1. Infancy and Childhood

2. The Study of Development Developmental Psychology The study of how people grow and change throughout the lifespan; from conception through infancy(0-2), childhood(2-12), adolescence(13-19), and adulthood(20+), and until death Also study different types of development 1. Physical development 2. Social Development 3. Cognitive Development

3. Study of Development Two key debates for Psychologists 1. Nature (Heredity) VS. Nurture (environment) Nature: Behavior originates in the genes Nurture: Behavior is influenced by environmental factors such as family background, culture, nutrition, home experiences and school 1. Stages VS. Continuity Does human development more like climbing a set of stairs or is it like walking up a hill gradually.

4. Physical Development How do babies develop physically during infancy?(0-2) Height and weight increase Muscles and nervous systems soon develop

5. Social Development How infants and children learn to relate to other people. Factors include attachment, parenting styles, child care, child abuse and neglect, and self-esteem.

6. Cognitive Development Development oof peoples though processes Jean Piaget and Lawrence Kohlberg Humans organize information in two ways: Assimilation- placed into categories that already exist Accommodation-change brought about because of new information

7. Piaget’s 4 Stages Stages of Cognitive Development The Sensorimotor Stage: A period of time between birth and age two during which an infant's knowledge of the world is limited to his or her sensory perceptions and motor activities. Behaviors are limited to simple motor responses caused by sensory stimuli. The Sensorimotor Stage: The Preoperational Stage: A period between ages two and six during which a child learns to use language. During this stage, children do not yet understand concrete logic, cannot mentally manipulate information and are unable to take the point of view of other people. The Preoperational Stage: The Concrete Operational Stage: A period between ages seven and eleven during which children gain a better understanding of mental operations. Children begin thinking logically about concrete events, but have difficulty understanding abstract or hypothetical concepts. The Concrete Operational Stage: The Formal Operational Stage: A period between age twelve to adulthood when people develop the ability to think about abstract concepts. Skills such as logical thought, deductive reasoning and systematic planning also emerge during this stage. The Formal Operational Stage: