PMID: 9644281Jun 30, 1998Paper

Bimanual circle drawing during secondary task loading

Motor Control
J J SummersA Semjen

Abstract

Seven right-handed participants performed bimanual circling movements in either a symmetrical or an asymmetrical coordination mode. Movements were paced with an auditory metronome at predetermined frequencies corresponding to transition frequency, where asymmetrical patterns became unstable, or at two-thirds transition frequency where both symmetrical and asymmetrical patterns were stable. The pacing tones were presented in either a high (1000 Hz) or low (500 Hz) pitch, and the percentage of high-pitched tones during a 20 s trial varied between 0% and 70%. Participants were instructed to count the number of high-pitched pacing tones that occurred during a trial of bimanual circling. Overall, the symmetrical pattern was more stable than the asymmetrical pattern at both frequencies. Errors on the tone-counting task were significantly higher during asymmetrical circling than symmetrical circling but only at the transition movement frequency. The results suggest that cognitive processes play a role in maintaining coordination patterns within regions of instability.

References

Mar 1, 1997·Journal of Motor Behavior·M R Walters, R G Carson

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Citations

Sep 14, 2000·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·D J SerrienG E Stelmach
May 8, 2004·Journal of Motor Behavior·Gwyn N Lewis, Winston D Byblow
Jul 8, 2005·Cognitive Science·Geraldine L PellecchiaM T Turvey
Mar 27, 2001·Journal of Motor Behavior·G L Pellecchia, M T Turvey
Aug 23, 2011·PloS One·Helene M SistiStephan P Swinnen
Jan 24, 2014·Human Brain Mapping·Elena Solesio-JofreStephan P Swinnen
May 2, 2002·Gait & Posture·Bruce AbernethyAnnaliese Plooy

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