Induced oscillatory signaling in the beta frequency of top-down pain modulation.

ABSTRACT:

Background

Induced synchronized brain activity, particularly in the beta-frequency range, has rarely been investigated in human electrophysiological studies of attentional modulation of the perception of nociceptive stimuli.

Methods

We measured time-resolved brain responses to nociceptive stimuli in healthy subjects (final data set: n = 17) using magnetoencephalography (MEG). In addition to investigating evoked responses as previous studies, we tested whether synchronized beta activity induced by nociceptive stimuli differs between 2 attentional conditions. Subjects were presented simultaneously with 2 stimulus modalities (pain-producing intraepidermal electrical stimuli and visual stimuli) in 2 different experimental conditions, ie, "attention to pain" and "attention to col

SUBMITTER: Diers M 

PROVIDER: S-EPMC7004500 | biostudies-literature | 2020 Jan-Feb

REPOSITORIES: biostudies-literature