Motor-free visual perception and visuomotor integration in pediatric arterial ischemic stroke
Sophie Mandl1, Johanna Baldassari1, Estella Ringelmann1
1Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, Vienna, Austria.
Summary
Pediatric stroke patients
Area of Science:
- Neuroscience
- Pediatric Neurology
- Cognitive Psychology
Background:
- Pediatric arterial ischemic stroke (AIS) significantly impacts visuospatial processing.
- Visuospatial deficits in pediatric stroke can be confounded by motor impairments.
- Understanding the independence of visual perception from motor skills is crucial for targeted interventions.
Purpose of the Study:
- To investigate the relationship between motor-free visual perception and visuomotor integration in pediatric stroke patients.
- To explore how demographic and clinical factors influence visuospatial skills post-stroke.
- To determine if visuospatial deficits are directly linked to motor impairments or lesion characteristics.
Main Methods:
- Cross-sectional study involving 16 pediatric stroke patients (mean age 9.5 years).
- Utilized the Rey-Osterrieth Complex Figure (ROCF) and Developmental Test of Visual Perception-3 (DTVP-3) to assess visuospatial abilities.
- Correlational analyses examined associations between cognitive tests, age at stroke, socioeconomic status, and lesion severity (modASPECTS).
Main Results:
- Motor-free visual perception (DTVP-3) strongly correlated with ROCF copy and delayed recall.
- Visuomotor integration (DTVP-3) did not correlate with ROCF performance, indicating independence.
- Larger initial lesion size (modASPECTS) was significantly associated with poorer global visual perception, visuomotor integration, and motor-free visual perception.
Conclusions:
- Visuospatial processing deficits in pediatric stroke are independent of visuomotor integration abilities.
- Initial lesion size is a significant predictor of visuospatial skill deficits in pediatric stroke survivors.
- Findings aid in understanding the cognitive profile after pediatric stroke and identifying clinical predictors for visuospatial outcomes.
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