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Prior Knowledge of Target Direction and Intended Movement Selection Improves Indirect Reaching Movement Decoding
Joint Authors
Zhang, Shaomin
Wang, Yiwen
Hao, Yaoyao
Li, Hongbao
Zheng, Xiao-xiang
Chen, Weidong
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-13
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Objective.
Previous studies have demonstrated that target direction information presented by the dorsal premotor cortex (PMd) during movement planning could be incorporated into neural decoder for achieving better decoding performance.
It is still unknown whether the neural decoder combined with only target direction could work in more complex tasks where obstacles impeded direct reaching paths.
Methods.
In this study, spike activities were collected from the PMd of two monkeys when performing a delayed obstacle-avoidance task.
We examined how target direction and intended movement selection were encoded in neuron population activities of the PMd during movement planning.
The decoding performances of movement trajectory were compared for three neural decoders with no prior knowledge, or only target direction, or both target direction and intended movement selection integrated into a mixture of trajectory model (MTM).
Results.
We found that not only target direction but also intended movement selection was presented in neural activities of the PMd during movement planning.
It was further confirmed by quantitative analysis.
Combined with prior knowledge, the trajectory decoder achieved the best performance among three decoders.
Conclusion.
Recruiting prior knowledge about target direction and intended movement selection extracted from the PMd could enhance the decoding performance of hand trajectory in indirect reaching movement.
American Psychological Association (APA)
Li, Hongbao& Hao, Yaoyao& Zhang, Shaomin& Wang, Yiwen& Chen, Weidong& Zheng, Xiao-xiang. 2017. Prior Knowledge of Target Direction and Intended Movement Selection Improves Indirect Reaching Movement Decoding. Behavioural Neurology،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1139757
Modern Language Association (MLA)
Li, Hongbao…[et al.]. Prior Knowledge of Target Direction and Intended Movement Selection Improves Indirect Reaching Movement Decoding. Behavioural Neurology No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1139757
American Medical Association (AMA)
Li, Hongbao& Hao, Yaoyao& Zhang, Shaomin& Wang, Yiwen& Chen, Weidong& Zheng, Xiao-xiang. Prior Knowledge of Target Direction and Intended Movement Selection Improves Indirect Reaching Movement Decoding. Behavioural Neurology. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1139757
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1139757