Reflexes: Abnormal Findings

Pathological reflexes

Video: frontal release signs- snout, root, palmomental

Description: These patterned behavior reflexes appear when there is damage to the frontal lobes, which normally inhibits these primitive reflexes.

1. A snout reflex occurs when a tongue blade is pressed on the lips and there is pouting of the lips.

2. A root reflex occurs when gently stroking the lateral upper lip causes the mouth to moves toward the stimuli.

3. A palmomental reflex occurs when stroking the palm of the hand causes the ipsilateral mentalis muscle of the lower lip to contract.

Clck the play button to watch the video

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