The early phase of horizontal optokinetic responses in the pigmented rat and the effects of lesions of the visual cortex

R. J. Harvey, C. De'Sperati, P. Strata

Research output: Contribution to journalArticlepeer-review

Abstract

Horizontal optokinetic responses of pigmented rats were studied both in intact animals and in animals that had received lesions of the visual area of the cerebral cortex. In response to uniform velocity stimulation, there was an initial phase of rapid acceleration, larger than that reported in earlier studies, followed by a period of fairly uniform acceleration until the eye velocity approached that of the stimulus. As reported previously, responses to monocular stimulation were highly asymmetric, with the responses to nasotemporal stimulation being much weaker than those to temporonasal stimulation. Responses to sinusoidal stimulation were also studied. No significant effect of cortical lesions on the responses was seen.

Original languageEnglish
Pages (from-to)1615-1625
Number of pages11
JournalVision Research
Volume37
Issue number12
DOIs
Publication statusPublished - Jun 1997

Keywords

  • Eye acceleration
  • Fast rise
  • Optokinetic nystagmus
  • Rat
  • Visual cortex

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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