SUPERIORCOLLICULUS

Superior colliculus

The optic tectum or simply tectum is a paired structure that forms a major component of the vertebrate midbrain. In mammals, this structure is more commonly called the superior colliculus, but, even in mammals, the adjective tectal is commonly used. The tectum is a layered structure, with a number of layers that vary by species. The superficial layers are sensory-related, and receive input from the eyes as well as other sensory systems. The deep layers are motor-related, capable of activating eye movements as well as other responses. There are also intermediate layers, with multi-sensory cells and motor properties.

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superior colliculus

Noun

  1. A structure on the tectum that receives neural projections directly from the retina.
  2. The primary area of the brain thought to be involved in saccadic eye movements.
  3. The area of the brain thought to be involved in hand-eye coordination.


The above text is a snippet from Wiktionary: superior colliculus
and as such is available under the Creative Commons Attribution/Share-Alike License.

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