3 weeks ago

Study Uncovers Brain Mechanism Behind Skill Learning Plateaus

Study Uncovers Brain Mechanism Behind Skill Learning Plateaus
Unlocking The Brain's Secret To Learning Plateaus · rediff.com

Your brain has a special scaffold around its cells called the extracellular matrix.

When you start learning something new, this scaffold loosens up so your brain can change and learn fast.

Then, within about a day, it builds itself back up to lock in what you learned.

As you get better at a skill, the scaffold stops loosening as much.

When it stops completely, it's like your brain says 'learning is finished' and protects what you already know.

This is why you improve quickly at first but then hit a learning plateau.

Scientists at the University of Maryland watched this happen during practice.

When they broke down the scaffold with an enzyme, learning became harder.

Even after a skill was mastered, breaking down the scaffold made performance slip.

The research helps explain why plateaus happen and how the brain protects your skills.

Key facts

Key mechanism
Extracellular matrix loosening and rebuilding around brain cells
Learning cycle
Matrix loosens within hours of practice, rebuilds within about a day
Senior author
Melissa Caras, assistant professor of biology, University of Maryland
Journal
Proceedings of the National Academy of Sciences
Experiment used
Enzyme to break down the extracellular matrix
Key finding
Adult brain matrix is far more dynamic than previously believed
Application
Research is early stage, far from direct human application
Theory
Language learning plateaus may reflect brain regions shifting to a stable state

Quotes

Melissa Caras

Assistant professor of biology at the University of Maryland and senior author of the study

“"For the first time, we've been able to see that the remodelling process changes as you gain experience. It happens early in learning, declines and then gradually stops,"”
rediff.com

Sources

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