Effect of pain perception on the heartbeat evoked potential
Copyright policy )Effect of pain perception on the heartbeat evoked potential
To investigate the effect of acute tonic pain on the heartbeat-evoked potential (HEP) and to test whether or not pain perception can be reflected by the HEP.Simultaneous electroencephalogram (EEG) and electrocardiogram (ECG) were recorded from 21 healthy young adults in three conditions: passive no-task control, no-pain control and cold pain. The HEP was obtained by using ECG R-peaks as event triggers.Prominent HEP deflection was observed in both control conditions mainly over the frontal and central locations, while it was significantly suppressed in the cold pain condition over the right-frontal, right-central and midline locations. A comparison of the data in the first and last 5 min of cold pain condition showed that lower subjective pain ratings were accompanied by higher HEP magnitudes. A correlation analysis showed that the mean HEP magnitude over the midline locations was significantly negatively correlated with subjective pain ratings.Cold pain induces significant suppression of the HEP across a number of scalp locations, and the suppression is correlated with self-report of pain.The HEP has the potential to serve as an alternative pain measure.
- National University of Singapore Singapore
- National University of Singapore Libraries Singapore
Adult, Male, Heartbeat evoked potential, 610, Brain, Pain, Electroencephalography, Pain Perception, Cold Temperature, Alternative pain measure, Electrocardiography, Heart Rate, 616, Pain perception, Humans, Female, Evoked Potentials, Interoceptive process
Adult, Male, Heartbeat evoked potential, 610, Brain, Pain, Electroencephalography, Pain Perception, Cold Temperature, Alternative pain measure, Electrocardiography, Heart Rate, 616, Pain perception, Humans, Female, Evoked Potentials, Interoceptive process
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