Abstract
The clinical utility of the Behavioral Dyscontrol Scale (BDS) was compared to that of verbal fluency, the Trail Making Test, and the Stroop Color-Word Test, as well as measures of processing speed/cognitive efficiency and manual dexterity. The ability of these measures to classify 49 TBI patients into frontal versus nonfrontal and mild to moderate versus severe groups was examined. The results showed that the Fluid Intelligence Factor of the BDS improved classifications above and beyond traditional executive measures, but was particularly successful at classifying patients who sustained mild injuries. In contrast, traditional executive instruments were successful at lesion location classifications only among the patients with severe injuries. Severity classifications were successful both for traditional measures of processing speed/cognitive efficiency and for the Motor Programming Factor of the BDS, but only among patients with nonfrontal injuries. These results demonstrate that severity of injury may be an important moderator of tests’ sensitivity to frontal lobe involvement.
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