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Chapter 8: Problem 7

True or false? Evidence suggests that obesity may be associated with reduced dopamine function in the brain.

Short Answer

Expert verified
True. Research studies, such as the one by Volkow et al. (2008), have shown that obesity may be associated with reduced dopamine function in the brain, specifically in the striatum region. This could potentially lead to overeating and further weight gain. However, further studies are needed to understand the underlying mechanisms with more precision.

Step by step solution

01

Understanding the statement

The given statement says that there is evidence suggesting a possible association between obesity and reduced dopamine function in the brain. Dopamine is a neurotransmitter that plays an essential role in the reward and motivation system in the brain. So, to analyze this statement, we need to find evidence related to this connection.
02

Discussion of evidence

Research studies have shown that obesity may indeed be associated with reduced dopamine function in the brain. For instance, a study by Volkow et al. (2008) found that obese individuals have fewer dopamine receptors in their brain, specifically in the striatum region. This reduced dopamine function could lessen the feeling of reward and satisfaction after eating, leading to overeating and further weight gain. Other studies have also supported this relationship between obesity and reduced dopamine function, although the exact nature and mechanisms involved are still being investigated.
03

Conclusion

Based on the evidence from research studies, the statement that obesity may be associated with reduced dopamine function in the brain is found to be true. It is important to note that while there is evidence supporting the association, further studies are necessary to understand the underlying mechanisms with more precision.

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