Palmomental Reflex (Paperback)

High Quality Content by WIKIPEDIA articles! The palmomental reflex (PMR) is an example of a primitive reflex. As such it is present in infancy, disappears during maturation of the brain during childhood but may reappear due to processes that disrupt the normal cortical inhibitory pathways. Therefore it is an example of a frontal release sign.Marinesco and Radovici in their seminal paper hypothesize that both the afferent (receptive) and efferent (motor) arms of the reflex are on the same side (ipsilateral) to the hand stimulated; however this hypothesis remains unsubstantiated.