首页
登录
职称英语
The decrease in responsiveness that follows continuous stimulation (adaptation)
The decrease in responsiveness that follows continuous stimulation (adaptation)
游客
2024-01-10
57
管理
问题
The decrease in responsiveness that follows continuous stimulation (adaptation) is common to all sensory systems, including olfaction. With continued exposure to chronically present ambient odors, individuals’ perception of odor intensity is greatly reduced. Moreover, these perceptual changes can be profound and durable. It is commonly reported that following extended absences from the odorous environment, reexposure may still fail to elicit perception at the original intensity.
Most research on olfactory adaptation examines relatively transient changes in stimulus detection or perceived intensity—rarely exceeding several hours and often less—but because olfactory adaptation can be produced with relatively short exposures, these durations are sufficient for investigating many parameters of the phenomenon. However, exposures to odors in natural environments often occur over far longer periods, and the resulting adaptations may differ qualitatively from short-term olfactory adaptation. For example, studies show that even brief periods of odorant stimulation produce transient reductions in receptors in the olfactory epithelium, a process termed “receptor fatigue.” Prolonged odor stimulation, however, could produce more long-lasting reductions in response, possibly involving structures higher in the central nervous system pathway. [br] The passage asserts which of the following about the exposures involved in the “research on olfactory adaptation”?
选项
A、The exposures are of long enough duration for researchers to investigate many aspects of olfactory adaptation.
B、The exposures have rarely consisted of reexposures following extended absences from the odorous environment.
C、The exposures are intended to reproduce the relatively transient olfactory changes typical of exposures to odors in natural environments.
D、Those exposures of relatively short duration are often insufficient to produce the phenomenon of receptor fatigue in study subjects.
E、Those exposures lasting several hours produce reductions in receptors in the olfactory epithelium that are similar to the reductions caused by prolonged odor stimulation.
答案
A
解析
本题定位到第二段第一句,这些研究者认为短期的刺激足够用来研究嗅觉适应性的很多参数。A选项同义改写原文,正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3350736.html
相关试题推荐
Ifthetemperaturedecreases30percentfrommdegreesto49degrees,thenm-49=
Ifthepriceoftheclothesdecreasesfrom$25to$20,whatisthepercentdecre
CamilleClaudetworkedcontinuouslythroughthe1880’andearly1890’withthes
Ratsinjectedwithmorphineexhibitdecreasedactivityoftheimmunesystem,the
Thetreasurymarketdroppedinresponsetoadecreaseinthevalueofthedollar
11×13×17×19×23Adecreaseof1inwhichofthefactorsabovewouldresultinthe
[img]2012q1/ct_egreqm_egreqtbz1_0017_20121[/img][br]Thepercentdecreaseinav
Anoperation,*,isdefinedasfollows:foranypositivenumbersaandb.[img]2
Ifaisincreasedby10%andbisdecreasedby10%,theresultingnumberswillb
Theinteriordimensionsofarectangulartankareasfollows:length110centime
随机试题
WhenWorldWarIendedonNovember11,1918,peacetalkswentonformonths
Animalperformmanyusefulandentertainingjobs.Dogsareparticularvaluab
A.0 B.π/4 C.是发散的反常(广义)积分 D.是收敛的反常(广义)
以上各种皮肤改变对何种疾病有诊断意义 A.下肢对称性出血性皮疹 B.上眼睑紫
( )是整体变更控制的依据。 ①项目管理计划②批准的变更请求③验收的可交付成
患者,男性,32岁,反复发作口腔溃疡1年、近半年阴茎发生溃疡2次,检查:颊、下唇
受者肾移植1年后出现的排斥反应是()。A.宿主抗移植物反应 B.急性排斥反应
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
经过几年的发展,某快递公司业务规模不断扩大,该公司注重利润积累的同时也关注员工薪
甲县公安局刑警大队XX中队在办理一起盗窃案件时,认为需要对犯罪嫌疑人提请逮捕,根
最新回复
(
0
)