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Discuss the role of neural mechanisms in eating and satiation (24 Marks)
Homeostatic mechanisms maintain a consistent natural environment for the body. Thus
food intake is regulated to maintain normal levels and a set weight for individuals. The body
has evolved two separate systems, one for turning on eating and…

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The view that the LH served as an on switch for eating turned out to also be problematic.
Damage to the LH causes deficits to other aspects of behaviour ­ not just eating. Ghrelin
and libido for example may also be affected. Also more recent research has shown that
eating…

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whereas others are able to discipline themselves and this cannot be explained by the
hypothalamus alone.



19/24 Grade A AQA A

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