An important role of neuropsychological assessment is to identify changes or impairments in cognitive functions from previous performance following an illness or injury. Since premorbid neuropsychological data are rarely available, methods of estimating premorbid abilities are utilized.
Some neuropsychologists utilize a clinical estimation of premorbid abilities drawing on information from school, military, and work records as well as family or even self-report to provide a global impression of the individuals’ premorbid functioning. While this approach allows the neuropsychologist to incorporate much information from the individual's background and history, there is a lack of standardization to incorporate the information as well as limitations on specificity of premorbid abilities. Therefore, at best one could only conclude very general estimations of function such as above average, average, and below average.
References and Readings
- Strauss, E., Sherman, E. M. S., & Spreen, O. (2006). A compendium of neuropsychological tests: Administration, norms, and commentary (3rd ed.). New York: Oxford University Press.Google Scholar