exam 2 Flashcards
growth norms
expectations fro typical gains and variations in the height and weight of children based on their age
-first lose weight due to fluid lose then gain
cephalocaudal development
growth that proceeds from the head downward
-head and upper body develop before the lower body
proximodistal development
growth and development proceed from the center of the body outward
how long is it recommended to breastfeed
6 months and then 1 year with other mixed in
benefits of breastfeeding
-mothers have lower rates of diabetes, cardiovascular disease, depression, and some cancers
-contains immunizing agents that protect infants against infections, and breastfed infants tend to experience lower rates of allergies and gastrointestinal symptoms, lower risk of obesity, and fewer visits to physicians
malnutrition
causes growth stunting, cognitive defects, impairments in motivation, vuriosity, language and environment
-damages neurons (limited branching and shorter branches)
largest leading causes of infant death
birth defects, low birthweight, sudden infant death syndrome, respiratory distress, and unintentional injuries
-lack of education also increases infant mortality
-highest in black infants
SIDS
leading cause of infant death for under 1 year old
-some infants are more vulnarble due to genetics, premature
-can be caused by soft bedding, bed sharing, exposure to smoke, sleeping on stomach
neurons
-Dendrites are receptors that carry signals from other neurons to the cell body, which carries out the basic functions of the cell. Axons are tube-like structures that carry signals away from the cell body to other neurons
neurogenesis
formation of neurons (begins before birth)
synaptic pruning
loss of unused neural connections which improves the efficiency of neural communication
myelination
speeds the transmission of neural signals and communication among neurons
cerebral cortex
85% of brains mass
-prefrontal complex, responsible for higher thinking
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experience-expectant brain development
Brain growth and development that are dependent on basic environmental experiences, such as visual and auditory stimulation, in order to develop normally.
experience-dependent brain development
-result of lifelong experiences that vary by individual based on contextual and cultural circumstances
reflexes
involuntary and automatic responses to stimuli such as touch, light, and sound.
palmar grasp
curl fingers around objects
rooting
turn head towrads stimulus when cheek is touched
sucking
suck on object placed in mouth
moro
startle response to loud noise; arms thrown out
Babinski
fans and curls toes in response to stroking the bottom of the foot
stepping
makes stepping movements as if walk when help upright
swimming
holds breath and moves arms and legs, as if to swim when placed in water
gross motor development
the ability to control the large movements of the body, actions that help us move around in our environment.
-reflect a cephacaudal progression of motor control
fine motor development
the ability to control small movements of the fingers such as reaching and grasping.
influences on Motor Development
-influenced by genetics
-maturation
practice can enhance motor development
dynamic systems theory
A framework describing motor skills as resulting from ongoing interactions among physical, cognitive, and socioemotional influences and environmental supports; previously mastered skills are combined to provide more complex and effective ways of exploring and controlling the environment.
sensation
The physical response of sensory receptors when a stimulus is detected (e.g., activity of the sensory receptors in the eye in response to light); awareness of stimuli in the senses
perception
refers to the sense our brain makes of the stimuli and our awareness of it
preferential looking tasks
experiments to determine whether infants prefer to look at one thing or another
visual acuity
sharpness of vision
habituation
dishabituation
the recovery of attention, occurs, it indicates that the infant detects that the second stimulus is different from the first
vision
the least developed sense at birth, but it improves rapidly
-perfer to look at patterns and faces
externality effect
Refers to a particular pattern of infant visual processing.
-infants will scan the outside of things
depth perception
the ability to perceive the distance of objects from each other and from ourselves
visual cliff
study that shows how infants percieve depth
-the more crawling experience, the more likely they are to refuse to cross the deep side of the visual cliff
hearing
the most well developed sense at birth