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The British Journal of Psychiatry 152: 679-682 (1988)
© 1988 The Royal College of Psychiatrists

Visual evoked potentials in elderly patients with primary or multi- infarct dementia

CE Wright and PL Furlong
Department of Vision Sciences, Aston University.

Flash and pattern-reversal visual evoked potentials (VEP) were recorded in 35 elderly patients with dementia, and 19 controls of equivalent age. Dementia produced a slowing of the major positive (P2) component of the flash VEP but did not affect the latency of the flash P1 component or the P100 pattern-reversal component. This unusual type of abnormality was found in both primary and multi-infarct types of dementia, and has previously been found in primary presenile dementia. The results show that the VEP can be used for the diagnosis of multi- infarct, and primary presenile and senile dementias.




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Copyright © 1988 The Royal College of Psychiatrists.