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[Execution, assessment and improvement methods of motor imagery for brain-computer interface]. 2021

Guixin Tian, and Junjie Chen, and Peng Ding, and Anmin Gong, and Fan Wang, and Jiangong Luo, and Yiyang Dong, and Lei Zhao, and Caiping Dang, and Yunfa Fu
School of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, P.R.China.

Motor imagery (MI) is an important paradigm of driving brain computer interface (BCI). However, MI is not easy to control or acquire, and the performance of MI-BCI depends heavily on the performance of the subjects' MI. Therefore, the correct execution of MI mental activities, ability evaluation and improvement methods play important and even critical roles in the improvement and application of MI-BCI system's performance. However, in the research and development of MI-BCI, the existing researches mainly focus on the decoding algorithm of MI, but do not pay enough attention to the above three aspects of MI mental activities. In this paper, these problems of MI-BCI are discussed in detail, and it is pointed out that the subjects tend to use visual motor imagery as kinesthetic motor imagery. In the future, we need to develop some objective, quantitatively visualized MI ability evaluation methods, and develop some effective and less time-consumption training methods to improve MI ability. It is also necessary to solve the differences and commonness of MI problems between and within individuals and MI-BCI illiteracy to a certain extent.

UI MeSH Term Description Entries
D007092 Imagination A new pattern of perceptual or ideational material derived from past experience. Imaginations
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000465 Algorithms A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task. Algorithm
D062207 Brain-Computer Interfaces Instrumentation consisting of hardware and software that communicates with the BRAIN. The hardware component of the interface records brain signals, while the software component analyzes the signals and converts them into a command that controls a device or sends a feedback signal to the brain. Brain Machine Interface,Brain-Computer Interface,Brain-Machine Interfaces,Brain Computer Interface,Brain Computer Interfaces,Brain Machine Interfaces,Brain-Machine Interface,Interface, Brain Machine,Interface, Brain-Computer,Interface, Brain-Machine,Interfaces, Brain Machine,Interfaces, Brain-Computer,Interfaces, Brain-Machine,Machine Interface, Brain,Machine Interfaces, Brain
D019018 Imagery, Psychotherapy The use of mental images produced by the imagination as a form of psychotherapy. It can be classified by the modality of its content: visual, verbal, auditory, olfactory, tactile, gustatory, or kinesthetic. Common themes derive from nature imagery (e.g., forests and mountains), water imagery (e.g., brooks and oceans), travel imagery, etc. Imagery is used in the treatment of mental disorders and in helping patients cope with other diseases. Imagery often forms a part of HYPNOSIS, of AUTOGENIC TRAINING, of RELAXATION TECHNIQUES, and of BEHAVIOR THERAPY. (From Encyclopedia of Human Behavior, vol. 4, pp29-30, 1994) Directed Reverie Therapy,Guided Imagery,Imagery (Psychotherapy),Imagery Psychotherapy,Imagery, Guided,Imagery, Psychotherapeutic,Psychotherapeutic Imagery,Psychotherapy Imagery,Directed Reverie Therapies,Psychotherapy, Imagery,Reverie Therapies, Directed,Reverie Therapy, Directed,Therapies, Directed Reverie,Therapy, Directed Reverie

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