A new test developed by the University of Stirling could help police to determine when criminals or witnesses are lying about their knowledge of a person’s identity.
A team led by Dr Ailsa Millen, Research Fellow in Psychology at Stirling, conducted a study to establish whether liars could hide their reaction when shown a photograph of a familiar face – and found that they could not.
Dr Millen said: “Police officers routinely use photographs of faces to establish key identities in crimes. Some witnesses are honest – but many are hostile and intentionally conceal knowledge of known identities. For example, criminal networks – such as terrorist groups – might deny knowledge to protect one another, or a victim might be too afraid to identify their attacker.
“Our study tracked people’s eye movements when they denied knowledge of someone they knew. Instead of looking for signs of lying directly, we looked for markers of recognition in patterns of eye fixations – such as how individuals looked at a photograph of someone they recognised; compared to someone they did not.
“The main aim was to determine if liars could conceal recognition by following instructions to look at every familiar and unfamiliar face with the same sequence of eye fixations – in short, they could not.”
They used a process known as the concealed information test (CIT), in which participants’ eye movements are tracked while viewing photographs of familiar and unfamiliar faces on a computer screen. In each test, participants denied knowledge of one familiar identity while correctly rejecting genuinely unfamiliar faces, by pressing a button and saying ‘no’.
The team found that most liars could not fully conceal markers of face recognition – either spontaneously, or during explicit strategies to look at every face with the same sequence of eye movements. Moreover, these explicit attempts uncovered more instances of concealment than spontaneous attempts to hide knowledge.
Dr Millen explained: “The harder that individuals tried to conceal knowledge, the more markers of recognition there were. These results suggest that it is difficult to conceal multiple markers of recognition at the same time.”
The CIT is used in field practice in Japan to uncover guilty knowledge about a crime, which only the culprit would know, such as a murder weapon. However, little research has examined the process being used with faces.
The Latest on: Concealed information test
via Google News
The Latest on: Concealed information test
- Last Word: Will Chief Justice John Roberts live up to his words in Senate trial?on January 3, 2020 at 1:58 pm
But these ho-hum words come with a barely concealed punch. The rule of law and its underlying constitutional basis need upholding. Rumor, insinuation and false information — the real fake news — are .
- Liberty Defense Announces Strategic Reviewon December 31, 2019 at 4:09 pm
Liberty's go-to-market strategy is to bring its proprietary detection system, HEXWAVE, to market in the most expedient manner possible, taking full advantage of the disruptive technology that ...
- Electronic Health Records Creating a 'New Era' of Healthcare Fraudon December 26, 2019 at 7:26 am
The whistleblowers also allege that Medhost, the Tennessee firm that developed the software, concealed defects during government-mandated reviews that ... to install software that would track the ...
- Florida bill would require gun owners to get safety training when renewing concealed carry licenseon December 5, 2019 at 5:09 am
A new bill requiring more training to carry concealed weapons in Florida isn't getting support ... "I don't believe in this legislation any more than I think you should have an IQ test to vote, or you ...
- New concealed weapons detection tech to be tested at Camden Yardson September 12, 2019 at 5:53 am
The tech uses low-power, radar imaging and artificial intelligence to detect and identify firearms, knives, explosives and other weapons through a person's clothing, without collecting or storing any ...
- New Stirling University test exposes lying by tracking eye movementson August 6, 2019 at 5:09 pm
The researchers used a process known as the concealed information test (CIT), where eye movements are tracked. In each test, participants denied knowledge of one familiar identity and correctly ...
- 2 Simple Mental Tricks Helped Liars Beat a Brain-Scanning Lie Detector Teston May 3, 2019 at 11:18 am
This is sometimes called a concealed information test. Past lie detector tests investigated physiological consequences of lying, but in the future, we may look for signals of deception in the brain.
- Brain imaging lie detector: Researchers discover two techniques to beat this teston May 2, 2019 at 10:18 am
The assumption is the brain will show signs of recognition when presented with a “concealed” piece of information or item, which the person is trying to hide, during the test. In order to conceal ...
- Man involved in test of Illinois concealed carry law slainon March 26, 2019 at 3:39 am
CHICAGO (AP) - A Chicago man found dead over the weekend inside a vehicle was involved in an early test of Illinois’ concealed carry law. The Chicago Tribune reports autopsy performed Monday by the ...
- Walther PPS M2 as a Concealed Carry Weapon : Test & Reviewon March 1, 2016 at 12:01 pm
Concealed Carry Weapon Test Results: Total Points = 90 out of 100 Possible ... I hope this review of the PPS M2 sub-compact, striker-fired 9mm has helped you gain some information you did not ...
via Bing News