THE PSYCHOLOGY OF EMOTIONS
PSYCHOLOGY OF EMOTIONS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
the rat will starve to death
|
|
|
the rate will only eat when it is hungry
|
|
|
the rat will become obese
|
|
|
the rat’s blood glucose level will maintain constant
|
Detailed explanation-1: -When the ventromedial hypothalamus is damaged, an individual cannot feel sated after eating. This lack of satiety causes excessive hunger, overeating and weight gain, leading to obesity. Scientists know this because of extensive research conducted on rats with a damaged ventromedial hypothalamus.
Detailed explanation-2: -VMH has long been considered as the major brain structure for appetite control in energy homeostasis. Lesion of VMH leads to hyperphagia and morbid obesity, which is called as ‘hypothalamic obesity’. But the role of VMH on food intake and body weight in already obese individuals has not been fully delineated.
Detailed explanation-3: -Bilateral lesions in the satiety center in the ventromedial hypothalamus produce overeating and inactivity, leading to massive obesity. This model is an excellent one for most human obesity and has been reported to be associated with glomerular damage, proteinuria, and hypertension.