...variability in the size of such online friendship networks was significantly correlated...to articulate and make visible their friendship networks, and it is apparent that there...individual defined by more intimate friendships. However, the grey matter density at...
Online social network size is reflected in human brain structure
+ Author Affiliations
- ↵*Author for correspondence (r.kanai@ucl.ac.uk; kanair@gmail.com).
Abstract
The increasing ubiquity of web-based
social networking services is a striking feature of modern human
society. The degree
to which individuals participate in these networks
varies substantially for reasons that are unclear. Here, we show a
biological
basis for such variability by demonstrating that
quantitative variation in the number of friends an individual declares
on
a web-based social networking service reliably
predicted grey matter density in the right superior temporal sulcus,
left middle
temporal gyrus and entorhinal cortex. Such regions
have been previously implicated in social perception and associative
memory,
respectively. We further show that variability in
the size of such online friendship
networks was significantly correlated with the size of more intimate
real-world social groups. However, the brain regions
we identified were specifically associated with
online social network size, whereas the grey matter density of the
amygdala
was correlated both with online and real-world
social network sizes. Taken together, our findings demonstrate that the
size
of an individual's online social network is closely
linked to focal brain structure implicated in social cognition.
- social networks
- brain structure
- individual differences
- personality
- superior temporal sulcus
- middle temporal gyrus
- Received September 20, 2011.
- Accepted September 30, 2011.
- This journal is © 2011 The Royal Society
This is an open-access article distributed
under the terms of the Creative Commons Attribution License, which
permits unrestricted
use, distribution, and reproduction in any medium,
provided the original work is properly cited.
下面這篇科普的寫法有些扭曲原作的意思翻譯也有些問題
《英對照讀新聞》Brain Size Tells How Many Friends a Person Has 腦的大小透露一個人有多少朋友
The larger your brain size is, the more the number of friends you have：this is what is being said by a team of researchers from the University of Oxford.
你的腦越大，你就有越多朋友：牛津大學研究團隊是這麼說的。
Keeping up friendships takes brain power, research found, and people with real friends - as opposed to pals on social network sites - have to employ more cognitive skills to understand what someone is thinking.
研究發現，保持友誼耗費大腦的力量，而且擁有真正的朋友－－而非社群網站上的夥伴－－必須運用更多認知技巧來了解某人在想什麼。
Researchers have found a link between the number of friends people have and the size of their orbital prefrontal cortex. Tests were conducted on 40 people, with scientists taking anatomical MR images of their brains to measure the size of their prefrontal cortex, which is used for high-level thinking.
研究人員發現朋友數與大腦前額葉皮質區的大小有關聯。科學家在40人身上測試，以核磁共振攝影照他們的大腦，測量他們用來進行高層級思考的前額葉的尺寸。
Participants were asked to make a list of people they had social - rather than professional - contact with over a seven day period. They also took a test to determine how competent they were at ’mentalising’, which is the capacity to understand what another person is thinking - a crucial aspect in how people handle the social world.
參與者被要求列出他們在7天內有社交接觸而非工作接觸的人名，他們也參與測試，了解他們的「認知」能力有多強，所謂的認知能力就是了解其他人在想什麼的能力，這是人們應對社交世界的一個關鍵面向。
Results - published in the journal Proceedings of the Royal Society B - showed a connection between people with a large friendship group and a larger prefrontal cortex.
刊登在「皇家學會學報—生物學」的研究結果顯示，朋友群很大的人，前額葉也大。
新聞辭典
tell：動詞，分辨、知道。例句：I could tell（that）you were unhappy.（我看得出你不快樂。）
as opposed to：片語，相對於，而非。例句：I’d prefer to go on holiday in May, as opposed to September.（我比較想在5月度假，而不是9月。）
competent：形容詞，有能力的，能勝任的。例句：I wouldn’t say he was brilliant but he is competent at his job.（我不會說他聰明，不過他能勝任他的工作。）
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