The near future of the polygraph ??!

[Детективное агентство ИКС-Инфо.]

Scientists have deciphered the "inner voice" of the brain

An amazing method of reconstructing words that exist only in the form of thoughts in the human brain has been demonstrated by American researchers.
The “mind reading” method described in the PLoS Biology journal publication is based on the collection of electrical signals sent by the brain.

Patients listened to audio recordings of various words, devices recorded the signals arising in the brain, and then, using a computer model, scientists reconstructed the words that “sounded in the head” of patients.
It turned out that each word has its own unique set of brain impulses.
This method in the future may help those in a coma or paralyzed patients communicate with others.
Deep into the brain
The discoveries of recent years have shown that scientists are getting closer and closer to a method that will allow them to directly "connect" to human thoughts.
Participants in a study conducted in 2010 by neuroscientists from Missouri and New York were able to control the cursor on a computer screen with the power of thought - through electrodes connected directly to the brain. Saying "to oneself", in thoughts, individual vowels, they moved the cursor in the desired direction.
The method, called "functional magnetic resonance imaging", opened up new perspectives - it was possible to identify specific words or concepts that a person is thinking about by tracking brain blood flow.
In September 2011, a team of researchers at the University of California, Berkeley, led by Jack Gallant, adopted this method.
Think "Aah"
By examining blood flow paths that correspond to specific images arising in the mind, scientists demonstrated how the patterns of these paths make it possible to guess what kind of image or picture the subject is thinking about - in fact, reconstruct the mental “movie” that is “spinning” in a person’s head.
Now another Berkeley scientist, Brian Paisley, along with his colleagues went even further along the path of "reconstruction of mental images."
“We were greatly inspired by Jack’s work,” says Dr. Paisley. “There was only one question - how deep can one get into the human auditory system using the same method of computer simulation?”
Key gyrus
Researchers focused on one part of the brain - the superior temporal gyrus.
This part of the auditory system is one of the most highly organized parts of the brain, responsible for the fact that we extract a certain meaning from the stream of sounds, distinguish words and understand their linguistic meaning.
The experimental team tracked the waveforms of the superior temporal gyrus in 15 surgical patients during operations to treat epilepsy or remove brain tumors.
An audio recording was played on the patients, on which various announcers read out words and sentences.
The most difficult thing was to unravel the chaotic stream of electrical impulses that arose in the temporal lobe while listening to audio recordings.
Using a computer model, a “map” was compiled indicating which parts of the brain and with what intensity send impulses when the ear hears sounds at different frequencies.
Then the patients were given a choice of a series of words, from which one had to choose one and think about it.
It turned out that the same computer model allows you to guess which word the subject chose.
Scientists even managed to recreate some words by converting the recorded brain impulses back into sound waves according to a computer "map".
Double effect
"This work allows you to kill two birds with one stone," says Robert Knight, a professor at Berkeley University, one of the authors of the study.
“And from an applied point of view, people with speech disabilities may be able to use this technology: when they cannot speak, they will present in their thoughts what they want to say,” Knight explains. “The patients gave us valuable information, and it would be nice to thank them that way. "
The authors of the report caution, however, that enormous work remains to be done to improve the technique of "reading mental images," and the device that decrypts the thoughts will not appear soon.
[DLMURL="https://www.bbc.co.uk/russian/science/2012/02/120201_science_internal_voices.shtml"] https://www.bbc.co.uk/russian/science/20 ... ices .shtml [/ DLMURL]

 

[Евгений СБ]

Thank. Interesting.

 

[Игорь Эдуардович]

Thank you! Interesting!

 

[Частный детектив. Владивосток.]

Very interesting! Thank !

 

[Плотников Юрий Михайлович]

Interesting stuff, thanks!

 

[Детективное агентство Тула]

Curious stuff.

 

[Частный детектив. Панда. Краснодар.]

Thanks, interesting stuff.

 

[Детективное агентство ОПЦИОН]

The article is interesting. Thanks, but I didn’t quite understand what the polygraph was about here ?!

 

[Детективное агентство ИКС-Инфо.]

... just do not quite understand what the polygraph has to do with it ?!

When this technology works, the POLYGRAPH will simply nervously smoke aside: P : D

 

[Частный детектив Оренбург]

Thank you, Roman, for an interesting article. I think how it will look in practice, because sometimes we allow ourselves to think all sorts of "nonsense" and if the picture of "thoughts" without control from the "thinking" is displayed on the monitor ....? For example: a patient who is stuffed with drugs thinks to himself, “Yes, you went to .... y”:?::?::?:: Oops: