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Table 2 Findings of correlation analyses between P300 variables and the interference Stroop-test performance in SCA2 patient and preclinical carriers

From: Insights into cognitive decline in spinocerebellar Ataxia type 2: a P300 event-related brain potential study

Variables SCA2 patients Preclinical carriers
Stroop interference time Stroop interference errors Stroop interference time Stroop interference errors
r p r p r p r p
V-Lat Cz 0.50 0.006 0.25 0.209 0.63 0.003 -0.13 0.582
V-Amp Cz -0.23 0.246 -0.10 0.624 -0.48 0.034 -0.03 0.890
V-Lat Pz 0.51 0.006 0.22 0.259 0.64 0.003 -0.12 0.618
V-Amp Pz -0.26 0.181 -0.13 0.500 -0.47 0.035 -0.04 0.865
A-Lat Cz 0.56 0.002 0.31 0.108 0.48 0.031 0.22 0.364
A-Amp Cz -0.38 0.046 -0.20 0.309 -0.48 0.034 -0.05 0.840
A-Lat Pz 0.61 0.001 0.32 0.094 0.19 0.414 -0.05 0.819
A-Amp Pz -0.42 0.025 -0.22 0.257 -0.17 0.477 0.25 0.284