Depending what part of brain this occurs in it will affect the way an individual thinks, remembers, walks and communicates. There is a range of causes of dementia here are son of them: • Alzheimer’s disease is the most common cause of dementia. It is caused by nerves cells dying in certain parts of the brain and the connection between affected nerve cells deteriorates. As dementia progresses it spreads and affects other parts of the brain. The cause of brain cells dying and deterioration of the connectors is not fully known yet.
Outcome 1 Understanding the process and experience of dementia 1.1 Alzheimers is the most common cause of dementia. The chemistry and structures of the brain change leading to brain cells dying during the course of the disease. Vascular dementia can occur after a stroke, or over time through many small strokes, the oxygen to the brain fails and many brain cells die. Fronto-temporal dementia is damage usually in the front part of the brain. Behaviour and personality are affected more than the memory.
These diseases cause the brain cells degenerate and die more quickly than the normal ageing process. This leads to a decline in a person's mental and physical abilities. Vascular dementia is caused when the blood flow is restricted or stopped, the brain cells will begin to die, resulting in brain damage. The vessels narrow when fatty deposits build up on the blood vessel walls, restricting the flow of blood. This can be more common in people who have high blood pressure, type 1 diabetes and those who smoke.
Huntington’s disease is an inherited, disorder that may sometimes be hard to distinguish from Alzheimer’s. Personality changes and disorientation often occur before memory loss. Normal pressure hydrocephalus (NPH) is caused by a buildup of fluid progressive disorder that causes irregular movements of the arms, legs and facial muscles, personality changes and a decline in the ability to think clearly. Creutzfeldt-Jakob disease (CJD) in the brain. The cause of most cases is unknown.
Beta amyloid is similar to cholesterol and is essential for the brain but an excessive amount inhibits proper brain function. In result recent research suggest that the cerebral cortex, which process visual and spatial information is damage in Alzheimer’s disease patients brains. In addition, areas of the brain, important for memory such as the basal forebrain and hippocampus are affected .As well as decrease level of the neurotransmitter acetylcholine. In the early stage of dementia patient experience memory impairment, lapse in judgment and little change in personality .as the disease progresses, memory and language problem worsen and patient begin to have difficulty performing activities of daily living such as remembering to feed themselves and bath etc….during the last stage of the disease patient begin to lose motor functions and eventually lose the ability to recognize family member and to
The cells eventually die and this means that information cannot be recalled or assimilated. As Alzheimer’s disease progressively affects different areas of the brain, certain functions or abilities are lost. Vascular dementia Vascular dementia is the broad term for dementia associated with problems of circulation of blood to the brain. It is the second most common form of dementia. There are a number of different types of vascular dementia.
1. UNDERSTAND THE NEUROLOGY OF DEMENTIA 1.1 Describe a range of causes of dementia syndrome Dementia syndrome is caused by damage to the brain cells; this damage interferes with the ability of brain cells to communicate each other. The most common causes of dementia are called neurodegenerative diseases, and include Alzheimer’s disease, frontotemporal dementia, and dementia with Lewy bodies. When brain cells can no longer communicate normally, thinking, behaviour and feelings can be affected. Dementia is an umbrella term for number of diseases; "over 130 are known today" that affect the memory, behaviour, and motor skills.
How fast dementia progresses will depend on the individual person and what type of dementia they have. Each person is unique and will experience dementia in their own way. 2) Describe the key functions of the brain that are affected by dementia: The key functions that are affected by dementia are: * Temporal Lobe – Responsible for vision, memory, language, hearing and learning. * Frontal Lobe – Responsible for decision making, problem solving, control behaviour and emotions. * Parietal Lobe – Responsible for sensory information from the body, also where letters are formed, putting things in order and spatial awareness.
Explain what is meant by the term ‘dementia’ Dementia is a word that describes a set of symptoms that may include memory loss and difficulties with thinking, problem solving or language. This is caused by a specific disease such as a stroke or Alzheimers which damages brain cells and affects people of any age. Describe the key functions of the brain that are affected by dementia. Produce a diagram of the human brain and identify the key areas of the brain and their function. Using a different colour pen indicate where dementia effects the brain.
There are different types of dementia. Dementing disorders can be classified in many different ways. These classification schemes attempt to group disorders that have particular features in common, such as whether they are progressive or what parts of the brain are affected. Dementia is diagnosed when two or more brain functions - such as memory, language skills, perception, or cognitive skills including reasoning and judgment - are significantly impaired without loss of consciousness. Dementia is a progressing disease that gets worst with time, for some patients it might take a while but