Feasibility of the neuropsychological spectrum in prediction of outcome following head injury.

This study provided further substantiation of the neuropsychological spectrum conceptualization (Templer, Campodonico, Trent, Spencer, & Hartlage, to appear; Templer, Spencer, & Hartlage, 1993; Templer, Campodonico, Trent, & Spencer, 1991). Two hundred and two traumatic brain injury patients were administered the Wechsler Adult Intelligence Scale-Revised, the Luria-Nebraska Neuropsychological Battery, the Wisconsin Card Sorting Test, the Booklet Category Test, and Trails A and B. The correlations between neuropsychological and intellectual tests were significantly lower than the correlations within intelligence tests and within neuropsychological tests. Neuropsychological tests predicted outcome better than intelligence tests. This was interpreted in terms of outcome for severely brain-damaged patients being more dependent upon basic neuropsychological functioning than on abstract thinking ability.