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Young girls at high risk for depression appear to have a malfunctioning reward system in their brains, a new study suggests. The
Young girls at high risk for depression appear to have a malfunctioning reward system in their brains, a new study suggests. The
admin
2011-03-11
16
问题
Young girls at high risk for depression appear to have a malfunctioning reward system in their brains, a new study suggests. The finding comes from research that【1】a high-risk group of 13 girls, aged 10 to 14, who were not depressed but had mothers who【2】recurrent depression and a low-risk group of 13 girls with no【3】or family history of depression. Both groups were given MRI brain【4】while completing a task that could【5】either reward or punishment.
【6】with girls in the low-risk group, those in the high-risk group had【7】neural responses during both anticipation and receipt of the reward.【8】, the high-risk girls showed no【9】in an area of the brain called the dorsal anterior cingulated cortex (背侧前扣带皮质), believed to play a role in【10】past experiences to assist learning.
The high-risk girls did have greater activation of this brain area【11】receiving punishment, compared with the other girls. The researchers said that this suggests that high-risk girls have easier time【12】information about loss and punishment than information about reward and pleasure.
"Considered together with reduced activation in the striatal (纹状体的) areas commonly observed【13】reward, it seems that the reward-processing system is critically【14】in daughters who are at elevated risk for depression,【15】they have not yet experienced a depressive【16】," wrote Ian H. Gotlib, of Stanford University, and his colleagues. "【17】, longitudinal studies are needed to determine whether the anomalous activations【18】in this study during the processing of【19】and losses are associated with the【20】onset of depression," they concluded. The study was published in the April of the Archives of General Psychiatry.
选项
A、after
B、among
C、with
D、during
答案
D
解析
本句再一次说明实验结果,during reward(在接受奖赏的时候),符合整句的逻辑,故[D] during正确。本文的实验都是在受到某种刺激的过程中来检测大脑某部位的反应,而不是事后的反应,故排除[A]after。[B] among通常表示在三者或三者以上之间,用法举例:She lives in that house among the trees.她住在树林中的那座房子里。[C] with用法举例:Would you like to go with us?你愿意和我们一起去吗?
转载请注明原文地址:https://kaotiyun.com/show/jEp4777K
0
考研英语一
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