Questions 5 through 7 refer to the following. Researchers measured changes in neural firing in the frontal lobes for ten rats that were exposed to stimulants. The researchers used an MRI that Indicates brain activity with colors Normal brain activity is indicated by greens and yellows. High brain activity is indicated by reds and oranges. Low brain activity is indicated by grays and blues. All the rat's brains showed normal activity prior to being exposed to the stimulant. Mark for Review Which of the following is a prediction that could be made about the activity of the rats' brains when exposed to the stimulart? A The MRI will show more greens and yellows when exposed to the stimulants. B The Mal will show more blues and gays when exposed to the stimulart C The MRI will show no difference in nevel activity D The MRI should show more oranges and reds when exposed to the stimulant.

Question

Questions 5 through 7 refer to the following. Researchers measured changes in neural firing in the frontal lobes for ten rats that were exposed to stimulants. The researchers used an MRI that Indicates brain activity with colors Normal brain activity is indicated by greens and yellows. High brain activity is indicated by reds and oranges. Low brain activity is indicated by grays and blues. All the rat's brains showed normal activity prior to being exposed to the stimulant. Mark for Review Which of the following is a prediction that could be made about the activity of the rats' brains when exposed to the stimulart? A The MRI will show more greens and yellows when exposed to the stimulants. B The Mal will show more blues and gays when exposed to the stimulart C The MRI will show no difference in nevel activity D The MRI should show more oranges and reds when exposed to the stimulant.

Answer 1

The correct answer is D. The MRI should show more oranges and reds when exposed to the stimulant.Explanation:The question states that the researchers measured changes in neural firing in the frontal lobes of the rats after they were exposed to stimulants. The MRI used to measure brain activity indicates that normal brain activity is shown by greens and yellows, while high brain activity is indicated by reds and oranges. Since the rats' brains showed normal activity prior to being exposed to the stimulant, it can be predicted that the MRI would show more oranges and reds, indicating high brain activity, when the rats are exposed to the stimulant.

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