Abstract:
:How does the developing brain of the human infant solve the feature-binding problem when visual stimuli consisting of multiple colored objects are presented? A habituation--dishabituation procedure revealed that 1-month-old infants have the ability to discriminate changes in the conjunction of a familiar shape and color in two objects. However, this good earlier performance was followed by poorer performance at 2 months of age. The performance improved again at 3 months of age. Detailed analysis of the oculomotor behaviors revealed that the age of 2 months was a period of drastic transition when the tendency to stay with the fixated objects disappeared and repetitive saccades between the two objects emerged. Our findings suggest that the ability to perceive conjunctions of features is available to infants very early, that the perceptual/neural basis at 1 and at 3 months of age may be fundamentally different, and that feature integration by vigorous eye movements or selective attention may be the key functional difference between the age groups.
journal_name
Perceptionjournal_title
Perceptionauthors
Taga G,Ikejiri T,Tachibana T,Shimojo S,Soeda A,Takeuchi K,Konishi Ydoi
10.1068/p3167keywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
273-86issue
3eissn
0301-0066issn
1468-4233journal_volume
31pub_type
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