Synaptic Conductive Behavior
Synaptic Conductive Behavior - Related Videos
11:46
Implementing Dynamic Clamp with Synaptic and Artificial Conductances in Mouse Retinal Ganglion Cells
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Cited by 5 •
2013
This video article illustrates the set-up, the procedures to patch cell bodies and how to implement dynamic clamp recordings from ganglion cells in whole-mount mouse retinae. This technique allows the investigation of the precise contribution of excitatory and inhibitory synaptic inputs, and their relative magnitude and timing to neuronal spiking.
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.
09:51
Monitoring Changes in the Intracellular Calcium Concentration and Synaptic Efficacy in the Mollusc Aplysia
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Cited by 4 •
2012
We demonstrate how changes in the intracellular free calcium concentration and synaptic efficacy can be simultaneously monitored in a ganglion preparation of Aplysia. We image intracellular calcium using a fluorescent dye, Calcium Orange, and induce and monitor synaptic transmission with sharp (intracellular) electrodes.
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.
12:22
Automated Quantification of Synaptic Fluorescence in C. elegans
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Cited by 5 •
2012
The abundance of neurotransmitter receptors clustered at synapses strongly influences synaptic strength. This method quantifies fluorescently-labeled neurotransmitter receptors in three dimensions with single-synapse resolution in C. elegans, allowing hundreds of synapses to be rapidly characterized within a single sample without distortions introduced by z-plane projection.
FAQs
Ion migration changes the concentration or spatial arrangement of mobile charge carriers within a chemically active material or device. Charge trapping can also modify how readily those carriers move under an applied voltage. Because these changes depend on prior stimulation, the resulting conductance reflects electrical or chemical history rather than only the immediate input.
The duration of a conductance change depends on how reversibly the underlying chemical or ionic rearrangement occurs. Processes that relax after stimulation can produce short-term responses, whereas changes that remain after the stimulus support longer-term behavior. Measuring retention therefore helps distinguish transient signal adaptation from more persistent, learning-like changes.
Reversible redox reactions can change the chemical state of a system without requiring a permanent structural transformation. By altering the concentration or arrangement of mobile charge carriers, they can raise or lower conductance in response to applied voltage or chemical input. Their reversibility makes them relevant for repeatedly modulated conductance and chemically responsive device behavior.
Characterization commonly examines conductivity, retention, and responses to repeated stimuli. Conductivity indicates the device or material's electrical state, retention shows how long that state remains, and repeated-stimulus measurements reveal history dependence. Taken together, these observations connect molecular processes such as ion movement, charge trapping, or redox change with larger-scale learning functions.
An applied voltage or a chemical stimulus can drive the conductance-changing processes described for chemically active systems. The input may promote ion migration, charge trapping, or a reversible redox reaction, depending on the material or device. Comparing responses to different stimuli helps identify how chemical inputs and electrical inputs influence the resulting conductive state.
Chemistry helps explain how molecular-scale reactions and mobile charge carriers produce measurable changes in conductivity. Materials science then connects those processes to device behavior, while neuromorphic engineering applies the behavior to artificial synapses, adaptive sensors, and low-power computing architectures. This interdisciplinary link makes conductance history a route for studying chemical processes through functional devices.