Task-related changes in aperiodic activity are related to visual working memory capacity independent of event-related potentials and alpha oscillations.

ABSTRACT: Research using electroencephalography (EEG) has shown that individual differences in visual working memory capacity are related to slow-wave event-related potentials (ERPs) and suppression of alpha-band oscillatory power during the delay period of memory tasks. However, recent evidence suggests that changes in non-oscillatory (aperiodic) features of the EEG signal are related to working memory performance. We assessed several features of task-related changes in aperiodic activity including its spatial distribution, the effect of memory load, and the relationships between aperiodic activity, memory capacity, slow-wave ERPs, and alpha suppression. Eighty-four healthy individuals performed a continuous recall working memory (WM) task consisting of 2, 4 or 6 coloured squares while EEG was reco

SUBMITTER: Virtue-Griffiths S 

PROVIDER: S-EPMC12451300 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature