Temprado Jean Jacques, Laurent Michel
Faculty of Sport Sciences, University of the Mediterranean and CNRS, 163 Avenue de Luminy, case postale BP 910, 13009 Marseille, France.
Acta Psychol (Amst). 2004 Jan;115(1):1-16. doi: 10.1016/j.actpsy.2003.09.002.
This study addressed the issue of intentional stabilization of between-persons coordination patterns (in-phase/isodirectional and anti-phase/non-isodirectional) and the attentional cost incurred by the nervous system in maintaining and further stabilizing these coordination patterns. Five pairs of participants performed in-phase and anti-phase interpersonal coordination patterns in dual-task conditions (coordination+RT task). Results showed that: (1) isodirectional pattern (in-phase) was more stable than non-isodirectional pattern (anti-phase), (2) both iso- and non-isodirectional pattern were stabilized intentionally, (3) RT was lower for the isodirectional pattern (i.e., the most stable), and (4) attentional manipulation led to a trade-off between pattern stability and RT performance. These results suggest that performing between-persons coordination patterns incurs a central cost that depends on the coupling strength between the limbs. These findings are consistent with the previous studies in intrapersonal coordination.
本研究探讨了人际协调模式（同相/同向和反相/非同向）的有意稳定问题，以及神经系统在维持和进一步稳定这些协调模式时产生的注意力成本。五对参与者在双任务条件下（协调+反应时任务）执行同相和反相人际协调模式。结果表明：（1）同向模式（同相）比非同向模式（反相）更稳定；（2）同向和非同向模式均被有意稳定；（3）同向模式（即最稳定的模式）的反应时更低；（4）注意力操纵导致模式稳定性和反应时表现之间的权衡。这些结果表明，执行人际协调模式会产生一种中枢成本，该成本取决于肢体之间的耦合强度。这些发现与先前关于人际内协调的研究一致。
