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.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Tuller B,Kelso JAdoi
10.1007/BF00247936subject
Has Abstractpub_date
1989-01-01 00:00:00pages
306-16issue
2eissn
0014-4819issn
1432-1106journal_volume
75pub_type
杂志文章abstract::Extracellular recordings were obtained from inferior olivary neurones of the rat. The responses of fifty neurones evoked by electrical stimulation of a branch of the trigeminal nerve were recorded. Maxillary nerve stimulation was most effective. The response was characterized by an early discharge (single spike and wa...
journal_title:Experimental brain research
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journal_title:Experimental brain research
pub_type: 杂志文章
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journal_title:Experimental brain research
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journal_title:Experimental brain research
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