Related Experiment Videos
[Contingent negative variation (CNV) in children with hyperkinetic syndrome--an experimental study using the
K Hennighausen1, G Schulte-Körne, A Warnke
1Universitätsklinikum Freiburg, Abteilung für Psychiatrie und Psychotherapie im Kindes- und Jugendalter, Albert-Ludwigs-Universität.
Zeitschrift Fur Kinder- Und Jugendpsychiatrie Und Psychotherapie
|December 5, 2000
Summary
Children with attention deficit/hyperactivity disorder (ADD) show distinct event-related potential (ERP) patterns during selective attention tasks. These findings suggest impaired frontal inhibitory processes in ADD.
Area of Science:
- Neuroscience
- Developmental Psychology
- Clinical Psychology
Context:
- Attention deficit/hyperactivity disorder (ADD) is a common neurodevelopmental disorder.
- Selective attention is a critical cognitive function often impaired in ADD.
- Event-related potentials (ERPs) offer a neurophysiological window into cognitive processes.
Purpose:
- To evaluate event-related potentials (ERPs) associated with selective attention in children with ADD.
- To compare ERPs in children with ADD to those in typically developing controls.
- To investigate the neural underpinnings of attentional deficits in ADD.
Summary:
- This study examined selective attention using ERPs in 18 boys with ADD (aged 6-12) and 21 controls.
- Two contingent negative variation (CNV) components (CNV-1 and CNV-2) were analyzed.
- While behavioral performance was similar, significant group differences emerged in CNV topography, with ADD children showing attenuated frontal CNV-1 and increased occipital CNV amplitudes.
Impact:
- Findings support the hypothesis of impaired frontal inhibitory processes in children with ADD.
- Suggests specific neurophysiological markers for attention deficits in ADD.
- Provides insights for potential targeted interventions for ADD.