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The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients

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Constraints on information processing capacity in adults with ADHD.

Walter Roberts¹, Richard Milich, Mark T Fillmore

¹Department of Psychology, 115 Kastle Hall, University of Kentucky, Lexington, KY 40506-0044, USA.

Neuropsychology

|October 31, 2012

Summary

Adults with attention-deficit hyperactivity disorder (ADHD) have a specific reduction in response selection capacity, not working memory. This finding highlights a key cognitive difference in ADHD.

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Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)

Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)

Published on: March 12, 2020

Area of Science:

Cognitive Neuroscience
Neuropsychology

Background:

Cognitive science identifies processing capacity bottlenecks in the human brain.
These bottlenecks limit environmental information processing and action.
Attention-deficit hyperactivity disorder (ADHD) may involve deficits in these cognitive capacities.

Purpose of the Study:

To investigate if adults with ADHD exhibit diminished working memory and response selection capacities.
To explore the specific cognitive processing deficits associated with ADHD.

Main Methods:

Assessed 38 adults with ADHD and 33 controls using two processing capacity measures.
Utilized a dual choice-response task (psychological refractory period [PRP] task) for response selection capacity.
Employed an n-back task to measure working memory capacity, assessing performance disruption under increasing cognitive load.

Main Results:

Both groups showed performance decline with increased cognitive load.
The ADHD group exhibited a more pronounced performance decline on the PRP task, indicating reduced response selection capacity.
No significant group difference was observed in working memory capacity on the n-back task.

Conclusions:

Adults with ADHD demonstrate a specific reduction in response selection capacity.
Evidence suggests a dissociation between working memory and response selection capacities in ADHD.
Findings may inform the understanding of cognitive dysfunction in adult ADHD.