psych unit 8

• increase in insulin will lower blood sugar and trigger hunger
• stimulation of lateral hypothalamus tells someone to start eating
• instinct theory and drive reduction theory both emphasize psychological factors in motivation
• bulimia nervosa involves bingeing and purging
• homeostasis refers to the tendency to maintain a steady internal state
• ventromedial hypothalamus suppresses eating when stimulated
• sympathetic nervous system is involved in bringing about emotional arousal
• genuine illnesses that are caused by stress are called psychophysiological illnesses
• cannon-bard's theory emphasizes the simultaneous experience of the body's response and emotions
• AIDS affects the immune system
• instinct is an unlearned, complex behavior exhibited by all members of a species
• drive is an aroused motivational state created by a physiological need
• glucose is a major source of energy in our body
• basal metabolic rate is the best term for the body's resting rate of energy expenditure
• hypothalamus is the hunger control center
• hyperglycemia and diabetes occurs when blood sugar levels run too high
• ghrelin is a hormone that stimulates hunger and increases appetite, it is released by an empty stomach
• leptin is a protein hormone that increases metabolism and decreases hunger
• PYY is a digestive tract hormone that sends "I'm not hungry" signals to the brain
• self-esteem is our gauge of value and acceptance that we feel
• maslow's hierarchy of needs:

  1. physiological needs
  2. safety
  3. love and belonging
  4. esteem
  5. self-actualization
• drive reduction theory is a physiological need that creates a drive to satisfy a need
• optimum arousal theory is best suited for sensation seekers
• anger and fear do not pass through the thalamus, goes straight to the amygdala
• facial feedback is a psychological concept that predicts how smiling on the outside will make you feel feel better inside
• orexin is a hormone that is released by the lateral hypothalamus, stimulates appetite and hunger