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Understanding Life Cycle Developmental Stages

May 12, 2025

Phases of the Life Cycle: Developmental Tasks Across All Stages

Overview

  • Focus on developmental tasks throughout stages of life.
  • Includes Erik Erikson's stages of psychosocial development.

Prenatal Development

  • Germinal Stage (First 2 Weeks):
    • Creation of zygote and cell division.
    • Implantation in uterine wall begins.
    • Formation of placenta.
  • Embryonic Stage (2 Weeks to 2 Months):
    • Formation of vital organs and bodily systems (heart, spine, brain).
    • Period of vulnerability with risk of miscarriage.
  • Fetal Stage (2 Months to Birth):
    • Rapid growth of body, formation of muscles and bones.
    • Development of physical movements and functioning organs.
    • Brain development and viability at 23-26 weeks.

Dangers in Fetal Life

  • Teratogens: Drugs and viruses that can harm the embryo/fetus.
  • Fetal Alcohol Syndrome (FAS): Caused by alcohol exposure; leads to cognitive and physical abnormalities.

Infancy

  • Physical Development:
    • Reflexes for survival (rooting, sucking).
    • Neural connections grow in brainstem and limbic system.
  • Cognitive Development:
    • Object permanence begins to develop.
    • Initial egocentric thought.
  • Social Development:
    • Major social achievement is attachment.

Childhood

  • Cognitive Development:
    • Language development and understanding of symbols.
    • Development of memory and attention control.
    • Piaget’s stages of development (sensorimotor, preoperational, concrete operational).
  • Social Development:
    • Self-concept begins to form.
    • Understanding of others’ beliefs progresses.

Adolescence

  • Physical Development:
    • Puberty triggers growth and sexual maturity (primary and secondary sex characteristics).
  • Cognitive Development:
    • Abstract and logical thinking develops.
    • Focus on self-centered reasoning.
  • Social Development:
    • Peer relationships grow in importance.
    • Development of identity and independence.

Erikson's Stages of Psychosocial Development

  • Trust vs. Mistrust (Infancy):
    • Importance of meeting basic needs for trust.
  • Autonomy vs. Shame and Doubt (Early Childhood):
    • Development of personal responsibility.
  • Initiative vs. Guilt (Preschool):
    • Encouragement of initiative fosters self-esteem.
  • Industry vs. Inferiority (School Age):
    • Achievement through school and social interactions.
  • Identity vs. Role Confusion (Adolescence):
    • Exploration of personal identity.
  • Intimacy vs. Isolation (Young Adulthood):
    • Formation of intimate relationships.
  • Generativity vs. Stagnation (Middle Adulthood):
    • Contribution to society and future generations.
  • Integrity vs. Despair (Maturity):
    • Reflecting on life with a sense of fulfillment.

Adulthood

  • Early Adulthood:
    • Peak in physical abilities.
    • Focus on career and relationships.
  • Middle Adulthood:
    • Transition often includes reassessment of life (midlife crisis).
    • Decline in reproductive abilities.
  • Late Adulthood:
    • Physical decline (sensory abilities, health).
    • Increased focus on positive emotions.

Aging and Death

  • Challenges of Aging:
    • Weakened immune system and cognitive decline.
    • Emphasis on emotional control and positive feelings.
  • Approaching Death:
    • Responses vary; support from friends and groups is beneficial.
    • Importance of Erikson’s integrity for well-being.