Different criteria for defining MCI in the general population have been proposed, and several have undergone revision.6 (link) MCI criteria by Petersen et al.7 (link),8 (link) require (1) a subjective complaint of cognitive decline by the patient, preferably corroborated by a reliable source, (2) minimal effect of the decline on day-to-day functioning and the absence of dementia, and (3) evidence of cognitive abnormalities that cannot be simply attributed to age. Such evidence can be based solely on clinician judgment, although formal neuropsychological testing is deemed helpful. Specific neuropsychological tests and cut-off scores are not stated. Quantitative measurements of function and activities of daily living are not required. Categorization into single-domain, multiple-domain, amnestic, and nonamnestic subtypes is based on the results of neuropsychological testing. Proposed MCI criteria recently developed by the National Institute on Aging and the Alzheimer’s Association MCI criteria committee6 (link) and the DSM-5 Neurocognitive Disorders Work Group9 ,10 (link) would also allow cognitive decline to be detected by health care providers as an alternative to patient or informant report.