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Deficits in oculomotor performance in pediatric epilepsy
Miya R Asato1, Natalie Nawarawong, Bruce Hermann
1Department of Pediatrics, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. asatomr@upmc.edu
Epilepsia
|November 20, 2010
Summary
Pediatric epilepsy patients exhibit impaired processing speed and response inhibition, but not working memory. These cognitive deficits may stem from early developmental brain compromises due to seizures.
Area of Science:
- Neuroscience
- Developmental Psychology
- Clinical Neurology
Background:
- Epilepsy is associated with cognitive deficits.
- Executive functions, including processing speed and response inhibition, are crucial for daily functioning.
Purpose of the Study:
- To investigate cognitive functions supporting executive function in pediatric epilepsy patients.
- Specifically examined speed of processing, response inhibition, and spatial working memory.
Main Methods:
- 44 pairs of pediatric epilepsy patients and matched controls underwent cognitive oculomotor tasks, neuropsychological testing, and psychiatric assessment.
- Patients had no known brain pathology.
Main Results:
- Epilepsy patients demonstrated slower reaction times and impaired response inhibition.
- Saccade accuracy, visual memory, and sequential processing were also affected.
- Comorbid psychopathology did not worsen cognitive outcomes.
Conclusions:
- Pediatric epilepsy is linked to specific vulnerabilities in processing speed and response inhibition, not working memory.
- These deficits may explain known neuropsychological limitations and arise from seizure-related developmental compromises.
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