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Proceedings Paper

A new approach to visual system testing
Author(s): Maciej Drozd; Antoni Nowakowski
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Paper Abstract

The experimental system was constructed for development and evaluation of visual brain potentials detection algorithm. Our experimental system consists of the developed, spherical, LED based perimeter head, a portable EEG recorder and a PC as a multitask unit. The computer enables full control of perimeter stimulation as well as acquisition and analysis of recorded EEG signals, using for visual response detection the newly developed VEPDA algorithm. Application of the VEPDA algorithm, based on Independent Component Analysis, allows much faster detection of visual evoked potentials comparing to traditional trial averaging routines. Main outcomes of this new approach are high reliability, considerable shortening of the examination time as well as possibility of objective examination - even patients not able to respond consciously, as very young children or elderly and intellectually handicapped patients.

Paper Details

Date Published: 24 September 2005
PDF: 6 pages
Proc. SPIE 5959, Medical Imaging, 595910 (24 September 2005); doi: 10.1117/12.623850
Show Author Affiliations
Maciej Drozd, Gdansk Univ. of Technology (Poland)
Antoni Nowakowski, Gdansk Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5959:
Medical Imaging
Andrzej Kowalczyk; Adolf F. Fercher; Valery V. Tuchin, Editor(s)

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