Brain Activity Associated With Inhibition of Action in Attention-deficit

Status Recruiting

Clinical Trial Summary

Inhibitory control allows individuals to suppress unwanted actions and to resist irrelevant stimuli. It is thought to be a core deficit in Attention-deficit/hyperactivity disorder (ADHD). The present study aims at evaluating this deficit in adults with ADHD. Executive and inhibitory capacities, as well as the neural mechanisms underlying inhibitory control, will be assessed in adults with ADHD and two control groups of participants.

Clinical Trial Description

ADHD is a psychiatric disorder characterized by symptoms of inattention, hyperactivity, and impulsivity (DSM-V, 2013). An impairment of inhibitory control has been suggested as the primary deficit in children with ADHD, which is thought to cause secondary impairments in executive functioning. A few studies investigated executive capacities in adults with ADHD. Specifically, an impairment in action inhibition has been reported in ADHD participants. Moreover, inhibition of action is often associated with distinctive electroencephalographic (EEG) correlates. The present study aim at combining both novel inhibitory control measurement techniques and EEG analysis in temporal and frequency domains to assess the sensitivity and the specificity of an inhibitory deficit in adults with ADHD. This is part of an improvement in the procedures for diagnosing ADHD syndrome and its functional evaluation. The study will analyze the EEG activity associated with two stop-signal tasks requiring inhibitory capacities. A set of other cognitive skills will also be evaluated during a neuropsychological assessment. The results of ADHD patients will be compared with those of a control group (healthy volunteers) to assess the sensitivity of an inhibition deficit to the disorder. These same results will also be compared with those of a second control group (patients with a negative diagnosis of ADHD) to assess the specificity of the inhibitory deficit. This experimental strategy results in the involvement of three groups of participants (ADHD patients and two control groups) in three visits (neuropsychological assessment and two EEG sessions). ;

Study Design

Related Conditions & MeSH terms

Attention Deficit
Attention Deficit Disorder with Hyperactivity
Hyperactivity Disorder
Hyperkinesis

Clinical Trial Details

NCT number	NCT04768556
Study type	Interventional
Source	University Hospital, Toulouse
Contact	Jeremie PARIENTE, MD PHD
Phone	05.61.77.95.02
Email	pariente.j@chu-toulouse.fr
Status	Recruiting
Phase	N/A
Start date	March 17, 2021
Completion date	December 2024

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Brain Activity Associated With Inhibition of Action in Attention-deficit — INHIB'MOV

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms