Load effects on spatial working memory performance are linked to distributed alpha and beta oscillations.

ABSTRACT: Increasing spatial working memory (SWM) load is generally associated with declines in behavioral performance, but the neural correlates of load-related behavioral effects remain poorly understood. Herein, we examine the alterations in oscillatory activity that accompany such performance changes in 22 healthy adults who performed a two- and four-load SWM task during magnetoencephalography (MEG). All MEG data were transformed into the time-frequency domain and significant oscillatory responses were imaged separately per load using a beamformer. Whole-brain correlation maps were computed using the load-related beamformer difference images and load-related accuracy effects on the SWM task. The results indicated that load-related differences in left inferior frontal alpha activity during encodi

SUBMITTER: Proskovec AL 

PROVIDER: S-EPMC6865445 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature