inferior colliculus

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Either of two hillock-shaped small bumps on the tectum (the roof of the midbrain), below and behind the super-ior colliculi, functioning as an intermediate nucleus for processing auditory signals before they are transmitted to the primary auditory cortex. The four colliculi are collectively called the corpora quadrigemina. inferior colliculi pl. [From Latin inferior lower+colliculus a small hill, from collis a hill]

Subjects: Psychology.

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