Lecture 6: Physical, Cognitive and Social Development These are summaries of the modules for lecture 6. It contains modules 13-16

22 views3 pages
Published on 16 Oct 2011
Department
Course
Professor
Module 13: Prenatal Development and the Newborn
- Starts when a woman’s ovary releases a mature egg
- Fewer than half of all fertilized eggs, called zygotes, survive beyond the first 2 weeks
- Within the first week, cells begin to differentiate
- Approximately 10 days after conception, the zygote attaches to the mother’s uterine wall
- Zygotes inner cell become the embryo
- By 9 weeks, embryo looks unmistakably human- is now a fetus
- The placenta transfers nutrients and oxygen from mother to fetus as well as screens out
harmful substances
o Sometimes substances slip, teratogens, like if the mom has HIV, the baby may get
this as well
- Pregnant smokers can cause serious harm to baby, not receive enough nutrients
- Drinking while pregnant may cause the baby to be alcohol dependent
o Can also affect the fetal brain
o Persistent drinking can put fetus at risk for birth defects and intellectual disability
THE COMPETENT NEWBORN
- Habituation- a decrease in responding with repeated stimulation
Module 14: Infancy and Childhood
- Brain overproduces neurons, 23 billion or so at birth
- The branching neural networks that eventually enabled you to walk, talk and remember
had a wild growth spurt.
- From ages 3-6 the most rapid growth is in your frontal lobes.
o Rationalize planning
o Preschoolers develop ability to control attention and behaviour
- Thinking, memory and language are the last to develop
- Maturation- standing before walking and using nouns before adjectives
- Severe deprivation or abuse can retard development
MOTOR DEVELOPMENT
- Babies roll over before they sit unsupported and they usually crawl on all fours before
they walk
o These reflect maturing nervous systems and not reflect imitation
- Genes play a major role in motor development
- Twins typically being sitting up and walking on nearly the same day
MATURATION AND INFANT MEMORY
- The earliest conscious memory is 3.5 years
- Even into adolescence, brain areas underlying memory, such as hippocampus and frontal
lobes, continue to mature
- What the conscious min does not know and cannot express in words, the nervous system
somehow remembers
Unlock document

This preview shows page 1 of the document.
Unlock all 3 pages and 3 million more documents.

Already have an account? Log in

Document Summary

Starts when a woman"s ovary releases a mature egg. Fewer than half of all fertilized eggs, called zygotes, survive beyond the first 2 weeks. Within the first week, cells begin to differentiate. Approximately 10 days after conception, the zygote attaches to the mother"s uterine wall. By 9 weeks, embryo looks unmistakably human- is now a fetus. The placenta transfers nutrients and oxygen from mother to fetus as well as screens out harmful substances: sometimes substances slip, teratogens, like if the mom has hiv, the baby may get this as well. Pregnant smokers can cause serious harm to baby, not receive enough nutrients. Drinking while pregnant may cause the baby to be alcohol dependent: can also affect the fetal brain, persistent drinking can put fetus at risk for birth defects and intellectual disability. Habituation- a decrease in responding with repeated stimulation. Brain overproduces neurons, 23 billion or so at birth.

Get OneClass Grade+

Unlimited access to all notes and study guides.

YearlyMost Popular
75% OFF
$9.98/m
Monthly
$39.98/m
Single doc
$39.98

or

You will be charged $119.76 upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.