The Role of Variability in Motor Learning.

Abstract:

:Trial-to-trial variability in the execution of movements and motor skills is ubiquitous and widely considered to be the unwanted consequence of a noisy nervous system. However, recent studies have suggested that motor variability may also be a feature of how sensorimotor systems operate and learn. This view, rooted in reinforcement learning theory, equates motor variability with purposeful exploration of motor space that, when coupled with reinforcement, can drive motor learning. Here we review studies that explore the relationship between motor variability and motor learning in both humans and animal models. We discuss neural circuit mechanisms that underlie the generation and regulation of motor variability and consider the implications that this work has for our understanding of motor learning.

journal_name

Annu Rev Neurosci

authors

Dhawale AK,Smith MA,Ölveczky BP

doi

10.1146/annurev-neuro-072116-031548

subject

Has Abstract

pub_date

2017-07-25 00:00:00

pages

479-498

eissn

0147-006X

issn

1545-4126

journal_volume

40

pub_type

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