Results 41 to 50 of about 692 (188)

Energy‐Aware Perturbation Optimization for Memristor‐Array Convolutional Neural Networks

open access: yesAdvanced Intelligent Systems, EarlyView.
Memristor‐array inference becomes more energy efficient when layer inputs are reshaped before computation. Sinusoidal perturbation encoding with dual‐threshold screening reduces active voltage pulses and contracts ADC input‐current ranges, jointly lowering crossbar and peripheral energy while preserving accuracy across hardware MNIST validation, deep ...
Ao Xu   +6 more
wiley   +1 more source

Hippocampal Global Remapping Can Occur without Input from the Medial Entorhinal Cortex

open access: yesCell Reports, 2018
Summary: The high storage capacity of the episodic memory system relies on distinct representations for events that are separated in time and space. The spatial component of these computations includes the formation of independent maps by hippocampal ...
Magdalene I. Schlesiger   +4 more
doaj   +1 more source

Three types of remapping with linear decoders: A population-geometric perspective.

open access: yesPLoS Computational Biology
Hippocampal remapping, in which place cells form distinct activity maps across different environments, is a well-established phenomenon with a range of theoretical interpretations.
Guillermo Martín-Sánchez   +2 more
doaj   +1 more source

Transsaccadic working memory in healthy ageing and neurodegenerative disease

open access: yeseLife
The brain continuously integrates rapidly changing visual input across eye movements to maintain stable perception, yet the precise mechanisms underpinning dynamic working memory and how these break down in brain diseases remain unclear.
Sijia Zhao   +8 more
doaj   +1 more source

Primary visual cortical remapping in patients with inherited peripheral retinal degeneration

open access: yesNeuroImage: Clinical, 2017
Human studies addressing the long-term effects of peripheral retinal degeneration on visual cortical function and structure are scarce. Here we investigated this question in patients with Retinitis Pigmentosa (RP), a genetic condition leading to ...
Sónia Ferreira   +5 more
doaj   +1 more source

Unique deficits in place coding across subfields of the hippocampus in a mouse model of temporal lobe epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective Memory problems are comorbid with temporal lobe epilepsy (TLE). Animal models of TLE reveal impairments in spatial firing fields of hippocampal place cells, providing a potential neural substrate for memory problems. Each subfield of the hippocampus carries out unique aspects of spatial memory, yet little is known about how ...
Brittney L. Boublil   +4 more
wiley   +1 more source

Pre-saccadic remapping relies on dynamics of spatial attention

open access: yeseLife, 2018
Each saccade shifts the projections of the visual scene on the retina. It has been proposed that the receptive fields of neurons in oculomotor areas are predictively remapped to account for these shifts.
Martin Szinte   +3 more
doaj   +1 more source

Barrel cortex plasticity after photothrombotic stroke involves potentiating responses of pre-existing circuits but not functional remapping to new circuits

open access: yesNature Communications, 2021
Definitive evidence for functional remapping after stroke remains lacking. Here, the authors performed in vivo intrinsic signal imaging and two-photon calcium imaging of sensory-evoked responses before and after photothrombotic stroke and found no ...
William A. Zeiger   +5 more
doaj   +1 more source

Evidence tiers for strain‐resolved long‐read metagenomics

open access: yesiMetaOmics, EarlyView.
Long‐read metagenomics links variants, repeats, and mobile elements across individual molecules and can reveal lineage turnover that is obscured at the species level. The strength of the resulting inference, however, depends on the type and genomic span of the recovered linkage. We distinguish four evidence units—strain profiles, local haplotype blocks,
Yanhua Han   +7 more
wiley   +1 more source

Beyond correlation: optimal transport metrics for characterizing representational stability and remapping in neurons encoding spatial memory

open access: yesFrontiers in Cellular Neuroscience
IntroductionSpatial representations in the entorhinal cortex (EC) and hippocampus (HPC) are fundamental to cognitive functions like navigation and memory.
Andrew Aoun   +9 more
doaj   +1 more source

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