Near future
No Result
View All Result
24 September 2023
  • Home
  • Tech
  • Health
  • Environment
  • Energy
  • Transports
  • Spazio
  • AI
  • concepts
  • H+
Understand, anticipate, improve the future.
CES2023 / Coronavirus / Russia-Ukraine
Near future
  • Home
  • Tech
  • Health
  • Environment
  • Energy
  • Transports
  • Spazio
  • AI
  • concepts
  • H+

Understand, anticipate, improve the future.

No Result
View All Result
Technology

The new lie detector reads facial muscles you don't even know you're using

A lie detector based on machine learning algorithms coupled with facial expression sensors shows enormous potential.

November 21, 2021
Gianluca RiccioGianluca Riccio
⚪ 3 minutes
Share95Pin24Tweet60SendShare17ShareShare12
Lie detector

READ IN:

We are a mass of liars, and if you say otherwise ... well, obviously you are lying and confirming the thesis. But today the lies have started to have very, very short legs.

It has been found that a machine learning tool trained as a lie detector already works better than a human at recognizing them. And it is content with little: it only reads data from a handful of wearable sensors that pick up small movements in the facial muscles.

Developed by researchers at Tel Aviv University in Israel, the detector "unearthed" lies in 73% of cases. It's not perfect yet, but it's just getting started and it's already much better than any other facial recognition technology out there.

A systematic review published in Brain and Behavior

In the course of the research, wearable electrodes measured facial muscle movements in 48 volunteers who “trained” the machine learning algorithm by lying or telling the truth. Artificial intelligence has gradually learned to recognize models even by imperceptible expressions.

Commonly used "lie detector" machines, such as polygraphs, are generally based on physiological responses: heart rate, blood pressure, respiratory rate. These are all functions that people can learn to control under pressure. It is no coincidence that the performance of this detector is considered inaccurate at best.

The article continues after the related links

ePANTS, the US government bets on networked clothing

Dryad: when the AI ​​copes (successfully) with forest fires

For this the research continues, basically recovering also old empirical knowledge but giving them new technological strength.

Lie detector

An idea as old as lies

The idea that genuine emotions can "leak" onto a liar's face is nothing new. It even goes back to Charles Darwin, who dabbled in psychology experiments. In 1872 the famous scholar noted: "The muscles of the face that are less controllable will by themselves betray a slight and fleeting emotion". He was probably right, but it is one thing to know, another thing is to prove it. Measuring or recognizing these involuntary expressions is very difficult: they appear only for a moment, vanishing in as little as 40-60 milliseconds.

Much of the research to identify facial muscles that we can't control and that betray lies has been conducted using a technique called facial surface electromyography or sEMG. This technique measures the electrical activity of the facial muscles and is capable of recording expressions that are too rapid to be detected by humans.

This new study tested a new type of detector, based on wearable electrodes that are more sensitive and comfortable than sEMG devices. This is combined with a machine learning tool trained to read facial expressions in video footage.

A detector that looks good in your face

As anticipated, the lie detection algorithm successfully revealed up to 73% of the lies. It needs more training, of course, and for several reasons. First of all because these "telltale" muscles tend to change over time. Secondly, because “professional” liars tell complex stories by skillfully mixing real and false elements. Thirdly, because there are also lies that are not told (e.g. omissions). Those elude any detector.

Time will tell if artificial intelligence will be able to replace a polygraph.

Tags: LiesPolygraphsurveysensors

Latest news

  • All the maps of the future: from research tools to doors to tomorrow
  • The bizarre AI that translates the language of chickens
  • Jeddah Tower, construction site of the one kilometer high skyscraper reopens
  • Spider silk from modified silkworms: stronger than Kevlar and 100% natural
  • VIR-1388, HIV vaccine being tested in the USA and South Africa
  • MOWT, innovative floating hydroelectric for slow-flowing waters
  • CRAFT, what stage is the Chinese project to build an artificial Sun?
  • Remote work, halved emissions
  • Shipping pallets in the digital age: how the Internet has revolutionized the logistics landscape
  • BMW 7 Series Protection: the sedan that defies grenades and flamethrowers


GPT Chat Megaeasy!

Concrete guide for those approaching this artificial intelligence tool, also designed for the school world: many examples of applications, usage indications and ready-to-use instructions for training and interrogating Chat GPT.

To submit articles, disclose the results of a research or scientific discoveries write to the editorial staff

Enter the Telegram channel of Futuroprossimo, click here. Or follow us on Instagram, Facebook, Twitter, Mastodon e LinkedIn.

FacebookTwitterInstagramTelegramLinkedInMastodonPinterestTikTok

The daily tomorrow.


Futuroprossimo.it provides news on the future of technology, science and innovation: if there is something that is about to arrive, here it has already arrived. FuturoProssimo is part of the network ForwardTo, studies and skills for future scenarios.

  • Environment
  • Architecture
  • Artificial intelligence
  • Gadgets
  • concepts
  • Design
  • Medicine
  • Spazio
  • Robotica
  • Work
  • Transports
  • Energy
  • Edition Francaise
  • Deutsche Ausgabe
  • Japanese version
  • English Edition
  • Portuguese Edition
  • Read more
  • Spanish edition

Subscribe to our newsletter

  • The Editor
  • Advertising on FP
  • Privacy Policy

© 2023 Near future - Creative Commons License
This work is distributed under license Creative Commons Attribution 4.0 International.

No Result
View All Result
Understand, anticipate, improve the future.
  • Home
  • Tech
  • Health
  • Environment
  • Energy
  • Transports
  • Spazio
  • AI
  • concepts
  • H+