Lecture 5: Hunger and Eating

Question 1

Motivation

Answer 1

The physiological and psychological processes underlying the initiation of behaviours that direct organisms towards specific goals.

Question 2

Homeostasis

Answer 2

The body’s physiological processes that allow it to maintain consistent internal states in response to the outer environment.

Question 3

Drives

Answer 3

Physiological triggers that tell us we may be deprived of something and cause us to seek out what is needed.

Question 4

Incentives

Answer 4

Stimuli we seek to reduce drives.

Question 5

Type 1 diabetes

Answer 5

Auto-immune condition, pancreas is damaged and stops producing insulin.

Question 5

Allostasis

Answer 5

Motivation being influenced by the anticipation of future needs caused by stress.

Question 6

Type 2 diabetes

Answer 6

Insulin resistance due to lifestyle factors.

Question 7

Hypothalamus

Answer 7

Nuclei at the bottom of the brain with no blood barrier. Monitors blood glucose levels and can turn hunger on and off.

Question 8

Set-point theory

Answer 8

Each individual has an ideal body weight/set point, which is resistant to change.

Question 9

Obesity

Answer 9

A disorder of positive energy balance, in which energy intake exceeds energy expenditure.

Question 10

Anorexia nervosa

Answer 10

Self-starvation, intense fear of weight gain, denial of serious consequences.

Question 11

Bulimia nervosa

Answer 11

Characterized by periods of food deprivation, binge-eating and purging.