A 16-year-old girl of South Asian descent presents to the PMHNP accompanied by her father. He reports that since the death of her mother months ago, his daughter has been having episodes of strange behavior. He describes these episodes as beginning with a stomach ache and dizziness. Then she behaves as though her dead mother has taken control of her body. After a few minutes, she is back to herself again. Afterward, the patient states she cannot remember anything about these episodes. Which culture-bound syndrome should the PMHNP include in the differential diagnosis?