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Effort-Related Decision-Making in ADHD.

Suzanne H Mitchell1,2,3, Deborah Sevigny-Resetco1

  • 1Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239-3098, USA.

Journal of Psychiatry and Brain Science
|February 1, 2021
PubMed
Summary
This summary is machine-generated.

Attention-Deficit/Hyperactivity Disorder (ADHD) may involve greater aversion to cognitive effort. This study investigates effort discounting and subjective effort perception in individuals with ADHD compared to controls.

Keywords:
ADHDattentioncognitive effortdecision-makingeffort discountingexecutive functionmotivationworking memory

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Attention-Deficit/Hyperactivity Disorder (ADHD) diagnosis relies on behavioral symptoms, lacking clear neurobiological underpinnings.
  • Current understanding of ADHD does not fully capture cognitive effort aversion or reward-effort interactions.
  • The NIMH Research Domain Criteria (RDoC) approach highlights the need to examine cognitive effort maintenance in ADHD.

Purpose of the Study:

  • To investigate effort discounting, the devaluation of rewards requiring greater cognitive effort, in individuals with ADHD.
  • To compare subjective effort perception between ADHD-diagnosed youth and healthy controls across varying cognitive loads.
  • To explore the relationship between effort discounting, related traits, decision-making biomarkers, and cognitive measures in ADHD.

Main Methods:

  • Recruited well-defined samples of individuals diagnosed with ADHD and healthy controls.
  • Assessed effort discounting by analyzing preferences between low-effort/low-reward and high-effort/high-reward options.
  • Utilized tasks measuring subjective effort perception, eye movements, pupil dilation, and cognitive performance.

Main Results:

  • ADHD is associated with steeper discounting of larger, more effortful rewards, indicating a stronger aversion to cognitive effort.
  • Individuals with ADHD exhibit altered subjective perceptions of cognitive effort compared to healthy controls.
  • Effort discounting, trait measures, and biomarkers show complex interrelationships, providing insights into ADHD's neurobiological mechanisms.

Conclusions:

  • Findings suggest that aversion to cognitive effort is a key characteristic differentiating ADHD from healthy controls.
  • This research provides a foundation for developing more computationally-informed diagnostic criteria for ADHD.
  • Understanding effort-based decision-making biases can inform future therapeutic interventions for ADHD.