In some vertebrates, including fish and birds, the tectum is one of the largest components of the brain.
22.
Information from multiple types of cues is used to create the map of elevation and azimuth in the optic tectum.
23.
These findings were interpreted as consistent with the idea that the tectum generates goal-directed locomotion in the lamprey.
24.
The rest of the processing is similar to that of the visual sense and, thus, involves the optic tectum.
25.
Other selective neurons observed in the optic tectum include widefield arousal neurons, binocular neurons, and approach-sensitive neurons.
26.
As illustrated in the adjoining diagram, connections between the three areas tectum, Ipc, and Imc are topographic.
27.
Walls ( spirotheca ) are composed of an outer tectum and inner alveolar keriotheca and are thin in relation to the size of the test.
28.
In the tectum, the cholinergic inputs from Ipc ramify to give rise to terminals that extend across an entire column, from top to bottom.
29.
In combination with additional projection neurons, prey-selective cells contribute to the ability of the tectum to initiate orienting behavior and snapping, respectively.
30.
Tectum is the thin, dark, dense outer layer of the spirotheca, Keriotheca is the thicker, honeycomb-like alveolar, inner layer.
