Spatial and temporal properties of cat geniculate neurones after prolonged deprivation

A. M. Derrington, Michael Hawken

Research output: Contribution to journalArticle

Abstract

Extracellular recordings were made from the dorsal lateral geniculate nucleus of monocularly deprived, dark-reared and normal cats. The spatial and temporal properties of the neurones were studied. The mean acuity of X-cells with receptive fields within 3 degrees of the area centralis was 3.9 c/degree for deprived eye cells from monocularly deprived cats, compared with 3.8 c/degree for normal cells. The mean activity of X-cells with receptive fields within 4 degrees of the area centralis was 4.3 c/degree for a dark-reared cat compared with 4.0 c/degree for a normal cat. The peak response rates of X-cells to their best spatial frequency were determined. The mean values for the normal, monocularly deprived and dark-reared populations were all similar. Measurement of the temporal frequency tuning of a number of cells was made. The mean peak temporal for the dark-reared X-cells was lower than for monocularly deprived or normal X-cells. The results are discussed with referrence to the location of the primary neural deficit induced by visual deprivation.

Original languageEnglish (US)
Pages (from-to)107-120
Number of pages14
JournalJournal of Physiology
VolumeVol. 314
StatePublished - 1981

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Cats
Neurons
Geniculate Bodies
Reference Values
Cell Count
Population

ASJC Scopus subject areas

  • Physiology

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Spatial and temporal properties of cat geniculate neurones after prolonged deprivation. / Derrington, A. M.; Hawken, Michael.

In: Journal of Physiology, Vol. Vol. 314, 1981, p. 107-120.

Research output: Contribution to journalArticle

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