Frontal hemisphere lateralization and depressive personality traits

To assess the relationship between hemispheric differences in information processing and interhemispheric asymmetries in terms of brain bioelectrical activity, we correlated scores on the MMPI Depression scale with interhemispheric asymmetry, measured as peak amplitude and latency of the P3 componen...

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Bibliographic Details
Published inPerceptual and motor skills Vol. 77; no. 3 Pt 1; p. 1035
Main Authors Biondi, M, Parise, P, Venturi, P, Riccio, L, Brunetti, G, Pancheri, P
Format Journal Article
LanguageEnglish
Published United States 01.12.1993
Subjects
Adult
Aged
Arousal - physiology
Attention - physiology
Brain Mapping
Cerebral Cortex - physiopathology
Depressive Disorder - physiopathology
Depressive Disorder - psychology
Dominance, Cerebral - physiology
Electroencephalography
Evoked Potentials, Somatosensory - physiology
Female
Frontal Lobe - physiopathology
Humans
Male
Middle Aged
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Summary:To assess the relationship between hemispheric differences in information processing and interhemispheric asymmetries in terms of brain bioelectrical activity, we correlated scores on the MMPI Depression scale with interhemispheric asymmetry, measured as peak amplitude and latency of the P3 component of somatosensory evoked potentials (SEPs) at the frontocortical region of 14 healthy unselected volunteers (8 men and 6 women) who were about to start a course in autogenic training. The sample was subdivided into two groups on the basis of the median score on the MMPI Depression scale. Subjects scoring above the median showed a right lateralization at the frontocentral region and a significantly shorter P3 latency at the right hemisphere compared to the left.
ISSN:0031-5125
DOI:10.2466/pms.1993.77.3.1035