There are many things that can attribute to the individual’s condition that may not be to do with the progression of the dementia. These can be from medication changes, dietary to the environment around them. Signs of dementia can be seen when an individual has illnesses that are not anything to do with the dementia. Having a UTI can cause the individual to be confused, lose their appetite, motor skills such as balance. Having an infection in the inner ear can cause tinnitus and hearing loss these also will affect the individuals balance. If the individual is suffering from depression it can show as the person not taking care of themselves, loss of appetite.
How the individual reacts to the situation depends on which part of the individuals brain has been affected. If the individual has a brain injury this could be from a stroke or a brain tumour the medication given can cause a significant amount of memory loss. If an individual is stressed it also can cause the brain to want to shut out or switch off what is causing the stress. This can cause memory loss.