Figuring out a lie has never been easier: forget body language or how convincing the message is, just listen to how detailed and rich the story is. This is the core of a new approach to lie detection, say the researchers.
Since 9/11, security staff have been trained to recognise no less than 92 signals that someone might be lying. The senior author: ‘This is nonsensical, because it’s an impossible task. People can't assess all those signals in a short time, let alone integrate multiple signals into an accurate and truthful judgment.’
We are used to believing people who look innocent. After all, it pays to believe by default that people are good. And liars have happily exploited this fact - just remember Lance Armstrong, he had many people’s sympathy for a long time’, says the author.
The researchers have therefore been recommending for some time that it is best not to rely on someone's body language, but on what they actually say. Existing verbal lie tests try to combine numerous different signals, including consistency, directness and plausibility. However, these signals do not always point in the same direction.
The Lab has now come up with a new approach to lie detection in which people base their judgments on just one signal. A simple rule of thumb which focuses entirely on the level of detail in the story told by the ‘liar’. It certainly takes a bit of getting used to.
‘It feels very counterintuitive to just listen to what people are saying and not to pay attention to all kinds of other signals, such as how convincingly or emotionally someone conveys their story,’ explains the author. ‘But people who tell the truth can give a rich description because they actually experienced the event, whereas although liars can come up with details, this increases their risk of being caught.’
To illustrate the new approach to lie detection, the author created a science comic together with a cartoonist.
In order to know with 100% certainty whether someone was lying or not, the researchers conducted a series of lab experiments. A group of students was divided into guilty and innocent. Those assigned to the guilty group were instructed to steal an exam from a locker. Those in the innocent group were tasked with spending half an hour on the campus: go to the library, drink coffee and call a friend. Afterwards, both the innocent and guilty parties were to say that they had spent half an hour on campus. In nine studies, 1,445 people were asked to rate the accuracy of honest and deceptive handwritten statements, video transcripts, video interviews or live interviews.
Under the standard condition, participants were free to use all possible signals – from looking people in the eye to looking for nervous behaviour or a particularly emotional story – to assess whether someone was lying. In this situation, they found it difficult to distinguish lies from truths and scarcely performed above the level of probability. When instructed to rely only on the amount of detail (place, person, time, location) in the story, they were consistently able to discern lies from truths.
https://www.nature.com/articles/s41562-023-01556-2
Lie detection!
- 664 views
- Added
Latest News
Metabolic rewiring promotes…
By newseditor
Posted 18 Apr
A drug to prevent flu-induc…
By newseditor
Posted 18 Apr
New origin of deep brain waves
By newseditor
Posted 17 Apr
Starving cells hijack prote…
By newseditor
Posted 17 Apr
Miniature battery-free epid…
By newseditor
Posted 17 Apr
Other Top Stories
Technology may help stroke victims to recover faster!
Read more
Cryo-EM structure of malaria invasion complex
Read more
Brain anatomy to identify an individual like finger printing!
Read more
Turbulence is key for large scale platelet generation form iPSC
Read more
Neurons can transmit multiple signals simultaneously
Read more
Protocols
MemPrep, a new technology f…
By newseditor
Posted 08 Apr
A tangible method to assess…
By newseditor
Posted 08 Apr
Stem cell-derived vessels-o…
By newseditor
Posted 06 Apr
Single-cell biclustering fo…
By newseditor
Posted 01 Apr
Modular dual-color BiAD sen…
By newseditor
Posted 31 Mar
Publications
How does the microbiota con…
By newseditor
Posted 18 Apr
The integrated stress respo…
By newseditor
Posted 18 Apr
The immunobiology of herpes…
By newseditor
Posted 17 Apr
Circulating microbiome DNA…
By newseditor
Posted 17 Apr
Spindle oscillations in com…
By newseditor
Posted 17 Apr
Presentations
Hydrogels in Drug Delivery
By newseditor
Posted 12 Apr
Lipids
By newseditor
Posted 31 Dec
Cell biology of carbohydrat…
By newseditor
Posted 29 Nov
RNA interference (RNAi)
By newseditor
Posted 23 Oct
RNA structure and functions
By newseditor
Posted 19 Oct
Posters
A chemical biology/modular…
By newseditor
Posted 22 Aug
Single-molecule covalent ma…
By newseditor
Posted 04 Jul
ASCO-2020-HEALTH SERVICES R…
By newseditor
Posted 23 Mar
ASCO-2020-HEAD AND NECK CANCER
By newseditor
Posted 23 Mar
ASCO-2020-GENITOURINARY CAN…
By newseditor
Posted 23 Mar