Lecture 2 required reading from the required textbooks readings, Module 8

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Published on 16 Oct 2011
School
University of Waterloo
Department
Psychology
Course
PSYCH101
Professor
Developing through the life span
8.1
Developmental psychologist
o Study physical , cognitive, and social changes throughout the human life cycle
Three areas of change its issues
o Nature/nurture
How do genetic inheritance and experience influence our development
o Continuity/stages
Is development a gradual, continuous process like riding an escalator, or does it proceed
through a sequence of separate stages, like climbing rungs on a ladder
o Stability/change
Do our early personality traits persist through life, or do we become different persons
as we age?
Prenatal Development and the Newborn
8.2 conception
Sperm cells approach the egg that is 85,000 times bigger
Sperm cells that reach the egg releases digestive enzymes to break away the egg's protective
coating
As one sperm cell penetrates through the protective coating, the egg blocks out all the other cells
and sprouts fingerlike projections to pull the sperm cell in
Within half a way, the two cells fuse together
8.3 prenatal development
Zygotes : fertilized eggs that undergo a two week long process of cell division
o After 37 weeks, the zygote attaches itself to the outer part of the uterine wall to form the
placenta
Embryo : developing human organism after two weeks
Fetus : developing human organism after nine weeks
o Looks unmistakably human
Teratogens : harmful substances and drugs that may affect the development of the baby
8.4 competent newborn
Rooting reflex : tendency for a baby to search for the touch of the cheek with an open mouth
Babies develop an innate preference towards their mother, feel hungry, prefer sounds that
originate from other
Using eye tracking technology and pacifiers linked towards electronic gear, researchers have been
able to discover many things about babies
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Document Summary

Developmental psychologist: study physical , cognitive, and social changes throughout the human life cycle. Three areas of change its issues: nature/nurture. How do genetic inheritance and experience influence our development: continuity/stages. Is development a gradual, continuous process like riding an escalator, or does it proceed through a sequence of separate stages, like climbing rungs on a ladder: stability/change. Sperm cells approach the egg that is 85,000 times bigger. Sperm cells that reach the egg releases digestive enzymes to break away the egg"s protective coating. As one sperm cell penetrates through the protective coating, the egg blocks out all the other cells and sprouts fingerlike projections to pull the sperm cell in. Within half a way, the two cells fuse together. Zygotes : fertilized eggs that undergo a two week long process of cell division: after 37 weeks, the zygote attaches itself to the outer part of the uterine wall to form the placenta.