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The frequency of visually induced gamma-band oscillations depends on the size of early human visual cortex

Schwarzkopf, D. S., Robertson, D. J., Song, Chen, Barnes, G. R. and Rees, G. 2012. The frequency of visually induced gamma-band oscillations depends on the size of early human visual cortex. Journal of Neuroscience 32 (4) , pp. 1507-1512. 10.1523/JNEUROSCI.4771-11.2012

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Abstract

The structural and functional architecture of the human brain is characterized by considerable variability, which has consequences for visual perception. However, the neurophysiological events mediating the relationship between interindividual differences in cortical surface area and visual perception have, until now, remained unknown. Here, we show that the retinotopically defined surface areas of central V1 and V2 are correlated with the peak frequency of visually induced oscillations in the gamma band, as measured with magnetoencephalography. Gamma-band oscillations are thought to play an important role in visual processing. We propose that individual differences in macroscopic gamma frequency may be attributed to interindividual variability in the microscopic architecture of visual cortex.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff University Brain Research Imaging Centre (CUBRIC)
Psychology
Publisher: Society for Neuroscience
ISSN: 0270-6474
Date of First Compliant Deposit: 19 November 2017
Date of Acceptance: 22 December 2011
Last Modified: 03 Apr 2019 09:37
URI: http://orca.cf.ac.uk/id/eprint/106726

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