Correlations of stress and timing in periodic tapping |
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| Institution: | 1. Research Unit Condensed Matter, Electronics and Signal Processing, Department of Physics, Faculty of Science, University of Dschang, P.O. Box 67 Dschang, Cameroon;2. L2MSP, Department of Physics, Faculty of Science, University of Dschang, P.O. Box 67 Dschang, Cameroon;1. Institute for Endocrinology and Diabetes, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany;2. German Center for Diabetes Research (DZD), Neuherberg, Germany;3. Institute of Education, Psychology and Human Movement, University of Hamburg, Von-Melle-Park 5, 20146 Hamburg, Germany;4. Department of Nutrition, School of Medicine, University of Chile, Santiago, Chile. Av. Independencia 1027, Independencia, 8380453 Santiago, Chile;5. Center of Brain, Behavior and Metabolism (CBBM), University of Luebeck, Gebäude 66, Marie-Curie-Straße, 23562 Lübeck, Germany;6. Metabolic Center St. Gallen, FriendlyDocs Ltd., St. Gallen, Switzerland |
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| Abstract: | The purpose of this study was to explore control mechanism in sequential by measuring, simultaneously successive stress and timing in peridic tapping. Stress and timing were estimated by the accelerative impulse (PAI) at an instance of tap and by interimpulse interval (IRI), respectively. Autocorrelations of PAIs and IRIs and cross-correlation between the two processes provided evidence that the tapping sequences at 250- and 300-msec intervals were temporally patterned into units of two responses; stressed and unstressed responses as well as longer and shorter IRIs alternated with each other, and the stressed responses were either preceded and followed (type I) or followed and preceded (type II) by longer and shorter IRIs, respectively. The type of pattern found during synchronization tapping was preserved during self-paced tapping followed in a sequence. The results were interpreted in terms of rhythmic organization of the sequential movements. |
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