2018年6月
Prediction Error in the PMd As a Criterion for Biological Motion Discrimination: A Computational Account
IEEE TRANSACTIONS ON COGNITIVE AND DEVELOPMENTAL SYSTEMS
- ,
- ,
- 巻
- 10
- 号
- 2
- 開始ページ
- 237
- 終了ページ
- 249
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1109/TCDS.2017.2668446
- 出版者・発行元
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Neuroscientific studies suggest that the dorsal premotor area is activated by biological motions, and is also related to the prediction errors of observed and self-induced motions. We hypothesize that biological and nonbiological motions can be discriminated by such prediction errors. We therefore propose a model to verify this hypothesis. A neural network model is constructed that learns to predict the velocity of the self's next body movement from that of the present one and produces a smooth movement. Consequently, a property of the input sequence is represented. The trained network evaluates observed motions based on the prediction errors. If these errors are small, the movements share a representation with the self-motor property, and therefore, are regarded as biological ones. To verify our hypothesis, we examined how the network represents the biological motions. The results show that predictive learning, supported by a recurrent structure, helps to obtain the representation that discriminates between biological and nonbiological motions. Moreover, this recurrent neural network can discriminate the ankle and wrist trajectories of a walking human as biological motion, regardless of the subject's sex, or emotional state.
- リンク情報
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- DOI
- https://doi.org/10.1109/TCDS.2017.2668446
- DBLP
- https://dblp.uni-trier.de/rec/journals/tamd/KawaiNA18
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000435198600011&DestApp=WOS_CPL
- URL
- https://dblp.uni-trier.de/db/journals/tamd/tamd10.html#KawaiNA18
- ID情報
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- DOI : 10.1109/TCDS.2017.2668446
- ISSN : 2379-8920
- eISSN : 2379-8939
- DBLP ID : journals/tamd/KawaiNA18
- SCOPUS ID : 85048681305
- Web of Science ID : WOS:000435198600011