Interhemispheric Asymmetry and Personality Traits of Brain–Computer Interface Users in Hand Movement Imagination


Personality traits of users can affect the success in controlling brain–computer interfaces (BCIs), and the activity of right and left brain structures may differ depending on personality traits. Earlier, it was not known, how the success of BCI control with different personality traits is associated with interhemispheric asymmetry. In this work, the dependence of the success of imagination of movements, estimated by the success of recognition of EEG signals during imagination of hand movements compared to rest state, on the user’s personal characteristics was studied. It is shown that in single control of BCI by naive subjects, recognition success in imagining right-hand (RH) movements was higher in expressive sensitive extroverts, and in imagining left-hand movements (LH) it was higher in practical, reserved, skeptical, and not very sociable persons. It is suggested that this phenomenon may be based on interhemispheric differences in dopamine level and in the way of encoding movement information.

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The study was supported by the program “Fundamental Scientific Research for Long-term Development and Providing Competitive Capacity of Society and State” (topic 63.4 (0113-2019-0006)) and Basic Research Program of the Presidium of the Russian Academy of Sciences no. 1.42.

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Correspondence to E. V. Bobrova.

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Conflict of Interests. The authors declare no conflicts of interests.

Statement of compliance with standards of research involving humans as subjects. All studies were conducted according to Helsinki declaration of World Medical Association. All research subjects gave voluntary consent for participation in the study. The study is approved by the Ethical Committee of the Institute of Higher Nervous Activity and Physiology of RAS.

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Translated by A. Khaitin

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Bobrova, E.V., Reshetnikova, V.V., Vershinina, E.A. et al. Interhemispheric Asymmetry and Personality Traits of Brain–Computer Interface Users in Hand Movement Imagination. Dokl Biol Sci 495, 265–267 (2020).

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  • brain–computer interfaces
  • personality traits
  • interhemispheric asymmetry