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Do Now:
Write what you know about conception, pregnancy, & labor from your past health classes and/or other experiences.
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Developmental Psychology
The study of YOU from womb to tomb.We are going to study how we change physically,
socially, cognitively and morally over our lifetimes.
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Nature Versus NurtureWhile going through
this unit always been in the back of your head….
Are you who you are because of:
• The way you were born- Nature.
• The way you were raised- Nurture.
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Research MethodsCross-Sectional Studies
• Participants of different ages studied at the same time.
Longitudinal Studies• One group of people
studied over a period of time.
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Prenatal Development• Conception begins
with the drop of an egg and the release of about 200 million sperm.
• The sperm seeks out the egg and attempts to penetrate the eggs surface.
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Stage One: Germinal
The ZygoteLasts about two weeks and consists of rapid
cell division.
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Zygotes• Less than half of all
zygotes survive first two weeks.
• About 10 days after conception, the zygote will attach itself to the uterine wall.
• The outer part of the zygote becomes the placenta (which filters nutrients).
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Stage 2: Embryonic
• Lasts about 6 weeks.
• Heart begins to beat and the organs begin to develop.
Embryo
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Teratogens• Chemical agents that
can harm the prenatal environment.
• Alcohol (FAS)• Other STDs can harm
the baby…..• HIV• Herpes• Genital Warts
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Stage 3: Fetal- Fetus• By nine weeks we have
a…• Age of Viability- by
about the 6th month, the stomach and other organs have formed enough to survive outside of mother.
• At this time the baby can hear (and recognize) sounds and respond to light.
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Childbirth
Click the woman in labor to watch a birthing video.(Don’t worry- it is not a real woman.)
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Healthy Newborns• Turn head towards
voices .• See 8 to 12 inches
from their faces.• Gaze longer at
human like objects right from birth.
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Reflexes• Inborn automatic
responses.• Rooting• Sucking• Grasping• Moro• Babinski
Click on pictures to see clips of reflexes.
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Maturation
• Physical growth, regardless of the environment.
• Although the timing of our growth may be different, the sequence is almost always the same.
Click to see movie of Captain Marvel and his maturation.
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Developmental Norms- average age at which children perform various tasks
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Motor Development• Proximodistal Principle- development inward
and then outward (infant can roll before walk or bring arms together)
• Cephalocaudal Principle- development head to foot (infant can lift their head before being able to sit up)
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Motor Skills
Gross Motor Skills Fine Motor Skills• Pre-representational-
scribbles, focus is on activity itself
• Representational- drawing means something to the child, 4 yr old can draw stick figures
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Secret Life of the Baby’s Brain
• http://www.youtube.com/watch?v=cfCffnjfo3w