Reliability and upper normal variability limits of pattern reversal visual evoked potential parameters. |
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Authors: | A Romani R Bergamaschi M Versino A Zilioli R Callieco V Cosi |
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Institution: | Istituto Neurologico C. Mondino, Università di Pavia. |
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Abstract: | Twenty healthy volunteers aged 21-48 years (10 males, 10 females) were submitted to pattern reversal visual evoked potentials with 15' and 30' checks. The recordings were repeated after 7 days to assess reliability and upper normal variability limits of the following parameters: latencies of N70, P100, N140 and peak-to peak amplitudes of N70-P100, P100-N140. Reliability was tested with intraclass correlation coefficient, which was excellent or good for all parameters. Test-retest variability limits were computed with = 0.01 for absolute latency differences and relative amplitude differences. |
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