Eating Behaviour- Neural

Question 0

What is the function of the hypothalamus

Answer 0

Responsible for main physiological functions eg food and water

Question 1

What is homeostatis

Answer 1

The process which ensures the body is kept at optimum levels eg ensures glucose is kept within limits so body can work efficiently

Question 2

What are the two parts of the dual feeding centre

Answer 2

The lateral hypothalamus

Ventro medial hypothalamus

Question 3

What is the role of the lateral hypothalamus

Answer 3

The feeding centre
Activated when blood sugar level is low
Associated with making someone eat and feelings of hunger

Question 4

What is the role of the ventro medial hypothalamus

Answer 4

Satiety centre
Associated with feelings of full and stopping someone eat
The glucose theory stars that hunger arises when glucose levels are low. The glucoreceptors in vmh are responsible for monitoring glucose levels

Question 5

What is the role of leptin

Answer 5

Indicates when calorific storage is high
When we do not eat body uses up fat cells and they cease to release leptin
Drop in leptin detected by hypothalamus which initiates hunger

Question 6

What is the role of ghrelin

Answer 6

Released in the fat cells

Amount released is directly proportional to emptiness of stomach

Question 7

Who are the researchers into neural explanation of eating behaviours

Answer 7

Lashley
Cummings
Bash

Question 8

What did Lashley do

Answer 8

Rats were trained to negotiate maze to gain food
Lesioned different parts of the brain to see effect
Found that those with damaged LH stopped eating spontaneously
Thoes is damaged vmh ate to excess

Question 9

What did Cummings do

Answer 9

6 males
Monitored ghrelin levels after lunch every 5 mins until they requested evening meal
Found that ghrelin levels fell after lunch and were lowest after 70mins
Increased when they requested evening meal
Correlated with hunger

Question 10

What did bash do

Answer 10

Transferred the blood of a satiated dog into a starving dog
Glucose levels in starving dog will be normal
The contractions of hunger stopped
Supports glucose theory

Question 11

Evaluation into neural explanation of eating behaviour

Answer 11

Supporting research 
Too simplistic 
Deterministic 
Possible practical applications 
Animal research 
Can over ride the physiological drive