Citation

Tuller B, Kelso JA. Exp. Brain Res. 1989; 75(2): 306-316.

Affiliation

Center for Complex Systems, Florida Atlantic University, Boca Raton 33431.

Copyright

(Copyright © 1989, Holtzbrinck Springer Nature Publishing Group)

DOI

unavailable

PMID

2721610

Abstract

Rhythmic movement patterns between the hands in response to environmental signals are studied in normal (musicians and nonmusicians) and split-brain subjects. Only two phase-locked states - in-phase and anti-phase - are shown to be stable for all subjects. Split-brain subjects show an even greater attraction to these patterns, thus providing no support for the notion that reduced cortical interaction between the hemispheres allows for independent visuomotor control of the hands in such tasks. Moreover, differences in trajectories produced by normal individuals and those without an intact corpus callosum are remarkable. The resultant patterns of coordination afford 1) a generalization of previous results on intrisincally generated rhythmic behavior to environmentally-specified movement patterns; and 2) a discussion of neural mechanisms underlying stable phase relations.

Language: en