BEIJING, June 3, beijing, according tomedia reports, for a long time, due to the complexity of human thinking, memory formation and recovery process has been confusing scientists. But scientists believe they have now figured out how humans learn and store these moments in their “memory banks.”
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According to a team of researchers at the University of Birmingham, this is related to a brain wave called a wave. This brain wave beats three times per second and is generated by the hippocampus in the brain, which is associated with the regulation of motivation, mood and memory. Scientists have found a direct link between the oscillation of this low-frequency brain wave and the recall of memory.
In the new study, conducted by the University of Birmingham, the subjects included epilepsy patients with electrodes implanted in the brain for therapeutic purposes. The scientists involved them in some experiments and then collected data through electrodes. They showed the subjects a series of pictures and words. There was no association between the images and the words, but the scientists told the subjects that a word was related to a particular image, asking them to remember the associations and then asking them to try to recall them.
Perhaps because of the complexity of human thinking, little is known about the process of memory formation and recovery. But scientists believe they have now figured out how humans learn from the brain waves produced by the hippocampus and store them in their own “memory banks.”
The researchers found that the initial learning phase produced ripples only when the subjects gave the correct answers in subsequent tests. This, they say, suggests that this is the only way someone will produce this brain wave when they are learning efficiently. And since ripples are produced only when they are successfully learned, this brain wave is essential for memory formation.
The researchers then asked subjects in the brain who did not have electrodes implanted in a similar task, and asked them to remember the association between unrelated words and pictures. The researchers then placed a button in front of them and played the picture randomly on the screen in front of them. When the subject remembered the words associated with the picture, the button was pressed.
After analyzing test data from hundreds of subjects, the researchers found that when giving the right answer, people pressed the button for a certain amount of time: at three points in a second, most people would step on the right information when they recalled it. This aggregation pattern was not observed when the wrong answer was given.
Dr Maria Wimber said: “You can see a pattern of oscillation sway from it. After giving a hint, there may be some regular interval between the points in time at which the brain evokes memories, and it is unlikely that they will be evoked during those intervals. “
Scientists believe that the steady rhythmobserved in the experiment came from the ripples. They reverberate around the hippocampus, extracting the correct memories that had previously been implanted in them. In the formation of these correct memories, the ripples also played a role in helping people learn the association between words and pictures.
For example, a previous study unrelated to the topic found that when the movie’s sound and screen oscillate harmoniously several times per second, the viewer remembers more.
The researchers hope that knowledge that “the brain uses regular pulses to form and retrieve memories” will help people with cognitive disorders, such as Alzheimer’s, that cause memory loss. It may be possible to improve the ability to form memories through the synchronization of ripples.
The researchers also hope to help Alzheimer’s patients remember the names of new caregivers in this way. The study has had some initial success in the lab, but it is not clear how effective it will be in the actual situation.
The study was presented at a meeting of the Society of Cognitive Neuroscience this month.