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Electro-encephalogram based brain–computer interface: improved performance by mental practice and concentration skills

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Abstract

Mental imagination is the essential part of the most EEG-based communication systems. Thus, the quality of mental rehearsal, the degree of imagined effort, and mind controllability should have a major effect on the performance of electro-encephalogram (EEG) based brain-computer interface (BCI). It is now well established that mental practice using motor imagery improves motor skills. The effects of mental practice on motor skill learning are the result of practice on central motor programming. According to this view, it seems logical that mental practice should modify the neuronal activity in the primary sensorimotor areas and consequently change the performance of EEG-based BCI. For developing a practical BCI system, recognizing the resting state with eyes opened and the imagined voluntary movement is important. For this purpose, the mind should be able to focus on a single goal for a period of time, without deviation to another context. In this work, we are going to examine the role of mental practice and concentration skills on the EEG control during imaginative hand movements. The results show that the mental practice and concentration can generally improve the classification accuracy of the EEG patterns. It is found that mental training has a significant effect on the classification accuracy over the primary motor cortex and frontal area.

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Authors and Affiliations

  1. Department of Biomedical Engineering, Faculty of Electrical Engineering, Iran University of Science and Technology, Narmak, Tehran, 16844, Iran

    Babak Mahmoudi & Abbas Erfanian

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  1. Babak Mahmoudi
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  2. Abbas Erfanian
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Correspondence to Abbas Erfanian.

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Mahmoudi, B., Erfanian, A. Electro-encephalogram based brain–computer interface: improved performance by mental practice and concentration skills. Med Bio Eng Comput 44, 959–969 (2006). https://doi.org/10.1007/s11517-006-0111-8

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  • DOI: https://doi.org/10.1007/s11517-006-0111-8

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