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Title: Altered awareness of action in Parkinson’s disease: evaluations by explicit and implicit measures
Authors: Saito, Naho
Takahata, Keisuke
Yamakado, Hodaka  kyouindb  KAKEN_id
Sawamoto, Nobukatsu  kyouindb  KAKEN_id
Saito, Satoshi
Takahashi, Ryosuke  kyouindb  KAKEN_id
Murai, Toshiya
Takahashi, Hidehiko  kyouindb  KAKEN_id
Author's alias: 齊藤, 菜穂
山門, 穂高
澤本, 伸克
齋藤, 諭
高橋, 良輔
村井, 俊哉
高橋, 英彦
Keywords: Agency
Parkinson's disease
Issue Date: 14-Aug-2017
Publisher: Springer Nature
Journal title: Scientific Reports
Volume: 7
Thesis number: 8019
Abstract: Deficits in the integration of motor prediction and its feedback have been reported in Parkinson's disease. Conscious awareness of action is proposed to emerge under the integration of motor prediction and its feedback. Thus, it may lead to changes in the awareness of the authorship of action (in other words, the sense of agency) in Parkinson's disease. We have employed both explicit and implicit measures to assess the awareness of action in Parkinson's disease and matched controls. As an explicit measure, an action recognition task requiring explicit judgments was used. Patients showed less attribution of their movements to non-biased and angular-biased visual feedbacks. As an implicit measure, the temporal attraction between the perceived time of actions and their effects, which is known as intentional binding task, was used. While action-effect association was observed in the control group, actions were not experienced as having shifted towards their subsequent effects in the patient group. These tendencies were consistent regardless of the side of the asymmetrical motor symptoms. These results may reflect an underlying abnormality in the awareness of voluntary action in Parkinson's disease.
Rights: © The Author(s) 2017.
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
URI: http://hdl.handle.net/2433/228123
DOI(Published Version): 10.1038/s41598-017-08482-0
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