Lateralization of movement-related potentials and the size of corpus callosum

Using structural MRI and whole-head EEG recordings, we analyzed the correlations between the anatomical parameters of the corpus callosum and the hemispheric distribution of the cortical movement-related potentials during right finger and shoulder movements in nine right-handed men. Statistically si...

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Bibliographic Details
Published inNeuroreport Vol. 11; no. 2; p. 329
Main Authors Stancák, Jr, A, Lücking, C H, Kristeva-Feige, R
Format Journal Article
LanguageEnglish
Published England 07.02.2000
Subjects
Adult
Corpus Callosum - anatomy & histology
Corpus Callosum - physiology
Electroencephalography
Electromyography
Evoked Potentials, Motor - physiology
Fingers - innervation
Frontal Lobe - physiology
Functional Laterality - physiology
Humans
Magnetic Resonance Imaging
Male
Motor Cortex - physiology
Movement - physiology
Reference Values
Shoulder - innervation
Somatosensory Cortex - physiology
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Summary:Using structural MRI and whole-head EEG recordings, we analyzed the correlations between the anatomical parameters of the corpus callosum and the hemispheric distribution of the cortical movement-related potentials during right finger and shoulder movements in nine right-handed men. Statistically significant correlation was found only in finger movements. A relatively large genu and the anterior part of the truncus of the corpus callosum correlated with enhanced pre-movement EEG potential over the ipsilateral M1/S1 area. The lateralization of the movement-related potentials correlates with the size of those callosal regions which connect the homologous areas of the primary sensorimotor and frontal cortices.
ISSN:0959-4965
DOI:10.1097/00001756-200002070-00021