Event-related coherence during finger movement: A pilot study

Author(s): Pfurtscheller, G.

Journal/Book: Biomed Tech. 1995; 40: Markgrafenstrasse 11, W-1000 Berlin 61, Germany. Fachverlag Schiele Schon. 326-332.

Abstract: Dynamic functional coupling between contralateral sensorimotor and supplementary motor areas during unilateral finger movements is studied using event-related coherence analysis. It is demonstrated in 3 subjects that the intrinsic rhythm of the sensorimotor area (mu rhythm) is phase coupled to intrinsic rhythmic activity of the supplementary motor area during rest. With preparation and execution of discrete, unilateral finger movements, these intrinsic rhythms are desynchronised due to activation of each of the local cortical networks, and the degree of synchrony or phase consistency between these rhythms decreases.

Note: Article C Andrew, Graz Univ Technol, Ludwig Boltzmann Inst Med, Informat & Neuroinforma, Brockmanngasse 41, A-8010 Graz, Austria

Keyword(s): event-related desynchronisation; event-related coherence; functional coupling sensorimotor area; supplementary motor area; DESYNCHRONIZATION; POWER

Zurück | Weiter