A computer system for event related brain potentials

The ability to generate and present complex stimulus patterns to subjects is the primary task in event related brain potential experiments. The system performing this task must also convert the analog signals to digital form and monitor subject responses. A high degree of flexibility as to the type and time of presentation of the stimuli is desirable. The authors describe a computer system for performing ERP type experiments. The system uses a PC compatible equipped with a DSP processor and a high performance analog to digital subsystem