Synaptic Transmission
Synaptic Transmission - Related Videos
18:01
Paradigms for Pharmacological Characterization of C. elegans Synaptic Transmission Mutants
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Cited by 20 •
2008
This video demonstrates how to employ two neural stimulants, aldicarb and pentylenetetrazole (PTZ), in complementary ways to study synaptic function in the nematode, C. elegans. This complementary approach may also be used to shed light on evolutionarily conserved mechanisms for modulating neuronal synchrony and has implications for epilepsy and seizures.
08:38
Vibrodissociation of Neurons from Rodent Brain Slices to Study Synaptic Transmission and Image Presynaptic Terminals
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Cited by 17 •
2011
This report demonstrates a technique for mechanical isolation of individual viable neurons retaining attached presynaptic boutons. Vibrodissociated neurons have the advantages of rapid production, excellent pharmacological control and improved space-clamp without influence from neighboring cells. This method can be used for imaging of synaptic elements and patch-clamp recording.
05:41
Transmission Electron Microscopic Imaging of Synaptic Vesicle Endocytosis in Mouse Hippocampal Neurons
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2025
Source: Villarreal, S., et. al., Measuring Synaptic Vesicle Endocytosis in Cultured Hippocampal Neurons. J. Vis. Exp. (2017)This video demonstrates the analysis of synaptic vesicle endocytosis in cultured hippocampal neurons through horseradish peroxidase labeling and electron microscopy.
08:46
Studying Synaptic Vesicle Pools using Photoconversion of Styryl Dyes
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Cited by 18 •
2010
FM dyes have been of invaluable help in the understanding of synaptic dynamics. FMs are normally followed under the fluorescent microscope during different stimulation conditions. However, photoconversion of FM dyes combined with electron microscopy allows the visualization of distinct synaptic vesicle pools, among other ultrastructure components, in synaptic boutons.
09:30
Non-invasive Assessment of Changes in Corticomotoneuronal Transmission in Humans
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Cited by 6 •
2017
The aim of the present study was to assess changes in transmission at the corticomotoneuronal synapses in humans after repetitive transcranial magnetic stimulation. For this purpose, an electrophysiological method is introduced that allows assessment of pathway specific corticospinal transmission, i.e. differentiation of fast, direct corticospinal pathways from polysynaptic connections.
FAQs
At the presynaptic terminal, an arriving action potential opens voltage-gated calcium channels. The resulting calcium entry acts as the trigger for synaptic vesicles to release neurotransmitters, converting the electrical signal into a chemical signal. This coupling connects activity in the sending neuron with communication across the synapse.
Postsynaptic receptors determine how the receiving cell responds to released neurotransmitters. When neurotransmitter molecules bind these receptors, they alter ion flow across the postsynaptic cell. The resulting change can produce an excitatory response or an inhibitory response, allowing synaptic inputs to influence whether and how the receiving cell participates in nervous-system activity.
These two response types give synaptic transmission different effects on the postsynaptic cell. An excitatory response and an inhibitory response represent contrasting outcomes of neurotransmitter-receptor activity and altered ion flow. Their inclusion in neural communication helps explain how synaptic signals can shape sensory processing, movement, learning, and memory.
Disruption of synaptic transmission can have consequences beyond a single connection because this process supports nervous system function and behavior. The overview links such disruption to neurological and psychiatric disorders, making synaptic mechanisms relevant when researchers investigate how altered communication may relate to disease-associated changes.
Synaptic transmission supports several major biological functions, including sensory processing, movement, learning, and memory. These applications show why the process matters across biology: it connects cellular communication with the organism’s ability to interpret sensory information, control actions, and acquire or retain information. The same framework links neural activity to observable behavior.
Studying synaptic transmission gives biology researchers a way to examine brain development, neural circuits, and potential targeted therapeutics. These areas extend beyond describing a single cellular event: they use synaptic communication as a context for understanding how nervous systems are organized, how circuit-level function is investigated, and where interventions may be directed.