6. Role of Lateral Hypothalamus in controlling eating behaviour
Activated by low levels of blood glucose causing feelings of hunger so the individual starts eating
Activated high levels of blood sugar causing feelings of satiety (fullness) so the individual starts eating
Activated by low levels of blood glucose causing feelings of satiety so the individual starts eating
Activated high levels of blood sugar causing feelings of satiety (fullness) so the individual stops eating
7. Issue of the Glucostat theory
It doesn't include insulin and glucagon's part in regulating blood sugar levels and therefore control of eating behaviour
Cannot be considered adaptive like it suggests it is as it should anticipate low levels of blood sugars instead of waiting till levels of blood sugar are low
It's too simplistic to suggest that this is how blood glucose is controlled
8. What is Leptin's role in controlling eating behaviour?
It stimulates the hypothalamus decreasing appetite
It's produced by fat cells and impulses are sent to the brain about the amount of fat cells present, obese rats have a high levels of leptin
It's produced by fat cells and impulses are sent to the brain about the amount of fat cells present, obese rats have a deficiency in leptin
It stimulates the hypothalamus increasing appetite
9. Which study found that when the LH was damaged it caused rats to stop eating but when it was stimulated it caused rats to overeat?
Heatherington and Ranson
Lutter et al.
Zhang et al.
10. Role of Ventromedial Hypothalamus
Activated by low levels of blood glucose causing feelings of satiety so the individual starts eating
Activated high levels of blood sugar causing feelings of satiety (fullness) so the individual stops eating
Activated by low levels of blood glucose causing feelings of hunger so the individual starts eating
Activated high levels of blood sugar causing feelings of satiety (fullness) so the individual starts eating
11. What did Yang et al. find?
when rats were injected with leptin they lost weight
Neuropeptide Y is produced by the hypothalamus leading to overeating then when abdominal fat is gained, the fat produces neuropeptide Y leading to more overeating
When Neuropeptide Y is injected into the hypothalmus of rats it causes overeating
When additional neuropeptide Y was injected into rat's hypothalamus it led to obesity
12. Which study found that when rats were injected with leptin they lost weight?
