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Electrical Synapses

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Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
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Synaptic Signaling

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
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Muscle Stimulation Frequency

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Wave summation
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Related Experiment Video

Updated: Mar 1, 2026

Recording and Modulation of Epileptiform Activity in Rodent Brain Slices Coupled to Microelectrode Arrays

Recording and Modulation of Epileptiform Activity in Rodent Brain Slices Coupled to Microelectrode Arrays

Published on: May 15, 2018

Electrical stimulation can inhibit synchronized neuronal activity.

|September 10, 1986

Summary

This summary is machine-generated.

Electrical stimulation can reduce abnormal brain activity in the hippocampus. Synchronized electrical pulses effectively inhibited seizure-like neuronal firing, suggesting a potential new therapy for epilepsy.

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Last Updated: Mar 1, 2026

Recording and Modulation of Epileptiform Activity in Rodent Brain Slices Coupled to Microelectrode Arrays

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Published on: May 15, 2018

Direct-current Stimulation and Multi-electrode Array Recording of Seizure-like Activity in Mice Brain Slice Preparation

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Published on: June 7, 2016

Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo

Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo

Published on: March 31, 2016

Area of Science:

Neuroscience
Epilepsy research
Electrophysiology

Background:

Hippocampal epilepsy is characterized by abnormal neuronal activity.
Current treatments for epilepsy have limitations.
Understanding mechanisms to control neuronal hyperexcitability is crucial.

Purpose of the Study:

To investigate the effect of electrical stimulation on induced epileptiform activity in the hippocampus.
To determine if synchronized electrical stimulation can inhibit abnormal neuronal firing.

Main Methods:

Hippocampal slices were prepared and maintained in vitro.
Epileptiform activity was induced using penicillin or picrotoxin.
Extracellular field potentials were recorded.
Neurons were stimulated with a microelectrode synchronized with ongoing activity.

Main Results:

Synchronized electrical stimulation significantly decreased the amplitude of population spikes.
The inhibitory effect was dependent on the applied electrical charge.
Effective inhibition was achieved with charges comparable to those used in central nervous system nerve stimulation.

Conclusions:

Electrical stimulation synchronized with neuronal activity can effectively inhibit epileptiform discharges in the hippocampus.
This method shows promise as a potential therapeutic strategy for preventing epileptic seizure synchronization and propagation.