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Psychologische Forschung

, Volume 31, Issue 1, pp 52–62 | Cite as

Contrasting visuomotor functions of tectum and cortex in the golden hamster

  • Gerald E. Schneider
Article

Summary

Visually-guided orientation (spatial localization) and visual discrimination were dissociated by means of brain lesions in the golden hamster. After ablation of visual cortex, hamsters failed to discriminate visual patterns, but showed nearly normal ability to localize an object in space by means of vision. Ablation of the superior colliculus produced opposite effects: these animals were completely unable to orient to the position of a visual stimulus, but nevertheless showed excellent pattern discrimination.

Keywords

Opposite Effect Visual Stimulus Visual Cortex Spatial Localization Brain Lesion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

Visuell gesteuerte Orientierung (räumliche Lokalisation) und visuelles Unterscheidungsvermögen beim Goldhamster werden durch Hirnläsionen funktionell getrennt. Nach Entfernung der Sehrinde können die Tiere keine visuellen Musterunterscheidungen, wohl aber noch in fast normaler Weise visuelle Objektlokalisationen vornehmen. Entfernung des Colliculus superior führt zu entgegengesetzten Effekten: die Tiere können sich nicht mehr nach der Position eines visuellen Reizes orientieren, zeigen aber trotzdem ausgezeichnete Musterunterscheidung.

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Copyright information

© Springer-Verlag 1967

Authors and Affiliations

  • Gerald E. Schneider
    • 1
  1. 1.Massachusetts Institute of TechnologyUSA

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