A motor imagery (MI) based brain–computer interface (BCI) decodes the intention from electroencephalogram (EEG) of a subject and translates this into control signal. These intentions are hence classified as different cognitive tasks, e.g. left right hand movements. challenge in developing BCI is handling high dimensionality data recorded multichannel EEG signals which highly subject-specific. D...

As demonstrated by the two preceding papers (Bedrosian, 1995; Higginbotham, 1995), the appropriate selection of subjects for conducting augmentative and alternative communication (AAC) research can be complex and, in many cases, unresolved. Our intention in presenting opposing views on the use of nondisabled individuals for AAC research was to highlight issues pertinent to subject selection. As...

common spatial pattern (csp) is a method commonly used to enhance the effects of event‑related desynchronization and event‑related synchronization present in multichannel electroencephalogram‑based brain‑computer interface (bci) systems. in the present study, a novel csp sub‑band feature selection has been proposed based on the discriminative information of the features. besides, a distinction ...

Summarx. I present here a method that allows one to construct a CF grammar of a natural language that correctly accounts for verbal selection rules. This goes contrary to the prevailing opinion, following Chomsky 5, that such a construction is impossible. My method consists essentially in separating the semantic function of a selection rule, namely, the exclusion of certain noun sub-classes, fr...

Enrolling pregnant substance-using women into chemical dependence treatment continues to present a major challenge for social services and health care professionals. Recruitment problems are exacerbated further when enrollment includes participation in a clinical trial. In 1989 Washington State embarked on a 6-year research and demonstration project funded through the National Institute on Drug...