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DEVELOPMENTAL PSYCH
Ch. 9
Major Themes
Nature and nurture Continuity and stages
gradual, continuous process or sequence of separate stages
Stability and change personality traits persist through life become different people as we age
Baby Development
Conception Prenatal
Zygote Embryo Fetus
Newborn Implicit memories
Physical Development
Brain cells develop very fast in the womb Neural networks grow very fast after birth. The frontal lobe booms next, then the
association areas (thinking, memory, language) Infantile Amnesia
Before age 3½ - we can’t remember
COGNITIVE DEVELOPMENT
Jean Piaget
Jean Piaget - believed that the human mind develops through a series of stages
Schemas - concepts or frameworks that organize and interpret information accommodate - we
revise and refine them
Piaget – 4 stages
Sensorimotor stage birth – 2 years object
permanence things continue to
exist even when they can’t be seen.
8 months Some evidence of
Logic
Piaget – 4 stages
Preoperational stage age 2 to 6/7 too young to do mental operations
No idea of conservation idea that something can retain or conserve a
characteristic while something else changes
egocentric –unable to view a situation from another person’s point-of-view
Theory of mind - the ability to read another person’s intentions.
Piaget – 4 stages
Concrete operational stage 6/7 – 12 years can think with concrete, physical objects
and understand conservation Cannot think in the abstract
Example - Math
Piaget – 4 stages
Formal operational stage age 12 Thinking changes from being confined to
the concrete to including the abstract symbols and variables if-then statements
SOCIAL DEVELOPMENT
Attachment
stranger anxiety - someone who does not fit the schema (an unfamiliar person)
secure attachment - bond between a 12 month old and a parent is strong
critical period – the only time something happens
Imprinting- attachment hard-wired into the organism
Sensitive Period – Not written in stone People – no critical period attachment imprinting
Harlow’s Monkeys
Harry Harlow wire mesh “mother” or a
wire mesh mother covered with a furry carpet furry fake-mothers
adjusted better Physical Contact
metal “mothers” became panic-stricken with fear.
physical contact - important to healthy child-parent attachment
Strange Situation
Mary Ainsworth mother and child (12
months) playing in a room
Switch of Adults, then Parent returns
The children of responsive parents showed a more "secure attachment" than children of less-responsive parents
Temperament
temperament - genetic tendency as to how they react and how intensely they react to a situation Evident at few weeks persist as we grow
older Evident by studying twins
Attachment
Don’t forget the fathers Attachment peaks at 13
No Attachment?
person is usually withdrawn and frightened abusive to their kids at a more frequent
rate laundry list of possible problems –
brain/hormonal changes, nightmares, depression, increased substance abuse, binge eating, aggression, crime
Removing Attachment
Similar effects Courts reluctant to remove from parents Day Care?
Idea of “Self”
6 months - gain “self awareness”
grade-school age - identifies terms of gender, group membership, personal characteristics
age 8 to 10 - self-image is very much set.
age 12 - self-concept an idea of who you are as a
person
Parenting Styles - Diana Baumrind
Authoritarian –children need rules and must obey them
Permissive children should make and learn from their own mistakes; provide few rules.
Authoritative – these parents are demanding and responsive Seen as Best
culture influences Western cultures - value individual strength. Asian and African cultures - more group/family oriented
Parents vs Peers
Parents and peers tend to split “responsibilities”… Parents - long-term
discipline, order, education, stability Peers - for the now
popularity, style and interaction
GENDER DEVELOPMENT
Men and Women are Different 1 Chromosome
Differences Emotion,
aggression, self esteem, aggression
Physiological differences
Gender Roles
Gender type – Male/female Social Learning Theory
Observations and imitation
Current issues – Homosexual marriage and Absentee fathers
COGNITIVE DEVELOPMENT
Cognitive Development
Lawrence Kohlberg studied how people
figure right and wrong
Kohlberg came up with stages…
Lawrence Kohlberg - Stages
Preconventional morality – before age 9 focuses on child’s self-interest Rules obeyed to avoids punishment
Conventional morality – age 9 to the mid-teen there are rules and they are to be obeyed “because it’s the law”
Postconventional morality –later adolescence respect for others rights or human dignity or
basic ethical beliefs
SOCIAL DEVELOPMENT
Erik Erickson
Erik Erickson studied “psychosocial” development 8 stages each stage a person faced
some type of a crisis resolve that crisis before
moving on to the next stage
Erickson’s 8 Stages
Trust vs. mistrust – Infancy – If an infants basic needs are met, they develop trust.
Autonomy vs. shame/doubt – Toddlers – They wish to do things on their own, or they’re ashamed.
Initiative vs. guilt – Preschool – They make and carry out plans, or they’re guilty for failing to do so.
Industry vs. inferiority – Grade school – Kids feel good about being productive, or they feel inferior for failing to do so.
Erickson’s 8 stages
Identity vs. role confusion – Adolescence – Teens test different roles, or they’re confused about who they are.
Intimacy vs. isolation – Young adults – They try to gain a close loved one, or they feel alone.
Generativity vs. stagnation – Middle aged – They gain a sense of adding to the world through family and/or work, or they feel they’ve no purpose.
Integrity vs. despair – Late adulthood – They look back on their lives and either see a sense of worth or failure.
ADULT DEVELOPMENT
Physical Development
Peak in late 20s Middle Aged –
40s Women -
Menopause age 50
Later adulthood – Over 60
Late Life
senses decline with age After 65 - immune system weakens Dementia - small strokes, a brain tumor, or
alcohol dependence Alzheimer’s disease - 3% of people.
Memory goes first, then reasoning. A declining sense of smell signals the onset of
Alzheimer. Causes
loss of brain cells lack of acetylcholine
Cognitive - Adults
Memory - best around age 20 - declines with age
Crystallized intelligence – our sum quantity of knowledge (like vocab words) – increases up to old age.
Fluid intelligence – our reasoning speed and ability (like solving a puzzle) – decreases up to old age.
Social - Adults
Social Clock Love and Work – Most important things
Social - Adults
Grief – No Set in Stone Stages Denial Anger Bargaining Depression Acceptance
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