Enhanced motor imagery based brain-computer interface via unilateral wrist vibrotactile stimulation

Lin Yao, Xiaokang Shu, Jianjun Meng, Dingguo Zhang, Xinjun Sheng, Xiangyang Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

It is investigated that unilateral sensory stimulation during the motor imagery period might enhance the sensory motor interaction reflected from enhanced sensorimotor rhythm, and the outcomes might be helpful for those with difficulty in producing discriminative rhythmic pattern for successful BCI practice such as hemiplegic stroke patients, amputees and widely existed 'BCI-illiteracy' users. In the present study, subjects were required to perform left and right motor imagery tasks under three different conditions, with nonstimulation in session one, only left stimulation in session two, and only right stimulation in session three. The experiment showed that subject's mental intentions can be still decoded under the sensory stimulation condition, and 4 of the 6 subjects showed a significant increase (p < 0.01) in the right stimulation condition compared to non-stimulation condition. Enhanced cortical activation as reflected from increased ERD (event related desynchronization) strength was presented in the sensory stimulation condition among majority of the subjects, whilst some subjects showed that the ERD strength was stronger when stimulation, motor imagery were on the same side compared to the different side. It is suggested that the proposed experimental paradigm can be used as a good intervention for those 'BCI-illiteracy' people and enhance the sensory motor interaction process for rehabilitation of those with motor impairment.

Original languageEnglish (US)
Title of host publication2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
Pages29-32
Number of pages4
DOIs
StatePublished - 2013
Event2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013 - San Diego, CA, United States
Duration: Nov 6 2013Nov 8 2013

Publication series

NameInternational IEEE/EMBS Conference on Neural Engineering, NER
ISSN (Print)1948-3546
ISSN (Electronic)1948-3554

Other

Other2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
CountryUnited States
CitySan Diego, CA
Period11/6/1311/8/13

Fingerprint Dive into the research topics of 'Enhanced motor imagery based brain-computer interface via unilateral wrist vibrotactile stimulation'. Together they form a unique fingerprint.

Cite this