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タイトル: | Opposing history effect of preceding decision and action in the free choice of saccade direction. |
著者: | Mochizuki, Kei Funahashi, Shintaro |
著者名の別形: | 望月, 圭 船橋, 新太郎 |
発行日: | 15-Aug-2014 |
出版者: | American Physiological Society |
誌名: | Journal of neurophysiology |
巻: | 112 |
号: | 4 |
開始ページ: | 923 |
終了ページ: | 932 |
抄録: | When we act voluntarily, we make a decision to do so prior to the actual execution. However, because of the strong tie between decision and action, it has been difficult to dissociate these two processes in an animal's free behavior. In the present study, we tried to characterize the differences in these processes on the basis of their unique history effect. Using simple eye movement tasks in which the direction of a saccade was either instructed by a computer or freely chosen by the subject, we found that the preceding decision and action had different effects on the animal's subsequent behavior. While choosing a direction (previous decision) produced a positive history effect that prompted the choice of the same saccade direction, making a saccadic response to a direction (previous action) produced a negative history effect that discouraged the monkey from choosing the same direction. This result suggests that the history effect in sequential behavior reported in previous studies was a mixture of these two different components. Future studies on decision-making need to consider the importance of the distinction between decision and action in animal behavior. |
著作権等: | © 2014 the American Physiological Society This is the accepted manuscrip of the article is available at http://dx.doi.org/10.1152/jn.00846.2013. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/208398 |
DOI(出版社版): | 10.1152/jn.00846.2013 |
PubMed ID: | 24848475 |
出現コレクション: | 学術雑誌掲載論文等 |
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