How are patients screened for cognitive impairment?

Updated: Dec 02, 2020
  • Author: Claudia L Reardon, MD; more...
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Screening for dementia and other cognitive impairments is increasingly important as our population ages. However, controversy exists as to who should be screened, when, where, by whom, and with what instruments. Considering the sensitivity, specificity, positive predictive value, and negative predictive value of available screening instruments, treatments available (or not) for the conditions for which patients are being screened, and risks of false positive or false negative results is important. [1, 2, 3, 4]

An image depicting temporospatial EEG characteristics can be seen below.

Cognitive decline is associated with alterations i Cognitive decline is associated with alterations in the temporospatial EEG characteristics, specifically seen as a decline in resting alpha frequency. However, these findings are non-specific, and medication effects must be ruled out.

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