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Scientists from the Universities of Birmingham and York have identified a type of brain activity associated with remembering and processing information during sleep.
The researchers looked at sleep spindles - waves of brain activity that can be seen using an electroencephalogram (EEG). Scientists were interested in how they affect the work of memory in sleep.
To do this, experts conducted an experiment: the participants were asked to remember the connection between words and images of objects before going to bed. When people were dozing, half of these words were repeated to them to start the process of reactivating memory. Then, when the respondents woke up, they were told a word and asked to remember the correct associations. It turned out that the best remembered pictures and scenes to the words that the scientists repeated to the participants when they slept. The EEG results showed that it was at this moment that sleep spindles appeared.
According to Bernhard Staresina of the University of Birmingham's School of Psychology, spindle stimulation with electrodes may be one way to improve memory. Scientists suggest that their discovery will help people who have a hard time learning.
"New things are remembered in a state of vigor, but in a dream, the brain processes information, makes it more accessible so that a person can remember it at the right time. This is important both for learning and for understanding what we can do to prolong health brain, "- said another study author, Scott Cairney from the Department of Psychology at the University of York.
The researchers looked at sleep spindles - waves of brain activity that can be seen using an electroencephalogram (EEG). Scientists were interested in how they affect the work of memory in sleep.
To do this, experts conducted an experiment: the participants were asked to remember the connection between words and images of objects before going to bed. When people were dozing, half of these words were repeated to them to start the process of reactivating memory. Then, when the respondents woke up, they were told a word and asked to remember the correct associations. It turned out that the best remembered pictures and scenes to the words that the scientists repeated to the participants when they slept. The EEG results showed that it was at this moment that sleep spindles appeared.
According to Bernhard Staresina of the University of Birmingham's School of Psychology, spindle stimulation with electrodes may be one way to improve memory. Scientists suggest that their discovery will help people who have a hard time learning.
"New things are remembered in a state of vigor, but in a dream, the brain processes information, makes it more accessible so that a person can remember it at the right time. This is important both for learning and for understanding what we can do to prolong health brain, "- said another study author, Scott Cairney from the Department of Psychology at the University of York.
