Apr 6, 2014
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A primitive REFLEX ACTION occurring in newly born infants in response to a sudden movement or noise. Also known as the startle reflex, the baby will throw its arms and legs wide and stiffen its body. This is followed by flexion of the arms and legs. The reflex disappears by four months; its persistence suggests a possible neurological condition such as CEREBRAL PALSY.

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Medical Dictionary

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