“…Brain-injured patients with focal lesions of the dominant hemisphere were more easily picked up by the use of the index than were those with nondominant lesions. On the basis of several studies and a comparison of brain-injured and braindiseased patients, Allen (7,8,9,10,11) suggested a modification of the index, but other studies have provided data which suggest that this modification is not significantly more discriminating than the original (4,47,230). Other attempts at developing deterioration indices (138,227) have been evaluated by Gutman (110), who found that a rather complex method developed by Hewson (138) agreed fairly well with clinical diagnoses of brain damage.…”