Evoked Potentials in Hysteria and Malingering

Evoked Potentials in Hysteria and Malingering
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歇斯底里和装病的诱发电位

DOI:
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发表时间:
1986
影响因子:
2.4
通讯作者:
L. Dorfman
L. Dorfman
中科院分区:
医学4区
文献类型:
--
作者:
J. Howard;L. Dorfman

文献摘要

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摘要:诱发电位通常有助于确认癔症和诈病中感觉症状的非器质性。回顾性分析发现,此类病例约占转诊至大学医院实验室的 1%。然而,电生理测试的诊断用途在某些临床环境中受到限制:具有某些器质性缺陷的受试者可能会遇到正常反应,而正常受试者有时可能会自愿产生“异常”反应。在装病中(与歇斯底里相反),技术人员在监测患者遵守测试程序方面的作用尤为重要。与其他实验室研究一样,诱发的潜在发现必须在每种临床情况的背景下进行解释,并充分了解测试的敏感性和特异性。
Summary: Evoked potentials are often helpful in confirming the nonorganic nature of sensory symptoms in hysteria and malingering. In a retrospective analysis, such cases were found to comprise approximately 1 % of referrals to a university hospital laboratory. However, the diagnostic usefulness of electrophysiologic tests is limited in some clinical settings: normal responses may be encountered in subjects with certain organic deficits, and “abnormal” responses can sometimes be produced voluntarily by normal subjects. In malingering—as opposed to hysteria—the role of the technologist in monitoring patient compliance with the test procedure is particularly important. Like other laboratory investigations, evoked potential findings must be interpreted within the context of each clinical situation, and with full appreciation of the sensitivities and specificities of the tests.