Concept

Neural facilitation

Publications associées (74)

Role of Protein Kinase C and Munc18-1 in a Presynaptic Form of Plasticity, Post-tetanic Potentiation

Neurons are arranged in networks in which they communicate between each other by the means of synapses. Synaptic transmission can undergo activity-dependent and short-lived changes in strength, known as short-term synaptic plasticity. Short-term plasticity ...

EPFL2013

Hyperconnectivity and Slow Synapses during Early Development of Medial Prefrontal Cortex in a Mouse Model for Mental Retardation and Autism

Michele Giugliano

Neuronal theories of neurodevelopmental disorders (NDDs) of autism and mental retardation propose that abnormal connectivity underlies deficits in attentional processing. We tested this theory by studying unitary synaptic connections between layer 5 pyrami ...

Oxford University Press2012

About similar characteristics of visual perceptual learning and LTP

Michael Herzog, Carl Kristoffer Aberg

Perceptual learning is an implicit form of learning which induces long-lasting perceptual enhancements. Perceptual learning shows intriguing characteristics. For example, a minimal number of trials per session is needed for learning and the interleaved pre ...

2012

Synaptotagmin increases the dynamic range of synapses by driving Ca2+ - evoked release and by clamping a near-linear remaining Ca2+ sensor

Ralf Schneggenburger, Olexiy Kochubey

Ca2+-evoked transmitter release shows a high dynamic range over spontaneous release. We investigated the role of the Ca2+ sensor protein, Synaptotagmin2 (Syt2), in both spontaneous and Ca2+-evoked release under direct control of presynaptic Ca2+, usin ...

2011

Propagation of fast and slow intercellular Ca2+ waves in primary cultured arterial smooth muscle cells

Jean-Jacques Meister, Jean-Louis Bény, Nadia Halidi

Smooth muscle contraction is regulated by changes in cytosolic Ca2+ concentration (Ca2+). In response to stimulation, Ca2+ increase in a single cell can propagate to neighbouring cells through gap junctions, as intercellular Ca2+ waves. To investigate ...

2011

A peptide mimetic targeting trans-homophilic NCAM binding sites promotes spatial learning and neural plasticity in the hippocampus

Maria del Carmen Sandi Perez, Lisa Conboy, Martina Fantin

The key roles played by the neural cell adhesion molecule (NCAM) in plasticity and cognition underscore this membrane protein as a relevant target to develop cognitive-enhancing drugs. However, NCAM is a structurally and functionally complex molecule with ...

Public Library of Science2011

RIM Determines Ca²+ Channel Density and Vesicle Docking at the Presynaptic Active Zone

Yunyun Han

Fast neurotransmitter release is essential for neuron-neuron communication and is initiated by the opening of voltage-gated Ca2+ channels close to docked vesicles at the presynaptic active zone. The high concentration of Ca2+ channels at the active zone is ...

EPFL2011

Astrocyte-neuron lactate transport is required for long-term memory formation

We report that, in the rat hippocampus, learning leads to a significant increase in extracellular lactate levels that derive from glycogen, an energy reserve selectively localized in astrocytes. Astrocytic glycogen breakdown and lactate release are essenti ...

2011

Interaction between Facilitation and Depression at a Large CNS Synapse Reveals Mechanisms of Short-Term Plasticity

Ralf Schneggenburger, Olexiy Kochubey, Martin Guillermo Mueller

The two fundamental forms of short-term plasticity, short-term depression and facilitation, coexist at most synapses, but little is known about their interaction. Here, we studied the interplay between short-term depression and facilitation at calyx of Hel ...

Society for Neuroscience2010

Spike-timing dependent plasticity

Wulfram Gerstner

Spike Timing Dependent Plasticity (STDP) is a temporally asymmetric form of Hebbian learning induced by tight temporal correlations between the spikes of pre- and postsynaptic neurons. As with other forms of synaptic plasticity, it is widely believed that ...

2010

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