Functional neuronal networks reveal emotional processing differences in children with ADHD.
Sheida Ansari Nasab1, Shirin Panahi1, Farnaz Ghassemi1
1Department of Biomedical Engineering, Amirkabir University of Technology, No. 350, Hafez Ave, Valiasr Square, Tehran, 159163-4311 Iran.
Cognitive Neurodynamics
|February 7, 2022
Summary
Children with Attention Deficit Hyperactivity Disorder (ADHD) exhibit altered brain network connectivity. Our study reveals increased functional connectivity and reduced information transmission efficiency in the frontal and occipital lobes of boys with ADHD.
Area of Science:
- Neuroscience
- Network Science
- Developmental Disorders
Background:
- Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder impacting emotional processing and social interaction in children.
- Difficulties in processing facial emotions are a key challenge for children with ADHD.
Purpose of the Study:
- To analyze neuronal network differences in children with ADHD using EEG data.
- To investigate phase synchronization and functional connectivity in response to emotional stimuli.
Main Methods:
- Phase-locking value (PLV) method applied to EEG data from 22 healthy boys and 22 boys with ADHD.
- Neuronal networks constructed based on the gamma sub-band, sensitive to emotional stimuli.
- Analysis of phase synchronization, functional connectivity, and shortest path lengths in frontal and occipital lobes.
Main Results:
- Significantly higher functional connectivity (P < 0.01) in the frontal and occipital lobes of the ADHD group compared to controls.
- Increased phase synchronization in these lobes suggests impaired emotional processing in ADHD.
- Significantly higher shortest path lengths (P < 0.01) in ADHD, indicating less efficient information transmission and segregation.
Conclusions:
- ADHD is associated with altered brain network dynamics, particularly in regions crucial for visual and emotional processing.
- Network science approaches offer valuable insights into the neurobiological underpinnings of ADHD.
- Findings highlight potential targets for understanding and addressing emotional processing deficits in ADHD.
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