Developmental Psychology Theories

Jean Piaget and Cognitive Development

  • Biographical Profile: Jean Piaget was a Swiss phoycologist who developed influential theories regarding childhood development.

  • Theory Overview: The central focus of Piaget's work is Cognitive Development, which outlines the progression of human intelligence and mental processes through distinct stages.

  • The Four Stages of Cognitive Development:

    • Sensorimotor Stage: This initial stage occurs from birth to 22 years old. It involves the basic coordination of sensory experiences with motor actions.
    • Preoperational Stage: Spanning from ages 22 to 77 years old, this stage is characterized by "Imaginary" thought processes and the development of language and symbolic thinking.
    • Concrete operational Stage: Occurring between the ages of 77-1111 years old, this stage is marked by the development of "abstract thinking" and more logical reasoning regarding physical objects.
    • Frmal operational Stage: Beginning in adolescence and continuing into adulthood, this stage involves the capacity to make "plans For Future" and engage in high-level hypothetical reasoning.

Laurence Kohlberg and Moral Development

  • Core Objective: Kohlberg's work centered on how individuals distinguish between "Right or wrong."

  • Theory Framework: The Theory of Moral Development is categorized into three primary levels:

    • Preconventional: At this level, individuals primarily "Follow rules" to avoid punishment or seek rewards.
    • Conventional: This level is defined by the desire to "avoid society's judgement" and a focus on maintaining social order and following norms.
    • Post Conventional: The most advanced level, characterized by a "genuine concern" for universal ethical principles and individual rights.

Sigmund Fraud and Psychosexual Theory

  • Conscious Awareness: Sigmund Fraud explored the "awareness of the Conscious minds" and their role in human behavior.

  • Theoretical Model: He proposed the "Phisycosocial Phsycosexual Theory" to explain personality development through a series of childhood stages.

  • Psychosexual Stages of Development:

    • Oral Stage: Occurs from birth to age 11. The primary activities and sources of interaction involve the mouth, specifically to "suck and smallem."
    • Anal Stage: Occurs from ages 11-33. This period is often characterized by "Conflict," typically associated with toilet training and self-control.
    • Phallic Stage: Occurs from ages 33-66. The primary focus of development during this period is on "pleasure."
    • Latency Stage: Occurring at age 66, this stage is described as being focused "emotionally" as sexual urges are suppressed.
    • Genital Stage: Spanning from puberty to adulthoods, this final stage involves individuals focusing on "themselves sexually" and establishing mature sexual relationships.