Sex differences in patterns of hemispheric cerebral metabolism: a multiple regression/discriminant analysis of positron emission tomographic data.
Int J Neurosci
; 81(1-2): 1-20, 1995 Mar.
Article
in En
| MEDLINE
| ID: mdl-7775064
ABSTRACT
Sex differences in brain hemispheric structure and function have been reported, and sex-related differences in hemispheric interregional correlations were reported in a prior analysis of resting PET glucose metabolic (rCMRglc) data. To explore further the effect of sex on patterns of hemispheric brain functional interactions, we applied a multiple regression/discriminant analysis to resting rCMRglc PET data from young normal men and women to test two hypotheses (1) women have stronger between-hemisphere functional interactions; (2) men have stronger within-hemisphere functional interactions. Two separate discriminant functions based on these hypotheses distinguished men and women the first reflected rCMRglc interdependencies between hemispheres and correctly classified all women and 94% of the men; the second reflected rCMRglc interdependencies within the left hemisphere and correctly classified 82% of the women and 88% of the men. Because the discriminant functions successfully distinguished men and women, these results provide support for both hypotheses.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain
/
Brain Mapping
/
Tomography, Emission-Computed
/
Discriminant Analysis
/
Sex Characteristics
/
Functional Laterality
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Int J Neurosci
Year:
1995
Document type:
Article
Affiliation country:
United States