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Diagnostic overshadowing is the attribution of a person's symptoms to a psychiatric problem when such symptoms actually suggest a comorbid condition. [1] Diagnostic overshadowing occurs when a healthcare professional assumes that a patient's complaint is due to their disability or coexisting mental health condition rather than fully exploring the cause of the patient's symptoms.
The first symptoms are often mistakenly attributed to aging or stress. [34] Detailed neuropsychological testing can reveal mild cognitive difficulties up to eight years before a person fulfills the clinical criteria for diagnosis of Alzheimer's disease. [35] These early symptoms can affect the most complex activities of daily living. [36]
Signs and symptoms are classified into three groups based on the affected functions of the frontal and temporal lobes: [8] These are behavioural variant frontotemporal dementia, semantic dementia, and progressive nonfluent aphasia. An overlap between symptoms can occur as the disease progresses and spreads through the brain regions. [14]
A dementia diagnosis is made after cognitive decline progresses to a point of interfering with normal daily activities, or social or occupational function. [25] While dementia is an essential feature of DLB, it does not always appear early on, and is more likely to be present as the condition progresses. [25] [26]
The person's speech seems to indicate that their attention to their own speech has perhaps in some way been overcome during the occurrence of cognition whilst speaking, causing the vocalized content to follow thought that is apparently without reference to the original idea or question; or the person's speech is considered evasive in that the ...
Mild cognitive impairment (MCI) is a diagnosis that reflects an intermediate stage of cognitive impairment that is often, but not always, a transitional phase from cognitive changes in normal aging to those typically found in dementia, [1] especially dementia due to Alzheimer's disease (Alzheimer's dementia). [2]