Subcortical locus of temporal coupling in the bimanual movements of a callosotomy patient |
| |
| Affiliation: | 1. Telethon Kids Institute, University of Western Australia, Australia;2. Neurocognitive Development Unit, School of Psychology, University of Western Australia, Australia;3. School of Women''s and Infant''s Health, University of Western Australia, Australia;4. Department of Obstetrics and Gynaecology, University of Melbourne and The Royal Women''s Hospital, Victoria, Australia;1. Laboratory of Molecular Biology, Department of Molecular and Cell Biology, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan;2. Department of Obstetrics and Gynecology, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan;1. National School of Occupational Medicine, Carlos III Institute of Health, Madrid, Spain;2. Department of Physical Medicine and Rehabilitation, School of Medicine, Complutense University of Madrid, Madrid, Spain;3. Unidad de EMG y Control Motor, Servei de Neurologia, Hospital Clínico, Universidad de Barcelona, Barcelona, Spain;1. United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan;2. Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan |
| |
| Abstract: | The timing of repetitive movements was assessed in a callosotomy patient under unimanual and bimanual conditions. Similar to neurologically healthy individuals, the patient exhibited strong temporal coupling in the bimanual condition. Moreover, for both the left and right hands, within-hand temporal variability was reduced in the bimanual condition compared to the unimanual conditions. This bimanual advantage is hypothesized to reflect the temporal integration of separable timing signals, one associated with the left hand and one associated with the right hand (Helmuth, L. L., & Ivry, R. B. (1996). When two hands are better than one: Reduced timing variability during bimanual movements. Journal of Experimental Psychology: Human Perception and Performance, 2, 278–293). The fact that it persists following callosotomy is inconsistent with models that attribute bimanual coordination in these patients to the control of a single hemisphere. Rather, the results suggest that motor commands from the two hemispheres are integrated subcortically.PsychINFO Classification: 2330; 2340; 2520 |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
