Special Instrumentation in the Ocular Neurological and Hematology Laboratories: Visual Evoked Potential: Computer Assisted Acquisition and Processing

摘要

A system to simplify the collection and processing of averaged visual evoked potentials (AVEPs) has been developed. The overall system can be described as a “loosely-coupled” distributed processing system. The coupling between components of the system is in the form of data transfer via machine-readable magnetic storage media, i.e. flexible diskette and industry-compatible 9-track magnetic tape.A microprocessor-based system was developed to provide flexible parameterization of clinical protocols and the collection of AVEPs. Feature-detection algorithms were developed on a minicomputer system to simplify and improve the accuracy of previously used manual scoring methods. An editing system was also developed to allow operator verification and editing of the features located by the automatic system. The parameters of interest are then included in a statistical database on a large computer for further analysis.