scholarly journals Rehabilitation Training Using Complex Motor Learning Rescues Deficits in Eyeblink Classical Conditioning in Female Rats Induced by Binge-Like Neonatal Alcohol Exposure

2013 ◽  
Vol 37 (9) ◽  
pp. 1561-1570 ◽  
Author(s):  
Jennifer L. Wagner ◽  
Anna Y. Klintsova ◽  
William T. Greenough ◽  
Charles R. Goodlett
Alcohol ◽  
2009 ◽  
Vol 43 (5) ◽  
pp. 387-396 ◽  
Author(s):  
Yuhua Z. Farnell ◽  
Gregg C. Allen ◽  
Nichole Neuendorff ◽  
James R. West ◽  
A. Chen Wei-Jung ◽  
...  

2020 ◽  
Author(s):  
Andres P Varani ◽  
Romain W Sala ◽  
Caroline Mailhes-Hamon ◽  
Jimena L Frontera ◽  
Clément Léna ◽  
...  

SUMMARYThe contribution of cerebellum to motor learning is often considered to be limited to adaptation, a short-timescale tuning of reflexes and previous learned skills. Yet, the cerebellum is reciprocally connected to two main players of motor learning, the motor cortex and the basal ganglia, via the ventral and midline thalamus respectively. Here, we evaluated the contribution of cerebellar neurons projecting to these thalamic nuclei in a skilled locomotion task in mice. In the cerebellar nuclei, we found task-specific neuronal activities during the task, and lasting changes after the task suggesting an offline processing of task-related information. Using pathway-specific inhibition, we found that dentate neurons projecting to the midline thalamus contribute to learning and retrieval, while interposed neurons projecting to the ventral thalamus contribute to the offline consolidation of savings. Our results thus show that two parallel cerebello-thalamic pathways perform distinct computations operating on distinct timescales in motor learning.


2018 ◽  
Vol 132 (6) ◽  
pp. 497-511 ◽  
Author(s):  
Sarah A. Jablonski ◽  
Patrese A. Robinson-Drummer ◽  
William B. Schreiber ◽  
Arun Asok ◽  
Jeffrey B. Rosen ◽  
...  

1998 ◽  
Vol 69 (3) ◽  
pp. 290-306 ◽  
Author(s):  
Jeffrey A. Kleim ◽  
Michelle A. Pipitone ◽  
Cheryl Czerlanis ◽  
William T. Greenough

2003 ◽  
Vol 23 (31) ◽  
pp. 10002-10012 ◽  
Author(s):  
Alexandre E. Medina ◽  
Thomas E. Krahe ◽  
David M. Coppola ◽  
Ary S. Ramoa

1992 ◽  
Vol 12 (1) ◽  
pp. 110-119 ◽  
Author(s):  
Krystyna R. Isaacs ◽  
Brenda J. Anderson ◽  
Adriana A. Alcantara ◽  
James E. Black ◽  
William T. Greenough

This study compared the morphology of cerebellar cortex in adult female rats exposed for 1 month to repetitive exercise, motor learning, or an inactive condition. In the exercise conditions, rats that were run on a treadmill or housed with access to a running wheel had a shorter diffusion distance from blood vessels in the molecular layer of the paramedian lobule when compared to rats housed individually or rats that participated in a motor skill learning task. Rats taught complex motor skills substantially increased the volume of the molecular layer per Purkinje neuron and increased blood vessel number sufficiently to maintain the diffusion distance. These results dissociate angiogenesis associated with increased neuropil volume (as seen in the motor learning group) from angiogenesis associated with increased metabolic demands (as seen in the exercise groups). While the volume fraction of mitochondria did not differ among groups, the mitochondrial volume fraction per Purkinje cell was significantly increased in the motor skill rats. This appears to parallel the previously reported increase in synapses and associated neuropil volume change.


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