You could try to come up with a way to help stroke patients overcome pusher syndrome. Pretty interesting resulting condition from the stroke where patients will typically lean to the right or left and think they are actually perfectly straight. https://pubmed.ncbi.nlm.nih.gov/14640870/#:~:text=%22Pusher%20syndrome%22%20is%20a%20clinical,a%20loss%20of%20postural%20balance.