Towards a Brain Computer Interface for Speech Perception

Inhalt:
Research on Brain Computer Interfaces (BCIs) is driven by therapies to correct disordered information exchange in the brain using neuromodulation [1, 2]. Electrocorticogra-phy and deep brain stimulation, applied to cure deceases as epilepsy, and Parkinson, pave the way to develop BCIs. To cure disordered information, the BCI must provide the correct information given by a code. The paper is focused to evaluate the strategy, to deliver the correct code to a BCI for perception. Such a BCI is needed to restore the com-munication abilities of deaf persons suffering on disor-dered information exchange. We work with the hypothesis, that the code for perception is like the code of speech production. Thus, the code can be evaluated also using an articulatory view. Further we work with the approach, that the code can be derived from the code of goal-oriented gestures. Combining the knowledge gained from new invasive measurements in the brain, we derive evidence for hypotheses on the nature of the code and its transmission scheme needed to develop a BCI for perception.