What is the difference between the brains of teenagers and adults?

2016-10-26 「 2225 words / 4 minute 」
What is the difference between the brains of teenagers and adults? .jpg
magazine
青少年通常被认为喜欢寻求刺激,不过有研究发现,他们的大脑善于从经验中学习,为他们走上社会作更好的准备。
Teenagers are often portrayed as thrill-seekers, but research suggests their brains are wired to learn from their experiences, which makes them better prepared for adulthood.
在一项小研究中,他们在一个看图游戏中比成年人表现的更好,脑部扫描数据显示大脑活动水平更高。
In a small study, they performed better than adults at a picture-based game and brain scans showed a higher level of brain activity.
来自哈佛大学、哥伦比亚大学和加利福尼亚大学的研究团队决定通过测试以验证,是否青少年典型的寻求奖赏的行为,会在他们从好或坏的结果中学习时更有帮助。
The research team, from Harvard, Columbia and California universities, set out to test whether adolescents' typical reward-seeking behaviour could also make them better at learning from good or bad outcomes.
他们邀请了年龄在13到17岁之间的41名青少年,以及年龄在20到39岁之间的31名成年人,来参加一个图片游戏,同时使用核磁共振成像技术来扫描每组中部分人员的大脑。
They asked 41 teenagers, aged 13 to 17, and 31 adults, aged 20 to 30, to play a game based on pictures while scanning some of each group's brains using MRI.
在游戏中,青少年组答对的题目更多,同时记忆力测试显示,他们在记住自己为何要选择某个答案的细节方面表现更好。
In the game, the teenagers got more answers correct and memory tests showed they were also better at remembering the detail of why they chose the answers they did.
研究指出,这意味着他们能更好的从经验中学习--作好充分准备,以便在成年后能离家独立。
The study said this meant they were better at learning from their experiences - which would equip them well for leaving home and gaining independence as adults.
当研究人员查看青少年的大脑扫描数据时,他们发现大脑有两个区域在活动--海马体和纹状体,而成年人的大脑主要使用纹状体。
When they looked at the teenagers' brain scans, the researchers found activity in two areas of the brain - the hippocampus and the striatum - whereas adults mainly used their striatum.
研究人员表示,这种正在发育的大脑中两个重要部分的连接,解释了为何青少年表现的更好。
They said these connections between two important parts of the growing brain explained why they performed better.
哈佛大学的心理学研究员朱丽叶·达维多表示,这项研究能为青少年教学带来新的启发。
Juliet Davidow, a psychology researcher at Harvard University, said the findings could inspire new ways of teaching teenagers.
“如果你构造出积极的事物,可能出现的情况就是,青少年将更好的记住学习经验相关的东西。在日常生活中,他们正在以与成年人不同的方式关注着周围的环境。”
"If you frame something positively, it could be the case that adolescents will remember things about the learning experience better. In everyday life, they're paying attention to their environment in a way that is different from adults."