Grandpa’s Imaginary Boat: Understanding Delusions in Dementia
If your grandfather with dementia thinks his bed is a boat, you’re not alone. Many families deal with similar situations. This belief is called a delusion, which is common in some types of dementia, especially Lewy body dementia[1][9].
Delusions are false beliefs that a person holds onto, even when shown evidence to the contrary. For someone with dementia, these beliefs can feel very real and convincing[1]. Your grandfather isn’t trying to be difficult or confusing – his brain is processing information differently due to the changes caused by dementia.
There are a few reasons why your grandfather might think his bed is a boat:
1. Visual hallucinations: Lewy body dementia often causes people to see things that aren’t there[13]. Your grandfather might actually be “seeing” water or other boat-like surroundings.
2. Memory and perception changes: Dementia affects how the brain processes sensory information. The feeling of lying on a bed might be misinterpreted as floating on water.
3. Past experiences: If your grandfather has fond memories of boating, his brain might be mixing up these memories with his current surroundings.
4. Disorientation: Dementia can make it hard to recognize familiar places. Your grandfather’s bedroom might not feel familiar anymore, leading his mind to create an alternative explanation.
It’s important to remember that arguing with your grandfather or trying to convince him he’s wrong usually doesn’t help. Instead, try to respond calmly and reassuringly. You might say something like, “I see you’re on a boat right now. Are you comfortable? Do you need anything?”
If the delusion is causing distress, gently redirect his attention to something else. You could talk about a pleasant memory or suggest an activity he enjoys.
Sometimes, delusions can be triggered by underlying health issues, medication side effects, or environmental factors. It’s a good idea to talk to your grandfather’s doctor about his symptoms. They might be able to adjust his treatment or suggest ways to make his environment more comfortable and less confusing.
Caring for someone with dementia can be challenging. Don’t hesitate to seek support for yourself, whether through support groups, counseling, or respite care. Remember, your grandfather’s delusions are a symptom of his condition, not a reflection on you or your care.
With patience, understanding, and the right support, you can help your grandfather feel safe and comfortable, even when his perception of reality is different from yours.
