Mean-field theory of a plastic network of integrate-and-fire neurons [PDF]
We consider a noise driven network of integrate-and-fire neurons. The network evolves as result of the activities of the neurons following spike-timing-dependent plasticity rules. We apply a self-consistent mean-field theory to the system to obtain the mean activity level for the system as a function of the mean synaptic weight, which predicts a first ...
arxiv +1 more source
Contribution of Membrane Lipids to Postsynaptic Protein Organization
The precise subsynaptic organization of proteins at the postsynaptic membrane controls synaptic transmission. In particular, postsynaptic receptor complexes are concentrated in distinct membrane nanodomains to optimize synaptic signaling.
Manon Westra+2 more
doaj +1 more source
Hair Cell Transduction, Tuning, and Synaptic Transmission in the Mammalian Cochlea.
Sound pressure fluctuations striking the ear are conveyed to the cochlea, where they vibrate the basilar membrane on which sit hair cells, the mechanoreceptors of the inner ear.
R. Fettiplace
semanticscholar +1 more source
NPY-mediated synaptic plasticity in the extended amygdala prioritizes feeding during starvation
Efficient control of feeding behavior requires the coordinated adjustment of complex motivational and affective neurocircuits. Neuropeptides from energy-sensing hypothalamic neurons are potent feeding modulators, but how these endogenous signals shape ...
Stephan Dodt+7 more
doaj +1 more source
Presynaptic Rac1 controls synaptic strength through the regulation of synaptic vesicle priming
Synapses contain a limited number of synaptic vesicles (SVs) that are released in response to action potentials (APs). Therefore, sustaining synaptic transmission over a wide range of AP firing rates and timescales depends on SV release and replenishment.
Christian Keine+9 more
doaj +1 more source
Synaptic Channel Modeling for DMC: Neurotransmitter Uptake and Spillover in the Tripartite Synapse [PDF]
In Diffusive Molecular Communication (DMC), information is transmitted by diffusing molecules. Synaptic signaling, as a natural implementation of this paradigm, encompasses functional components that, once understood, can facilitate the development of synthetic DMC systems.
arxiv +1 more source
Synaptic transmission and plasticity require AMPA receptor anchoring via its N-terminal domain
AMPA-type glutamate receptors (AMPARs) mediate fast excitatory neurotransmission and are selectively recruited during activity-dependent plasticity to increase synaptic strength.
J. Watson, Hinze Ho, I. Greger
semanticscholar +1 more source
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro+2 more
wiley +1 more source
Acid-Sensing Ion Channels Activated by Evoked Released Protons Modulate Synaptic Transmission at the Mouse Calyx of Held Synapse [PDF]
Acid-sensing ion channels (ASICs) regulate synaptic activities and play important roles in neurodegenerative diseases. We found that these channels can be activated in neurons of the medial nucleus of the trapezoid body (MNTB) of the auditory system in ...
Di Guilmi, Mariano Nicolás+3 more
core +1 more source
Rho GTPase signaling and mDia facilitate endocytosis via presynaptic actin
Neurotransmission at synapses is mediated by the fusion and subsequent endocytosis of synaptic vesicle membranes. Actin has been suggested to be required for presynaptic endocytosis but the mechanisms that control actin polymerization and its mode of ...
Kristine Oevel+6 more
doaj +1 more source