TY - JOUR
T1 - Probing links between action perception and action production in Parkinson's disease using Fitts' law
AU - Sakurada, Takeshi
AU - Knoblich, Guenther
AU - Sebanz, Natalie
AU - Muramatsu, Shin ichi
AU - Hirai, Masahiro
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/3
Y1 - 2018/3
N2 - Information on how the subcortical brain encodes information required to execute actions or to evaluate others’ actions remains scanty. To clarify this link, Fitts'-law tasks for perception and execution were tested in patients with Parkinson's disease (PD). For the perception task, participants were shown apparent motion displays of a person moving their arm between two identical targets and reported whether they judged that the person could realistically move at the perceived speed without missing the targets. For the motor task, participants were required to touch the two targets as quickly and accurately as possible, similarly to the person observed in the perception task. In both tasks, the PD group exhibited, or imputed to others, significantly slower performances than those of the control group. However, in both groups, the relationships of perception and execution with task difficulty were exactly those predicted by Fitts’ law. This suggests that despite dysfunction of the subcortical region, motor simulation abilities reflected mechanisms of compensation in the PD group. Moreover, we found that patients with PD had difficulty in switching their strategy for estimating others’ actions when asked to do so.
AB - Information on how the subcortical brain encodes information required to execute actions or to evaluate others’ actions remains scanty. To clarify this link, Fitts'-law tasks for perception and execution were tested in patients with Parkinson's disease (PD). For the perception task, participants were shown apparent motion displays of a person moving their arm between two identical targets and reported whether they judged that the person could realistically move at the perceived speed without missing the targets. For the motor task, participants were required to touch the two targets as quickly and accurately as possible, similarly to the person observed in the perception task. In both tasks, the PD group exhibited, or imputed to others, significantly slower performances than those of the control group. However, in both groups, the relationships of perception and execution with task difficulty were exactly those predicted by Fitts’ law. This suggests that despite dysfunction of the subcortical region, motor simulation abilities reflected mechanisms of compensation in the PD group. Moreover, we found that patients with PD had difficulty in switching their strategy for estimating others’ actions when asked to do so.
KW - Fitts'-law
KW - Parkinson's disease
KW - Perception and action
KW - Self-other distinction
KW - Subcortical region
UR - http://www.scopus.com/inward/record.url?scp=85041518147&partnerID=8YFLogxK
U2 - 10.1016/j.neuropsychologia.2018.02.001
DO - 10.1016/j.neuropsychologia.2018.02.001
M3 - Article
C2 - 29421296
AN - SCOPUS:85041518147
SN - 0028-3932
VL - 111
SP - 201
EP - 208
JO - Neuropsychologia
JF - Neuropsychologia
ER -