AP PSYCHOLOGY

MOTIVATION EMOTION AND STRESS

MOTIVATION AND EMOTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the lateral hypothalamus of a rat is destroyed:
A
The rat will only eat when it is hungry.
B
The rat will begin to feel full.
C
The rat will starve to death.
D
The rat will become obese.
Explanation: 

Detailed explanation-1: -starve to death. To elaborate, the lateral hypothalamus is responsible for both activating and inhibiting feeding behavior. Therefore, if a rat’s lateral hypothalamus was destroyed the rat will not feel hungry and will not initiate any feeding behavior.

Detailed explanation-2: -If the lateral hypothalamus is destroyed, a rat will refuse to drink until forced to do so.

Detailed explanation-3: -However, when the hypothalamus becomes injured, it can no longer accurately control your temperature. Therefore, you may experience frequent hot or cold flashes. A prolonged increase in core body temperature can lead to further brain damage. That’s why it is important to seek treatment as soon as possible.

Detailed explanation-4: -General Functions of the Lateral Hypothalamus LH neurons control feeding, blood pressure, heart rate, water intake and sodium excretion largely through the activation of adrenergic receptors (Shiraishi, 1991; Saad et al., 2000; Mendonca et al., 2018).

Detailed explanation-5: -The lateral hypothalamus is known for regulating metabolism and food intake. This was discovered by studies involving the effect of lesions in the lateral hypothalamus, which leads to reduced food intake and maintenance of the newly achieved reduced weight in obese rats.

There is 1 question to complete.