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
32
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
Itisfrequentlyassumedthatthemechanizationofworkhasarevolutionary
[originaltext]W:HaveToddandLisastartedafamilyyet?They’vebeenmarried
Fromthearcheologist’sperspective,understandingthepastisvitallyimportant
Astudyofthephysicalactivityhabitsof4563adultsfoundthatthosewho
固定端约束通常有()个约束反力。A.一 B.二 C.三 D.四
急性水中毒的临床特点是A.以脑水肿表现最为突出 B.以周围循环衰竭表现最为突出
影响企业支付能力的因素有( )。A.劳动分配率 B.销货劳动生产率 C.损
与颊间隙不直接相通的间隙是A.咽旁间隙 B.眶下间隙 C.咬肌间隙 D.颞
某降压变电所330kV配电装置采用一个半断路器接线,关于该接线方式下列哪些表述是
下列材料中,属于土工复合材料的有()。A、土工布 B、塑料排水带 C、
最新回复
(
0
)