Magnetoencephalography can reveal deep brain network activities linked to memory processes.

ABSTRACT: Recording from deep neural structures such as hippocampus noninvasively and yet with high temporal resolution remains a major challenge for human neuroscience. Although it has been proposed that deep neuronal activity might be recordable during cognitive tasks using magnetoencephalography (MEG), this remains to be demonstrated as the contribution of deep structures to MEG recordings may be too small to be detected or might be eclipsed by the activity of large-scale neocortical networks. In the present study, we disentangled mesial activity and large-scale networks from the MEG signals thanks to blind source separation (BSS). We then validated the MEG BSS components using intracerebral EEG signals recorded simultaneously in patients during their presurgical evaluation of epilepsy. In the ME

SUBMITTER: Lopez-Madrona VJ 

PROVIDER: S-EPMC9491290 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature