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Friday, January 27, 2023

The brain consolidates motor memory when we dream.

According to one study, when we dream, a synchronization mechanism is activated in the brain to strengthen motor memory, among other things. Photo: Freepik

A team of neuroscientists from the University of California at San Francisco is the protagonist of a groundbreaking work in which they demonstrate that, When we dream, a synchronization mechanism is activated in the brain to consolidate motor memory, among other things.

in dissemination studies natureKarunesh Ganguly, professor of neurology at the UCSF Weill Institute for Neurosciences and coordinator of this work, explains that “motor memory doesn’t perform perfectly. It’s about predictable misses and hits. As long as the errors are stable from day to day The brain says: ‘Let’s block this memory’.

motor memory is related to motor skills, such as walking, The body remembers movements learned from a particular activity and can perform them unconsciously, in the sense that you don’t have to think about each specific movement as it registers and automates them.

The authors of this paper note that it has long been hypothesized that memory stabilization through system consolidation follows a two-stage process.

Although in his opinion both classical and recent studies support a hippocampal-dependent and independent phase It is unclear how cortical representations develop with hippocampal–cortical interactions,

memoria motor

Furthermore, it is unknown on what time scale such coordination occurs and what processes may inform transitions between phases during the consolidation of the system.

They point out that they have shown that changes in the coupling of prefrontal cortex, primary motor cortex, and global slow oscillations of sleep are closely related to changes in performance across days and can predict declines in disturbances. Learning in the primary motor cortex.

Surprisingly, these neuroscientists emphasize in their work- Coupled with yield stabilization and multiple-consolidation, that coupling has led to a sharp increase.

This robust increase in coupling is also a strong temporal predictor of disconnection of the primary motor cortex and the increase in hippocampal fast wave coupling; This phase was followed by several consolidations.

Paradoxically—they conclude—, error induction led to multiple exploration and reactivation of hippocampal-cortical coupling,” which further consolidates Hippocampus-cortical dialogue may support multiple scanning,

‘Sleep is important because our conscious brains focus on failures,’ says Professor Ganguly, who used a technique called optogenetics to reduce specific types of brain activity in sleeping mice.

This pilot study that was circulated in 2019 through the pages of the cell This allowed researchers to determine whether two different types of slow brain waves seen during sleep, called slow oscillations and delta waves, respectively, strengthened the activation of specific brain cells involved in a newly learned skill. or weakens.

The Brain Consolidates Motor Memory When We Dream.
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