Journal
NEUROSCIENCE LETTERS
Volume 290, Issue 3, Pages 181-184Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(00)01350-1
Keywords
timing; synchronization; perception-action coupling; coordination
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Previous research revealed the existence of coupling mechanisms (e.g. iso-directionality) at the level of perception and action. The present experiment investigated how the strength of the perception-action coupling affected synchronization performance. Arm movements were to be synchronized with a moving light that traveled back and forth from the left to the right side of a runway. Four experimental conditions were administered representing the orthogonal combination of two viewing conditions (intermittent vs. continuous) and two synchronization modes (in-phase, i.e. arm moving in the same direction as the light vs, anti-phase, i.e. arm moving in the opposite direction). Performance outcome measures, movement kinematics, and relative phase were used to examine the data. The results revealed a better synchronization performance when the arm and light traveled in the same direction (iso-directionality) during the continuous viewing condition. Apparently, the strength of the perception-action coupling has a severe impact on the quality of the synchronization of an arm movement to an external event. (C) 2000 Published by Elsevier Science Ireland Ltd.
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