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zoom RSS MRI脳スキャンはウソ発見器として使用可能だろうか?/fMRI

<<   作成日時 : 2010/06/11 20:30   >>

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 法廷や保険業者、雇用者により悪用されるような脳スキャンを止めさせる対策が必要であると、専門家は警告している。
 脳のある部分が発火することで人が嘘を言っているかどうかがわかるとする研究結果がいくつかでている。従業員を雇用する時に脳スキャンを使用する米国の会社があるが、米国の法廷では法的問題でこの検査を使用することは拒否している。プライバシーと技術の信頼性の問題があるという。グラスゴーの研究所での会議でこの問題について専門家の議論が行われている。
 MRIスキャンが米国で90例以上の死刑のケースでうそ発見器や精神疾患検出のために使用されている。多くの場合は採用されていないが、スキャン結果が証拠として時々認められている。
 誤った使用法をどう防ぐかとプライバシーをどう守るかを検討する必要がある。
 人の心を読むことは確実ではないが、有用なものもあることはある。
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Page last updated at 23:08 GMT, Sunday, 6 June 2010 00:08 UK
Brain scans being misused as lie detectors, experts say
By Caroline Parkinson
Health reporter, BBC News
http://news.bbc.co.uk/2/hi/health/8722182.stm

画像MRI scans of the brain
MRI scans are an established way of diagnosing brain conditions

Measures are needed to stop brain scans being misused by courts, insurers and employers, experts have warned.

Some research suggests the technique can show whether a person is lying if certain areas of the brain "light-up".

At least one US company is offering scans to employers recruiting staff but American courts have already rejected attempts to use them in legal cases.

The University of Edinburgh's Burkhard Schafer said there were issues over privacy and reliability of technology.

The subject is being discussed by experts from around the world at a conference at the Institute of Advanced Studies in Glasgow.

'The next frontier'

Attempts have been made to use magnetic resonance imaging scans as lie detectors or to demonstrate mental health problems in more than 90 capital punishment cases in the US, as well as in other proceedings in Europe and Asia.


As soon as public awareness increases there will be interest from everyone from daytime entertainment programmes to employers and the legal system
Burkhard Schafer, University of Edinburgh

While they have been rejected in many cases, scan results have sometimes been accepted as evidence.

Mr Schafer, co-director of the SCRIPT Centre for Research in Intellectual Property and Technology at the University of Edinburgh's school of law, said the UK had to consider how to prevent MRI scans being misused - and how to protect people's privacy.

"After data mining and online profiling, brain imaging could well become the next frontier in the privacy wars.

"The promise to read a person's mind is beguiling, and some applications will be greatly beneficial.

"But a combination of exaggerated claims by commercial providers, inadequate legal regulation and the persuasive power of images bring very real dangers for us as citizens."

He added: "As soon as public awareness increases there will be interest from everyone from daytime entertainment programmes to employers and the legal system.

"It would be sensible to be prepared."

'Powerful and compelling'

Mr Schafer added there was also a chance employers could seek to use scans to test the honesty of an individual's CV - or by insurance companies.


We do need to have an informed debate
Professor Geraint Rees, UCL

"There should probably be a moratorium for insurance companies, as has happened over the use of genetic test information."

But he warned MRI scans should not be used in this way: "The science isn't there."

Joanna Wardlaw, professor of applied neuroimaging at the University of Edinburgh, said brain scans could show differences between groups who thought differently in a research setting.

But she added: "It's very, very difficult to apply the results of an individual's scan in situations such as where there is a threat of legal action.

"Images are powerful and compelling, and people are likely to accept them. But there needs to be much more understanding of what the limitations are."

Professor Geraint Rees, director of the University College London's Institute of Cognitive Neuroscience, said: "I'm concerned about the potential use of scans that are starting to emerge now, but whether we need to go down the road of legal regulation, I'm not so sure about.

"But we do need to have an informed debate."

-------------------------------------------------------
Science 11 June 2010:
Vol. 328. no. 5984, pp. 1336 - 1337
DOI: 10.1126/science.328.5984.1336-a

Science and The Law:
fMRI Lie Detection Fails a Legal Test
Greg Miller

Lie-detection technology that uses functional magnetic resonance imaging (fMRI) scans of brain activity is not yet ready for use in the courtroom, a federal magistrate judge in Tennessee decided last week. Defense attorneys for Lorne Semrau, a psychologist accused of defrauding Medicare and other health-benefit providers, had sought to introduce fMRI brain scans to show that their client had no intention of cheating the government and other insurers. But after a pretrial hearing in mid-May that featured testimony from scientists on both sides of the issue, Magistrate Judge Tu Pham concluded that the scans don't measure up to the federal courts' standards for scientific evidence. Pham's 39-page report is the most formal legal opinion yet on this controversial technology, and although other courts don't have to follow suit, legal experts say it is likely to be influential.

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人間を、裁く人間そして、嘘をつくことが

まだ見えることはないでしょう。これからの未来に

おいてはありえますが・・・
ヒサノリ
2010/06/18 11:30

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