chapter 10 Flashcards
sequence of age-related changed that occur as a person progresses from conception to death
Development
extends from conception to birth, usually encompassing nine months of pregnancy
Prenatal period
Germinal stage (2 weeks)
Embryonic stage (2 weeks-2 months)
Fetal stage (2 months-birth)
Course of Prenatal
first phase of prenatal development, encompassing the first 2 weeks after conception, begins when zygote is made, within 36 hours cell division begins
Germinal stage
structure that allows oxygen and nutrients to pass into the fetus form the mother’s bloodstream, and bodily wastes to pass out to the mother
Placenta
second stage of prenatal, lasting 2 weeks to the end of the 2nd month.
Most vital organs and systems begin to form in the developing organism, which is now an embryo. Heart, spine, and brain emerge gradually as cell division becomes more specialized. (about 1 inch long)
Embryonic stage
third stage of prenatal development, lasting from 2 months through birth.
Bring rapid bodily growth like muscles and bones
Hearing is functional around 20-24 weeks
Fetal stage
23-25 weeks fetus reaches
threshold of viability: age where a baby can survive premature birth
refers to the progression of muscular coordination required for physical activities
Motor development
development that reflects the gradual unfolding on one’s genetic blueprint
Maturation
indicate the typical (median) age at which individuals display various behaviors and abilities
Developmental norms
refers to the close emotional bonds of affection that develop between infants and their caregivers.
Attachment
emotional distress seen in many infants when they are separated from people with whom they have formed an attachment
Separation anxiety
argue that infant-mother attachment develops because mothers are associated with the powerful, reinforcing event of being fed.
Harry Harlow (behaviorists)
made an alternative explanation; he argued there must be a biological basis.
Babies are biologically programmed to emit behavior (smiling, clinging, cooing, etc.) that triggers an affectionate response from adults
Adults are programmed by evolutionary forces to be captivated by this behavior
John Bowlby
found that these attachments fall in three categories
Secure attachment (most infants)
Anxious-ambivalent attachment (resistant attachment) (not comforted when mother returns)
Avoidant attachment (seek little contact and distress with mother gone)
Mary Ainsworth
process by which children map a word onto an underlying concept after only one exposure
Fast mapping