首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 Sleep Lets Brain File MemoriesTo sleep.Perchance to file?Findings publi...
共用题干 Sleep Lets Brain File MemoriesTo sleep.Perchance to file?Findings publi...
admin
2020-12-24
59
问题
共用题干
Sleep Lets Brain File Memories
To sleep.Perchance to file?Findings published online this week by the Proceedings of the National Academy of Science further support the theory that brain organizes and stows memories formed during the day while the rest of the body is catching zzz's.
Gyorgy Buzsaki of Rutgers University and his colleagues analyzed the brain waves of sleeping rats and mice.Specifically,they examined the electrical activity emanating from the somatosensory neocortex(an area that processes sensory information)and the hippocampus,which is a center for learning and memory.The scientists found that oscillations in brain waves from the two regions appear to be intertwined.So-called sleep spindles(bursts of activity from the neocortex)were followed tens of milliseconds later by beats in the hippocampus known as ripples.The team posits that this interplay between the two brain regions is a key step in memory consolidation.
A second study,also published online this week by the Proceedings of the National Academy of Sciences,links age-associated memory decline to high glucose level.
Previous research had shown that individuals with diabetes suffer from increased memory problems.In the new work,Antonio Convit of New York University School of Medicine and his collaborators studied 30 people whose average age was 69 to investigate whether sugar levels,which tend to increase with age,affect memory in healthy people as well.The scientists administered recall tests,brain scans and glucose tolerance tests,which measure how quickly sugar is absorbed from the blood by the body's issues.Subjects with the poorest memory recollection,the team discovered,also displayed the poorest glucose tolerance.In addition, their brain scans showed more hippocampus shrinkage than those of subjects better able to absorb blood sugar.
"Our study suggests that this impairment may contribute to the memory deficits that occur as people age,"Convit says."And it raises the intriguing possibility that improving glucose tolerance could reverse some age一associated problems in cognition?”Exercise and weights control can help keep glucose level in check,so there may be one more reason to go to the gym.
选项
What is the relation of memory to glucose tolerance,as is indicated by a research mentioned in Paragraph 4?
A:People with poor memory have high glucose tolerance.
B:People with good memory have low glucose tolerance.
C:Memory level has nothing to do with glucose tolerance.
D:The poorer the memory,the poorer the glucose tolerance.
答案
D
解析
由文章第一段内容可知,科学新发现进一步支持了一种理论,即当人体进人睡眠状态时,大脑对在白天形成的记忆进行组织和储存。"Tosleep.Perchancetofile?”由莎士比亚的名句“Tosleep:perchancetodream."(睡眠也许要做梦)转化而来,它在本句的意思是:睡觉也许要记忆整理,故选A。
第二段提到科学家分析了老鼠的脑电波,尤其是从躯体感觉新皮层和海马体两个区域发出的脑电波。该段最后指出,这两个大脑区域的活动是相互作用的;第二段并未提及两者中的任何一个起主要作用。
由文章第四段倒数第二句话“Subjectswiththepoorestmemoryrecollection,theteamdiscovered,alsodisplayedthepoorestglucosetolerance.”可知,D项正确。
第四段最后一句“…theirbrainscans…中their指上句中的“Subjectswiththepoorestmemoryrecollection",所以B项正确?
文章最后一段提到,锻炼身体和控制体重能够限制葡萄糖浓度,因而,去健身房就有了另外一个原因。第二篇本篇文章主要讲述了大量发展中国家的艾滋病患者由于没有得到治疗而死去的情况,接着指出应加强对艾滋病患者的救治,并提出了三种具体的救治办法。
转载请注明原文地址:https://ti.zuoweng.com/ti/nFEQKKKQ
相关试题推荐
TryingtoFindaPartner Oneofthemoststrikingfindingsofarecentpoll...
TryingtoFindaPartner Oneofthemoststrikingfindingsofarecentpoll...
TryingtoFindaPartner Oneofthemoststrikingfindingsofarecentpoll...
TryingtoFindaPartner Oneofthemoststrikingfindingsofarecentpoll...
TryingtoFindaPartner Oneofthemoststrikingfindingsofarecentpoll...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
共用题干 WhereDidAlltheShipsGo?TheBermudaTriangle(三角区)isone________(1)t...
随机试题
玻璃电极在使用前一定要在水中浸泡几个小时,目的在于()。 A.清洗电极 B.
原发性生长激素缺乏症的临床表现是
简述影响遗忘进程的因素。
某女士因患有Ⅲ度子宫脱垂,行手术治疗,术后护士应指导其采取的体位是
关于高压蒸汽灭菌法,不正确的描述是 A.灭菌效果最可靠 B.适用于对耐高温和
引起咽结合膜热的病毒是A、科萨奇病毒B、麻疹病毒C、偏肺病毒D、呼吸道合胞病毒E、腺病毒
某女士,29岁,第一胎妊娠26周,定期接受孕期检查,保健护士向她传授自行监测胎儿宫内状况的常用方法是()。A.感觉腹部增大的情况B.关注体重增长的速度
在下列关于A省的说法中,不能从图中得出结论的是()。 A.“十五”时期的GDP总量大约是“九五”时期的1.65倍 B.生产总值年均增长除了“七五...
甲:如果没有爱迪生,人类还将生活在黑暗中。理解这样的评价,不需要任何想象力。爱迪生的发明,改变了人类的生存方式。但是,他只在学校中受过几个月的正式教育。因...
以下说法中甲注册会计师认为正确的是( )。A、对于所有权不属于A公司的存货,为了确定其数量、金额的正确性,需要将其纳入存货的盘点范围B、如果观察程序表明A公