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Hand skill asymmetry in professional musicians
L Jäncke1, G Schlaug, H Steinmetz
1Institute of General Psychology I, Heinrich-Heine-University Düsseldorf, Germany. l.jaencke@kfa-juelich.de
Brain and Cognition
|August 1, 1997
Summary
Musicians show less hand skill difference than nonmusicians due to improved left-hand ability. This reduced asymmetry in hand skills is linked to early musical training, suggesting developmental adaptation.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Human Motor Control
Background:
- Hand skill asymmetry is a key indicator of brain lateralization.
- Musical training is known to influence cognitive and motor functions.
Purpose of the Study:
- To investigate hand skill asymmetry in musicians compared to nonmusicians.
- To explore the relationship between musical training, handedness, and motor performance.
Main Methods:
- Assessed hand skill asymmetry using two handedness tasks.
- Compared consistent right-handed musicians and nonmusicians, alongside mixed-handed and consistent left-handed nonmusicians.
- Evaluated tapping performance in musicians playing keyboard versus string instruments.
Main Results:
- Musicians exhibited less hand skill asymmetry than consistent right-handed nonmusicians.
- Enhanced left-hand skill in musicians contributed to their reduced asymmetry.
- Keyboard-playing musicians showed superior tapping performance, but similar asymmetry to string players.
Conclusions:
- Musical training, especially when started early, may lead to adaptations in hand skill asymmetry.
- Performance demands interact with childhood brain maturation to influence motor lateralization in musicians.
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