Erotomania in a brain-damaged male.

Doctors wrote up one man who got a brain injury and then believed a famous woman loved him. The belief did not go away even after he took the drug haloperidol.

The report only describes the man. It does not test any ABA treatment.

The man kept showing erotomania. Medicine alone did not stop the fixed false belief.

Falligant et al. (2021) later showed ways to track if psych meds help severe problem behavior. Their data give you tools to see when drugs work and when they do not.

Jones et al. (1992) and Weber et al. (2024) used short functional assessments to find why behavior happens. Those methods could be used after med failure, just like in this case.

Together the papers say: check function when meds fail, then add behavior plans.

If a client with brain injury still shows odd fixed beliefs after medication, do a brief functional assessment. Use the results to build a behavior plan instead of waiting for another drug change.