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Motivation (BASIC PRINCIPLES (Motivation energizes actions
Sometimes…
Motivation
BASIC PRINCIPLES
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Internal states influence the degree of motivation
Example: food deprivation increases motivation to eat,
hungry animal will seek food, satiated animal will not
Desire to maintain homeostasis (Key Theme)
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POSITIVE EMOTIONAL
STATE
A central state occurring in anticipation of, or in response to, rewards
Rewards are stimuli that motivate behavior
Behaviors that are rewarded are more likely to be repeated
Motivation for adaptive behaviors increases survival
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OPIOIDS AND “LIKING”
Liking – pleasure, hedonic value
Wanting – level of desire, craving, incentive salience
Only know about wanting from past experience
Hence DA is important in learning value of stimulus
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