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PubMed · 456450

Collicular function in human vision.

J Zihl·D von Cramon
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Abstract

Threshold elevation in the periphery of the visual field as a consequence of repetitive stimulation can be abolished by stimulating a mirror-symmetric position in the contralateral visual half-field. A patient suffering from a congenital malformation of the right superior colliculus did not exhibit threshold elevation when stimulated repeatedly in the left visual field. Stimulation in the right visual half-field resulted in the usually observed threshold elevation, but stimulating a mirror-symmetric position in the left visual half-field did not abolish threshold elevation in the right half-field. These observations suggest that: (a) threshold elevation probably occurs as a consequence of collicular adaptation and (b) the mirror-symmetrically organized interhemispheric interaction is mediated at the collicular level.

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Dominance, CerebralHumansSuperior ColliculiVisual FieldsVisual PathwaysVisual PerceptionJournal Article

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J Zihl, D von Cramon. 1979-05-02. Collicular function in human vision.. https://doi.org/10.1007/bf00236761

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