A mechanism of timing variability underlying the association between the mean and SD of asynchrony |
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| Affiliation: | 1. Department of Psychology, Sun Yat-Sen University, China;2. Laboratory for Behavioral and Regional Finance, Guangdong University of Finance, Guangzhou, China;3. Department of Psychology, Umeå University, Sweden;4. School of Psychology, Shandong Normal University, Jinan, China;5. Department of Physiology, Anhui Medical College, China;6. Department of Neurology, First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China;1. Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China;2. Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China;1. CEITEC – Central European Institute of Technology, Masaryk University, Brno, Czech Republic;2. Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic;3. 1st Department of Neurology, St. Anne’s Faculty Hospital, Masaryk University, Brno, Czech Republic;1. Department of Biology, Lund University, Sölvegatan 35, SE-223 62 Lund, Sweden;2. Department of Medical Biology, Institute of Rural Medicine, Jaczewskiego 2, 20-950 Lublin, Poland;3. Department of Biophysics and Biochemistry, Oles’ Honchar Dnepropetrovsk National University, Gagarin Ave. 72, 49050 Dnepropetrovsk, Ukraine;4. Department of Cytology, Key State Laboratory, Bogomoletz Institute of Physiology, Bogomoletz Street 4, 01024 Kiev, Ukraine;5. Department of Endocrinology, The Kielanowski Institute of Animal Physiology and Nutrition, PAS, Instytucka 3, 05-110 Jablonna, Poland |
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| Abstract: | Sensorimotor timing behaviors typically exhibit an elusive phenomenon known as the negative asynchrony. When synchronizing movements (e.g. finger taps) with an external sequence (e.g. a metronome), people’s taps precede event onsets by a few tens of milliseconds. We recently reported that asynchrony is less negative in participants with lower asynchrony variability. This indicates an association between negative asynchrony and variability of timing. Here, in 24 metronome-synchronization data sets, we modeled asynchrony series using a sensorimotor synchronization model that accounts for serial dependence of asynchronies. The results showed that the modeling well captured the negative correlation between the mean and SD of asynchrony. The finding suggests that serial dependence in asynchronies is an essential mechanism of timing variability underlying the association between the mean and SD of asynchrony. |
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| Keywords: | Asynchrony Sensorimotor Synchronization Timing Variability |
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