Internal Monitoring of Eye Movement in Schizophrenia

National Eye Institute

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Abstract

Both normal and schizophrenic subjects are asked to follow jumping target lights as their eye movements are monitored. The target lights are shown for brief periods and then extinguished before any eye movements are made, i.e. remembered targets. In one task a sequence of lights are shown and subjects are asked to move their eyes to the locations of the remembered sequence in the dark. In this way we are able to look for evidence of a defect in spatial location updating in subjects with schizophrenia. Two normal volunteers have been recruited and tested. Schizophrenic subjects will be recruited and tested when software problems are fixed which likely will be soon. No results have been obtained to date.