pseudodementia
Cognitive impairment secondary to psychiatric conditions, particularly depression, that mimics dementia but is potentially reversible.
Full Definition
Pseudodementia, also known as depression-related cognitive impairment, refers to cognitive deficits that occur in the context of psychiatric disorders, most commonly major depression, and can mimic the presentation of dementia. Unlike true dementia, pseudodementia is characterized by rapid onset, prominent mood symptoms, 'don't know' responses rather than confabulation, and potential reversibility with treatment of the underlying psychiatric condition. The term has fallen somewhat out of favor as research has shown that many cases represent comorbid depression and early dementia rather than purely functional cognitive impairment. Careful assessment is required to distinguish between these conditions, as the distinction has important treatment implications.
Usage
Usage note: Single word, no hyphen. The term is considered somewhat outdated; 'depression-related cognitive impairment' may be preferred in contemporary usage.
In Context
- "The differential diagnosis included pseudodementia given the rapid onset and prominent mood symptoms." — Neuropsychological consultation
- "Cognitive improvements following antidepressant treatment supported a pseudodementia diagnosis." — Follow-up assessment report