A new study is hoped to be popular with those taking part in a test of personal budgeting this month.
Twenty areas in England have been picked to participate in an analysis of personal budgets for health, looking into the groups of patients which will gain most from them.
Phil Hope, the health minister, announced last week that the budgets are meant to give people the freedom to choose services they believe will most help either themselves or their chosen family member.
The Alzheimer's Society said that it looks forward to the results of the research, adding that it will likely provide an insight into how budgets will work on a day-to-day basis.
It continued: "It will be important that any future expansion of personalised budgets is done in a way which will ensure people with dementia are able to reap the benefits."
There are currently around 700,000 people in the UK with dementia - a figure expected to rise to one million before 2025.
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