The thought translation device (TTD) for completely paralyzed patients

IEEE Trans Rehabil Eng. 2000 Jun;8(2):190-3. doi: 10.1109/86.847812.


The thought translation device trains locked-in patients to self-regulate slow cortical potentials (SCP's) of their electroencephalogram (EEG). After operant learning of SCP self-control, patients select letters, words or pictograms in a computerized language support program. Results of five respirated, locked-in-patients are described, demonstrating the usefulness of the thought translation device as an alternative communication channel in motivated totally paralyzed patients with amyotrophic lateral sclerosis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biofeedback, Psychology / physiology
  • Cerebral Cortex / physiopathology*
  • Communication Aids for Disabled*
  • Electroencephalography / instrumentation*
  • Evoked Potentials / physiology
  • Humans
  • Motor Neuron Disease / physiopathology
  • Motor Neuron Disease / rehabilitation
  • Quadriplegia / physiopathology
  • Quadriplegia / rehabilitation*
  • Signal Processing, Computer-Assisted / instrumentation
  • Thinking / physiology*
  • User-Computer Interface*