Hallucinations which occur at the 'start' of sleep is :: (A) Hypnagogic hallucinations, (B) Hypnopompic hallucinations, (C) Jactatio nocturna capitis, (D) Non - specific hallucination
Answer is A. Hypnagogic hallucinations

These occur while “going” to sleep. Jactatio capitis nocturna, or rhythmic movement disorder is a neurological disorder characterized by involuntary movements, usually of head and neck, before and during the sleep.