The Sleeping Brain Relives the Previous Day
During sleep neurons in the Hippocampus spontaneously fire. The brain relives what has happened. The neurons which fired during the say at a certain location get reactivated during the night. The neuron of the start of the tack triggers the next neurons in the middle of the pathway and so on. So the brain relives the track it ran the previous day.
This happens in high-speed. Sometimes 20 times as fast.
This firing of neurons during night not only occurs within the hippocampus, but also extends to the cortex. This improves synpatic plasticity and the consolidation of learning.
Episodic memories can be replayed hundreds of times during sleep. - which may be the main function of sleep.
After motor learning the activity of Primary Motor Cortex, Hippocampus and Cerebellum increase, whereas certain areas in the PFC, Parietal lobe adn Temporal lobe decrease.
So the brain shifts new skills to the areas of more automatic and specialized circuits.
Having the same smell during night than what we smelled when we learned something can increase consolidation as well.
see also
Sleep, Schlaf
The Key Role of Sleep
Tags: neuroscience science
Superlink: 050 🧠Neuroscience
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Erstellt: 05-05-22 19:47