Motivation 3 Flashcards
cannon
stomach contractions aka hunger pangs increase hunger
presence of food in stomach stops contractions and appeases hunger drive
insulin and glucagon
hormones secreted by pancreas to control levels of fats, proteins, and carbohydrates in the whole body, including glucose (blood sugar)
insulin v glucagon specific
insulin reduces level of glucose in bloodstream
glucagon increases level of glucose in bloodstream
leptin
hormone
one of factors that controls appetite
when released into bloodstream, signals hypothalamus that body has had enough food
ventromedial hypothalamus (VMH)
helps stop eating response when glucose levels go up
if don’t have, don’t stop eating (but picky eater)
lateral hypothalamus (LH)
seems to influence onset of eating when insulin levels go up
stop eating
weight set point
particular level of weight body tries to maintain
injury to hypothalamus changes this
basal metabolic rate (BMR)
rate at which body burns energy when a person is resting
if decreases, weight set point increases
if increases, weight set point decreases
social components of hunger
social cues classical conditioning conventions decrease stress/deal with emotions cultural and gender factors
obesity
body weight of person is 20% or more over the ideal body weight for that person’s height
significant factor is heredity, hormones also play a role, and overeating
cartoon characters influence children’s food and taste preferences
yes prefer (sugary) foods with characters on them
anorexia nervosa/anorexia
person (typically young and female) reduces eating to the point that their body weight is significantly low, or less than minimally expected
hormone secretion becomes abnormal, especially in thyroid and adrenal glands, heart muscles weak
obsessed with exercising and eating food
distorted body image
40-60% recover, highest mortality rate
bulimia nervosa/bulimia
person develops cycle of binging (overeating huge amounts of food in one sitting) and then using inappropriate methods for avoiding weight gain
purge food from body
similar to anorexia but usually older people, often normal weight
tooth decay, erosion of esophagus lining, more
similar treatment, SSRIs
binge prompters
anxious or sad mood, social stressors, feelings about body weight or image, intense hunger
binge continues bc lack of self control
binge-eating disorder
uncontrolled mine eating
but don’t purge or use other inappropriate methods for avoiding weight gain