Results 11 to 20 of about 71,654 (304)

Postsynaptic activity of inhibitory neurons evokes hemodynamic fMRI responses [PDF]

open access: yesNeuroImage, 2021
Functional MRI responses are localized to the synaptic sites of evoked inhibitory neurons, but it is unknown whether, or by what mechanisms, these neurons initiate functional hyperemia.
Alexander John Poplawsky   +4 more
doaj   +2 more sources

Imperfect space clamp permits electrotonic interactions between inhibitory and excitatory synaptic conductances, distorting voltage clamp recordings. [PDF]

open access: yesPLoS ONE, 2011
The voltage clamp technique is frequently used to examine the strength and composition of synaptic input to neurons. Even accounting for imperfect voltage control of the entire cell membrane ("space clamp"), it is often assumed that currents measured at ...
Alon Poleg-Polsky, Jeffrey S Diamond
doaj   +3 more sources

Cortical PV and VIP interneurons similarly influence SST neuron output despite distinct unitary properties [PDF]

open access: yesCommunications Biology
Somatostatin (SST) expressing cells are powerful inhibitors of excitatory pyramidal neurons. It has been shown that SST cells are targeted by other inhibitory interneurons, namely parvalbumin- (PV) and vasoactive intestinal polypeptide- (VIP) expressing ...
Felix Preuss   +3 more
doaj   +2 more sources

Characteristics of long-duration inhibitory postsynaptic potentials in rat neocortical neuronsin vitro [PDF]

open access: yesCellular and Molecular Neurobiology, 1987
The characteristics of long-duration inhibitory postsynaptic potentials (1-IPSPs) which are evoked in rat frontal neocortical neurons by local electrical stimulation were investigated with intracellular recordings from an in vitro slice preparation. Stimulation with suprathreshold intensities evoked 1-IPSPs with typical durations of 600-900 msec at ...
Howe, James R.   +2 more
openaire   +6 more sources

Spike-timing dependent plasticity in inhibitory circuits [PDF]

open access: yesFrontiers in Synaptic Neuroscience, 2010
Inhibitory circuits in the brain rely on GABA-releasing interneurons. For long, inhibitory circuits were considered weakly plastic in the face of patterns of neuronal activity that trigger long-term changes in the synapses between excitatory principal ...
Karri P Lamsa   +2 more
doaj   +2 more sources

Melatonin suppresses abnormal hyperexcitability of hippocampal CA1 neurons in early-stage oxygen-glucose deprivation [PDF]

open access: yesFrontiers in Pharmacology
Excitotoxicity in the early stages of ischemia is a primary trigger of neuronal injury. Literature has indicated the potential neuroprotective effects of melatonin against ischemic hypoxic injury, but the direct electrophysiological mechanisms underlying
Yang Cui, Qi Wang, Chao Liu, Heng Zhou
doaj   +2 more sources

Visualization by high resolution immunoelectron microscopy of the transient receptor potential vanilloid-1 at inhibitory synapses of the mouse dentate gyrus. [PDF]

open access: yesPLoS ONE, 2015
We have recently shown that the transient receptor potential vanilloid type 1 (TRPV1), a non-selective cation channel in the peripheral and central nervous system, is localized at postsynaptic sites of the excitatory perforant path synapses in the ...
Miren-Josune Canduela   +7 more
doaj   +1 more source

Spiking Neural P Systems with Membrane Potentials, Inhibitory Rules, and Anti-Spikes

open access: yesEntropy, 2022
Spiking neural P systems (SN P systems for short) realize the high abstraction and simulation of the working mechanism of the human brain, and adopts spikes for information encoding and processing, which are regarded as one of the third-generation neural
Yuping Liu, Yuzhen Zhao
doaj   +1 more source

The Yin and Yang of GABAergic and Glutamatergic Synaptic Plasticity: Opposites in Balance by Crosstalking Mechanisms

open access: yesFrontiers in Synaptic Neuroscience, 2022
Synaptic plasticity is a critical process that regulates neuronal activity by allowing neurons to adjust their synaptic strength in response to changes in activity.
Caitlyn A. Chapman   +2 more
doaj   +1 more source

Inhibitory postsynaptic actions of taurine, GABA and other amino acids on motoneurons of the isolated frog spinal cord [PDF]

open access: yes, 1975
The actions of glycine, GABA, α-alanine, β-alanine and taurine were studied by intracellular recordings from lumbar motoneurons of the isolated spinal cord of the frog.
Krumnikl, J.   +9 more
core   +1 more source

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