Introduction to developmental psychology (PSY1200)
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Summary Psychology: Parental development and the newborn period
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Introduction to developmental psychology (PSY1200)
Instelling
University Of Oslo
Boek
How Children Develop
This document consists the summary and notes form the second chapter in the 2020 book "How children develop". The main themes of this chapter s: prenatal development, hazards to prenatal development, the birth experience and the newborn infant.
PS: The purple boxes are the summaries of each subc...
Introduction to developmental psychology (PSY1200)
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Voorbeeld van de inhoud
“How Children develop”
Chapter 2 – Prenatal development and the newborn period
Prenatal development
Summary:
Nature and nurture combine forces in prenatal development. Much of this
development is generated by the fetus itself, making the fetus an active
player in its own progress. Substantial continuity exists between what goes
on before and after birth in that infants demonstrate the effects of what has
happened to them in the womb.
Prenatal development begins at the cellular level with conception, the union
of an egg from the mother and a sperm from the father to form a single-
celled zygote. The zygote multiplies and divides on its way through a
fallopian tube.
The zygote undergoes the processes of cell division, cell migration, cell
differentiation, and cell death. These processes continue throughout
prenatal development.
When the zygote becomes implanted on the uterine wall, it becomes an
embryo. From that point, it is dependent on the mother to obtain
nourishment and oxygen and to get rid of waste products through the
placenta.
Fetal behavior begins 5 or 6 weeks after conception with simple movements,
undetected by the mother, that become increasingly complex and organized
into patterns. Later, the fetus practices behaviors vital to independent living,
including swallowing and a form of intrauterine “breathing.”
The fetus experiences a wealth of stimulation both from within the womb
and from the external environment. The fetus learns from this experience,
as demonstrated by studies showing that both fetuses and newborns can
discriminate between familiar and novel sounds, especially in speech, and
exhibit persistent taste preferences developed in the womb.
Epigenesis
o The emerges of new structures and functions during development
Conception
Gametes
o Reproduction cells - egg and sperm
o Produced throughout meiosis
"survival of the fittest" - sperm swims up to the egg
The fertilized egg is called the zygote
, Early development
Identical (monozygotic twins) are made during the 4th day after conception
Fraternal (dizygotic twins) result during conception
Nerual tubes will grow and develop into the brain
The amniotic sack is a membrane filled withclear watery fluid in which the fetus
floats
The placenta is a rich network of blood vessels, weighing roughly one pound that
extends into the tissue of the mothers womb
Umbilical cord connects the placenta and the amniotic sack
Fetal experience and behavior
Movement
Fetal movement starts 5 to 6 weeks after conception
Emergence of hiccups, swallowing
Movement of limbs, fingers
Respiratory readiness for breathing independently after birth
Behavioral cycles
Rest-activity cycles: less activity in latter half of the prenatal periode
Circadian rhythm apparent
REM during active sleep
Sight
Minimal
Touch
Contact with parts of the body
Taste
Can detect flavors in amniotic fluid
Smell
Amniotic fluid takes on odor from what mother eats; phylogenetic continuity
Hearing
Responds to various sounds from at least 6 months
All these things are considered prenatal nurture
Fetal learning
Habituation
A simple form of learning that involves a decrease in response to repeated or
continued stimulation; seen at 30 weeks gestation in visual and auditory
stimuli
Dishabituation
Introduction of a new stimulus rekindles interest following habituation to a
repeated stimulus
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