首页
登录
职称英语
Scientists researching hypnosis have uncovered evidence that counte
Scientists researching hypnosis have uncovered evidence that counte
游客
2024-01-11
36
管理
问题
Scientists researching hypnosis have uncovered evidence that counters
some of the skepticism about the technique. One skeptical hypothesis is that
hypnosis may be the product of "vivid imagination", a now discredited charge
Line stemming from the observation that many people who are hypnotizable can be
(5) led to experience compellingly realistic auditory and visual hallucinations.
Noting that an auditory hallucination and the act of imagining a sound are both
self-generated and that, like real hearing, a hallucination is experienced as the
product of an external source, Henry Szechtman used PET (positron emission
tomography) to image the brain activity of hypnotized subjects invited to
(10) imagine a scenario and then experiencing a hallucination. By monitoring
regional blood flow in areas activated during both hearing and auditory
hallucination but not during simple imagining, the investigators sought to
determine where in the brain a hallucinated sound is mistakenly "tagged" as
authentic and originating in the outside world.
(15) Szechtman imaged the brain activity of eight very hypnotizable subjects
who had been prescreened for their ability to hallucinate under hypnosis. During
the session, the subjects were under hypnosis and lay in the PET scanner with
their eyes covered, their brain activity being monitored under four conditions:
at rest; while hearing an audiotape of a voice, while imagining hearing the voice
(20) again; and during the auditory hallucination they experienced after being
informed that the tape was playing once more, although it was not. The tests
suggested that a region of the brain called the right anterior cingulate cortex
was just as active while the volunteers were hallucinating as it was while they
were actually hearing the stimulus. In contrast, that brain area remained
(25) dormant while the subjects were imagining that they heard the stimulus.
The second major objection raised by critics argues that hypnosis’ ability to
blunt pain results from either simple relaxation or a placebo response.
McGlashan established that while hypnosis was only as effective in reducing pain
as a sugar pill for poorly hypnotizable people, highly hypnotizable subjects
(30) benefited three times more from hypnosis than from the placebo. In response to
these successes, Rainville devised experiments to determine which brain
structures are involved in pain relief during hypnosis, attempting to locate the
brain structures associated with the suffering component of pain, as distinct
from its sensory aspects. Using PET, he and other scientists found that
(35) hypnosis reduced the activity of the anterior cingulate cortex-an area known to
be involved in pain-but did not affect the activity of the somatosensory cortex,
where the sensations of pain are processed.
Despite the value of these findings, the mechanisms underlying hypnotic
pain relief are still poorly understood. The model favored by most researchers is
(40) that the analgesic effect of hypnosis occurs in higher brain centers than those
involved in registering the painful sensation, accounting for the fact that most
autonomic responses that routinely accompany pain-such as increased heart
rate-are relatively unaffected by hypnotic suggestions of analgesia. [br] The author’s attitude toward some researchers’ thesis that hypnotic pain relief is distinct from a placebo effect can best be described as one of
选项
A、complete agreement
B、reluctant support
C、subtle condescension
D、irreverent dismissal
E、strong opposition
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3353608.html
相关试题推荐
Untilrecently,scientistsdidnotknowofaclosevertebrateanaloguetoth
Untilrecently,scientistsdidnotknowofaclosevertebrateanaloguetoth
Untilrecently,scientistsdidnotknowofaclosevertebrateanaloguetoth
Untilrecently,scientistsdidnotknowofaclosevertebrateanaloguetoth
Somesoilscientistshaveassertedthatdecayingmatterontheforestfloorisa
Scientistsattemptingtoreplicatecertaincontroversialresultsreportedbyag
Scientistsnowbelievethatartificial-hipimplants,previouslythoughttobesa
Senator:Jonesishighlyqualifiedforappointmentasajudge,asevidencedbyJ
Becausedinosaurswerereptiles,scientistsonceassumedthat,likeallreptiles
ThefirstpeopletoinhabitNorthAmericacamefromAsia.Scientistshadhypothe
随机试题
OpinionpollsrepeatedlytellusthattheonlythingAmericansworryaboutm
Choosethecorrectletter,A,BorC.TheSnowCentre[br]Annierecommendsthat
Pleasebecarefulwhenyouaredrinkingcoffee______(以免弄脏了新地毯).incaseyou(shou
( )为债务融资工具在银行间债券市场的交易提供服务。A.中央国债登记结算有限公
男性,25岁。因车祸撞伤腹部,病人诉腹痛难忍,伴恶心、呕吐,X线腹透见膈下游离气
随意挑选一组人去听一位演讲者对一大群注意力高度集中的听众所做的行政伦理学讲演。再
药物按明煅法煅烧至红透,立即投入规定的液体辅料中骤然冷却的方法A.明煅法 B.
我国《政府采购法》确立的政府采购的基本原则包括()。A.公开透明原则 B
根据账簿记录编制会计报表不是会计软件的必备功能。
水利工程项目施工管理机制中,必须是承包人本单位的人员有()等。A.财务负责人员
最新回复
(
0
)