Corticomuscular coherence analysis on the static and dynamic tasks of hand movement

Author(s):  
Anshuang Fu ◽  
Rui Xu ◽  
Feng He ◽  
Hongzhi Qi ◽  
Lixin Zhang ◽  
...  
2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Xinxin Lou ◽  
Siyuan Xiao ◽  
Yu Qi ◽  
Xiaoling Hu ◽  
Yiwen Wang ◽  
...  

Active rehabilitation involves patient’s voluntary thoughts as the control signals of restore device to assist stroke rehabilitation. Although restoration of hand opening stands importantly in patient’s daily life, it is difficult to distinguish the voluntary finger extension from thumb adduction and finger flexion using stroke patients’ electroencephalography (EMG) on single muscle activity. We propose to implement corticomuscular coherence analysis on electroencephalography (EEG) and EMG signals on Extensor Digitorum to extract their intention involved in hand opening. EEG and EMG signals of 8 subjects are simultaneously collected when executing 4 hand movement tasks (finger extension, thumb adduction, finger flexion, and rest). We explore the spatial and temporal distribution of the coherence and observe statistically significant corticomuscular coherence appearing at left motor cortical area and different patterns within beta frequency range for 4 movement tasks. Linear discriminate analysis is applied on the coherence pattern to distinguish finger extension from thumb adduction, finger flexion, and rest. The classification results are greater than those by EEG only. The results indicate the possibility to detect voluntary hand opening based on coherence analysis between single muscle EMG signal and single EEG channel located in motor cortical area, which potentially helps active hand rehabilitation for stroke patients.


2007 ◽  
Vol 118 (9) ◽  
pp. e197-e198
Author(s):  
J. Ushiba ◽  
Y. Masakado ◽  
M. Yoshihira ◽  
Y. Takahashi ◽  
T. Ohta ◽  
...  

2012 ◽  
Vol 123 (9) ◽  
pp. e93
Author(s):  
Yoshihiro Watanabe ◽  
Junichi Ushiyama ◽  
Akio Kimura ◽  
Meigen Liu ◽  
Junichi Ushiba

2016 ◽  
Vol 5 (2) ◽  
pp. 56-69
Author(s):  
Nian Othman Sharif ◽  
Keyword(s):  

Author(s):  
Resdianto Permata Raharjo ◽  
Ahmad Sudali

This journal explains the results of cohesion and coherence analysis in the current new news discourse in Indonesia published by Republika, Thursday 16 May 2019. The research uses descriptive methods by describing and explaining the results of the analysis found in the study. This research is a type of qualitative research because the results tend to be released and descriptive. the technique used in this study is to take data, data collection is done in two ways, namely listening and taking notes. This study found the results of the use of cohesion and and the use of coherence. Cohesion is the integration between the parts that are characterized by the use of language elements. Cohesion is divided into two parts, lexical cohesion and grammatical cohesion. Grammatical cohesion includes conjunction, reference, release, substitution. Lexical cohesion includes antonyms, synonyms, repetitions, metonymy, and hypomini. Whereas, cohorence is the relationship between elements one with the other elements so that it has an integrated meaning.  


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