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Performance variation in motor imagery brain-computer interface: a brief review.

Minkyu Ahn1, Sung Chan Jun2

  • 1Department of Neuroscience, Brown University, Providence, RI 02912, United States.

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Summary

Brain-computer interface (BCI) performance varies due to underdeveloped brain networks and psychological states. Addressing these factors is key to improving BCI reliability for motor imagery tasks.

Keywords:
BCI-illiteracyBrain–computer interfaceMotor imageryPerformance variationPrediction

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Human-Computer Interaction

Background:

  • Brain-computer interface (BCI) technology shows significant progress but suffers from performance variability across and within subjects.
  • This unreliability hinders the widespread adoption and effectiveness of BCI systems.
  • Understanding the root causes of performance variation is crucial for developing more stable and dependable BCI.

Purpose of the Study:

  • To review recent findings on performance variation in motor imagery-based BCI.
  • To identify factors contributing to inter- and intra-subject variability.
  • To propose strategies for enhancing BCI reliability.

Main Methods:

  • Review of recent scientific literature on motor imagery-based BCI.
  • Analysis of studies investigating performance differences and influencing factors.
  • Synthesis of findings related to neural network development and psychological/physiological states.

Main Results:

  • Low-performing individuals in motor imagery BCI exhibit less developed neural networks, limiting their imagery capabilities.
  • Psychological and physiological states significantly impact BCI performance consistency within individuals.
  • Existing BCI systems face challenges due to these inherent performance variations.

Conclusions:

  • Performance variation in BCI is linked to neural network development and individual states.
  • Strategies addressing these factors can improve BCI reliability.
  • Further research is needed to overcome current limitations and explore future opportunities in BCI development.