Visual Functions of the Primate Superior Colliculus

DOI Web Site 145 References
  • Ziad M. Hafed
    Werner Reichardt Centre for Integrative Neuroscience, University of Tübingen, Tübingen, Germany;
  • Klaus-Peter Hoffmann
    Faculty for Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany;
  • Chih-Yang Chen
    Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan;
  • Amarender R. Bogadhi
    Central Nervous System Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany;

Abstract

<jats:p> The superior colliculus (SC) is a subcortical brain structure that is relevant for sensation, cognition, and action. In nonhuman primates, a rich history of studies has provided unprecedented detail about this structure's role in controlling orienting behaviors; as a result, the primate SC has become primarily regarded as a motor control structure. However, as in other species, the primate SC is also a highly visual structure: A fraction of its inputs is retinal and complemented by inputs from visual cortical areas, including the primary visual cortex. Motivated by this, recent investigations are revealing the rich visual pattern analysis capabilities of the primate SC, placing this structure in an ideal position to guide orienting movements. The anatomical proximity of the primate SC to both early visual inputs and final motor control apparatuses, as well as its ascending feedback projections to the cortex, affirms an important role for this structure in active perception. </jats:p>

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