Reflex hallucination is a morbid variety of
Reflex hallucinations,also called Synaesthesia, is the experience of a stimulus in one sense modality producing a sensory experience in another. For example, the feeling of cold in one's spine on hearing a fingernail scratch a blackboard. Reference:Fish's Clinical Psychopathology, 3rd edition, page 27.
Kinesthesia
Paresthesia
Hyperesthesia
Synaesthesia
Symptoms and signs in psychiatry and classification