Abstract
Previous studies have suggested that the left and right hands have different specialties for motor control that can be represented as two agents in the brain. This study examined how coordinated movements are performed during bimanual reaching tasks to highlight differences in the characteristics of the hands. We examined motor movement accuracy, reaction time, and movement time in right-handed subjects performing a three-dimensional motor control task (visually guided reaching). In the no-visual-feedback condition, right-hand movement had lower accuracy and a shorter reaction time than did left-hand movement, whereas bimanual movement had the longest reaction time, but the best accuracy. This suggests that the two hands have different internal models and specialties: closed-loop control for the right hand and open-loop control for the left hand. Consequently, during bimanual movements, both models might be used, creating better control and planning (or prediction), but requiring more computation time compared to the use of one hand only.
| Original language | English |
|---|---|
| Article number | e10086 |
| Journal | PLoS One |
| Volume | 5 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Medicine(all)
Cite this
Two agents in the brain : Motor control of unimanual and bimanual reaching movements. / Asai, Tomohisa; Sugimori, Eriko; Tanno, Yoshihiko.
In: PLoS One, Vol. 5, No. 4, e10086, 2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Two agents in the brain
T2 - Motor control of unimanual and bimanual reaching movements
AU - Asai, Tomohisa
AU - Sugimori, Eriko
AU - Tanno, Yoshihiko
PY - 2010
Y1 - 2010
N2 - Previous studies have suggested that the left and right hands have different specialties for motor control that can be represented as two agents in the brain. This study examined how coordinated movements are performed during bimanual reaching tasks to highlight differences in the characteristics of the hands. We examined motor movement accuracy, reaction time, and movement time in right-handed subjects performing a three-dimensional motor control task (visually guided reaching). In the no-visual-feedback condition, right-hand movement had lower accuracy and a shorter reaction time than did left-hand movement, whereas bimanual movement had the longest reaction time, but the best accuracy. This suggests that the two hands have different internal models and specialties: closed-loop control for the right hand and open-loop control for the left hand. Consequently, during bimanual movements, both models might be used, creating better control and planning (or prediction), but requiring more computation time compared to the use of one hand only.
AB - Previous studies have suggested that the left and right hands have different specialties for motor control that can be represented as two agents in the brain. This study examined how coordinated movements are performed during bimanual reaching tasks to highlight differences in the characteristics of the hands. We examined motor movement accuracy, reaction time, and movement time in right-handed subjects performing a three-dimensional motor control task (visually guided reaching). In the no-visual-feedback condition, right-hand movement had lower accuracy and a shorter reaction time than did left-hand movement, whereas bimanual movement had the longest reaction time, but the best accuracy. This suggests that the two hands have different internal models and specialties: closed-loop control for the right hand and open-loop control for the left hand. Consequently, during bimanual movements, both models might be used, creating better control and planning (or prediction), but requiring more computation time compared to the use of one hand only.
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UR - http://www.scopus.com/inward/citedby.url?scp=77956312546&partnerID=8YFLogxK
U2 - 10.1371/journal.pone.0010086
DO - 10.1371/journal.pone.0010086
M3 - Article
C2 - 20386749
AN - SCOPUS:77956312546
VL - 5
JO - PLoS One
JF - PLoS One
SN - 1932-6203
IS - 4
M1 - e10086
ER -