Alzheimer's disease is a brain disorder that slowly destroys memory and thinking skills and, eventually, the ability to carry out the simplest tasks. In most people with the disease — those with the late-onset type symptoms first appear in their mid-60s.
Alzheimer's disease (AD) is the main cause of dementia and accounts for two thirds of dementia syndromes in people older than 65 years. Memory impairment, especially impairment of episodic memory, is one of the first symptoms of AD.
The Mini-Cog test.
A third test, known as the Mini-Cog, takes 2 to 4 minutes to administer and involves asking patients to recall three words after drawing a picture of a clock. If a patient shows no difficulties recalling the words, it is inferred that he or she does not have dementia.
Vitamin B12 deficiency is linked to impaired cognition and memory along with a sensation of tingling and numbness, an outcome of poor myelination. Elevated methylmalonic acid and serum homocysteine levels are markers of Vitamin B12 deficiency.
Administration: The examiner reads a list of 5 words at a rate of one per second, giving the following instructions: “This is a memory test. I am going to read a list of words that you will have to remember now and later on. Listen carefully. When I am through, tell me as many words as you can remember.
If you're frequently forgetting things that you always remembered before, that can be a red flag for mental deterioration or the onset of dementia. In general, if you are worried enough to ask yourself this question, you should speak to your doctor.
You have trouble following a conversation. You find it hard to make decisions, finish a task or follow instructions. You start to have trouble finding your way around places you know well. You begin to have poor judgment.
Doctors also use brain scans to find evidence of other sources of damage, such as tumors or stroke, that may aid in diagnosis. Brain scans used to help diagnose dementia include CT, MRI, and PET scans.
Forgetfulness can arise from stress, depression, lack of sleep or thyroid problems. Other causes include side effects from certain medicines, an unhealthy diet or not having enough fluids in your body (dehydration). Taking care of these underlying causes may help resolve your memory problems.
People who use post-it notes or electronic reminders are likely to be experiencing “normal” forgetfulness. On the other hand, people who don't remember what their reminders are there for, may be displaying symptoms of dementia. Transience is when the brain forgets some memories over time.
Memory and other thinking problems have many possible causes, including depression, an infection, or medication side effects. Sometimes, the problem can be treated, and cognition improves. Other times, the problem is a brain disorder, such as Alzheimer's disease, which cannot be reversed.
Alzheimer's disease, the most common cause of dementia. Vascular dementia. Frontotemporal dementia.
The MMSE is a quick test designed to measure cognitive function in the early stages of dementia and Alzheimer's disease. There is a free version available that may be helpful for assessing your memory as well as attention, language, and motor skills.
Memory loss related to medical conditions
Tumors, blood clots, or infections in the brain. Some thyroid, kidney, or liver disorders. Drinking too much alcohol. Head injury, such as a concussion from a fall or accident.
Age-associated memory impairment is considered to be a normal part of aging. It doesn't mean you have dementia. Though you may have difficulties remembering things on occasion, like where you left your keys, a password for a website or the name of a former classmate, these are not signs you have dementia.
Functional cognitive disorder (FCD) is an under-recognised condition that is different from dementia. In FCD, cognitive difficulties with memory and thinking – particularly when the person can't maintain attention – are down to a problem with how the brain is working, rather than to loss of brain cells.
The five-minute cognitive test (FCT) was designed to capture deficits in five domains of cognitive abilities, including episodic memory, language fluency, time orientation, visuospatial function, and executive function.
Abstract. Introduction: The five-word test (5WT) is a serial verbal memory test with semantic cuing. It is proposed to rapidly evaluate memory of aging people and has previously shown its sensitivity and its specificity in identifying patients with AD.
Lewy body dementia (LBD) is a disease associated with abnormal deposits of a protein called alpha-synuclein in the brain. These deposits, called Lewy bodies, affect chemicals in the brain whose changes, in turn, can lead to problems with thinking, movement, behavior, and mood.
Researchers developed a blood test that could detect Alzheimer's disease-promoting compounds in the blood long before symptoms emerged. The findings may lead to early diagnostic tests for Alzheimer's and other neurodegenerative diseases.