perception
Hi,
Often people with dementia have very different visual perceptions and Im assuming or summising here that the carpet is perhaps very heavily patterned? Often heavily patterned things can become optical illusions, so that mum is perhaps seeing things within it, she may be seeing faces, insects or a range of other things which results in the constant picking up and fiddling, if she believes she has picked something up and put it on her clothes this may be why she is removing them. Some people with dementia also have issues with spatial awareness and determining colours, so have difficulty sitting down as they do not know where their body is in relation to objects, and if everything blends in, for example, white toilet seat in a toilet with white walls they may not pick it out easily, environment is a key factor in some of our relatives strange behaviours, just food for thought really.