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Related Concept Videos

Epilepsy and Seizures: Overview01:24

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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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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.
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Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
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Processing speed in temporal lobe epilepsy. A scoping review.

Rosalba Ferrario1, Anna Rita Giovagnoli1

  • 1Department of Diagnostics and Technology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133 Milano, Italy.

Epilepsy & Behavior : E&B
|March 24, 2023
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Summary

Processing speed (PS) is often impaired in temporal lobe epilepsy (TLE) but lacks consistent measurement. This review highlights the need for standardized terminology and assessment methods for PS in TLE research and clinical practice.

Keywords:
Information processing speedMental speedProcessing speedPsychomotor speedSlowingTemporal lobe epilepsy

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Area of Science:

  • Neuroscience
  • Epilepsy Research
  • Cognitive Psychology

Background:

  • Impaired processing speed (PS) is a recognized issue in temporal lobe epilepsy (TLE).
  • PS is often considered a nonspecific clinical feature and is not consistently measured in TLE.
  • This lack of standardized measurement presents lexical and methodological challenges in TLE research.

Purpose of the Study:

  • To evaluate the existing terminology used for processing speed in TLE.
  • To assess the various methods employed for measuring processing speed in TLE patients.
  • To identify inconsistencies and propose standardization for PS assessment in TLE.

Main Methods:

  • Conducted a scoping review following Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines.
  • Searched major databases (PubMed, PsycINFO, EBSCO, Google Scholar) using keywords related to TLE and processing speed.
  • Analyzed seven peer-reviewed articles published before December 2022, focusing on original research with neuropsychological measures.

Main Results:

  • Commonly used terms for PS include 'processing speed,' 'psychomotor speed,' and 'information processing speed.'
  • Assessment methods varied, encompassing both non-computerized (e.g., WAIS-III subtests, Trail Making Test) and computerized tests.
  • Processing speed impairment in TLE was sometimes associated with white and gray matter damage.

Conclusions:

  • Clinical research on PS in TLE is inconsistent, utilizing diverse terminology and assessment tools for similar concepts.
  • There is a notable discrepancy between the clinical significance of PS and its standardized evaluation in TLE.
  • Further research is required to establish shared terminology and assessment tools across clinical centers for PS in TLE.