困倦、发呆及记忆下降可能是老年痴呆的前兆
文章来源:未知 文章作者:meng 发布时间:2010-01-19 00:55 字体: [ ]  进入论坛
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Older people who have "mental lapses流逝,失效," or times when their thinking seems disorganized or illogical or when they stare into space, may be more likely to have Alzheimer's disease than people who do not have these lapses1, according to a study published in the January 19, 2010, print issue of Neurology®, the medical journal of the American Academy of Neurology. These mental lapses, also called cognitive认知的,认识的 fluctuations起伏,变动, are common in a type of dementia痴呆 called dementia with Lewy bodies路易氏体失忆症, but researchers previously4 did not know how frequently they occurred in people with Alzheimer's disease and, equally important, what effect fluctuations3 might have on their thinking abilities or assessment5 scores.

The study involved 511 people with an average age of 78. Researchers interviewed the participant and a family member, evaluated the participants for dementia and tested their memory and thinking skills.

People with three or four of the following symptoms met the criteria6标准,条件 for having mental lapses:
Feeling drowsy7昏昏欲睡的,沉寂的 or lethargic8昏睡的,冷漠的 all the time or several times per day despite getting enough sleep the night before
Sleeping two or more hours before 7 p.m.
Having times when the person's flow of ideas seems disorganized, unclear, or not logical
Staring into space for long periods

A total of 12 percent of the people with dementia in the study had mental lapses. Of 216 people with very mild or mild dementia, 25 had mental lapses. Of the 295 people with no dementia, only two had mental lapses.

Those with mental lapses were 4.6 times more likely to have dementia than those without mental lapses. People with mental lapses also tended to have more severe Alzheimer's symptoms and perform worse on tests of memory and thinking skills than people who did not have lapses.

"When older people are evaluated for problems with their thinking and memory, doctors should consider also assessing them for these mental lapses," said senior study author James E. Galvin, MD, MPH, of Washington University School of Medicine in St. Louis, who is a member of the American Academy of Neurology.



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1 lapses 43ecf1ab71734d38301e2287a6e458dc     
n.失误,过失( lapse的名词复数 );小毛病;行为失检;偏离正道v.退步( lapse的第三人称单数 );陷入;倒退;丧失
参考例句:
  • He sometimes lapses from good behavior. 他有时行为失检。 来自辞典例句
  • He could forgive attacks of nerves, panic, bad unexplainable actions, all sorts of lapses. 他可以宽恕突然发作的歇斯底里,惊慌失措,恶劣的莫名其妙的动作,各种各样的失误。 来自辞典例句
2 cognitive Uqwz0     
adj.认知的,认识的,有感知的
参考例句:
  • As children grow older,their cognitive processes become sharper.孩子们越长越大,他们的认知过程变得更为敏锐。
  • The cognitive psychologist is like the tinker who wants to know how a clock works.认知心理学者倒很像一个需要通晓钟表如何运转的钟表修理匠。
3 fluctuations 5ffd9bfff797526ec241b97cfb872d61     
波动,涨落,起伏( fluctuation的名词复数 )
参考例句:
  • He showed the price fluctuations in a statistical table. 他用统计表显示价格的波动。
  • There were so many unpredictable fluctuations on the Stock Exchange. 股票市场瞬息万变。
4 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
5 assessment vO7yu     
n.评价;评估;对财产的估价,被估定的金额
参考例句:
  • This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
  • What is your assessment of the situation?你对时局的看法如何?
6 criteria vafyC     
n.标准
参考例句:
  • The main criterion is value for money.主要的标准是钱要用得划算。
  • There are strict criteria for inclusion in the competition.参赛的标准很严格。
7 drowsy DkYz3     
adj.昏昏欲睡的,令人发困的
参考例句:
  • Exhaust fumes made him drowsy and brought on a headache.废气把他熏得昏昏沉沉,还引起了头疼。
  • I feel drowsy after lunch every day.每天午饭后我就想睡觉。
8 lethargic 6k9yM     
adj.昏睡的,懒洋洋的
参考例句:
  • He felt too miserable and lethargic to get dressed.他心情低落无精打采,完全没有心思穿衣整装。
  • The hot weather made me feel lethargic.炎热的天气使我昏昏欲睡。
TAG标签: mental dementia lapse
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