when novel objects were present, but examined the novel and familiar objects equally, unlike undamaged rats. Thus, other brain regions are capable of noticing unfamiliarity, but the perirhinal cortex is needed to associate the feeling with a specific source.

The perirhinal cortex also receives a large dopaminergic input and signals the rewards that are associated with visual stimuli

Damage to the perirhinal cortex has been shown to cause impairment in discriminating among object concepts when there is a high degree of visual

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