Electroencephalography (EEG)

Main article: Human brain

Electroencephalogram on the open brain

Electroencephalogram (EEG) on the open brain, search for the area of ​ ​ epileptic seizures.

Electrodes are numbered to specify the location of pathological electrical pulses.

2022: Polytech students create domestic medical device for EEG

St. Petersburg Polytechnic University announced on July 6, 2022 the creation by students of a domestic medical device that will change the way electroencephalography is used to all patients. During this procedure, the doctor applies a special gel to the scalp, and the electrodes are attached to the cap. The development of students is based on gel-free electrodes, and they will be attached to a helmet with movable elements. This will make the accuracy of the study higher, and the procedure itself is more comfortable for both the patient and the health worker. Read more here.

2021: Use of EEG in crime investigations

At the end of January 2021, it became known about the use by the Dubai police of the method of identifying a criminal among suspects in the electrical activity of his brain. Memory print technology was used in the investigation of a murder committed at a warehouse in Dubai, where several people work.

The essence of the new technique is to demonstrate to the suspects images, some of which are related to the crime (photographs from the scene of the murder. murder weapon), and others have nothing to do with the incident.

Dubai police begin to solve crimes of electrical activity of the criminal's brain

During this process, sensors recording an electroencephalogram (EEG) are worn on the suspects. If a suspect sees a crime-related image and the electrical activity of his brain changes in a certain way, experts believe that, most likely, this person is somehow connected with the crime himself.

During the investigation of the murder in the warehouse, the use of memory fingerprint technology was successful. During further interrogation, the suspect, impressed by the unusual technology, confessed to the murder.

Police Lt. Col. Muhamad Issa Al-Hammadi explained that when the subjects were shown crime scene photos, one of the men's brains showed intense electrical activity when he was shown the instrument used in the crime. At the heart of the "memory fingerprint" technology is the registration of the so-called R300 wave, which is caused by cognitive activity, when a person makes a decision, evaluates something or categorizes objects. It took neurophysiologists a year to achieve the correct results in the R300 analysis.

We get accurate analytical data about whether a person was present at the crime scene and whether they are aware of the tool used. By the frequency of the waves, you can even identify the victim, said Muhamad Issa Al-Hammadi.[1]

Notes