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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...
Seizures: Classification01:13

Seizures: Classification

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:
Epilepsy ll: Types01:22

Epilepsy ll: Types

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.
Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
Seizures ll: Types01:19

Seizures ll: Types

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...

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Related Experiment Video

Updated: May 18, 2026

Performing Behavioral Tasks in Subjects with Intracranial Electrodes
12:10

Performing Behavioral Tasks in Subjects with Intracranial Electrodes

Published on: October 2, 2014

Aggressive behavior and epilepsy: a multicenter study.

Ada Piazzini1, Francesca Bravi, Valeria Edefonti

  • 1Epilepsy Center, Neurology II, St. Paolo Hospital, Milan, Italy. ada.piazzini1@gmail.com

Epilepsia
|September 11, 2012
PubMed
Summary

Aggressive behavior in epilepsy patients differs from the general population. Factors like intellectual functioning, psychiatric issues, and disease duration significantly influence aggressiveness in individuals with epilepsy.

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Area of Science:

  • Neurology
  • Psychiatry
  • Epidemiology

Background:

  • Epilepsy is a chronic neurological disorder affecting millions worldwide.
  • Aggressive behavior is a recognized but not fully understood comorbidity in epilepsy.
  • Previous research has not comprehensively identified factors associated with aggression in this population.

Purpose of the Study:

  • To characterize aggressive behavior in a large cohort of epilepsy patients.
  • To investigate the association between aggressiveness and various clinical and sociodemographic factors.
  • To establish a foundation for future research into the epilepsy-aggression link.

Main Methods:

  • A cross-sectional study involving 503 epilepsy patients across nine Italian centers.
  • Standardized assessment of aggressive responses using the Aggression Questionnaire (AQ).
  • Statistical analysis to identify significant predictors of aggressiveness, adjusting for relevant variables.

Main Results:

  • Aggressiveness levels in epilepsy patients were found to differ from the general Italian population.
  • Significant associations were identified between aggressiveness and compromised intellectual functioning, psychiatric disturbances, and disability status.
  • Other key factors included number of medications, geographic distribution, education, age, and epilepsy duration.

Conclusions:

  • Aggression in epilepsy is influenced by a complex interplay of clinical and sociodemographic factors.
  • Intellectual functioning, psychiatric comorbidities, and disability are strongly linked to aggressive behavior.
  • Further research is warranted to elucidate the underlying mechanisms connecting epilepsy and aggression.