Chapter 10: Motivation and Emotion Flashcards
Define homeostasis
state of physiological equilibrium or stability
define drive
internal state of tension that motivated an organism to engage in activates that will reduce the tension
Explain Drive Theory
there is tension that disrupts the equilibrium, the individual will experience a drive to reduce the tension. This theory emphasizes internal states of tension to motivate people. Does not explain the drive for knowledge.
Explain incentive theory
Does not consider homeostasis. Emphasizes how external stimuli create motivation and drive. Uses Expectancy-Value models of motivation.
Describe Expectancy-Value Models of Motivation
models of motivation that account for realisticness. Understands that not all goals are achievable and courses of action depend on 2 factors.
- expectancy about chances of success
- value of desired incentive
describe evolutionary theory
motives are products of evolution, this can explain motives for affiliation, achievement, dominance, aggression and sex
explain the brain and bodies influence on hunger
hypothalamus affects hunger. Hormones (leptin) influences hunger regulation via information to the brain about the body’s fat reserves.
Explain how environment can affect hunger regulation and the 3 key environmental factors.
cues associated with eating can influence hunger (ie. photos of food) 3 key environmental factors 1. availability of food 2. learned preferences and habits 3. stress
describe how the availability of food affects hunger (5)
palatability: good tasting food makes you want to eat more
Quantity available: eat the amount given, finish the plate (bin model)
Variety: eat more if there is variety, same thing = sick of the food easily (sensory-specific satiety)
Presence of Others: eat more with people, use them as a guild for how much to eat
Stress: Stress causes you to eat more
Describe how learned preference and habits affect hunger
food preference is learned and influenced by culture
can have preferences from birth
humans prefer fatty things due to genetics and evolutionary history
explain obesity in humans
causes by history of competition for unreliable food sources causing individuals to consume more when they don’t need to.
Can be predispositioned by genetics
excessive eating and no exercise
body is wired to resist weight loss more than weight gain
diets can cause weight gain
what is set-point theory?
body monitors fat cell levels to keep individuals at a stable weight
explain parental investment theory
species mating patterns depend on what each sex has to invest in terms of time, energy and survival risk to produce and nurture offspring.
describe the parental investment theory of males and females
Males
Biological reality: little investment of time, energy and risk
Evolutionary significance: seeking more partners with high reproductive potential
Behavioural Outcomes: more interest in uncommitted sex, sex with more people, looks for youth and attractiveness in partners
Females
Biological reality: substantial investment of time, energy and risk
Evolutionary significance: seeking partners willing to invest material resources in offspring
Behavioural Outcomes: less interested in uncommitted sex, smaller number of sex partners, looks for income status and ambition.
Describe affiliation motive
ostracism affects mood and behaviour, causes increased activity in parts of the brain associated with physical pain