1. Lenny exhibited symptoms like catatonia as a child and adult, while Lucy showed catatonic symptoms. Their symptoms resembled those of schizophrenia. 2. Dr. Sayer's "will theory" suggested patients' reactions to a ball related to their will, linking to some schizophrenic patients' will. Various stimuli like music could reach the patients. 3. The patients were diagnosed with "atypical schizophrenia" but their disorder was actually caused by encephalitis lethargica or "sleepy sickness", an infectious disease.