ISSN:
1573-6792
Keywords:
Event-related coherence
;
ERCoh
;
Event-related desynchronization
;
ERD
;
Finger movement
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary This article deals with the estimation of event-related coherence (ERCoh) and its application to the planning and execution of self-paced index finger movement. ERCoh estimation complements the event-related desynchronization (ERD) measurements of rhythms within the alpha band. ERCoh yields information of the functional relationships between different brain areas as a function of time. The time resolution is 125 msec. Before movement onset a contralateral ERCoh increase was found between premotor and motor areas. This coherence increase was accompanied by an ERCoh decrease in parallel to the ERD over the contralateral centro-temporal areas. During movement, the ERD became bilaterally symmetrical. Simultaneously, interhemispheric coherence between contralateral and ipsilateral sensori-motor areas increased.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01186770
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