Corpus callosum: musician and gender effects.

Abstract:

:Previously we found that musicians have significantly larger anterior corpus callosum (CC). In the current study, we intended to replicate and extend our previous results using a new and larger sample of gender-matched subjects (56 right-handed professional musicians and 56 age- and handedness-matched controls). We found a significant gender x musicianship interaction for anterior and posterior CC size; male musicians had a larger anterior CC than non-musicians, while females did not show a significant effect of musicianship. The lack of a significant effect in females may be due to a tendency for a more symmetric brain organization and a disproportionately high representation of absolute pitch (AP) musicians among females. Although a direct causal effect between musicianship and alterations in the midsagittal CC size cannot be established, it is likely that the early commencement and continuous practice of bimanual motor training serves as an external trigger that can influence midsagittal CC size through changes in the actual callosal fiber composition and in the degree of myelinization, which will have implications for interhemispheric connectivity.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Lee DJ,Chen Y,Schlaug G

doi

10.1097/00001756-200302100-00009

subject

Has Abstract

pub_date

2003-02-10 00:00:00

pages

205-9

issue

2

eissn

0959-4965

issn

1473-558X

journal_volume

14

pub_type

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