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Related Experiment Video

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Detection of Copy Number Alterations Using Single Cell Sequencing

Detection of Copy Number Alterations Using Single Cell Sequencing

Published on: February 17, 2017

Binding During Sequence Learning Does Not Alter Cortical Representations of Individual Actions.

Patrick Beukema^1,2, Jörn Diedrichsen³, Timothy D Verstynen^4,5

¹Center for Neuroscience, University of Pittsburgh, Pittsburgh, Pennsylvania 15260.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|July 13, 2019

Summary

This summary is machine-generated.

Learning complex motor sequences binds actions together, reducing cognitive load. Brain imaging reveals this binding doesn't change how individual finger movements are represented in the motor cortex.

Keywords:

RSA fMRI motor multivariate

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Area of Science:

Neuroscience
Motor Control
Cognitive Psychology

Background:

Motor learning involves binding serial actions to reduce complexity.
Understanding the neural basis of action binding in motor sequences is crucial for skilled performance.

Purpose of the Study:

To investigate how actions become bound during motor sequence learning.
To examine the effects of this binding on cortical representations of individual actions.

Main Methods:

Neurologically healthy subjects practiced a 32-item finger movement sequence or random actions for 5 weeks.
Behavioral data captured temporal correlations in movement responses.
Functional magnetic resonance imaging (fMRI) assessed changes in cortical representations of finger movements.

Main Results:

Trained subjects showed temporally correlated responses, indicating action binding.
No significant plasticity was observed in the multivariate representations of individual finger movements across the motor hierarchy.
Correlated neural activity was present in motor regions during fine finger control.

Conclusions:

Action binding during motor sequence learning is associated with neural plasticity at a more abstract level of the motor hierarchy.
Representations of individual movements remain stable despite behavioral binding.
This suggests binding mechanisms operate independently of fundamental movement representations.