Exam 2 - Ch.4-8 Flashcards
Cephalocaudal development
growth from head downward
Proximodistal development
growth from center of body outward
Growth norms
typical gains in ht/wt based on age and ethnic background; occurs in bursts; better w/sleep, MDCs, good nutrition (critical)
Breastfeeding
83% do it, many stop when go back to work; stereotypically woman of lower SES
Mom’s milk
custom composition of fat/sugar/water/protein needed for baby as grows
Effects of breastfeeding
lowers allergies, GI issues, obesity
- small gains over formula babies in language, cognitive development/IQ
Solid food
4-6mo., thin, gruel, porridge, veg/fruit purees, variety of foods = broader palate, must intro foods many times before accept
Non nutritional food and obesity
if feed baby junk food in first couple years, more likely to be obese adults
Malnutrition
damages neurons, cognitive deficits, growth stunting, various diseases
Failure to Thrive
weight below 5 percentile for age; compounded by other health/envir. factors; irritable, emotional, lack age appr. social responses, delayed motor development
If failure to thrive untreated
delays in cognitive, verbal, behavioral skills needed for daily life
Treatment Failure to thrive
get nutrients needed to grow normally; use social workers to address underlying contributors
Neural development - infancy
0-2 = massive brain growth, neurogenesis, myelination, synaptogenesis (elec. to chem. to elec.), synaptic pruning
Most active brain areas in infancy
sensorimotor cortex and subcortical parts
Structural development of brain - infancy
brain sensitive to stimulation/experience; differentiates lobes, lateralization
Lateralization
L = lang, R = creativity/spatial; joined by corpus callosum (nerve fibers facil. comm.)
Hemispheric dominance
most L dom. (R handed); experience and agility solidifies preference
Experience and brain development
need stimulation and experience to maximize brain devel;
Experience expectant brain development
brain depends on experiencing certain stimuli @ key points in time to develop normally e.g. vision dev. need to see in infancy
Experience-dependent brain development
growth that occurs in response to learning experience; e.g. need peer interaction to develop socially
Sleep and brain development
infant sleep 12h, bad sleep = bad memory/attention; REM as self-stimulation (creates neurons)
Cultural differences in sleeping
US try get baby sleep through night
Europe parents adjust their sleep cycle to baby’s
Co-sleeping
when baby shares bed w/parent; enhance sense of security/attachment to mom - not in US
Habituation
when repeated exposure to stimulus results in gradual decline in intensity of response; if habituate fast early on, have better language
Dishabituation
renewed interest; infant detects change in stimulus pattern
Albert and white rat
show rabbit, cat, rat; big bang; next time see white rat - gets scared response again; later shown white rabbit and generalizes it; also scared
Classical conditioning
learn through association; more neurological damage (FAS) = poor classical conditioning
Imitation
seems to be born w/, maintain over life, innate tendency to imitate others; mirror neurons in prefrontal
Sensation
when senses detect stimulus; register it
Perception
sense our brain makes of stimulus and our awareness of ‘sense’; assigning meaning to stimulus
Senses and the baby
all poor (except smell and hearing), improve dramatically if have experience
Visual acuity
sharpness of vision; baby no see well, prefers mom’s face; esp. after talks
Intermodal perception
process of combining info from 1+ sense
Depth perception
ability to perceive distance of object from each other and from ourselves; visual cliff (more crawling experience, > likely to stop)
Hearing of baby
great @ birth; attentive to voices, can tell mom’s; prefer speech sounds/native language, prefer classical music
Touch of baby
use mouth (sensitive) to explore; skin to skin contact has analgesic effect (reduces pain); infant massage DEC stress and INC weight gain
Smell and taste
great @ birth; know mom’s odor, all prefer any woman’s milk, exposed to flavors of amniotic food so eat variety during preg.
Affordances
actional properties of object; nature/opportunity - differs by age - e.g. big pot to 10 yo vs 2 yo
Gross motor development
learning to control muscles for larger movements; first life head (cephalocaudal dev.) unaffected by ethnic/SES differences
Crawling @ 6-10mo.
Toddling (unsteady walking) 9mo.
Walking 1yr.
Infant instincts
palmar grasp, rooting (turn head toward stim. when touch cheek), sucking, moro (startled by loud noise - arms out, arch back, arms together); babinski (curl toes when stroke foot sole); stepping; swimming
Fine motor development
ability to control small movements; reaching/draw/grasp; 5-6mo, provides cog. stim., learn cause/effect
Biological determinant of motor development
some universal; brain maturation = necessary but need opportunities to practice as well
Dynamic system theory
motor skills develop alongside brain through interaction w/senses and envir. e.g. visual acuity and ability to walk
Proximodistal development
growth from center of body outward
Growth norms
typical gains in ht/wt based on age and ethnic background; occurs in bursts; better w/sleep, MDCs, good nutrition (critical)
Breastfeeding
83% do it, many stop when go back to work; stereotypically woman of lower SES
Mom’s milk
custom composition of fat/sugar/water/protein needed for baby as grows
Effects of breastfeeding
lowers allergies, GI issues, obesity
- small gains over formula babies in language, cognitive development/IQ
Solid food
4-6mo., thin, gruel, porridge, veg/fruit purees, variety of foods = broader palate, must intro foods many times before accept
Non nutritional food and obesity
if feed baby junk food in first couple years, more likely to be obese adults
Malnutrition
damages neurons, cognitive deficits, growth stunting, various diseases
Failure to Thrive
weight below 5 percentile for age; compounded by other health/envir. factors; irritable, emotional, lack age appr. social responses, delayed motor development
If failure to thrive untreated
delays in cognitive, verbal, behavioral skills needed for daily life
Treatment Failure to thrive
get nutrients needed to grow normally; use social workers to address underlying contributors
Neural development - infancy
0-2 = massive brain growth, neurogenesis, myelination, synaptogenesis (elec. to chem. to elec.), synaptic pruning
Most active brain areas in infancy
sensorimotor cortex and subcortical parts
Structural development of brain - infancy
brain sensitive to stimulation/experience; differentiates lobes, lateralization
Lateralization
L = lang, R = creativity/spatial; joined by corpus callosum (nerve fibers facil. comm.)
Hemispheric dominance
most L dom. (R handed); experience and agility solidifies preference
Experience and brain development
need stimulation and experience to maximize brain devel;
Experience expectant brain development
brain depends on experiencing certain stimuli @ key points in time to develop normally e.g. vision dev. need to see in infancy
Experience-dependent brain development
growth that occurs in response to learning experience; e.g. need peer interaction to develop socially
Sleep and brain development
infant sleep 12h, bad sleep = bad memory/attention; REM as self-stimulation (creates neurons)
Cultural differences in sleeping
US try get baby sleep through night
Europe parents adjust their sleep cycle to baby’s
Co-sleeping
when baby shares bed w/parent; enhance sense of security/attachment to mom - not in US
Habituation
when repeated exposure to stimulus results in gradual decline in intensity of response; if habituate fast early on, have better language
Dishabituation
renewed interest; infant detects change in stimulus pattern
Albert and white rat
show rabbit, cat, rat; big bang; next time see white rat - gets scared response again; later shown white rabbit and generalizes it; also scared
Classical conditioning
learn through association; more neurological damage (FAS) = poor classical conditioning
Imitation
seems to be born w/, maintain over life, innate tendency to imitate others; mirror neurons in prefrontal
Sensation
when senses detect stimulus; register it
Perception
sense our brain makes of stimulus and our awareness of ‘sense’; assigning meaning to stimulus
Senses and the baby
all poor (except smell and hearing), improve dramatically if have experience
Visual acuity
sharpness of vision; baby no see well, prefers mom’s face; esp. after talks
Intermodal perception
process of combining info from 1+ sense
Depth perception
ability to perceive distance of object from each other and from ourselves; visual cliff (more crawling experience, > likely to stop)
Hearing of baby
great @ birth; attentive to voices, can tell mom’s; prefer speech sounds/native language, prefer classical music
Touch of baby
use mouth (sensitive) to explore; skin to skin contact has analgesic effect (reduces pain); infant massage DEC stress and INC weight gain
Smell and taste
great @ birth; know mom’s odor, all prefer any woman’s milk, exposed to flavors of amniotic food so eat variety during preg.
Affordances
actional properties of object; nature/opportunity - differs by age - e.g. big pot to 10 yo vs 2 yo
Gross motor development
learning to control muscles for larger movements; first life head (cephalocaudal dev.) unaffected by ethnic/SES differences
Crawling @ 6-10mo.
Toddling (unsteady walking) 9mo.
Walking 1yr.