Indifference and/or euphoria are/is most often associated with lesions of the:
(a) left cerebral hemisphere
(b) right cerebral hemisphere
(c) corpus callosum
(d) cerebellum
Answer (2)
Lesions in the right cerebral hemisphere are most often associated with indifference and euphoria. The right hemisphere plays a significant role in emotional regulation. Thus, the correct answer is (b) right cerebral hemisphere.
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The question is asking about certain emotional responses that are associated with lesions in specific parts of the brain. The key terms in this context are 'indifference' and 'euphoria.' These emotional changes are typically associated with damage to the right cerebral hemisphere.
Here's a step-by-step explanation of why the correct answer is the right cerebral hemisphere (option b):
Understanding Brain Hemispheres :
The brain is divided into two hemispheres, the left and the right, each responsible for various functions. The left hemisphere is generally involved in language, mathematics, and logical reasoning, whereas the right hemisphere is more associated with emotion, intuition, and creativity.
Right Hemisphere Functions :
The right hemisphere is primarily responsible for processing emotions, spatial abilities, and facial recognition. It plays a vital role in interpreting emotional expressions and the perception of emotional context.
Impact of Lesions on the Right Hemisphere :
Lesions in the right hemisphere can lead to distinctive changes in behavior and personality. One common result is 'affective indifference' or a lack of emotional response to events, which is often paired with inappropriate emotional responses, like euphoria.
Emotional Changes :
The indifference might present as an inability to respond emotionally to situations that would normally evoke an emotional response. Euphoria or inappropriate emotional expressions can also result from the brain's impaired regulation.
Conclusion :
Given these associations, when someone presents with lesions in the right hemisphere, they may display these emotional changes. Thus, this aligns with the symptoms given in the question.
Therefore, the correct answer is option (b) the right cerebral hemisphere.
