1) explain what is meant by the term ‘dementia’

Dementia is a form of memory loss and difficulties with thinking, problem-solving or language. Dementia is caused when a disease such as Alzheimers disease damages the brain or a series of strokes and it is possible to have more than one type of dementia at the same time. Vascular dementia is the most common after Altzheimers, and dementia with lewy bodies is the 3rd most common which effects 15% of people with dementia and effects over 100,000 people in the UK.
1.2a) describe the key functions of the brain that are affected by dementia.

The key functions of the brain that are affected by dementia are the Frontal lobe (decision making, emotions and problem solving), The Parietal loble (putting things in order and spatial awareness), The Temporal lobe (hearing, our vision, our learning and memory), The Occipital lobe (processing information relating to vision), The Hippocampus (organizing emotions, storing emotions and memory forming) and the Cerebrum lobe (senses and movement, consciousness, attention, thought, attention and memory).

1.3) explain why depression, delirium and age-related memory impairment may be mistaken for dementia

It is because they share the same symptoms as dementia, depression can cause symptoms such as changes in appetite, fatigue, difficulty concentrating, slowed speech and slowed responses, hallucinations and irritability. Delirium can cause symptoms such as being withdrawn and easily distracted by things that aren’t that importat, difficulty speaking or repeating words, poor memory, poor cognitive impairment, behaviour changes, disorientation, difficulty reading or writing and difficulty understanding speech. Age related memory impairment can cause symptoms such as becoming easily distracted, forgetting names of relatives, forgetting where you left things, walking into a room and forgetting why you entered and not being able to retrieve information that you’ve just thought...