A cognitive neuroprosthetic that uses cortical stimulation for somatosensory feedback

  • Klaes C
  • Shi Y
  • Kellis S
 et al. 
  • 69


    Mendeley users who have this article in their library.
  • 21


    Citations of this article.


Objective. Present day cortical brain–machine interfaces (BMIs) have made impressive advances using decoded brain signals to control extracorporeal devices. Although BMIs are used in a closed-loop fashion, sensory feedback typically is visual only. However medical case studies have shown that the loss of somesthesis in a limb greatly reduces the agility of the limb even when visual feedback is available. Approach. To overcome this limitation, this study tested a closed-loop BMI that utilizes intracortical microstimulation to provide ‘tactile’ sensation to a non-human primate. Main result. Using stimulation electrodes in Brodmann area 1 of somatosensory cortex (BA1) and recording electrodes in the anterior intraparietal area, the parietal reach region and dorsal area 5 (area 5d), it was found that this form of feedback can be used in BMI tasks. Significance. Providing somatosensory feedback has the poyential to greatly improve the performance of cognitive neuroprostheses especially for fine control and object manipulation. Adding stimulation to a BMI system could therefore improve the quality of life for severely paralyzed patients.

Author-supplied keywords

  • brain-machine interface
  • macaque
  • microelectrodes
  • neural prosthesis
  • parietal cortex
  • somatosensory cortex
  • stimulation

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Spencer KellisUniversity of Southern California School of Medicine

  • Christian Klaes

  • Ying Shi

  • Juri Minxha

  • Boris Revechkis

  • Richard A. Andersen

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free