Motion mechanisms in strobe-reared cats

Psychophysical and electrophysical measures

Tatiana Pasternak, William H. Merigan, J. Anthony Movshon

Research output: Contribution to journalArticle

Abstract

Cats were reared from birth to at least 12 months of age in a visually static environment (illuminated 40/min by a 3 μsec strobe flash). Single unit recordings from these animals revealed abnormalities in spatial and directional properties of cortical neurons. In an attempt to find psychophysical correlates of these neural deficits, spatial contrast sensitivity and motion detection thresholds were measured behaviorally. Both spatial vision and motion detection were greatly impaired. While spatial deficits failed to recover, motion thresholds improved greatly following extended training. These improvements in behavioral motion response were accompanied by the recovery of cortical directional selectivity. The recovery of motion thresholds and directional selectivity was direction specific: the distribution of the preferred directions of cortical neurons and motion thresholds were sharply biased towards the direction first seen in training. Thus, directional mechanisms of adult motion deprived cats may be modified if following deprivation the animals are trained to detect moving stimuli.

Original languageEnglish (US)
Pages (from-to)321-332
Number of pages12
JournalActa Psychologica
Volume48
Issue number1-3
DOIs
StatePublished - 1981

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Cats
Neurons
Contrast Sensitivity
Psychophysical
Parturition
Direction compound
Animals
Recovery
Neuron

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Experimental and Cognitive Psychology

Cite this

Motion mechanisms in strobe-reared cats : Psychophysical and electrophysical measures. / Pasternak, Tatiana; Merigan, William H.; Movshon, J. Anthony.

In: Acta Psychologica, Vol. 48, No. 1-3, 1981, p. 321-332.

Research output: Contribution to journalArticle

Pasternak, Tatiana ; Merigan, William H. ; Movshon, J. Anthony. / Motion mechanisms in strobe-reared cats : Psychophysical and electrophysical measures. In: Acta Psychologica. 1981 ; Vol. 48, No. 1-3. pp. 321-332.
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