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

Table 2

Descriptive statistics for motor-executive task performance.

	CIS (𝑛=30)	Controls (𝑛=43)
	M ± SD	M ± SD
Visuomotor learning task
Simple trials-RT (ms)**	744±264	599±137
Inhibition trials-RT (ms)**	960±254	842±205
Simple trials-% errors	2.4±3.5	3.1±4.4
Inhibition trials-% errors	6.0±5.6	6.4±6.2
Complex Decision task
Simple trials-RT (ms)	676±146	668±214
Set shifting trials-RT (ms)**	917±241	763±255
Simple trials-% errors	15.2±9.3	15.9±9.2
Set shifting trials-% errors	12.4±8.6	13.7±9.0

Group differences: *𝑃<.01, **𝑃<.001. Raw data for comparison are presented here from a subgroup of 43 controls chosen from the normative sample, matched on gender, age, education, FSIQ, and place of residence (urban versus rural) to the group of CIS patients.