Chapter 2: Theories of Human Development

The five basic issues in human development

1. Goodness/Badness: underlying good and evil
2. Nature/Nurture: heredity or environment most influential
3. Activity/Passivity: Development- self determination or by others
4. Continuity/Discontinuity: stages or gradual
5. Universality/Context Specificit

Psychoanalytic theory

proposes that people are driven by motives and emotional conflicts of which they are largely unaware and that they are shaped by their earliest experiences in the family

Freud

-psychoanalytic theorist
- instincts and unconscious motivation
-psychic energy: id, ego, and superego

Instincts

inborn biological forces that motivate behavior

Unconscious motivation

the power of instincts and other inner forces to influence our behavior without our awareness

Id

the impulsive, irrational, and selfish part of the personality whose mission is to satisfy the instincts

Ego

the rational side of the individual that tries to find realistic ways of gratifying the instincts; begins in infancy

Superego

the individuals internalized moral standards

Dynamic system

regular conflicts within

Libido

Freud's term for the psychic energy of the sex instinct

Frued's Psychosexual Development

- child moves through five stages: oral, anal, phallic, latent, and genital
-Stages result from conflict between Id and Superego
- Conflict creates anxiety
- Ego defends against anxiety with defense mechanisms
- early experiences have long-term effects on

Oral stage (birth-1)

libido is focused on the mouth as source of pleasure

Fixation

arrested development in which part of the libido remains tied to an earlier stage of development

Anal stage (1-3)

focused on toilet training which can create conflicts between the childs biological urges and the societys demands

Phallic stage (3-6)

Centered on the genitals; development of the superego occurs

Identification

involves taking on or internalizing the attitudes and behaviors of another person

Oedipus complex

a boy experiencing love for his mother

Electra complex

a girl experiencing desire for her father

Latent period (6-12)

sexual urges are tamed; energy is invested in school work and play with same-sex friends

Genital period(12+)

puberty rewakens the sexual instincts; seek to establish mature sexual relationships

Defense mechanisms

unconsicous coping devices the body creates to defend itself against anxiety

Repression

removing unacceptable thoughts or traumatic memories from consciousness

Regression

retreating to an earlier, less traumatic stage of development

Projection

seeing in others the motives we fear we possess

Reaction formation

expressing motives that are just the opposite of ones real motives

Strengths and weaknesses of Freuds theory

Strengths- awarness of unconscious motivation and emphasized important early experience
Weaknesses- ambiduous, inconsistent, not testable, and not supported by research

Erikson: Neo-freudian psychoanalytic theory

- most influential neo-freudian theorist
- like freud, concerned himself wit hthe inner dynamics of personality and proposed that the personality evolves through systematic stages
- differences from freud: less emphasis on sexual urges, more emphasis on r

8 Psychosocial stages (conflcits)

1. Trust vs. mistrust (birth-1yr)-
2. Autonomy vs. shame and doubt (1 to 3)
3. Intiative vs. guilt (3-6)
4. Industry vs. inferiority (6-12)
5. Identity vs. role (12-20)
6. Intimacy vs. isolation (20-40)
7. Generativity vs. stagnation (40-65)
8. Integrity

Trust vs. mistrust stage

infants must learn to trust their caregivers to meet their needs

Autonomy vs. shame and doubt

children must learn to be autonomous

Initiative vs. guilt stage

preschoolers develop initiative by devising and carrying out bold plans, but they must learn not to impinge on the rights of others

Industry vs. inferiority stage

children must master important social and academic skills and keep up with their peers

Identity vs. role confusion stage

adolescents ask who they are and must establish social and vocational identites

Intimiacy vs. isolation Stage

young adults seek to form a shared identity with another person, but may fear intimacy and experience loneliness and isolation

Generativity vs. stagnation stage

middle-aged adults must feel that they are producing something that will outlive them, either as parents or as workers

Integrity vs. despair stage

older adults must come to view their lives as meaningful to face death without worries and regrets

Strengths and weaknesses of Erikson's theory

Strengths: focus on identity crisis of adolescence still most relevant, emphasis on rational and adaptive nature, interaction of biological and social influences
Weaknesses: sometimes vague and difficult to test, and does not explain how development comes

Behaviorism

consclusions should be based on observable beavior

Watson

behaviorist that created classical conditioning

Classical conditioning

a simple form of learning in which a stimulus that initially had no effect on the individual comes to elicit a response through its association with a stimulus that already elicits the response

Unconditioned stimulus (UCS)

built-in; unlearned stimulus

Unconditioned response

automatic, unlearned response

Conditioned stimulus

stimulus causes learned response

Conditioned response

learned response

Tabula rasa

environmental view

Skinner: Operant conditioning

a learner's behavior becomes either more or less probable depending on the consequences it produces

Positive reinforcement

a desirable event that when introduced following a behavior makes that behavior more probable

Negative reinforcement

occurs when a behavioral tendency is strengthened because something unpleasant or undesirable is removed from the situation or is avoided after the behavior occurs

Positive punishment

an unpleasant stimulus is applied or added to the situation following a behavior

Negative punishment

when a desirable stimulus is removed following the behavior

Badura: social cognitive theory

-formally called social learning theory
- claims that humans are cognitive beings whoe active processing of information plays a critical role in their learning, behavior, and development
- people think about their connections between their behavior and it

Observational learning

simply learning by observing behavior of other people

Latent learning

learning occurs but its not evident in behavior

Vicarious reinforcement

a process in which learners become more or less likely to perform a behavior based on whether consequences experienced by the model they observe are reinforcing or punishing

Reciprocal determinism

the flow of incluence between people and their environments is a two-way street; the environment may affect the person, but the person's characteristics and behavior will also influence the environment

Strengths and weaknesses of learning theory

Strengths: precise and testable, carefully controlled experiments, practical applications across lifespan
Weaknesses: inadequate account of lifespan changes, and ignored genetic and maturational processes

Piaget: Cognitive Development

- Intelligence: ability to adapt to environment (IQ test)
- Constructivism: children construct new understandings of the world based on their experiences

Interactionist

both biological maturation and experince required for developmetnal progress

Piaget's Stage theory

At each new stage, children think in a qualitatively different way

Piaget's four stages of cognitive development:

1. Sensorimotor: senses and motor actions
2. Preoperational: symbolic thinking (language)
3. Concrete operational: acquire logical operations
4. Formal operations: think about abstract concepts and hypothetical possibilities

Strengths and Weaknesses of cognitive development

Strengths: well-accepted by developmentalists, well-researched, and influenced education and parenting
Weaknesses: igonores motivation and emotion and stages are not universal, especially the last one

Ethological theory: Karl Lorentz

- Imprinting (attachment)
- Ethological theory: strongly influenced by biology and tied to evolution
- Bowlby's attachment theory
- Critical period: 3 months-using eyes

Pros and cons to Lorentz

Pros- emphasis on biology and evolution, sensitive periods of development, and careful observations
Cons- emphasis on biological foundations, inadequate attention to cognition, and emphasis on animal behavior

Lev Vygotsky: Sociocultural perspective

- cognitive development is a social process
- problem solving aided by dialogues

Gottlieb: Evolutionary/epigenetic systems

- genes, neural activity, behavior, and environment are mutually influential
- we are predisposed to develop in certain kinds of ways
- current behavior results from past adaptation

Epigenesis

- the process through which nature and nuture, genes and environment, jointly bring forth development in ways that are dificult to predict at the outset
- genes alone don't influence behavior

Ethology

the study of evloved behavior of various species in their natural environment

Strengths and weaknesses of Gottlieb

-Strengths: stresses the interaction of nature and nuture
- Weaknesses: only partially formulated and tested, and no coherent developmental theory