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Assessing attentional systems in children with Attention Deficit Hyperactivity Disorder
Maria Casagrande1, Diana Martella, Maria Cleonice Ruggiero
1Department of Psychology, Sapienza University of Rome, Rome, Italy. maria.casagrande@uniroma1.it
Insights
Children with Attention Deficit Hyperactivity Disorder (ADHD) show slower attention and executive function deficits. Auditory warnings improved performance, suggesting low arousal, not an independent disorder, may underlie ADHD executive dysfunction.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by inattention, hyperactivity, and impulsivity.
- Attentional networks, including alerting, orienting, and executive control, are crucial for cognitive function.
- Understanding attentional network efficiency in ADHD is vital for developing targeted interventions.
Purpose of the Study:
- To investigate the efficiency and interplay of attentional networks in children with ADHD.
- To examine the impact of reinforcement and auditory warnings on attentional network performance.
- To explore the underlying mechanisms of executive function deficits in ADHD.
Main Methods:
- Utilized revised Attentional Network Test (ANT) versions in 36 drug-naïve children (18 ADHD, 18 typically developing).
- Assessed alerting, orienting, and executive attention systems under feedback and no-feedback conditions.
- Administered auditory warnings to modulate alertness levels.
Main Results:
- Children with ADHD exhibited slower performance and deficits in attention disengagement and executive functioning compared to controls.
- Auditory warnings enhanced executive functioning in children with ADHD, suggesting improved alertness.
- Reinforcement presence/absence modulated attentional network performance in both groups.
Conclusions:
- Executive system deficits in ADHD may stem from low arousal levels rather than being an independent disorder.
- Attentional network efficiency in ADHD is sensitive to arousal and reinforcement.
- Findings highlight the importance of arousal modulation for cognitive function in ADHD.
Abstract:
The aim of this study was to evaluate the efficiency and interactions of attentional systems in children with Attention Deficit Hyperactivity Disorder (ADHD) by considering the effects of reinforcement and auditory warning on each component of attention. Thirty-six drug-naïve children (18 children with ADHD/18 typically developing children) performed two revised versions of the Attentional Network Test, which assess the efficiency of alerting, orienting, and executive systems. In feedback trials, children received feedback about their accuracy, whereas in the no-feedback trials, feedback was not given. In both conditions, children with ADHD performed more slowly than did typically developing children. They also showed impairments in the ability to disengage attention and in executive functioning, which improved when alertness was increased by administering the auditory warning. The performance of the attentional networks appeared to be modulated by the absence or the presence of reinforcement. We suggest that the observed executive system deficit in children with ADHD could depend on their low level of arousal rather than being an independent disorder.
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