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Science 24 November 2000:
Vol. 290. no. 5496, pp. 1582 - 1585
DOI: 10.1126/science.290.5496.1582
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Reports

Gamma Oscillations and Object Processing in the Infant Brain

G. Csibra,1* G. Davis,1 M. W. Spratling,1 M. H. Johnson1

An enduring controversy in neuroscience concerns how the brain "binds" together separately coded stimulus features to form unitary representations of objects. Recent evidence has indicated a close link between this binding process and 40-hertz (gamma-band) oscillations generated by localized neural circuits. In a separate line of research, the ability of young infants to perceive objects as unitary and bounded has become a central focus for debates about the mechanisms of perceptual development. Here we demonstrate that binding-related 40-hertz oscillations are evident in the infant brain around 8 months of age, which is the same age at which behavioral and event-related potential evidence indicates the onset of perceptual binding of spatially separated static visual features.

1 Centre for Brain and Cognitive Development, School of Psychology, Birkbeck College, University of London, Malet Street, London WC1E 7HX, UK.
*   To whom correspondence should be addressed. E-mail: g.csibra{at}bbk.ac.uk

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