Neuropsychological assessment and EEG sleep in affective disorders.
The neuropsychological test performance of 76 hospitalized, depressed patients meeting RDC for the presence of affective disorder was assessed as part of a protocol involving amitryptyline (n = 53) or placebo (n = 23). Tests included the Trail-making Test (TMT), the Benton Visual Retention Test, and the Shipley-Hartford Scale. Clinical ratings and data concerning the characteristics of EEG sleep were also obtained. Analysis of data collected after a drug-free period of 2 weeks and again at the end of the protocol yielded the following conclusions. Base-line performance was inferior to norms for these tests, but for the TMT, scores were not as poor as that expected for brain-damaged patients. Poor performance was often associated with older age, the presence of psychotic features, and prolonged sleep latencies. Baseline Hamilton Rating Scale (HRS) was predicted best by TMT part B. However, this association was not as strong as that between HRS and poor sleep efficiency. Treatment with drug or placebo had little differential effect upon test performance over the course of the protocol. It is suggested that further research should utilize tests which have specificity in localizing cerebral lesions, so that any focal deficits in brain function in depression might be identified.[1]References
- Neuropsychological assessment and EEG sleep in affective disorders. Shipley, J.E., Kupfer, D.J., Spiker, D.G., Shaw, D.H., Coble, P.A., Neil, J.F., Cofsky, J. Biol. Psychiatry (1981) [Pubmed]
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