Neurons in the upper layers of the superior colliculus have well-defined receptive fields. 神經元在上丘的上層有明確的接收區。
The central subcortical structure involved in the generation of visually guided saccadic eye movements is the superior colliculus. 中央皮質下構造牽涉到上丘中肉眼引導的跳視眼球運動的產生。