TY  - JOUR
PY  - 1991//
TI  - Patterns of neuropsychological impairment after severe blunt head injury
JO  - Journal of nervous and mental disease
A1  - Tate, R. L.
A1  - Fenelon, B.
A1  - Manning, M. L.
A1  - Hunter, Michael
SP  - 117
EP  - 126
VL  - 179
IS  - 3
N2  - A consecutive series of 100 subjects with severe blunt head injuries was followed up 6 years after trauma. Neuropsychological test performances of 82 subjects and of a noninjured control group were analyzed by two principal components analyses (PCAs). Each PCA extracted 15 factors relating to a range of cognitive impairments, as well as neuropsychological features consistent with posttraumatic personality changes. Measures identified by the PCAs were applied to 85 head-injured subjects in the series to examine the incidence of impairment in four neuropsychological areas: disorders of learning and memory, neuropsychological features consistent with posttraumatic personality change, slowness in rate of information processing, and a range of basic neuropsychological skills. Overall, impairments occurred in 70% of the series. Disorders of learning and memory were the most common type of deficit (56.5%), with disturbances in basic neuropsychological skills the least frequent (16.5%). Variability among subjects with respect to the types and combinations of neuropsychological impairments was a characteristic feature of this clinical group, but the largest proportion (one-third) demonstrated isolated impairments. The implications of the incidence and selectivity of neuropsychological impairments are discussed.<p /> <p>Language: en</p>
LA  - en
SN  - 0022-3018
UR  - http://dx.doi.org/
ID  - ref1
ER  -