Home Health Brain imaging-study – Beaten with simple

Brain imaging-study – Beaten with simple

43
0
SHARE
Brain imaging-
Brain imaging-study - Beaten with simple Brain imaging- Concealing information from brain imaging can be beaten with simple countermeasures: study
Brain imaging-study – Beaten with simple
Brain imaging-
Concealing information from brain imaging can be beaten with simple countermeasures: study
Brain imaging-study - Beaten with simple countermeasures: study human brain images brain imaging techniques diagnostic imaging brain brain imaging and behavior brain imaging techniques brain imaging techniques

Washington: A study claims that there are people who are good in hiding information and can easily fool the brain imaging technique called fMRI. They can easily get away by using mental countermeasures which results in the test.

brain imaging


‘Human Brain Mapping’
The work was led by a group of researchers in Plymouth, in collaboration with the University of Padova, Italy.

brain imaging techniques


This is research on the effects of mental countermeasures on brain activity in functional magnetic resonance imaging (fMRI) and it showed that when people used countermeasures, the test proved 20 percent less accurate.

How do concealed information tests work?
Concealed information tests work because a person who is hiding something will ‘give away’ what they are saying For example, if a thief has stolen a diamond ring, the ring will be more striking to the thief than similar items.

diagnostic imaging brain 3


However, these tests are based on physiological signs and are easy to beat as perpetrators may be artificially altered. To overcome this problem, researchers moved to methods that look directly at brain activation using fMRI.

Osborne’s brain imaging pat

An fMRI machine tracks blood flow to activated brain areas. The assumption in concealed information detection is that the brain will show signs of recognition when present with the concealed items while exerting additional effort to conceal signs of such recognition, and so more work in the brain regions that get more blood Such areas are light up in scans, and they are primarily involved in directing.

brain imaging techniques

What did the study show?
In the new study, participants were asked to hide the information about a ‘secret’ digit they found inside an envelope.

Researchers taught 20 participants with two mental countermeasures. The first was to associate meaningful memories to the control items, making them more significant. The second was to focus on the superficial aspects of the item that they were trying to conceal, rather than on the experience of familiarity it evokes, in order to make it less significant.

brain images

The results showed that these countermeasures lowered the accuracy of the test by about 20 percent because it was more difficult for fMRI to find any differences in brain activity. Thus, participants were more likely to be able to hide their hidden information item when using mental countermeasures.
MRI brainThe research team concluded that in order to improve the robustness of the test, future work needed to identify a way of detecting mental countermeasures, and rather than just conducting whole-brain analyses, instead of just examining regions of interest.

brain image
One of the lead writers said, “fMRI tests are not currently used by law enforcement in the same way as polygraph tests, but they are considered for scientific and criminal use as a way of detecting when someone is hidden information. This study shows that the item can be hidden in the memory of the memory, rather than the item of memory, or focus on the artistic memories.

MRI scan brain

Adding, he went on to say, “None of our participants was seasoned liars or criminals, they were just everyday people, so before the test can also be considered for forensic use. using mental countermeasures. “

  • human brain images
  • brain imaging techniques
  • diagnostic imaging brain
  • brain imaging and behavior
  • brain imaging techniques
  • brain imaging techniques

LEAVE A REPLY

Please enter your comment!
Please enter your name here