Class Notes (1,100,000)
CA (620,000)
Western (60,000)
PSYCH (7,000)
Lecture 7

Psychology 2030A/B Lecture Notes - Lecture 7: Coronary Circulation, Atherosclerosis, Biofeedback

Course Code
David Vollick

This preview shows page 1. to view the full 4 pages of the document.
Chapter 9- Physical Disorders and Health Psychology
Physical Disorders and Health: An Overview
Psychological, Behavioral, and Social Factors (Bio-psycho-social map)
Psychological Approaches to Health and Disease
o Behavioral medicine: prevention, diagnosis, treatment of medical illnesses
o Health Psychology: psychological factors in promotion of health- change life style
o Psychosomatic: problem; suggests no biological component
DSM-IV and Physical Disorders
o Coded on Axis III; may be playing a role in psychological disorders
o Recognize that psychological factors can effects medical conditions
Overview of Stress and the Stress Response
Nature of Stress
o Stress: Physiological response of an individual to a stressor; varies from person to person
Stress Response and the General Adaption Syndrome (Hans Selye)
o Phase 1: Alarm response (sympathetic nervous system arousal)
o Phase 2: State of resistance (mobilized coping and action)
o Phase 3: State of exhaustion (chronic stress, permanent damage)
Biology of Stress
The Function of the Hippocampus in HYPAC-Stress Response Cycle
o Stress activates the sympathetic branch of the AND
o Hypothalamus secretes corticotropin releasing factor, which activates the pituitary gland,
which activates the adrenal gland, which secretes cortisol activating the HPA axis
o The Hippocampus is very sensitive to cortisol and if stimulated, helps turn off the stress
o Chronic stress may damage cells in the hippocampus; interfering with stopping the HPA loop
Psychological and Social Factors: Their Relation to Stress Physiology
Primate Research: High and Low Social Status
o High cortisol is associated with LOW social status; cant get food
Fewer lymphocytes and immune suppression; prone to infection and illness
Less sensitive to cortisol= less efficiency in turning off the stress response
o Dominant males benefit form stability, predictability and controllability
The Immune System: Overview and its Functions
Function of the Immune System
o The keep us healthy; destroy pathogens; identify and eliminate antigens (foreign materials)
from the body
o Leukocytes (WBC) are primary agents
Leukocytes: Subtypes and Functions
o Killer T: Go after viruses and cancer
o Helper T: Tell the killer T to destroy and B cells to make antibodies
o Suppressor T: Suppresses production of antibodies when no longer needed
Stress dramatically and quickly alters immune function; chronic stress worse because it lasts longer
Acquired Immunodeficiency Virus (AIDS)
Nature of AIDS
o Diagnosed only when other disease occurs; studies show people who have been diagnosed still
have unprotected sex
o Median time from initial infection to full-blown AIDS is 7.3 -10 years
o Most die within 1 year of diagnosis
o 15% survive 5 years or longer; often exercise and eat well
o AIDS is 100% preventable; safe sex and not sharing meals
AIDS is influenced by psychosocial, behavioral and social factors
AIDS: Psychological Interventions
Psychological Interventions
You're Reading a Preview

Unlock to view full version