What is corpora quadrigemina?

The corpora quadrigemina, also known as the quadrigeminal bodies, are four rounded eminences located on the dorsal aspect of the midbrain. They are part of the tectal region of the midbrain and contain the superior and inferior colliculi, which are involved in sensory processing.

The superior colliculi are involved in visual processing and coordinating eye movements, while the inferior colliculi are involved in auditory processing and sound localization. Together, the corpora quadrigemina play a crucial role in integrating visual and auditory information to help orient and guide movements in response to sensory stimuli.

Damage to the corpora quadrigemina can result in deficits in visual and auditory processing, as well as difficulties in coordinating eye movements and responding to sensory stimuli. Lesions in this area can cause various symptoms such as vision and hearing impairments, difficulties in spatial orientation, and disturbances in motor coordination.