Characterization of cortical source generators based on electroencephalography during tonic pain.

ABSTRACT:

Objective

The aim of the present study was to characterize the cortical source generators evoked by experimental tonic pain.

Methods

Electroencephalography (EEG) was recorded on two separate days during rest and with immersion of the hand in ice water for 2 minutes (cold pressor test). Exact low-resolution brain electromagnetic tomography source localization was performed in 31 healthy volunteers to characterize the cortical source generators.

Results

Reliability was high in all eight frequency bands during rest and cold pressor conditions (intraclass coefficients =0.47-0.83 in the cingulate and insula). Tonic pain increased cortical activities in the delta (1-4 Hz), theta (4-8 Hz), beta1 (12-18 Hz), beta2 (18-24 Hz), beta3 (24-32 Hz), and gamma (32-60 Hz) bands (all

SUBMITTER: Hansen TM 

PROVIDER: S-EPMC5476635 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature