Leptin
- Leptin is a protein oroduced by bloated fat cell.
- Hypothalamus senses rises in lepton and will curb eating and increase activity.
Set Point
- Hypothalamus acts like a thermostat.
- We are meant to be in a certain weight range.
- When we fall below weight, our body will increase hunger and decrease energy expenditure (basic metabolic rate).
Body Chemistry:
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Hormone
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Tissue
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Response
|
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Orexin Increase
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Hypothalamus
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Increase Hunger
|
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Ghrelin
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Stomach
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Increase Hunger
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Insulin
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Pancreas
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Increase Hunger
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Leptin
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Fat Cells
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Decrease Hunger
|
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PPY
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Digestive
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Decrease Hunger
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The Psychology of Hunger
Externals: people whose eating is triggered more by the presence of food than internal factors.
Eating Disorders
Bulimia Nervosa: Characterized by binging ( eating large amounts of food and purging- getting rid of food).
Anorexia Nervosa: Starve themselves to below 85% of their normal body weight. They see themselves as fat and a vast majority are women.
Because i often get them both mixed up:
Achievement Motivation
Intrinsic Motivators
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Extrinsic Motivators
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Rewards we get internally such as enjoyment or satisfaction.
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Rewards that we get for accomplishments from outside ourselves.
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Theory X
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Theory Y
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Managers believe that employees will work only if rewarded with benefits
or threatened with punishment.
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Mangers believe that employees are internally motivated to do good
work and policies should encourage internal motive.
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Think employees are Extrinsically motivated.
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Intrinsic motivation
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Only interested in Maslow’s lower needs.
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Interested in Maslow’s higher needs.
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