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. 1978 Jun;41(6):499–504. doi: 10.1136/jnnp.41.6.499

Visual evoked responses in multiple sclerosis: comparison of two methods for pattern reversal.

B Y Nilsson
PMCID: PMC493076  PMID: 671061

Abstract

Visual evoked responses have been elicited by reversal of a black and white checkerboard pattern and also by a display of light-emitting diodes (LED) generating a reversal of a pattern of illuminated red circular areas. In a control group the LED display produced responses of lower amplitude and shorter latency compared to responses to checkerboard stimulation. In patients with a definite or probable diagnosis of multiple sclerosis the stimulators were equally effective in evoking pathological responses; in patients with a possible but less certain diagnosis abnormal responses were found in a higher percentage when the LED stimulus was used. Differences in stimulus field size and in stimulus colour are discussed as possible reasons for this result.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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