GCU-PSY-357 Lifespan Development Study Guide-Development Through the Lifespan 7ED Laura Berk CH5

How humans develop and change over time a. Physically b. Cognitively c. Socially1. How humans develop and change over time a. Physically b. Cognitively c. Socially 2. Influences on development: a. Nature vs. Nurture 3. Maturation: biologically determined changes that follow an orderly sequence Developmental issues: 2 fields of thought 1. Stages or Continuous Change? a. Stages: development through discrete stepsthrough which everyone progressesin same sequence 2. Continuity: development issteady and gradual Developmental Issues: 1. Importance of early experiences: a. Critical Periods : An optimal period when exposure to a certain stimuli/experience is needed to produce proper development b. Sensitive Periods: Times that are more important to subsequent development than others Physical Development-Infants: 1. Developing brain overproduces neurons a. 28 billion at 7 months (prenatal) b. 23 billion at birth PSY-357: Lifespan Development Study Guide Drone IT At Birth 3 Months 15 Months Physical Development - Motor: 1. Infants: Infant Reflexes: Innate motor responses elicited by specific stimuli Rooting: moves mouth toward the source of touch Sucking: Tactile stimulation of mouth produces rhythmic sucking Grasping reflex: touching the palm of the hand causes the hand to grab tightly Orienting reflex: pay greater attention to novelstimuli than to familiar stimuli