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More likely in the elderly with pre-existing declining mental functions, termed mild cognitive impairment (MCI). [13] MCI is a transitional zone between normal mental function and evident Alzheimer's disease or other forms of dementia. It is insidious, and seldom recognized, except in retrospect after affected persons are evidently demented.
Also, there is an increase of irrelevant information as one ages which can lead to an elderly person believing false information since they are often in a state of confusion. [citation needed] Episodic memory is supported by networks spanning frontal, temporal, and parietal lobes.
Elderly people often experience multiple comorbidities that may contribute to the phenomenon of sundowning syndrome through neurodegeneration. Neurological disorders: Alzheimer's disease, Parkinson's disease , Huntington's disease , Lewy body dementia , fronto-temporal dementia, subcortical dementia.
“When people worry about the normal, age-related, middle-aged pauses and ‘senior moments,’ their memory performance can worsen compared to someone who accepts these mild changes.”
A Cleveland Clinic Neuropsychologist Is Begging Older Generations to Pay Attention to This Unexpected Symptom of Brain Disease
Typically, dementia is associated with classic symptoms like confusion and memory loss. But new research finds that there could be a less obvious risk factor out there: your cholesterol levels.
The prevalence of MCI among different age groups is as follows: 6.7% for ages 60–64; 8.4% for ages 65–69, 10.1% for ages 70–74, 14.8% for ages 75–79, and 25.2% for ages 80–84. [4] After a two-year follow-up , the cumulative incidence of dementia among individuals who are over 65 years old and were diagnosed with MCI was found to be 14.9%.
It is one of the most common causes of disability among the elderly but can develop before the age of 65 when it is known as early-onset dementia or presenile dementia. [ 273 ] [ 274 ] Less than 1% of those with Alzheimer's have gene mutations that cause a much earlier development of the disease, around the age of 45, known as early-onset ...