Moro reflex

The Moro reflex is an infantile reflex that develops between 28 and 32 weeks of gestation and disappears at 3–6 months of age. It is a response to a sudden loss of support and involves three distinct components:[1]

  1. spreading out the arms (abduction)
  2. pulling the arms in (adduction)
  3. crying (usually)

It is distinct from the startle response.[2] Unlike the startle response, the Moro reflex does not decrease with repeated stimulation.[3] The primary significance of the Moro reflex is in evaluating integration of the central nervous system.[3]

  1. ^ Edwards, Christopher W.; Al Khalili, Yasir (2019), "Moro Reflex", StatPearls, StatPearls Publishing, PMID 31194330, retrieved 2019-08-06
  2. ^ Fletcher, Mary Ann (1998). Physical Diagnosis in Neonatology. Philadelphia: Lippincott-Raven. p. 472. ISBN 978-0397513864. Retrieved 7 February 2013.
  3. ^ a b Suzuki, Yasuhiro; Toribe, Yasuhisa; Futagi, Yasuyuki (June 11, 2012). "The Grasp Reflex and Moro Reflex in Infants: Hierarchy of Primitive Reflex Responses". International Journal of Pediatrics. 2012: 191562. doi:10.1155/2012/191562. PMC 3384944. PMID 22778756.
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