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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...

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Related Experiment Video

Updated: May 30, 2026

Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats
10:51

Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats

Published on: May 11, 2018

Closed-loop seizure control on epileptic rat models.

Sheng-Fu Liang1, Yi-Cheng Liao, Fu-Zen Shaw

  • 1Institute of Medical Informatics, National Cheng Kung University, Tainan 701, Taiwan. sfliang@mail.ncku.edu.tw

Journal of Neural Engineering
|July 22, 2011
PubMed
Summary
This summary is machine-generated.

This study developed a wireless closed-loop seizure controller for epilepsy treatment. The device accurately detects and suppresses both convulsive and non-convulsive seizures in rat models using electrical stimulation.

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Last Updated: May 30, 2026

Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats
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Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
09:07

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins

Published on: August 15, 2017

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Epilepsy Research

Background:

  • Epilepsy management often involves pharmacological treatments, but alternative therapies are being explored.
  • Epileptic animal models are vital for evaluating novel therapeutic strategies.
  • Developing effective, real-time seizure control systems is a significant challenge.

Purpose of the Study:

  • To develop diverse epileptic rat models for research.
  • To create a portable, wireless, closed-loop seizure controller with online detection and real-time electrical stimulation.
  • To assess the controller's efficacy in eliminating seizures in developed animal models.

Main Methods:

  • Development of spontaneous non-convulsive and pentylenetetrazol (PTZ)-induced convulsive epileptic rat models.
  • Design and implementation of a portable wireless closed-loop seizure controller for online seizure detection and electrical stimulation.
  • Application of the controller to epileptic rats to evaluate seizure detection accuracy, latency, false stimulation rate, and seizure suppression efficacy.

Main Results:

  • Seizure detection accuracy exceeded 92% (up to 99%) with an average latency under 0.6 seconds for both seizure types.
  • The false stimulation rate averaged 3.1%.
  • 90% of non-convulsive seizures were suppressed with one 0.5s stimulation, while 30% of PTZ-induced convulsive seizures required more than two stimulations.

Conclusions:

  • The developed closed-loop seizure controller demonstrates high accuracy and efficiency in detecting and suppressing both non-convulsive and convulsive seizures in rat models.
  • This technology shows promise as a novel alternative or adjunctive therapy for epilepsy management.
  • Further research and development could lead to effective wearable devices for real-time epilepsy seizure control.