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Asymmetrical volumes of the right and left frontal and occipital regions of the human brain
Author(s) -
Weinberger Daniel R.,
Luchins Daniel J.,
Morihisa John,
Wyatt Richard Jed
Publication year - 1982
Publication title -
annals of neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.764
H-Index - 296
eISSN - 1531-8249
pISSN - 0364-5134
DOI - 10.1002/ana.410110118
Subject(s) - occipital lobe , frontal lobe , anatomy , human brain , brain size , left and right , medicine , psychology , neuroscience , magnetic resonance imaging , radiology , structural engineering , engineering
The volume of a portion of the frontal and occipital lobes was measured in 40 brains in the Yakovlev Collection. In 32 cases the volume of the right frontal lobe was larger than that of the left; in the same number of cases the left occipital lobe was larger than the right ( p < 0.01). The asymmetries existed in fetal brains as early as 20 weeks of gestation. The results confirm observations made with computed tomography and indicate that this nonrandom asymmetrical pattern is an early manifestation of human brain development.