Alzheimer's disease affects the brain through exponentially greater cell death and tissue loss, resulting in a decreased brain size. As a result, behavior, memory and thinking are affected. Vascular dementia is caused by blockages and breaches in the brain's blood supply that damage the brain and can be caused by any condition which results in an interruption to the blood flow to the brain, and as well as strokes, this could include diseased arteries, heart attacks, high blood pressure, raised cholesterol, diabetes, furred arteries and irregular heart rhythms. Any condition causing damage to the circulation of blood to the brain carries a risk to mental functioning. People experiencing vascular dementia will, like those with Alzheimer’s disease, have problems with learning, remembering, recognition, planning and problem solving.
Unit 33 Understand the process and experience of dementia 1. Understand the neurology of dementia 1.1Describe a range of causes of dementia syndrome There is still so much unknown about what causes dementia and the 4 main types of dementia which are Alzheimer’s, vascular dementia, dementia with lewy bodies and frontotemporal dementia. Alzheimer’s as far as we know is caused when two abnormal proteins build in the brain, they form a plaque which disrupts the way the brain and its cells work to enable them to communicate to each other. Some believe that Alzheimer’s is caused by genetic factors or lifestyle, age, downs syndrome or cardio vascular disease. Vascular dementia is caused when there is a reduction in the blood flow to the brain.
This happens when the arteries which carry oxygenated blood to the brain can't get there and the brain, or part of it, dies. Arteries carry oxygenated blood around the body and veins carry deoxygenated blood. These arteries and veins form part of your vascular system. Symptoms include problem solving difficulties, difficulties concentrating or thinking quickly, confusion. The effects of vascular dementia depend on which parts
Dementia Awareness Unit 237 Dementia is a condition which is the gradual loss of brain function, this also makes it degenerative. It can include symptoms such as memory loss, confusion, problems with speech and understanding. Dementia at the moment has no cure, as it has a number of diseases that coincide with it. Alzheimer’s is part of dementia. Functions that are affected by dementia are; Short term Memory loss, Language skills, the ability to interpret information, spatial skills, judgement and attention.
The memory impairment may result in lack of attention, forgetting language, forgetting names and identity of friends and relatives and lose of ability to solve problems. confusion another effect of dementia, and also disorientation in which the patient forgets the direction, the time (date, month and year) and everything about the self. 1.2 Describe the types of memory impairment commonly experienced by individuals with dementia: dementia is a condition of the brain which causes a
DEM-301 Understand the Process and Experience of Dementia 1.1 Describe a range of causes of dementia syndrome. Fixed cognitive impairments are due to a single incident. Traumatic brain injury may cause generalised damage to the white matter of the brain or localised damages. A brief reduction in the supply of blood and oxygen to the brain may lead to this type of dementia. A stroke or brain infection can also be the cause of dementia.
Dementia Awareness Understand what dementia is. 1) Dementia is where there is a decline of the brain and its abilities, it is caused when the brain is damaged by disease, for example, Alzheimer’s disease, damage to the brain or a series of strokes. There are several types of dementia these include, vascular, Alzheimer’s, lewy bodies, fronto-temporal. 2) Areas affected by dementia are memory loss, speed of thinking, mental agility, language, understanding and judgement. 3) Other conditions such as depression and delirium both have similar symptoms as dementia.
Neurons and synapses become damaged by dementia they may be unable to carry messages that tell a section of the brain what to do. 1.2. Describe the key functions of the brain that are affected by dementia Frontal lobe - Movement, emotional behaviour, personality, interpretation and feeling. Parietal lobe - Language, special awareness and recognition. Temporal lobe – Long term memory, speech and hearing.
It is caused by nerve cells dying in certain areas of the brain and the connections between the affected nerve cells deteriorate. As the conditions affecting only or primarily the neurons of the brain, causes gradual but irreversible loss of functions of these cells, Memory loss is one of the earliest symptoms of this disease. Vascular dementia is caused by damage to the brain through deprivation of oxygenated blood causing part or all of the affected area to die. (Series of strokes) Conditions that can cause
Generally, this type of amnesia is temporary, and gradually restoration of memory is very common. The areas of the brain that are impaired in retrograde amnesia, the hippocampus, the temporal lobe, and the prefrontal cortex, are associated with primarily declarative and episodic memory. Apparently what occurs is that the brains consolidation process is disrupted; therefore, that area of the brain loses memory of events that were not fully stored. In contrast, anterograde amnesia refers to the loss of memory from the time of the injury, or illness, forward. For example, a victim in an accident resulting in head injury may have difficulty remembering anything new.