Lecture 3 Flashcards
Cephalocaudal pattern growth
Growth sequence that gradually works from top to bottom of the body
Proximodistal pattern
Growth sequence in which growth starts at the center of the body and moves towards the extremities
Infant’s brain is % of it’s adult weight?
25%
1st 2 years of development in brain is….extensive.connections….twice as many… than are….what processes begin?
.Extensive myelination.Connections between neurons. Nearly twice as many connections are made than will ever be used.Blooming and pruning process begins
Synaptic pruning
when neurons are eliminated due to disuse or inadequate stimulation.
Brain _____ in weight in first ___ years of life
Brain triples in weight in the first 2 years of life
Plasticity
degree to which a developing behavior or a structure can change as the result of experience
Sensitive period
a limited and specific time that occurs early in life during which an organism is especially sensitive to environmental influences that relate to a particular element of development
Newborns sleep (hrs)….but by 6 mo…? closer to?.most common sleeping problem?.by end of first year, sleeping how much?
.Newborns sleep 16-17 hours per day.By 6 months of age, infants have moved closer to adult-like sleep patterns. Nighttime waking is most common infant sleep-related problem. By the end of the first year: sleep 15 hours (usually sleep through the night)
Half of infant’s sleep is what type?.large amounts of REM may provide infants w?.REM promotes?.no way to tell if infants…
REM, adults only spend 1/5 in REM. Large amounts of REM sleep may provide infant with added self-stimulation (autostimulation). REM also promotes brain development during infancy.dreams, we don’t know, no reporting!
Sudden infant death syndrome (SIDS).def.frew.leading cause of death in ___ year?
.Infant stops breathing, usually during the night, and dies suddenly without apparent cause.1/2000 infant Canadians per year.Leading cause of death in the 1st year of life
What does the Canadian Paediatric Society recommend babies do for SIDS
recommends that babies sleep on their backs rather than n sides or stomachs
Moro reflex.def
Activated when support for neck and head is suddenly removedArms are thrust outward and appear to grasp something
Rooting reflex
When infant’s cheek is stroked or side of the mouth is touched, the infant turns its head and tries to find something to suck
Sucking reflex
Sucking an object placed in infant’s mouthEnables the infant to get nourishment before it associates nipple with food
