The size of our pupil decides which memory to store while sleeping

While our body regenerates every night during sleep, the brain continues to work: inspect the events of the day and select them. And our pupil tells much more about this process than we have ever thought, according to a from a new research.

Old and new memories – that’s why they don’t wash together

Researchers have long been employed by memory and especially that How to process new memories without being blurred with the old. Numerous theories have come to light so far on how the process takes place, but the results of a new research will once again put the subject in a different light.

Cornell University Researchers’ Brain Activity Electrodes and Tiny eye-movement camera cameras have been attached to mice’s heads, They were then followed by learning new tasks during the day – including how they navigate in a maze – as they studied their night’s sleep.

To study the brain function during sleep the research team He exploited one of the special features of the mice: their eyes remain half open in certain sleep stages. The footage has shown that the temporal structure of the sleeping mice is more varied and more similar to the sleep stages in humans than they previously thought. As a result, there were countless conclusions about sleep and pupil size relationships.

Pupil’s job decides what we remember

Mice’s sleep was interrupted at different moments and later tested how well they remembered the tasks they learned. Researchers have experienced that When a mouse enters one of the subsection of non-Im sleep, its pupil is narrowed. Here, the recent tasks, the new memories, are activated and solidified.

Contrast Older memories are repeated and integrated when the pupil expands. During the deep section of sleep, the researchers observed that the pupils would contract and then return to their original size, and the process is repeated over and over again. Each cycle lasted for a short time, about a minute, quickly in succession.

These results help answer the question that Why do not delete old memories when consolidating new memories; For example, why learn to play piano without forgetting how to ride a bike. Of course, there are still many similar research on people involved, but the results already point to the importance of sleeping and pupil movement in the storage and categorization of memories.

« The result suggests that the brain is able The researchers emphasize.

Old and new memories alternately accompany our sleep

Of course, other previous research has identified the relationship between pupils and sleep and sleep and memory formation, but this study complements this connection with a new aspect. So far There was a lot of debate about how new memories fit into the old while sleeping – Especially how separate and intentional these processes are.

The research team also discovered that if the SWR waves are blocked – which is known to affect memory storage – will limit the ability of mice in the contracted pupil storage of mice to remember anything new.

Therefore, it is assumed that the brain has an intermediate time scale that separates new learning from old knowledge. Research results are far -reaching: a device that monitors a brain function can help, for example, memory problems Treatment as well as in memory development.

Good sleep also supports memory

Sleep acts as an influencing factors in many areas of our health. It also plays a key role in the health and memory processing of the brain, emphasizes the Somnocenter Sleep Disorder Center. During sleep our body regenerates and our brains store it in long -term memory part of the information.

If our body does not have sufficient amounts and quality of sleep, it has a negative impact on our cognitive abilities, attention and reaction time. Thus, the freshness of the brain depends largely on how much and what quality we provide to our body. If there is a permanent lack of this, be sure to consult a somnologist who can help you explore the background, whether organic or mental, and then, after examination, will make a treatment plan to solve the problem.

In summary

• The size of our pupil can affect our memory while sleeping.
• Research shows that the size of the sleepers’ pupil is related to the activity of the brain and storing memories.
• Studying the sleep of mice, they found that the pupils would contract when the new memories were solidified and then expand when integrating older memories.
• The results of the research can help you understand why old memories are not deleted when new ones are created, and how the brain is able to perform various cognitive processes while sleeping.
• The results can be key to the development and treatment of brain function and memory.

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