Title
Distributed cerebellar plasticity implements multiple-scale memory components of Vestibulo-Ocular Reflex in real-robots
Abstract
The cerebellum plays a crucial role in motor learning and it acts as a predictive controller. A biological inspired cerebellar model with distributed plasticity has been embedded into a real-time controller of a neurorobot. A cerebellum-driven task has been designed: the Vestibulo-Ocular Reflex (VOR), which produces eye movements stabilizing images on the retina during head movement. The cerebellar controller drives eye compensation, by providing joint torque based on network output activity. We compared a cerebellar controller with only the cortical plasticity and a cerebellar controller with also the plasticity mechanisms at deep nuclei, in VOR multiple sessions. The results were interpreted using a two state multi-rate model integrating two learning processes with different sensitivities to error and different retention strengths. The cerebellar model showed effective learning along task repetitions, allowing a fine timing and gain adaptation based on the head stimulus. The multisite plasticity proved superior to single-site plasticity in generating human-like VOR during acquisition, extinction and consolidation.
Year
DOI
Venue
2014
10.1109/BIOROB.2014.6913879
BioRob
Keywords
Field
DocType
computational modeling,head
Neuroscience,Control theory,Motor learning,Reflex,Vestibulo–ocular reflex,Control engineering,Eye movement,Engineering,Neuroplasticity,Cerebellum,Plasticity
Conference
ISSN
Citations 
PageRank 
2155-1774
0
0.34
References 
Authors
5
5
Name
Order
Citations
PageRank
claudia casellato100.34
alberto antonietti200.34
jesus a garrido300.34
alessandra pedrocchi400.34
Egidio D'Angelo55712.77