Clinical tests of memory.

This study compared the performance of groups Alzheimer, Korsakoff, and depressed patients and a group of healthy controls at various clinical tests of memory, and wide differences were found in the discriminatory power of the different tests. In addition, the patterns of performance of the Alzheimer and Korsakoff groups differed, and to some extent this was understandable in terms of what is known about the nature of organic amnesia. Depressed patients showed relatively mild impairments, which were not correlated with the severity of their depression.