AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

STUDYING THE BRAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pleasure sensors in the brain appear to be concentrated most heavily in what section?
A
corpus callosum
B
medulla
C
motor cortex
D
hypothalamus
Explanation: 

Detailed explanation-1: -One human brain site that appears especially linked to pleasure in neuroimaging studies is in orbitofrontal cortex, particularly in a mid-anterior subregion (Figures 2 and 3).

Detailed explanation-2: -The nucleus accumbens is an area found in the ventral striatum that is strongly associated with motivation and reward and is part of complex circuits involving the amygdala and the hippocampus. The activation of the nucleus accumbens causes dopamine levels in this region to rise.

Detailed explanation-3: -Other roles of the hypothalamus Your hypothalamus also produces these hormones: Dopamine. Dopamine is the “feel-good” hormone. It gives you a sense of pleasure.

Detailed explanation-4: -The ventral tegmental area (VTA) and the nucleus accumbens are the two major centres in this circuit, but it also includes several others, such as the septum, the amygdala, the prefrontal cortex, and certain parts of the thalamus.

Detailed explanation-5: -The hypothalamus is part of the diencephalon, a region of the forebrain that connects to the midbrain and the cerebrum. The hypothalamus helps to process sensory impulses of smell, taste, and vision. It manages emotions such as pain and pleasure, aggression and amusement.

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