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  3. Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recent

Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recent

admin2012-05-04  69
问题     Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recently, scientists have found a direct【C1】______ between the number of Facebook friends a person has and the size of【C2】______ brain regions. The study also shows the more Facebook friends a person has, the more real-world friends he is【C3】______to have.
    Facebook users who have a【C4】______ of friends also tend to have smaller circles of friends in the real-world and,【C5】______ those who have thousands of friends on Facebook are likely to have larger circles offline, according to the study. The findings support the【C6】______ that most Facebook users use the site to【C7】______ their existing, real-life social relationships, maintaining or reinforcing these friendships,【C8】______creating a network of entirely new,【C9】______friends.
    The researchers scanned the brains of 125 university-aged Facebook users,【C10】______these scans to the size of their friend networks online and the real-world. Those with larger Facebook networks had larger amounts of grey matter in several regions of the brain. One of these regions, the amygdala, is【C11】______with processing memory and emotional responses. Pairing this【C12】______ another recent study, the researchers show increased volume grey matter in the amygdala【C13】______a larger network of real-world friends.【C14】______ these studies show a large network of online friends also point to an increased volume of grey matter—【C15】______ information processing occurs. In addition to brain scans, the participants were asked questions【C16】______to compare the size of their online networks to the size of their real-world networks.
    The study【C17】______ the correlation between the number of friends online【C18】______ offline. Still, it is not possible from the【C19】______to say whether having more Facebook friends makes the regions of the brain larger【C20】______ whether some people are " hardwired" to have more friends.
【C14】
选项 A、Otherwise
B、Moreover
C、Sometimes
D、Together
答案D
解析 副词辨析题。句意为：这些研究共同显示，网上朋友圈大也能指向灰质的增多，而信息处理就发生在这里。本段中提到了不止一项研究，而根据前一句可知，这研究的发现彼此支持，相互认同，得出的结论较为接近，本句也是讲述这些研究发现的共同之处，因此选择together。otherwise“除非”、moreover“此外”和sometimes“有时候”，均可排除。
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