Research Article

Regional MRI Perfusion Measures Predict Motor/Executive Function in Patients with Clinically Isolated Syndrome

Table 3

Correlation differences between simple and inhibition trials and between simple and setshifting trials in the visuomotor and Complex Decision tasks, respectively.

Visuomotor learning task error rate RT Complex Decision task error rate RT
CBVCBFCBVCBFCBVCBFCBVCBF

Frontal-R−.34−.01−.29−.30−.39−.29−.36−.30
Frontal-L−.34−.06−.04−.05−.24−.51−.47−.44
Parietal-R−.31−.01−.14−.14−.12−.22−.31−.46
Parietal-L−.21−.07−.16−.10−.13−.44−.47−.54*
Temporal-R−.11.03−.19−.18−.03−.43−.25−.34
Temporal-L−.18−.07−.29−.31−.25−.44−.05−.01
Occipital-R−.60*−.40.21.29−.21−.33−.29−.47
Occipital-L−.61*−.44.22.23−.34−.26−.50−.67
Thalamus-R−.53*−.08−.06−.14−.39−.76**−.35−.39
Thalamus-L−.64*−.05−.10−.10−.35−.70**−.37−.34
Caudate-R−.43−.24−.05−.13−.18−.28−.58−.55*
Caudate-L−.33.06−.11−.12−.23−.60−.52−.40
Lenticular-R−.44.03−.07.01−.36−.18−.18−.22
Lenticular-L−.41−.31−.02−.04−.37−.31−.03−.12
Periventricular-R−.53*.01−.04−.07−.85**−.58−.30−.41
Periventricular-L−.56*−.04−.15−.19−.79**−.56−.28−.44
C semiovale-R−.30−.05−.22−.27−.82**−.56−.12−.32
C semiovale-L−.45.10−.22−.21−.76**−.60−.14−.34
CC genu−.11−.11−.01−.01−.04−.05−.13−.01
CC splenium.05−.16.07.05.04.04−.14−.10

 *Correlation differences associated with significant Fisher’s values using Bonferroni correction (according to the number of significant zero-order correlations in each condition). Only correlation differences that satisfy all three conditions of condition specificity (see Section 2.5) are marked with asterisks. Negative correlation differences imply greater degree of association between perfusion metrics and performance on the more demanding condition of each task.