OPM-MEG reveals dynamics of beta bursts underlying attentional processes in sensory cortex.

ABSTRACT: Human brain electrophysiology is dominated by rhythmic activity-neural oscillations-which play an important role in coordinating brain function. In the somatosensory cortices, the dominant oscillations occur in the beta (13-30 Hz) band and are thought to mediate top-down inhibition of primary cortices. The non-invasive measurement of such oscillations has traditionally been made possible using either electroencephalography (EEG) or magnetoencephalography (MEG), yet both modalities have significant limitations. Here, we use a new MEG technology-based on optically pumped magnetometers (OPM-MEG)-to measure attentional modulation of beta oscillations in the somatosensory cortex. Using piezo-electric crystal stimulators, we present 'braille-like' patterns to the left and right index fingers; pa

SUBMITTER: Rivero GR 

PROVIDER: S-EPMC12365038 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature