Hearing loss may accelerate development of dementia. Why this occurs with dementia is not known, but it may be because auditory parts of the brain may be affected early in development of dementia, such as Alzheimer’s disease. In this study we will look at the pathology of the brains donated from people with Alzheimer’s disease and see if the hearing parts of the brain show common pathology to parts of the brain that affect memory. This will help to understand the hearing changes in Alzheimer’s disease and may help to develop interventions to prevent cognitive decline in those with hearing loss.