tectal

The superficial layers receive input mainly from the retina, vision-related areas of the cerebral cortex, and two tectal-related structures called the frontal eye fields.

Citizendium, the Citizens' Compendium - Recent changes [en] 2009

Thus, the tectum-Ipc-Imc circuit causes tectal activity to produce recurrent feedback that involves tightly focused excitation of a small column of neighboring tectal neurons, together with global inhibition of distant tectal neurons.

Citizendium, the Citizens' Compendium - Recent changes [en] 2009

The parabigeminal nucleus plays a very important role in tectal function that will be described below.

Citizendium, the Citizens' Compendium - Recent changes [en] 2009

The optic tectum is closely associated with an adjoining structure called nucleus isthmii, which has drawn great interest recently because of new evidence that it makes a very important contribution to tectal function.

Citizendium, the Citizens' Compendium - Recent changes [en] 2009

The general function of the tectal system is to direct behavioral responses toward specific points in egocentric ( "body-centered") space.

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Visual input from the retina, or "command" input from the cerebral cortex, create a "bump" of activity in the tectal map, which if strong enough induces a saccadic eye movement.

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These observations prompted us to replace the eye field with EFTF-expressing pluripotent cells to ask if the induced retinal cells could generate a normal eye and if induced retinal ganglion cells would extend axons to and synapse with their normal tectal targets.

PLoS Biology: New Articles Andrea S. Viczian et al. 2009

In mammals this structure is more commonly called the Latin, higher hill), but even in mammals, the adjective tectal is commonly used.

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We observed YFP-labeled processes exiting the induced eye at the optic nerve head that followed the expected trajectory of RGC axons to their tectal targets (

PLoS Biology: New Articles Andrea S. Viczian et al. 2009