AIMC Topic: Neuronal Plasticity

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Familiarity Detection is an Intrinsic Property of Cortical Microcircuits with Bidirectional Synaptic Plasticity.

eNeuro May 22, 2017
Humans instantly recognize a previously seen face as "familiar." To deepen our understanding of familiarity-novelty detection, we simulated biologically plausible neural network models of generic cortical microcircuits consisting of spiking neurons w...
Computer Simulation Learning Neuronal Plasticity Action Potentials Humans Neural Networks, Computer Receptors, N-Methyl-D-Aspartate Cerebral Cortex Neural Pathways Facial Recognition Recognition, Psychology Unsupervised Machine Learning Discriminant Analysis Neurons Calcium
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The effectiveness of Robot-Assisted Gait Training versus conventional therapy on mobility in severely disabled progressIve MultiplE sclerosis patients (RAGTIME): study protocol for a randomized controlled trial.

Trials Feb 27, 2017
BACKGROUND: Gait and mobility impairments affect the quality of life (QoL) of patients with progressive multiple sclerosis (MS). Robot-assisted gait training (RAGT) is an effective rehabilitative treatment but evidence of its superiority compared to ...
Research Design Biomarkers Female Aged Humans Middle Aged Severity of Illness Index Surveys and Questionnaires Adolescent Time Factors Young Adult Adult Biomechanical Phenomena Male Clinical Protocols Multiple Sclerosis, Chronic Progressive Single-Blind Method Italy Walking Gait Exercise Therapy Exercise Tolerance Muscle Fatigue Mobility Limitation Recovery of Function Robotics Postural Balance Disability Evaluation Persons with Disabilities Treatment Outcome Neuronal Plasticity Muscle, Skeletal
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Biologically plausible learning in neural networks with modulatory feedback.

Neural networks : the official journal of the International Neural Network Society Jan 28, 2017
Although Hebbian learning has long been a key component in understanding neural plasticity, it has not yet been successful in modeling modulatory feedback connections, which make up a significant portion of connections in the brain. We develop a new ...
Pattern Recognition, Automated Learning Feedback Neuronal Plasticity Models, Neurological Humans Neural Networks, Computer Machine Learning Brain
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Spatio-Temporal Tolerance of Visuo-Tactile Illusions in Artificial Skin by Recurrent Neural Network with Spike-Timing-Dependent Plasticity.

Scientific reports Jan 20, 2017
Perceptual illusions across multiple modalities, such as the rubber-hand illusion, show how dynamic the brain is at adapting its body image and at determining what is part of it (the self) and what is not (others). Several research studies showed tha...
Skin Physiological Phenomena Parietal Lobe Illusions Humans Neural Networks, Computer Neuronal Plasticity Models, Neurological Action Potentials Body Image Neurons
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Rehabilitation robotics for the upper extremity: review with new directions for orthopaedic disorders.

Disability and rehabilitation. Assistive technology Dec 30, 2016
The focus of research using technological innovations such as robotic devices has been on interventions to improve upper extremity function in neurologic populations, particularly patients with stroke. There is a growing body of evidence describing r...
Humans Virtual Reality Neuronal Plasticity Recovery of Function Robotics Wrist Hand Exercise Therapy Musculoskeletal Diseases Upper Extremity
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Synaptic Correlates of Working Memory Capacity.

Neuron Dec 29, 2016
Psychological studies indicate that human ability to keep information in readily accessible working memory is limited to four items for most people. This extremely low capacity severely limits execution of many cognitive tasks, but its neuronal under...
Neuronal Plasticity Memory, Short-Term Synapses Neural Inhibition Humans Neural Networks, Computer
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Decision making under uncertainty in a spiking neural network model of the basal ganglia.

Journal of integrative neuroscience Dec 21, 2016
The mechanisms of decision-making and action selection are generally thought to be under the control of parallel cortico-subcortical loops connecting back to distinct areas of cortex through the basal ganglia and processing motor, cognitive and limbi...
Reward Synapses Neuronal Plasticity Cerebral Cortex Extinction, Psychological Models, Neurological Uncertainty Reversal Learning Motor Activity Decision Making Neural Networks, Computer Basal Ganglia Macaca Neurons Animals
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Cognitive memory and mapping in a brain-like system for robotic navigation.

Neural networks : the official journal of the International Neural Network Society Dec 7, 2016
Electrophysiological studies in animals may provide a great insight into developing brain-like models of spatial cognition for robots. These studies suggest that the spatial ability of animals requires proper functioning of the hippocampus and the en...
Entorhinal Cortex Spatial Navigation Brain Robotics Animals Hippocampus Cognition Memory Neuronal Plasticity Maze Learning Brain Mapping
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An integrated model of pitch perception incorporating place and temporal pitch codes with application to cochlear implant research.

Hearing research Nov 12, 2016
Although the neural mechanisms underlying pitch perception are not yet fully understood, there is general agreement that place and temporal representations of pitch are both used by the auditory system. This paper describes a neural network model of ...
Acoustic Stimulation Prosthesis Design Persons with Hearing Disabilities Auditory Pathways Humans Acoustics Models, Psychological Periodicity Neural Networks, Computer Sound Spectrography Cochlear Implants Pitch Discrimination Time Factors Cues Pitch Perception Neuronal Plasticity
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Anti-correlations in the degree distribution increase stimulus detection performance in noisy spiking neural networks.

Journal of computational neuroscience Nov 4, 2016
Neuronal circuits in the rodent barrel cortex are characterized by stable low firing rates. However, recent experiments show that short spike trains elicited by electrical stimulation in single neurons can induce behavioral responses. Hence, the unde...
Action Potentials Neural Networks, Computer Neurons Learning Nerve Net Neuronal Plasticity Models, Neurological
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