The thought translation device (TTD) for completely paralyzed patients

Niels Birbaumer, Andrea Kübler, Nimr Ghanayim, Thilo Hinterberger, Jouri Perelmouter, Jochen Kaiser, Iver Iversen, Boris Kotchoubey, Nicola Neumann, Herta Flor

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)190-193
Number of pages4
JournalIEEE Transactions on Rehabilitation Engineering
Issue number2
Publication statusPublished - Jun 2000


  • Electroencephalogram (EEG)
  • Language support program
  • Locked-in
  • Operant learning
  • Slow cortical potentials (SCP's)

ASJC Scopus subject areas

  • Engineering(all)


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