Electrocorticographically controlled brain-computer interfaces using motor and sensory imagery in patients with temporary subdural electrode implants. Report of four cases

J Neurosurg. 2007 Mar;106(3):495-500. doi: 10.3171/jns.2007.106.3.495.

Abstract

Brain-computer interface (BCI) technology can offer individuals with severe motor disabilities greater independence and a higher quality of life. The BCI systems take recorded brain signals and translate them into real-time actions, for improved communication, movement, or perception. Four patient participants with a clinical need for intracranial electrocorticography (ECoG) participated in this study. The participants were trained over multiple sessions to use motor and/or auditory imagery to modulate their brain signals in order to control the movement of a computer cursor. Participants with electrodes over motor and/or sensory areas were able to achieve cursor control over 2 to 7 days of training. These findings indicate that sensory and other brain areas not previously considered ideal for ECoG-based control can provide additional channels of control that may be useful for a motor BCI.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Adult
  • Brain Diseases / rehabilitation*
  • Communication Aids for Disabled
  • Electrodes, Implanted
  • Electroencephalography / methods*
  • Female
  • Humans
  • Imagery, Psychotherapy / methods*
  • Male
  • Middle Aged
  • Subdural Space
  • User-Computer Interface*