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Prenatal Development occurs in 3 stages
1.Germinal Period 2.Embryonic Period 3.Fetal Period
Full Gestational age averages to
40 weeks
1st Year of life what will the child learn
physically the child will learn to sit, stand, crawl, climb, walk
2nd Year
physical growth will slow down, but motor skills increase
Cephalocaudal Pattern
physical growth and functional MS development begins at the head (top) and makes its way down to the toes. aka “head to toe development
Proximodistal Growth
growth begins at the center of the body and moves towards the extremities
Growth Spurts
Periods of sudden and drastic growth
95% NBs measure height
18-22 inches
NBs average between weight
5-10 pounds
Infants average a growth rate of
1 inch/ month
EEG
is a test that measures electrical activity in the brain using electrodes attached to the scalp
fNIR
uses low lvls of near- infrared light to monitor changes in blood oxygen lvls
How many lobes in the brain
4
Frontal lobe
involved in voluntary movement, thinking, personality
Parietal lobe
involving spatial location, attention and motor control
Temporal lobe
Facilitates hearing, language processing and memory
Occipital lobe
functions in visions
Dendrites
Bring information/ signals from other neurons IN
Axon
Sends information/ signals OUT of the cell body and into other neurons
Myelination
the process on covering axons w/ fat cells. This then helps to speed up neural transmissions
Connectivity
among neurons increases. Creating NEW neural pathways
The Neuroconstructivist View
Believes that the brain development depends on heredity and environment interaction
Why do we need sleep
1.Survival
2.Sleep is critical for brain plasticity and brain development in general
Infant Sleep
Typical NB needs to sleep at least 18 hrs/ day
Arnold Gesell theory
discovered that the development of motor skills occurs in a fixed order in specific time frames
Esther Thelen
1980s. New behavior is the result of MANY factors
-1st one must perceive
-one must then be motivated to do something
-create a new motor behavior
Embodied
Changes in infants’ bodies modify the nature of their motor behavior. Walking is a good example of motor behavior being embodied. Their changing body interacts with experiences and opportunities to walk as they physically mature
Embedded
Environmental circumstances can facilitate or restrict possibilities for motor behavior- The environment require infants to adapt. As they encounter steep slopes, narrow passageways, stairs, and many other circumstances, infants have to be flexible and modify how they move
Enculturated
Social and cultural contexts influence motor behavior. Caregivers play important roles in infants’ motor development. Cultures also vary in how much caregivers engage in behavior that stimulates and encourages infants’ and children’s motor development
Enabling
Motor development is not isolated from other aspects of development, and it contributes to infants’ and children’s development in other domains. Before infants learn to crawl and walk, their exploration of the world depends on where their caregivers place them. As their motor skills expand, they gain more independence in exploring and learning about the world, thereby promoting their cognitive and socioemotional development
Reflex
is an involuntary, automatic response to a stimulus, and beyond the NBs control
Survival Reflexes
Enable the infant to survive and meet basic needs
2. Positively impact caregivers
Primitive Reflexes
These reflexes are controlled by the lower subcortical areas of the brain, so as higher functioning areas of the brain (cerebral cortex) develop, so will behavior
Gross Motor Skills
Involves large-muscle activities
Fine Motor Skills
Involves finely-tuned movements. It can be any activity requiring finger dexterity.
Sensation
occurs when information interacts w/ sensory receptors (eyes, ears, tongue, nostrils, and skin).
- For the most part, senses will “work” well when the child is born
Perception
interpretation of what is sensed.
- Perception takes time and maturity to become something the child can do.
Eleanor and James J. Gibson theory
Our perceptual system can select from rich information that the environment provides.
We perceive information that exist in the world around us.
Robert Franz theory
Found that the most preferred stimulus was a face
Perception at 0-2 Months:
-Faces and scrabbled faces were as equally preferred