Intentional switching between behavioral patterns of homologous and nonhomologous effector combinations

Author(s): Swinnen, S. P.

Journal/Book: J Exp Psychol Hum Percep Perf. 1999; 25: 750 First St NE, Washington, DC 20002-4242, USA. Amer Psychological Assoc. 1253-1267.

Abstract: Intentional switching between preferred coordination modes (Experiment 1) and between isofrequency and multifrequency conditions (Experiments 2 and 3) was compared across different effector combinations. Experiment 1 showed that homologous limbs switched faster toward the in-phase and anti-phase mode than nonhomologous limbs, supporting their distinct degree of coordinative stability during 1:1 synchronization. Experiments 2 and 3 revealed that switching time between isofrequency and multifrequency conditions depended on the am-activeness of both coordination dynamics associated with the combination of segments involved. These results are consistent with the unique prediction derived from dynamic pattern approach in which the differential stability of the coordination modes determines the switching time.

Note: Article Serrien DJ, Inselspital Bern, Lab Motor Syst, Dept Neurol, BHH M129, CH-3010 Bern, SWITZERLAND

Keyword(s): MOVEMENT PATTERNS; RHYTHMIC MOVEMENT; MULTIFREQUENCY COORDINATION; INTERLIMB COORDINATION; BIMANUAL COORDINATION; DYNAMICS; PHASE; CONSTRAINTS; SYMMETRY; ORGANIZATION

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