What Would Be the Most Likely Result of a Lesion

question 25

Multiple Choice

What would be the most likely result of a lesion in the parabrachial nuclei in a rat being tested for their Pavlovian fear conditioning?

• A) the rat would have reduced freezing behavior in response to the tone because of a lack of input central nucleus of the amydala
• B) the rat would have increased freezing behavior in response to the tone because of an increase of input central nucleus of the amydala
• C) the rat would have no change or very little change in their freezing behavior because of multiple inputs to the central nucleus of the amydala
• D) the rat would have an inability to sense pain and therefore be conditioned with a foot shock

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