PMID: 617217Jul 1, 1977Paper

Responses and properties of receptive fields of neurons in the visual projection zone of the pigeon hyperstriatum

Neuroscience and Behavioral Physiology
V I Gusel'nikovD C Hunh

Abstract

Unit responses in the hyperstriatal region of the pigeon forebrain to the action of various visual stimuli were investigated. Particular attention was paid to the discovery of retinotopic projection in the Wulst region. It was shown that as the electrode was advanced in the caudal direction in the zone of visual projection of the hyperstriatum the receptive fields of the neurons recorded shifted in the opposite direction in the visual field. The receptive fields of neurons of the ventral and dorsal hyperstriatum lie higher in the visual field and are larger in diameter than those of neurons of the accessory hyperstriatum. Unit responses in the visual projection zone of the Wulst depend on the intensity of illumination, size, and speed and direction of movement of the test objects across the receptive field. The functional role of the retino--thalamo--telencephalic system in visual interpretation in birds is discussed and it is suggested that the Wulst region is comparable with the striatal and also with the frontal regions of the mammalian cortex.

References

Jun 1, 1971·Journal of Comparative and Physiological Psychology·E M Macphail
Dec 1, 1969·Perceptual and Motor Skills·H Bachrach
Sep 1, 1970·The Journal of Comparative Neurology·M B PritzR G Northcutt
Jun 1, 1968·Scientific American·L J Stettner, K A Matyniak
Apr 1, 1963·The Journal of Comparative Neurology·H P ZEIGLER

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