An event-coder for evoked potential studies |
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| Authors: | E. Donchin N. Pappas |
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| Affiliation: | 1. Environmental Biology Division, Ames Research Center, Nasa, 94035, Moffett Field, California
3. Iconix Incorporated, 1175 O’Brien Drive, 94025, Menlo Park, California
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| Abstract: | A device is described which has 10 input and 2 output lines. Grounding an input causes a pulse with a specific amplitude, polarity, and duration to appear on one of the output lines. Pulse parameters can be set by front-panel controls. Thus, 10 distinct events can be coded by associating a unique pulse with each event. These pulses can be recorded on one (or two) channels of a magnetic tape recorder for subsequent processing. The use of this coder in the study of event-related potentials is described. |
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