Babinski reflex is one of the normal reflexes in infants. Reflexes are responses that occur when the body receives a certain stimulus. The Babinski reflex occurs after the sole of the foot has been firmly stroked. The big toe then moves upward or toward the top surface of the foot.
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Babinski reflex is one of the normal reflexes in infants. Reflexes are responses that occur when the body receives a certain stimulus. The Babinski reflex occurs after the sole of the foot has been firmly stroked. The big toe then moves upward or toward the top surface of the foot. The other toes fan out. This reflex is normal in children up to 2 years old. It disappears as the child gets older. It may disappear as early as 12 months. When the Babinski reflex is present in a child older than 2 years or in an adult, it is often a sign of a central nervous system disorder.
The central nervous system includes the brain and spinal cord. Disorders may include:. Approach to the patient with neurologic disease. Goldman-Cecil Medicine. Philadelphia, PA: Elsevier Saunders; chap Schor NF. Neurologic evaluation. In: Kliegman RM, St. Nelson Textbook of Pediatrics. Philadelphia, PA: Elsevier; chap Sensory, motor, and reflex examination. Philadelphia, PA: Elsevier; chap 2. Editorial team. Babinski reflex. Alternative Names. Reflex - Babinski; Extensor plantar reflex; Babinski sign.
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The Chaddock reflex is a diagnostic reflex similar to the Babinski reflex. Chaddock's sign is present when stroking of the lateral malleolus causes extension of the great toe, indicating damage to the corticospinal tract. It was identified by Charles Gilbert Chaddock in From Wikipedia, the free encyclopedia.
Hoffmann's reflex Hoffmann's sign , sometimes simply " Hoffmann's ", also finger flexor reflex  is a neurological examination finding elicited by a reflex test which can help verify the presence or absence of issues arising from the corticospinal tract. It is named after neurologist Johann Hoffmann. The Hoffmann's reflex test itself involves loosely holding the middle finger and flicking the fingernail downward, allowing the middle finger to flick upward reflexively. A positive response is seen when there is flexion and adduction of the thumb on the same hand. In cerebellar diseases, the reflexes may be pendular , and muscle contraction and relaxation tend to be slow, but these are not sensitive or specific to cerebellar signs.