Sensory feedback-dependent coding of arm position in local field potentials of the posterior parietal cortex.

ABSTRACT: Although multisensory integration is crucial for sensorimotor function, it is unclear how visual and proprioceptive sensory cues are combined in the brain during motor behaviors. Here we characterized the effects of multisensory interactions on local field potential (LFP) activity obtained from the superior parietal lobule (SPL) as non-human primates performed a reaching task with either unimodal (proprioceptive) or bimodal (visual-proprioceptive) sensory feedback. Based on previous analyses of spiking activity, we hypothesized that evoked LFP responses would be tuned to arm location but would be suppressed on bimodal trials, relative to unimodal trials. We also expected to see a substantial number of recording sites with enhanced beta band spectral power for only one set of feedback condi

SUBMITTER: VanGilder P 

PROVIDER: S-EPMC8079385 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature