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Receptive field characteristics of superior colliculus neurons and visually guided behavior in dark‐reared hamsters
Author(s) -
Rhoades Robert W.,
Chalupa Leo M.
Publication year - 1978
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901770104
Subject(s) - superior colliculus , receptive field , biology , stimulus (psychology) , neuroscience , darkness , sensory deprivation , visual field , hamster , mesocricetus , tonic (physiology) , visual perception , superior colliculi , golden hamster , visual cortex , visual system , psychology , perception , sensory system , endocrinology , cognitive psychology , botany
Visual response properties of single neurons in the superior colliculus of golden hamsters reared from birth to adulthood in total darkness were compared to those of normal hamsters. Directional selectivity, speed preferences, and receptive field organization in dark‐reared hamsters were essentially the same as those found in normally reared animals. Subtle neurophysiological effects of visual deprivation were indicated by the longer latencies of “on” responses to flashed spots of light in the dark‐reared animals. Also, in the visually deprived animals three cells were encountered which changed their responses from phasic to tonic as the size of the visual stimulus was increased. In normally reared animals all cells responding to stationary stimuli showed only phasic responses regardless of spot size. Behaviorally, dark‐reared animals could not be distinguished from normal animals on the basis of visual orienting and following tests. It was concluded that in the golden hamster visual experience during development has a minimal role in the induction or maintenance of the normal functional development of the superior colliculus.