Internal timing mechanism for real-time coordination: two types of control in synchronized tapping

  • Authors:

  • Yoshihiro Miyake;Koji Takano

  • Affiliations:

  • Tokyo Institute of Technology, Dept. of Computational Intelligence and Systems Science, Yokohama, Japan;Tokyo Institute of Technology, Dept. of Computational Intelligence and Systems Science, Yokohama, Japan

  • Venue:
  • Proceedings of the 2007 conference on Human interface: Part I
  • Year:
  • 2007

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Abstract

We clarify internal timing control mechanism in a synchronization tapping task. Synchronization error (SE) was directly controlled within 450- 1800 ms of the inter stimulus-onset interval (ISI) with our experimental method. Two types of internal phase correction mechanism became evident. The first showed a strong negative correlation between SE change and change in inter tap-onset interval (ITI), suggesting a simple negative feedback mechanism. This correlation was observed under all ISI conditions. The second type showed a larger response with a low negative correlation and was observed only with long (1200-1800 ms) ISIs. Only the second mechanism was inhibited in a dual task condition. These results suggest that there are two types of internal timing mechanism.