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Mod 45: Developmental issues, Prenatal Development, and the

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bailey moseley

on 22 April 2015

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Transcript of Mod 45: Developmental issues, Prenatal Development, and the

Bailey Moseley
Mod 45: Developmental issues, Prenatal Development, and the Newborn
Developmental Psychologists
: Study physical, mental, and social changes throughout the life span.

They focus on three issues:
1. Nature and Nurture
-The interaction between our genetic inheritance and our experiences
2. Continuity and Stages
-whether development is gradual and continuous or a series of relatively abrupt changes
3. Stability and Change
-Whether our traits endure or change as we age
The life cycle begins at conception, when one sperm cell unites with an egg to form a
zygote
Zygote
: The fertilized egg
The Zygote's inner cells become the
embryo
, and in the next 6 weeks, body organs begin to form and function
Embryo
: The developing human organism from about 2 weeks after fertilization through the second month
By 9 weeks, the
fetus
is recognizably human
fetus
: The developing human organism from 9 weeks after conception to birth

Prenatal Development
Teratogens
are potentially harmful agents that can pass through the placental screen and harm the developing embryo or fetus, as happens with
fetal alcohol syndrome
Fetal Alcohol Syndrome
: Physical and cognitive abnormalities in children caused by a pregnant women's heavy drinking

Prenatal Development
Babies are born with sensory equipment and reflexes that facilitate their survival and their social interactions with adults
Ex. They quickly learn to discriminate their mother's smell and sound
Researchers use techniques that test habituation, such as the visual-preference procedure, to explore infants' abilities
Habituation
: Decreasing responsiveness with repeated stimulation. As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner
Newborn Abilities
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