A Portable Neurological Monitor for use in Cognitive Function Studies

The visual evoked potential (VEP) has long established itself as a useful diagnostic tool for clinical use. The VEP is typically recorded in clinical environments due to equipment and experimental set-up. An alternative is proposed in this paper, whereby a light-weight, portable neurological monitor using active dry-electrodes is proposed and VEP data compared against clinically recorded data. It has been shown that a correlation coefficient of greater than 0.8 can be achieved with this set-up, demonstrating the diagnostic benefit of the system for both remote diagnosis and neurorehabilitation.