DMCA
Lack of lateral inhibitory interactions in visual cortex of monocularly deprived cats (1998)
| Venue: | Vision Research |
| Citations: | 5 - 0 self |
BibTeX
@ARTICLE{Kasamatsu98lackof,
author = {T. Kasamatsu and M. Kitano and T E. E. Sutter and A. M. Norcia},
title = {Lack of lateral inhibitory interactions in visual cortex of monocularly deprived cats},
journal = {Vision Research},
year = {1998}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
To gain new insight into the effects of monocular deprivation, we studied the visual cortex of adult cats deprived of vision in one eye. Local field potentials were recorded in response to contrast reversal of square-wave gratings modulated in time either by pseudorandom, m-sequences or periodically. We have found that: (1) stimulation of the retinotopic locus of the recording site elicits responses with abnormal waveforms and long latencies from the deprived eye; (2) stimulation of a remote, non-retinotopic locus elicits responses from the non-deprived eye but not from the deprived eye; (3) the monocularly deprived cortex lacks lateral inhibitory interactions which are characteristic of the normal cortex; and (4) steady-state responses howed little difference in spatial-frequency tuning and contrast sensitivity between the deprived and non-deprived eye, mostly confornfing to earlier field-potential data in monocular deprivation. Functional lateral interactions appear to be greatly reduced in monocularly deprived cortex. © 1997 Elsevier Science Ltd Amblyopia Monocular lid suture Contrast-reversal response Spatio-temporal interaction Long-range lateral connections
Keyphrases
visual cortex lateral inhibitory interaction monocular deprivation non-deprived eye new insight contrast sensitivity little difference square-wave grating site elicits response spatial-frequency tuning non-retinotopic locus elicits response steady-state response functional lateral interaction field-potential data long latency normal cortex local field potential abnormal waveform retinotopic locus adult cat
