Is love right? Prefrontal resting brain asymmetry is related to the affiliation motive

Autor(en): Quirin, Markus
Gruber, Thomas 
Kuhl, Julius 
Duesing, Rainer
Stichwörter: AROUSAL; BEHAVIORAL ACTIVATION; communion; CORTEX; FRONTAL EEG ASYMMETRY; HEMISPHERIC-ASYMMETRY; implicit affiliation motive; IMPLICIT MOTIVES; NEGATIVE AFFECT; Neurosciences; Neurosciences & Neurology; NOREPINEPHRINE TURNOVER; operant motives test; POWER MOTIVATION; Psychology; resting EEG alpha asymmetry; social motivation; SOCIAL MOTIVES; VARETA source localization
Erscheinungsdatum: 2013
Herausgeber: FRONTIERS MEDIA SA
Journal: FRONTIERS IN HUMAN NEUROSCIENCE
Volumen: 7
Zusammenfassung: 
Previous research on relationships between affective-motivational traits and hemispheric asymmetries in resting frontal alpha band power as measured by electroencephalography (EEG) focused on individual differences in motivational direction (approach vs. withdrawal) or behavioral activation. The present study investigated resting frontal alpha asymmetries in 72 participants as a function of individual differences in the implicit affiliation motive as measured with the operant motive test (OMT) and explored the brain source thereof. Decreased relative right frontal activity as indexed by increased alpha band power was related to low levels of the implicit affiliation motive. No relationships were found for explicit personality measures. Intracranial current density distributions of alpha based on Variable Resolution Electromagnetic Tomography (VARETA) source estimations suggests that the source of cortical alpha distribution is located within the right ventromedial prefrontal cortex (PFC). The present results are discussed with respect to differential roles of the two hemispheres in social motivation.
ISSN: 16625161
DOI: 10.3389/fnhum.2013.00902

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