Fear is critical for survival. However, when he realizes that there is no real danger, it is of great importance that this feeling disappears.
Scientists found how the brain did this in a study published in the refereed magazine Science.
Researchers put about 100 mice in a closed area and exposed them to an increasingly expanding shadow, creating the impression that a predatory bird came to them.
With the triggering of instinctive fears, mice first began to run to find a place to take a refuge. However, after 30 to 50 simulation, animals returned to their normal behavior.
The team, during the experiments by monitoring the brain activity of the mice as learning to suppress the fears of which neural mechanisms took action, he said.
The findings show that the visual cortex plays a critical role in the first stage of the learning process. However, when the mouse learns to suppress instinctive fear, this information is stored in the ventrolateral geniculata core (VLGN), which is not examined so far.
In the previous studies, which examined the learning and remembering processes of mice, scientists were largely focused on the visual cortex.
Sara Mederos, who leads the study, is known to be involved in the process of forgetting what is learned, but he says that the memories have not been clear until today. The University College evaluates the findings of Mederos from London as follows:
“We have revealed the mechanism that allows the brain to understand which potential instinctive dangers do not actually danger.”
According to the news reported by Independent Turkish; Researchers say that it is a rare situation to understand a brain function so much.
The team says that the findings can contribute to the treatment of mental health problems such as phobia, anxiety and post -traumatic stress disorder (PTSB) because of the presence of similar nerve paths in the human brain.
