Results 51 to 60 of about 9,287 (251)
Advanced Science, EarlyView.By combining ionic nonvolatile memories and transistors, this work proposes a compact synaptic unit to enable low‐precision neural network training. The design supports in situ weight quantization without extra programming and achieves accuracy comparable to ideal methods. This work obtains energy consumption advantage of 25.51× (ECRAM) and 4.84× (RRAM)
Zhen Yang +9 more
wiley +1 more source
Characterization of NMDAR-independent learning in the hippocampus.
Frontiers in Behavioral Neuroscience, 2011 It is currently thought that memory formation requires the activation of NMDA receptors (NMDARs) in the hippocampus. However, recent studies indicate that these receptors are not necessary for all forms of learning. The current experiments examine this
Kaycie Kuss Tayler +6 more
doaj +1 more source
Regulation of Neuromodulator Receptor Efficacy - Implications for Whole-Neuron and Synaptic Plasticity [PDF]
, 2004 Membrane receptors for neuromodulators (NM) are highly regulated in their distribution and efficacy - a phenomenon which influences the individual cell's response to central signals of NM release.
Scheler, Gabriele
core +1 more source
Advanced Electronic Materials, EarlyView.5 nm HfO2 memristors exhibit a fully reversible, voltage‐controlled transition between filamentary and interfacial switching within the same device. At high voltages, a filament forms and dominates the conduction, whereas at lower voltages the device reversibly returns to interfacial mode without defect accumulation, implying a new reversible ...
Cuo Wu +8 more
wiley +1 more source
Emerging Link between Alzheimer’s Disease and Homeostatic Synaptic Plasticity
Neural Plasticity, 2016 Alzheimer’s disease (AD) is an irreversible brain disorder characterized by progressive cognitive decline and neurodegeneration of brain regions that are crucial for learning and memory.
Sung-Soo Jang, Hee Jung Chung
doaj +1 more source
Models of metaplasticity: a review of concepts
Frontiers in Computational Neuroscience, 2015 Part of hippocampal or cortical plasticity is characterized by synaptic modifications as a function of the joint activity of the pre- and postsynaptic neurons.
Pierre eYger, Matthieu eGilson
doaj +1 more source
Mechanisms of heterosynaptic metaplasticity [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2014 Synaptic plasticity is fundamental to the neural processes underlying learning and memory. Interestingly, synaptic plasticity itself can be dynamically regulated by prior activity, in a process termed ‘metaplasticity’, which can be expressed both homosynaptically and heterosynaptically.
Hulme, Sarah R. +4 more
openaire +3 more sources
Visualization of the distribution of autophosphorylated calcium/calmodulin-dependent protein kinase II after tetanic stimulation in the CA1 area of the hippocampus [PDF]
, 1997 Autophosphorylation of calcium/calmodulin-dependent protein kinase II (CaMKII) at threonine-286 produces Ca2+-independent kinase activity and has been proposed to be involved in induction of long-term potentiation by tetanic stimulation in the ...
Harris, Kristen M. +4 more
core +2 more sources
Advanced Energy and Sustainability Research, EarlyView.Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar +2 more
wiley +1 more source
Frontiers in Cellular Neuroscience, 2022 Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique (NIBS) that has been proven to promote beneficial effects in a range of neurological and psychiatric disorders.
Saviana Antonella Barbati +4 more
doaj +1 more source