Sometimes, a lack of recognition of friends and family is a memory issue. A person with dementia may appear to travel back in time, reliving memories from when they were younger. They might expect grown-up children to be small again, or think their parents are still alive, or believe they’re still working, or in a relationship with a previous partner or spouse.
In other cases, the part of the brain that is responsible for recognising faces can become damaged. This is referred to as ‘prosopagnosia’ or ‘face blindness’.
If a person with dementia is failing to recognise you or others for the first time, or seems distressed in your company, there may be another underlying cause, such as an infection, constipation or a reaction to medication changes. It’s a good idea to make an appointment with their GP to rule out other causes that could be treatable.