Abnormal Structure and Function of Parietal Lobe in Individuals With Attention Deficit Hyperactivity Disorder (ADHD):
Vahid Nejati1, Elnaz Ghayerin2
1Department of Psychology, School of Education and Psychology, Shahid Beheshti University, Tehran, Iran.
Basic and Clinical Neuroscience
|September 4, 2024
Summary
Attention deficit hyperactivity disorder (ADHD) is linked to parietal lobe abnormalities. This review found altered structure and function in the parietal lobe, impacting cognitive abilities in individuals with ADHD.
Area of Science:
- Neuroscience
- Psychiatry
Background:
- Attention deficit hyperactivity disorder (ADHD) is associated with reported abnormalities in brain structure and function.
- The parietal lobe's role in cognitive processes makes it a key area of interest for ADHD research.
Purpose of the Study:
- To systematically review and synthesize findings on parietal lobe structure and function alterations in individuals with ADHD.
Main Methods:
- A systematic literature search was conducted using PRISMA guidelines.
- Included studies were published between January 2010 and May 2021.
- Twenty empirical experiments investigating the parietal lobe in ADHD were identified.
Main Results:
- Functional MRI studies indicated reduced activity and connectivity.
- Structural MRI revealed decreased gray matter and atrophy.
- Electroencephalography studies showed reduced parietal lobe connectivity.
- Brain stimulation techniques targeting the parietal lobe improved attention, executive functions, and working memory.
Conclusions:
- The parietal cortex exhibits functional and structural alterations in ADHD, causally linked to cognitive impairments.
- Evidence consistently points to abnormal parietal lobe structure, function, or connectivity in ADHD.
- Parietal lobe stimulation demonstrates potential for improving cognitive deficits in ADHD.
Keywords:
Attention deficit hyperactivity disorder (ADHD)Executive functionsParietal lobeSystematic reviewMore Related Videos
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