Developmental reflexes

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Author:
BryanHimmel
ID:
180351
Filename:
Developmental reflexes
Updated:
2012-10-28 14:37:29
Tags:
Lifespan child development reflexes
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Developmental reflexes
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  1. Rooting
    • Stimulus: touch on cheek
    • Response:  Turn head to same side with open mouth
    • Age:  28 weeks gestation-3 months
    • Interferes with:  oral-motor developement
    • Development of midline head control
    • optical righting, visual tracking
    • Social interaction
  2. Plantar grasp
    • stimulus:  pressure to base of toes
    • response:  toe flexion
    • Age:  28 weeks gestation - 9 months
    • Interferes with: ability to stand with heels down
    • balance reactions in standing
    • weight shifting in standing
  3. Startle
    • Stimulus:  Sudden loud noise
    • Response:  Arms abduct with flexed arms and closed hands
    • Age:  28 weeks gestation - 5 months
    • Interferes with: sitting balance
    • protecting reactions in sitting
    • eye-hand coordination
    • visual tracking; social interaction
  4. Moro
    • Stimulus:  head dropped inches into extension
    • response:  arms abduct with fingers opened, then cross trunk; cry
    • Age:  28 weeks gestation to 5 months
    • Interferes with:  sitting balance
    • protective reactions in sitting
    • eye-hand coordination
    • visual tracking
  5. Galant
    • Stimulus:  touch to skin lateral to spine from shoulder to hip
    • response:  lateral trunk flexion to side of stimulus
    • age:  30 weeks gestation to 2 months
    • interferes with:  development of sitting balance may lead to scoliosis
  6. Positive support
    • Stimulus:  weight placed on balls of feet when upright
    • Response:  extension of trunk and legs
    • Age:  35 weeks gestation to 2 mos
    • interferes with:  standing and walking
    • balance reactions and weight shift in standing
    • can lead to plantarflexion contractures
  7. Stepping reflex
    • Stimulus:  supported upright with soles of feet on sruface
    • Response: reciprocal flexion/ extension of LEs
    • Age: 38 weeks gestation to 2 months
    • Interferes with: standing and walking
    • balance reactions and weight shift in standing; development of smooth coordinated recipocal LE movements
  8. Palmar grasp
    • Stimulus: pressure in palm on ulnar side of hand
    • Response: flexion of fingers causing strong grip
    • Age: birth to 4 mos
    • Interferes with: ability to grasp and release objects voluntarily
    • weight bearing  on open hand from propping, crawling, protective responses
  9. TLR prone
    • Stimulus: position of labyrinthe in inner ear
    • Response: in prone, body and extremities remain in flexion
    • Age: birth to 6 months
    • Interferes with: ability to initiate rolling
    • ability to perform POE in prone
  10. TLR supine
    • Stimulus: position of labyrinthe in inner ear
    • Response: in supine, body and extremitites remain in extension
    • Age: birth to 6 mos
    • Interferes with: ability to initiate rolling; ability to perform POE with extended hips; ability to flex trunk and hips to come to sitting from supine; causes full body extension interfering with sit and stand
  11. ATNR
    • Stimulus: head position, turned to one side
    • Response: arm and leg on face side extended, arm and leg on scalp side is flexed; spine convexity toward face side (fencer)
    • Age: birth to 6 mos
    • Interferes with: feeding, visual tracking, midline use of hands, bilateral hand use, rolling, development of crawling can lead to skeletal deformities (scoliosis, hip, sublaxation, hip dislocation)
  12. STNR
    • Stimulus: head position, flexion/extension
    • Response: head in flexion:  arm flex and legs extended; head in extension:  arms extend and legs flex
    • Age: 6 to 8 mos
    • Interferes with: ability to prop on arms in prone attaining and maintaining 4 point
    • crawling reciprocally
    • sitting balance when looking around; use of hands when looking at object in hands in sitting
  13. Flexor withdrawal
    • Stimulus: supine, head in mid position; legs extended; stimulate sole of foot
    • Response: positive:  uncontrolled flexion of leg
    • Negative:  maintenance of LE in ext.
    • Age:28 weeks gestation to 1-2 mos
    • Interferes with: prevents ability to progress from prone/supine to sitting/standing
  14. Crossed extension
    • Stimulus:supine, head in mid position; one leg flexed opposite LE extended; flex the extended leg
    • Response: positive: on flexion of extended leg, the opposite leg will extend
    • negative:  on flexion of the extended leg the opposite leg will remain flexed
    • Age: 28 weeks gestation to 1-2 mos
    • Interferes with: prevents ability to progress from prone/pine to sitting/standing

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