This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiology of Pain, Subject name: Physiology
Non - noxious stimuli perceived as pain is termed as: 
Select and explain. 
A. Allodynia, B. Hyperalgesia, C. Hyperesthesia, D. Hyperpathia
A: Allodynia
Answer: A: Allodynia 
Explanation: Terminology Sensory disturbance Allodynia Situation in which a non - painful stimulus, once perceived, in experienced as painful, even excruciating. An example is elicitation of a painful sensation by application of a vibrating tuning fork. Hyperalgesia Severe pain in response to a mildly noxious stimulus Hyperpathia Threshold for a sensory stimulus is increased and perception is delayed, but once felt, it is unduly painful. Broad term encompasses all the phenomena described by hyperesthesia, allodynia, and hyperalgesia.