Search Results - "Stefanini, Fabio"
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A reconfigurable on-line learning spiking neuromorphic processor comprising 256 neurons and 128K synapses
Published in Frontiers in neuroscience (29-04-2015)“…Implementing compact, low-power artificial neural processing systems with real-time on-line learning abilities is still an open challenge. In this paper we…”
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Coding of social novelty in the hippocampal CA2 region and its disruption and rescue in a 22q11.2 microdeletion mouse model
Published in Nature neuroscience (01-11-2020)“…The hippocampal CA2 region is essential for social memory. To determine whether CA2 activity encodes social interactions, we recorded extracellularly from CA2…”
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Scale-free correlations in starling flocks
Published in Proceedings of the National Academy of Sciences - PNAS (29-06-2010)“…From bird flocks to fish schools, animal groups often seem to react to environmental perturbations as if of one mind. Most studies in collective animal…”
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A Distributed Neural Code in the Dentate Gyrus and in CA1
Published in Neuron (Cambridge, Mass.) (19-08-2020)“…Neurons are often considered specialized functional units that encode a single variable. However, many neurons are observed to respond to a mix of disparate…”
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Neural representational geometries reflect behavioral differences in monkeys and recurrent neural networks
Published in Nature communications (01-08-2024)“…Animals likely use a variety of strategies to solve laboratory tasks. Traditionally, combined analysis of behavioral and neural recording data across subjects…”
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Face familiarity detection with complex synapses
Published in iScience (20-01-2023)“…Synaptic plasticity is a complex phenomenon involving multiple biochemical processes that operate on different timescales. Complexity can greatly increase…”
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A Scalable Multicore Architecture With Heterogeneous Memory Structures for Dynamic Neuromorphic Asynchronous Processors (DYNAPs)
Published in IEEE transactions on biomedical circuits and systems (01-02-2018)“…Neuromorphic computing systems comprise networks of neurons that use asynchronous events for both computation and communication. This type of representation…”
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Neuromorphic Electronic Circuits for Building Autonomous Cognitive Systems
Published in Proceedings of the IEEE (01-09-2014)“…Several analog and digital brain-inspired electronic systems have been recently proposed as dedicated solutions for fast simulations of spiking neural…”
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Hippocampal Network Reorganization Underlies the Formation of a Temporal Association Memory
Published in Neuron (Cambridge, Mass.) (22-07-2020)“…Episodic memory requires linking events in time, a function dependent on the hippocampus. In “trace” fear conditioning, animals learn to associate a neutral…”
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The implications of categorical and category-free mixed selectivity on representational geometries
Published in Current opinion in neurobiology (01-12-2022)“…The firing rates of individual neurons displaying mixed selectivity are modulated by multiple task variables. When mixed selectivity is nonlinear, it confers…”
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Neural dynamics underlying associative learning in the dorsal and ventral hippocampus
Published in Nature neuroscience (01-05-2023)“…Animals associate cues with outcomes and update these associations as new information is presented. This requires the hippocampus, yet how hippocampal neurons…”
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The Dentate Gyrus Classifies Cortical Representations of Learned Stimuli
Published in Neuron (Cambridge, Mass.) (08-07-2020)“…Animals must discern important stimuli and place them onto their cognitive map of their environment. The neocortex conveys general representations of sensory…”
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A hybrid analog/digital Spike-Timing Dependent Plasticity learning circuit for neuromorphic VLSI multi-neuron architectures
Published in 2014 IEEE International Symposium on Circuits and Systems (ISCAS) (01-06-2014)“…To endow large scale VLSI networks of spiking neurons with learning abilities it is important to develop compact and low power circuits that implement synaptic…”
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Conference Proceeding -
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Spike-based learning with a generalized integrate and fire silicon neuron
Published in 2010 IEEE International Symposium on Circuits and Systems (ISCAS) (01-05-2010)“…Spike-based learning circuits have been typically used in conjunction with linear integrate-and-flre neurons. As a new class of current-mode conductance-based…”
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Conference Proceeding -
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New statistical tools for analyzing the structure of animal groups
Published in Mathematical biosciences (01-07-2008)“…The statistical characterization of the spatial structure of large animal groups has been very limited so far, mainly due to a lack of empirical data,…”
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PyNCS: a microkernel for high-level definition and configuration of neuromorphic electronic systems
Published in Frontiers in neuroinformatics (29-08-2014)“…Neuromorphic hardware offers an electronic substrate for the realization of asynchronous event-based sensory-motor systems and large-scale spiking neural…”
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Systematic configuration and automatic tuning of neuromorphic systems
Published in 2011 IEEE International Symposium of Circuits and Systems (ISCAS) (01-05-2011)“…In the past recent years several research groups have proposed neuromorphic Very Large Scale Integration (VLSI) devices that implement event-based sensors or…”
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Conference Proceeding -
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A scalable multi-core architecture with heterogeneous memory structures for Dynamic Neuromorphic Asynchronous Processors (DYNAPs)
Published 16-08-2017“…Neuromorphic computing systems comprise networks of neurons that use asynchronous events for both computation and communication. This type of representation…”
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Neuromorphic electronic circuits for building autonomous cognitive systems
Published 25-03-2014“…Proceedings of IEEE, 102:9, (2014), pg. 1367-1388 Several analog and digital brain-inspired electronic systems have been recently proposed as dedicated…”
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