Table 7.

Discriminant function analysis of MRI measures

Jackknifed Classification* Matrix Total Cerebellum, Brain Stem, Right Caudate, Occipital White Matter, Left Nucleus Accumbens, Left Insula	Correct Classification	Control (n = 11)	Experimental (n = 7)
Control (C) Group	72.7%	8	3
Experimental (E) Group	100%	0	7
Total	83.3%	8	10

Wilks’ Lambda = 0.269; df = 6,11; F = 4.983; p = 0.01. Jackknifed classification* efficiency is calculated by sequentially eliminating one case at a time, computing the discriminant function based on remaining subjects, and using the resultant discriminant to classify the eliminated case. Percent correct classification is based on the overall success of the total sample’s cumulative classification in this manner.