Synchronous beta rhythms of frontoparietal networks support only behaviorally relevant representations.

ABSTRACT: Categorization has been associated with distributed networks of the primate brain, including the prefrontal cortex (PFC) and posterior parietal cortex (PPC). Although category-selective spiking in PFC and PPC has been established, the frequency-dependent dynamic interactions of frontoparietal networks are largely unexplored. We trained monkeys to perform a delayed-match-to-spatial-category task while recording spikes and local field potentials from the PFC and PPC with multiple electrodes. We found category-selective beta- and delta-band synchrony between and within the areas. However, in addition to the categories, delta synchrony and spiking activity also reflected irrelevant stimulus dimensions. By contrast, beta synchrony only conveyed information about the task-relevant categories. Fu

SUBMITTER: Antzoulatos EG 

PROVIDER: S-EPMC5148609 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature