首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
What new research reveals about the adolescent brain. We ’re learning that the teen years are a period of crucial brain developm
What new research reveals about the adolescent brain. We ’re learning that the teen years are a period of crucial brain developm
admin
2020-08-21
48
问题
What new research reveals about the adolescent brain. We ’re learning that the teen years are a period of crucial brain development subject to a host of environmental and genetic factors. This emerging research shed light on a discovery that our brains are not finished maturing by adolescence, brains are only about 80 percent of the way to maturity, it takes until the mid-20s, and possibly later, for a brain to become fully developed.
An excess of gray matter (the stuff that does the processing) at the beginning of adolescence makes us particularly brilliant at learning, but also particularly sensitive to the influences of our environment. Our brains’ processing centers haven’t been fully linked yet, particularly the parts responsible for helping to check our impulses and considering the long-term repercussions of our actions.
It’ s partially because of this developmental timeline that a teen can be so quick to think a harsh remark, or a biting insult, and so uninhibited in firing it off at the nearest unfortunate target. Instead, the full developed brain regions of an adult might stop himself from saying something cruel.
In a paper published last year, Dr. Jay Giedd, wrote that, gray-matter (the stuff that does the processing) volume peaks around or just before the beginning of puberty, and then continuously declines. In contrast, white matter (the stuff that helps connect areas of the brain) increases right up to, and beyond, the end of puberty.
These adolescent brain developments don’t happen to all parts of the brain at the same time. "The order in which this maturation of connection goes, is from the back of the brain to the front of the brain," says Jensen. And one of the last parts to mature is the frontal lobe, a large area responsible for moderating reward, planning, impulsiveness, attention, acceptable social behavior, and other roles that are known as executive functions. Unfortunately, it’ s just these sorts of behaviors that teenage brains are not fully endowed to deal with—and the consequences are potentially fatal when it comes to high-risk behavior like drinking and driving.
This blast of teen-brain change is compounded by profound social and psychological shifts. Of particular importance is that adolescence is the time when we develop stronger social connections with our peers. Healthy social relationships have a positive effect on how an adolescent navigates through a tumultuous period of life. But at the same time, this reliance on friends makes young people susceptible to the influence of peer pressure, even when it is indirect.
With the maturity of the front lobe, teenagers will______.
选项
A、plan drive and drink
B、will avoid arguing
C、schedule their time efficiently
D、never get into fight
答案
C
解析
根据题干关键词定位到文章第五段。由该段可知,青少年大脑额叶发育成熟之后,可以更好地安排时间,提前规划路线,控制情绪,避免纠纷。如果未成熟时,有些行为若处理不当其结果是致命的,比如酒驾,故C项“有效地安排他们的时间”与原文相符。A项“规划驾驶和饮酒”、B项“避免争吵”和D项“从不卷入打斗”均与原文相反,故选C。
转载请注明原文地址:https://kaotiyun.com/show/NP1Z777K
0
考研英语一
相关试题推荐
Oneofthemostinterestingofallstudiesisthestudyofwordsandwordorigins.Eachlanguageis【C1】______ofseveralearlier
Oneofthemostinterestingofallstudiesisthestudyofwordsandwordorigins.Eachlanguageis【C1】______ofseveralearlier
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smostAm
Nearlytwo-thirdsofbusinessesintheUKwanttorecruitstaffwithforeignlanguageskills.Frenchisstillthemosthighlypr
Oldstereotypesdiehard.Pictureavideo-gameplayerandyouwilllikelyimagineateenageboy,byhimself,compulsivelyhammer
"Thereisoneandonlyonesocialresponsibilityofbusiness,"wroteMiltonFriedman,aNobelprize-winningeconomist,"Thatis,
"Thereisoneandonlyonesocialresponsibilityofbusiness,"wroteMiltonFriedman,aNobelprize-winningeconomist,"Thatis,
"Thereisoneandonlyonesocialresponsibilityofbusiness,"wroteMiltonFriedman,aNobelprize-winningeconomist,"Thatis,
In1784,fiveyearsbeforehebecamepresidentoftheUnitedStates,GeorgeWashington,52,wasnearlytoothless.Sohehireda
Inorderto"changelivesforthebetter"andreduce"dependency",GeorgeOsborne,ChancelloroftheExchequer,introducedthe"
随机试题
房水循环障碍导致()
党在社会主义初级阶段的奋斗目标是()
通过控制层面选择梯度场和射频脉冲来完成MR图像层面和层厚的选择。在完成了层面选择后还必须进行层面内的空间定位编码。层面内的空间定位编码包括频率编码和相位编码。频率编码让来自不同位置的MR信号包含有不同的频率,采集到混杂有不同频率的MR信号后,通过傅里叶变换
进入6月份以来,西北某农场多头牛出现发热,病初体温升高到40~42℃,为稽留热,4~10天内维持在41℃上下。大多数病牛一侧肩前或腹股沟浅淋巴结肿大,初为硬肿,有痛感,后渐变软,常不易推动(个别牛不见肿胀)。病牛迅速消瘦,可视黏膜苍白,部分牛死亡。该病
如果桩基直径为0.4m,则基桩极限侧阻力标准值与下列( )项值接近。当Qsk=440.59kN,Qpk=301.24kN时基桩的竖向承载力设计值与下列( )项值接近。
IG541混合气体灭火系统及高压二氧化碳灭火系统,采用其充装的灭火剂进行模拟喷气试验。试验采用的储存容器数应为选定试验的防护区或保护对象设计用量所需容器总数的5%,且不少于()个。
“做老实人,说老实话,办老实事”,这句话体现的会计职业道德规范内容是 ( )。
在国境口岸或者交通工具上发现啮齿动物有反常死亡或者死因不明的,国境口岸有关单位或者交通工具的负责人,必须立即向卫生检疫机关报告,迅速查明原因,实施卫生处理。( )
哈尔沃金斯是圣安医院的采购主任。2008年2月底的时候,他就准备为一次性外科手术中选定一家供应商。圣安医院的两个供应商都认为这份合同会落在他们手中,而哈尔也不知道应该如何处理。圣安医院圣安医院是一家国办的教学医院,拥有24间手术室和910张病床。在过去十
社会主义社会和共产主义社会的关系是
最新回复
(
0
)