scholarly journals Neural Population Dynamics Underlying Motor Learning Transfer

Neuron ◽  
2018 ◽  
Vol 97 (5) ◽  
pp. 1177-1186.e3 ◽  
Author(s):  
Saurabh Vyas ◽  
Nir Even-Chen ◽  
Sergey D. Stavisky ◽  
Stephen I. Ryu ◽  
Paul Nuyujukian ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Motor Learning ◽  
Learning Transfer ◽  
Neural Population

scholarly journals Learning stable, regularised latent models of neural population dynamics

2012 ◽  
Vol 23 (1-2) ◽  
pp. 24-47 ◽  
Author(s):  
Lars Buesing ◽  
Jakob H. Macke ◽  
Maneesh Sahani
Keyword(s):  
Population Dynamics ◽  
Neural Population ◽  
Latent Models

scholarly journals Low Dimensionality, High Robustness in Neural Population Dynamics

Neuron ◽  
2019 ◽  
Vol 103 (2) ◽  
pp. 177-179 ◽  
Author(s):  
Román Rossi-Pool ◽  
Ranulfo Romo
Keyword(s):  
Population Dynamics ◽  
Neural Population ◽  
Low Dimensionality

scholarly journals Thirst regulates motivated behavior through modulation of brainwide neural population dynamics

Science ◽  
2019 ◽  
Vol 364 (6437) ◽  
Author(s):  
William E. Allen ◽  
Michael Z. Chen ◽  
Nandini Pichamoorthy ◽  
Rebecca H. Tien ◽  
Marius Pachitariu ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Neural Population ◽  
Motivated Behavior

scholarly journals Skill-specific changes in cortical preparatory activity during motor learning

2020 ◽  
Author(s):  
Xulu Sun ◽  
Daniel J. O’Shea ◽  
Matthew D. Golub ◽  
Eric M. Trautmann ◽  
Saurabh Vyas ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Motor Skills ◽  
Rhesus Monkeys ◽  
Activity Patterns ◽  
Arm Movement ◽  
Neural Population ◽  
Motor Memory ◽  
Short Term ◽  
Preparatory Activity ◽  
Open Question

AbstractAnimals have a remarkable capacity to learn new motor skills, but it remains an open question as to how learning changes neural population dynamics underlying movement1. Specifically, we asked whether changes in neural population dynamics relate purely to newly learned movements or if additional patterns are generated that facilitate learning without matching motor output. We trained rhesus monkeys to learn a curl force field2 task that elicited new arm-movement kinetics for some but not all reach directions3,4. We found that along certain neural dimensions, preparatory activity in motor cortex reassociated existing activity patterns with new movements. These systematic changes were observed only for learning-altered reaches. Surprisingly, we also found prominent shifts of preparatory activity along a nearly orthogonal neural dimension. These changes in preparatory activity were observed uniformly for all reaches including those unaltered by learning. This uniform shift during learning implies formation of new neural activity patterns, which was not observed in other short-term learning contexts5–8. During a washout period when the curl field was removed, movement kinetics gradually reverted, but the learning-induced uniform shift of preparatory activity persisted and a second, orthogonal uniform shift occurred. This persistent shift may retain a motor memory of the learned field9–11, consistent with faster relearning of the same curl field observed behaviorally and neurally. When multiple different curl fields were learned sequentially, we found distinct uniform shifts, each reflecting the identity of the field applied and potentially separating the associated motor memories12,13. The neural geometry of these shifts in preparatory activity could serve to organize skill-specific changes in movement production, facilitating the acquisition and retention of a broad motor repertoire.

Sign in / Sign up

Export Citation Format

Share Document