Results 21 to 30 of about 9,287 (251)

Synaptic metaplasticity underlies tetanic potentiation in Lymnaea: a novel paradigm [PDF]

open access: yes, 2013
We present a mathematical model which explains and interprets a novel form of short-term potentiation, which was found to be use-, but not time-dependent, in experiments done on Lymnaea neurons.
Luck, Jean-Marc   +3 more
core   +10 more sources

Naturalistic Spike Trains Drive State-Dependent Homeostatic Plasticity in Superficial Layers of Visual Cortex

open access: yesFrontiers in Synaptic Neuroscience, 2021
The history of neural activity determines the synaptic plasticity mechanisms employed in the brain. Previous studies report a rapid reduction in the strength of excitatory synapses onto layer 2/3 (L2/3) pyramidal neurons of the primary visual cortex (V1)
Varun Chokshi   +13 more
doaj   +1 more source

Further evidence that CP-AMPARs are critically involved in synaptic tag and capture at hippocampal CA1 synapses

open access: yesMolecular Brain, 2021
The synaptic tag and capture (STC) hypothesis provides an important theoretical basis for understanding the synaptic basis of associative learning. We recently provided pharmacological evidence that calcium-permeable AMPA receptors (CP-AMPARs) are a ...
Pojeong Park   +5 more
doaj   +1 more source

Synaptic plasticity and preliminary-spike-enhanced plasticity in a CMOS-compatible Ta2O5 memristor

open access: yesMaterials & Design, 2020
An artificial synapse that can perform both learning and memory functions was realized using an amorphous Ta2O5 memristor. A Pt/Ta2O5/TiN memristor, with an amorphous Ta2O5 film grown at 100 °C, exhibited reliable bipolar switching properties at the ...
Hyun–Gyu Hwang   +6 more
doaj   +1 more source

Train duration and inter-train interval determine the direction and intensity of high-frequency rTMS after-effects

open access: yesFrontiers in Neuroscience, 2023
Background and objectiveIt has been proved that repetitive transcranial magnetic stimulation (rTMS) triggers the modulation of homeostatic metaplasticity, which causes the effect of rTMS to disappear or even reverse, and a certain length of interval ...
Jingna Jin   +6 more
doaj   +1 more source

Metaplastic Breast Cancer [PDF]

open access: yesJournal of Breast Health, 2016
Metaplastic Breast Cancer (MBC) is a term referring to a heterogeneous group with malignant epithelial and mesenchymal tissue components. MBC is a rare disease, accounting for 0.2% of all breast cancers. Most MBC are triple negative cancers with poor prognosis and an aggressive clinical course.
GÖKGÖZ, MUSTAFA ŞEHSUVAR   +2 more
openaire   +4 more sources

A Systematic Review of the Safety and Tolerability of Theta Burst Stimulation in Children and Adolescents

open access: yesNeuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Theta burst stimulation (TBS) is often used in clinical practice and research protocols for adults with neuropsychiatric disorders. There are substantial knowledge gaps related to the application of TBS in children and adolescents.
Rana Elmaghraby   +5 more
wiley   +1 more source

Structural plasticity can produce metaplasticity. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Synaptic plasticity underlies many aspect of learning memory and development. The properties of synaptic plasticity can change as a function of previous plasticity and previous activation of synapses, a phenomenon called metaplasticity ...
Georgios Kalantzis, Harel Z Shouval
doaj   +1 more source

Spinal Metaplasticity in Respiratory Motor Control

open access: yesFrontiers in Neural Circuits, 2015
A hallmark feature of the neural system controlling breathing is its ability to exhibit plasticity. Less appreciated is the ability to exhibit metaplasticity, a change in the capacity to express plasticity (ie. plastic plasticity). Recent advances in our
Gordon S Mitchell, Daryl P Fields
doaj   +1 more source

Enhanced polychronisation in a spiking network with metaplasticity

open access: yesFrontiers in Computational Neuroscience, 2015
Computational models of metaplasticity have usually focused on the modeling of single synapses (Shouval et al., 2002). In this paper we study the effect of metaplasticity on network behavior.
Mira eGuise   +2 more
doaj   +1 more source

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