How AI helps people with dementia stay independent

Bobby Redman was diagnosed with frontotemporal dementia in 2015, after falling over frequently and having dangerous memory lapses, causing saucepans to catch fire on her cookstove and bath to overflow.

In 2020 she was advised that she needed to move into a domestic aged care home, which scared the daylights out of her.

“I had my aged care assessment, and they said, ‘Look, in all honesty, you’re too high risk living alone with the things that are happening. You’re going to end up in a hospital, or you’re going to burn the house down.'”

Redman, now 73, knew she had problems but wasn’t ready to lose her independence.

A retired psychologist, she began researching how she could live longer at home.

Two years later, she still lives independently thanks to movement sensors in her house, a personal alarm pendant, a Google Assistant (a virtual helper that relies on artificial intelligence) and a timer that turns her cooker off after 20 minutes.

Redman will speak on a panel at the International Dementia Conference on how technology and artificial intelligence can facilitate the lives of people living with the condition.

Every morning, for example, an alarm on Redman’s smartphone tells her to get into gear: “Come on, lazy bones, get out of bed,” her own voice prompts her.

“I found out that I can record my voice and use them as alarms, so I have verbal instructions,” Redman says. She uses her Google Home (a smart speaker with a voice-activated virtual helper that uses artificial intelligence) to remind her every 90 minutes to have a drink and “stretch your legs” – a euphemistic reminder to “go to the toilet”.

Redman says the prompts are ideal for people like her who live alone but would also help those with carers.

“Part of the problem is carers get tired of the constant prompting, and the people with dementia get irritated with people telling them what to do all the time. So if we tell ourselves what to do, it just makes life more pleasant for everybody, and it really does help to retain independence.”

Sensors on Redman’s walls monitor her movements and record whether she is getting out of bed later or not going to the toilet regularly. Redman analyses her own activity on an app on her phone.

“As a psychologist, I know that one of the first clues towards things going pear-shaped is when behaviour patterns start to change,” she says.

A sensor also triggers an alarm if Redman’s door is left open for longer than 10 minutes. When Redman leaves the house, she tucks a personal alarm pendant inside her bra, which tracks her movements with GPS and detects if she falls.

“If there’s a sudden jolt, they [someone from the monitoring service] actually talk to me through the pendant and says, ‘Are you OK? Have you fallen?’ If I don’t respond, they send out an alarm that goes to the police to come and check on me,” she explains.

Redman believes technology will give her more years living independently, noting: “I feel safe now, I don’t feel at risk.”

John Sutherland, the chief information officer at aged care provider HammondCare, says technology and artificial intelligence are increasingly being used to help people with dementia.

He says a smartphone app uses facial analysis and artificial intelligence to assess the level of pain experienced by people with dementia who can’t articulate what they are feeling.

“Smart sensors in the home will allow all of us to remain more independent and to stay at home for longer, which is where we typically like to stay,” says Sutherland, who will also be on the panel at the International Dementia Conference.

Meanwhile, Redman has prepared for the future by buying a robot dog, Benji. Research has found robotic pets decrease stress and anxiety in people living with dementia and reduce pain medication use.

“I don’t need it yet,” Redman says. “But I thought if I adjusted to it, when I’m sitting watching the television, I’ll put it next to me and stroke it, so that when it came to the time that I might need it, it would be familiar to me.”


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