Infancy Flashcards
What occurs with infant motor development of newborn reflexes?
- Survival reflexes are adaptive (breathing, eye-blinking)
- Primitive reflexes are less adaptive and typically disappear in early infancy (grasping, babinski)
Identify and describe the two trends of infancy motor development
- Cephalocaudal (from head to toe) - babies start with their head and lifting their head before crawling etc
- Proximodistal (from proximal to distal) - internal or centre to outer
What is the order of milestones of motor development?
- lift head (~1 months)
- push chest up with arms (~2.5 months)
- Sit up without assistance (~6.5 months)
- Pull self up to stand (~7 months)
- Stand well alone (~11 months)
- Walk well alone (~13 months)
What is habituation?
- the process of learning to be bored with a stimulus (shows same visual stimulus, infant is bored and looks away)
- habituation can be used to test for discrimination of stimuli
What is preferential looking?
- infants prefer to look at complex rather than dull scenes
- contrasting of black and white panels experiment
What is evoked potentials?
Researchers can assess how an infants brain responds to stimulation by measuring its electrical conductivity
What is operate conditioning?
- Infants can learn to respond to a stimulus if they are reinforced for the response
(to suck faster or slower or to turn their head)
What do infants lack in vision at birth?
lack of acuity
What are infants visual preferences?
- Attracted to patterns that have light-dark transitions or contour
- Attracted to displays that are dynamic rather than static
- Young infants prefer to look at whatever they can see well
- Around 2 or 3 months a breakthrough begins to occur in the perception of forms
What qualities of hearing does infants have present at birth?
- can hear better than they can see
- can localise noises
- prefer relatively complex auditory stimuli
- can discriminate among sounds differ in loudness, duration, direction and frequency/pitch
Why does the visual system require stimulation early in life?
- to develop normally and influence auditory perception skills
- early visual deficits can affect later visual perception
What is Piagets first sensorimotor stage?
Reflex activity (birth-1 month)
What occurs in the reflex activity stage?
reflective reaction to internal and external stimulation
What is Piagets second sensorimotor stage?
Primary circular reactions (1-4months)
What occurs in the primary circular reactions stage?
infants repeat actions relating to their own bodies
What is Piagets third sensorimotor stage?
Secondary circular responses (4-8 months)
What occurs in the secondary circular responses stage?
responsive actions involving something in the infants external environment
What is Piagets fourth sensorimotor stage?
Co-ordination of secondary schemes (8-12months)