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Related Concept Videos

Seizures ll: Types01:19

Seizures ll: Types

2
Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...
2
Seizures l: Introduction01:20

Seizures l: Introduction

2
Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
2
Seizures: Classification01:13

Seizures: Classification

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
2.4K
Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

1.7K
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...
1.7K
Epilepsy ll: Types01:22

Epilepsy ll: Types

1
Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
1

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Related Experiment Video

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Multi-system Monitoring for Identification of Seizures, Arrhythmias and Apnea in Conscious Restrained Rabbits
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Finger snapping during seizures.

M J Overdijk1, M Zijlmans2, P H Gosselaar3

  • 1Department of Neurology, Medical Center The Hague, The Hague, The Netherlands.

Epilepsy & Behavior Case Reports
|February 11, 2015
PubMed
Summary
This summary is machine-generated.

Two epilepsy patients experienced finger snapping during intracranial EEG monitoring. This movement correlated with electrical activity spreading from the supplementary motor area to the temporal lobe, indicating a potential link to epilepsy surgery evaluation.

Keywords:
AutomatismComplex partial seizureEpilepsyFinger snappingIntracranial EEGSemiology

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Area of Science:

  • Neuroscience
  • Epileptology
  • Surgical Neurology

Background:

  • Intracranial electroencephalography (EEG) is crucial for epilepsy surgery evaluation.
  • Understanding the pathophysiology of motor phenomena during monitoring is essential for accurate localization.

Observation:

  • Two patients undergoing invasive EEG monitoring for epilepsy surgery exhibited spontaneous finger snapping of the right hand.
  • The finger-snapping movements were observed during the evaluation period.

Findings:

  • Correlation between finger-snapping episodes and specific EEG changes was noted.
  • EEG data revealed a spread of electrical activity from the supplementary motor area to the temporal region during finger snapping.
  • This suggests a potential neural network involvement in the observed motor phenomenon.

Implications:

  • The findings may offer insights into the neural mechanisms underlying motor symptoms in epilepsy.
  • Understanding this phenomenon could refine surgical planning and improve outcomes for epilepsy surgery patients.
  • Further research is warranted to explore the relationship between supplementary motor area, temporal lobe, and finger-snapping movements in epilepsy.