In:
PLOS Biology, Public Library of Science (PLoS), Vol. 19, No. 12 ( 2021-12-21), p. e3001466-
Kurzfassung:
Gamma rhythms in many brain regions, including the primary visual cortex (V1), are thought to play a role in information processing. Here, we report a surprising finding of 3 narrowband gamma rhythms in V1 that processed distinct spatial frequency (SF) signals and had different neural origins. The low gamma (LG; 25 to 40 Hz) rhythm was generated at the V1 superficial layer and preferred a higher SF compared with spike activity, whereas both the medium gamma (MG; 40 to 65 Hz), generated at the cortical level, and the high gamma HG; (65 to 85 Hz), originated precortically, preferred lower SF information. Furthermore, compared with the rates of spike activity, the powers of the 3 gammas had better performance in discriminating the edge and surface of simple objects. These findings suggest that gamma rhythms reflect the neural dynamics of neural circuitries that process different SF information in the visual system, which may be crucial for multiplexing SF information and synchronizing different features of an object.
Materialart:
Online-Ressource
ISSN:
1545-7885
DOI:
10.1371/journal.pbio.3001466
DOI:
10.1371/journal.pbio.3001466.g001
DOI:
10.1371/journal.pbio.3001466.g002
DOI:
10.1371/journal.pbio.3001466.g003
DOI:
10.1371/journal.pbio.3001466.g004
DOI:
10.1371/journal.pbio.3001466.g005
DOI:
10.1371/journal.pbio.3001466.g006
DOI:
10.1371/journal.pbio.3001466.s001
DOI:
10.1371/journal.pbio.3001466.s002
DOI:
10.1371/journal.pbio.3001466.s003
DOI:
10.1371/journal.pbio.3001466.s004
DOI:
10.1371/journal.pbio.3001466.s005
DOI:
10.1371/journal.pbio.3001466.s006
DOI:
10.1371/journal.pbio.3001466.s007
DOI:
10.1371/journal.pbio.3001466.s008
DOI:
10.1371/journal.pbio.3001466.s009
DOI:
10.1371/journal.pbio.3001466.s010
DOI:
10.1371/journal.pbio.3001466.s011
DOI:
10.1371/journal.pbio.3001466.s012
Sprache:
Englisch
Verlag:
Public Library of Science (PLoS)
Publikationsdatum:
2021
ZDB Id:
2126773-X