Visual Neurons in the Superior Colliculus Discriminate Many Objects by Their Historical Values.

ABSTRACT: The superior colliculus (SC) is an important structure in the mammalian brain that orients the animal toward distinct visual events. Visually responsive neurons in SC are modulated by visual object features, including size, motion, and color. However, it remains unclear whether SC activity is modulated by non-visual object features, such as the reward value associated with the object. To address this question, three monkeys were trained (>10 days) to saccade to multiple fractal objects, half of which were consistently associated with large rewards while other half were associated with small rewards. This created historically high-valued ('good') and low-valued ('bad') objects. During the neuronal recordings from the SC, the monkeys maintained fixation at the center while the objects were f

SUBMITTER: Griggs WS 

PROVIDER: S-EPMC6004417 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature