the different shapes, but, consistent with past research, this ability is still fairly immature at this age, tolerating limited amount of noise.
Baker
Thomas J
TJ
Department of Psychology, York University, 333 Behavioral Sciences Building, 4700 Keele Street, Toronto, Ont., Canada M3J 1P3.
Tse
James
J
Gerhardstein
Peter
P
Adler
Scott A
SA
D002657:Child Development / Q000502:physiology; D003463:Cues; D004192:Discrimination, Psychological / Q000502:physiology*; D005133:Eye Movements / Q000502:physiology; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D007223:Infant; D010775:Photic Stimulation / Q000379:methods; D011597:Psychomotor Performance; D011930:Reaction Time