Myers Unit 8 Flashcards
What is a need?
Physiological state that triggers motivational arousal.
What is motivation?
The need or desire that directs behavior towards a goal.
What is the definition of instinct? And what other name does it go by?
Genetically programmed behaviors (evolutionary perspective.)
Fixed-action pattern.
What is drive-reduction theory? How does it relate to homeostasis?
Drive-reduction theory is behavior driven by biological needs (hunger, thirst, sex.)
Based on the idea of homeostasis, we need to maintain a stable internal environment.
What is incentive theory?
Incentive theory pulls us towards a goal through external rewards.
What is optimum arousal theory?
Optimum arousal theory is basically seeking arousal do to boredom.
Achievement- oriented people are motivated through high arousal.
Experiment: rats would go through a maze and become curious of the small shock they received in one corner.
What is mallows hierarch of needs? (1954)
Top of pyramid ^
Self actualization: morality, creativity, spontaneity, and problem solving.
Esteem: self-esteem, confidence achievement, and respect.
Love/belonging: friendship, family, and sexual intimacy.
Safety: security of- body, employment, resources, health, and property.
Physiological: breathing, food, water, sex, sleep, and homeostasis.
Bottom of pyramid ^
What is Yerkes-Dodson law?
Complex tasks: require low emotional arousal
Simple tasks: can be sustained with high e emotional arousal
Performance is usually best at moderate to high arousal
What are two criticisms of the hierarchy of needs?
- Starve or get arrested for political protest?
2. Women stay with their abusers?
How does the Washburn and Cannon’s study relate to hunger and the stomach?
Hunger pangs indicate feeling the need to eat.
What is the function of the lateral hypothalamus?
Stimulation = desire to eat
Damaged = no desire to eat
What is the function of the ventromedial hypothalamus?
Stimulation = desire to stop eating
Damaged = never feel full
Glucose
Insulin converts glucose to fat.
Low glucose contributes to the feeling of hunger.
Insulin
Origin: pancreas
Function: increases hunger
Leptin
Origin: fat cells
Function: decreases hunger
Orexin
Origin: hypothalamus
Function: increases hunger
Ghrelin
Origin: stomach
Function: increases hunger
Obestatin
Origin: stomach
Function: sends out the “I’m full” signal to the brain
PYY
Origin: digestive tract
Function: decreases hunger
Set point
Genetically determined range of weight and temperature that the body will try to maintain for optimal health.
How does memory relate to hunger?
Excess of gherkin has been found to increase learning and memory capabilities.
Could potentially use on amnesia patients.
Anorexia nervosa
Less than 85% of the healthy weight.
Triggered by fear of weight gain.
Bulimia nervosa
Binge followed by purge through methods such as vomiting and abusing laxatives.
Can be accompanied by anorexia.
Binge- eating disorder
Eats large amounts of food in a short amount of time and do not purge