Primate superior colliculus is causally engaged in abstract higher-order cognition.

ABSTRACT: The superior colliculus is an evolutionarily conserved midbrain region that is thought to mediate spatial orienting, including saccadic eye movements and covert spatial attention. Here, we reveal a role for the superior colliculus in higher-order cognition, independent of its role in spatial orienting. We trained rhesus macaques to perform an abstract visual categorization task that involved neither instructed eye movements nor differences in covert attention. We compared neural activity in the superior colliculus and the posterior parietal cortex, a region previously shown to causally contribute to abstract category decisions. The superior colliculus exhibits robust encoding of learned visual categories, which is stronger than in the posterior parietal cortex and arises at a similar laten

SUBMITTER: Peysakhovich B 

PROVIDER: S-EPMC12068555 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature