Functional MRI detection of deception after committing a mock sabotage crime.
Functional MRI detection of deception after committing a mock sabotage crime.
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DOI：
10.1111/j.1556-4029.2008.00927.x
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发表时间：
2009-01
影响因子：
1.6
通讯作者：
George MS
中科院分区：
文献类型：
--
作者：
Kozel FA;Johnson KA;Grenesko EL;Laken SJ;Kose S;Lu X;Pollina D;Ryan A;George MS
在简单的实验室范例中，使用血氧水平依赖性 (BOLD) 功能 MRI (fMRI) 来检测欺骗是可行的。使用模拟破坏场景来测试该技术在更接近真实情况的场景中是否也有效。从社区招募健康、未接受药物治疗的成年人，进行筛选，然后随机分为模拟犯罪组或无犯罪组。模拟犯罪组损坏并窃取了包含有罪视频片段的光盘 (CD)，而无犯罪组则没有执行任何任务。模拟犯罪组还从研究人员那里收到了一个信封，而无犯罪组则没有执行这项任务。两组人都被要求报告他们捡到了一个信封，但没有破坏任何视频证据。参与者随后前往成像中心接受扫描，同时被问及有关模拟犯罪的问题。参与者还进行了一个简单的基于实验室的功能磁共振成像欺骗测试（环表测试）。戒指手表测试包括“偷”手表或戒指。参与者被要求报告他们没有偷任何物品。我们在 Ring-Watch 测试中正确识别了 36 名参与者中的 25 名（验证组）的欺骗行为。在这个已做出决定的验证组中，基于计算机的评分正确识别了 9 名模拟犯罪参与者中的 9 名（100% 敏感性）和 15 名无犯罪参与者中的 5 名（33% 特异性）。 BOLD fMRI 目前可用于检测有关过去事件的欺骗行为，灵敏度高，但特异性低。
Using Blood Oxygen Level Dependent (BOLD) functional MRI (fMRI) to detect deception is feasible in simple laboratory paradigms. A mock sabotage scenario was used to test whether this technology would also be effective in a scenario closer to a real-world situation. Healthy, nonmedicated adults were recruited from the community, screened, and randomized to either a Mock-crime group or a No-crime group. The Mock-crime group damaged and stole compact discs (CDs), which contained incriminating video footage, while the No-crime group did not perform a task. The Mock-crime group also picked up an envelope from a researcher, while the No-crime group did not perform this task. Both groups were instructed to report that they picked up an envelope, but did not sabotage any video evidence. Participants later went to the imaging center and were scanned while being asked questions regarding the mock crime. Participants also performed a simple laboratory based fMRI deception testing (Ring-Watch testing). The Ring-Watch testing consisted of “stealing” either a watch or a ring. The participants were instructed to report that they stole neither object. We correctly identified deception during the Ring-Watch testing in 25 of 36 participants (Validated Group). In this Validated Group for whom a determination was made, computer-based scoring correctly identified nine of nine Mock-crime participants (100% sensitivity) and five of 15 No-crime participants (33% specificity). BOLD fMRI presently can be used to detect deception concerning past events with high sensitivity, but low specificity.
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