Effects of a Cognitive Training Program With Game Elements Among ADHD

Not Applicable

• Conditions: ADHD
• Interventions: Other: Cognitive training

• Registration Number: NCT03799029
• Lead Sponsor: University of Fribourg

Brief Summary

This study examines the impact of cognitive training among participants with ADHD in Switzerland

Detailed Description

The main aim of the experimental study is to investigate cognitive functioning, behavioral and neural levels in ADHD, both before and after cognitive training where there has been the addition of motivation elements. Near and far transfers effects of this new program are evaluated. For far transfers, ambulatory assessment is used to improve ecological validity. Neural activity has rarely been examined in cognitive training with ADHD participants, and that is why this study also includes FMRI measures. Long-term effects, defined as three and six months following the completion of cognitive training, are also investigated. This study focuses on children, adolescents and adults with ADHD. Indeed, cognitive training effects have been rarely studied over the lifespan.

Study Timeline

• Study First Submitted: 2018-05-28
• Status Verified: 2019-01
• Study First Submitted QC: 2019-01-07
• Last Update Submitted: 2019-01-07
• Study First Posted: 2019-01-10
• Last Update Posted: 2019-01-10
• Study Start: 2019-02-20
• Primary Completion: 2021-06-01
• Study Completion: 2023-12-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 240

Inclusion Criteria

Participants fulfilling all of the following inclusion criteria are eligible for the study for the patients'group:

1. Age between 6 and 65 years' old
2. ADHD diagnostic by a specialist
3. IQ-score higher than 80 for adult according to (WAIS-IV; Wechsler, 2008) and for children and adolescents according to (WISC-IV; Wechsler, 2003)
4. Treatment with or without medication for ADHD
5. Computer and Internet connexion at home
6. Informed consent from participants and the legal guardian of the minors (under 14 years old) involved - as documented by signature (Appendix Informed Consent Form).

Participants fulfilling all of the following inclusion criteria are eligible for the study for the control group of healthy participants:

1. Age between 6 and 65 years' old
2. No ADHD diagnostic by a specialist
3. IQ-score higher than 80 for adult according to (WAIS-IV; Wechsler, 2008) and for children and adolescents according to (WISC-IV; Wechsler, 2003)
4. No medication treatment for ADHD
5. Informed consent from participants and the legal guardian of the minors involved - as documented by signature (Appendix Informed Consent Form).

Exclusion Criteria

• Exclusion criteria

The exclusion criteria for the participants in the patient's group are:

1. Age younger than 6 and older than 65 years' old
2. No diagnosis of ADHD
3. IQ-score lower than 80 points according to (WAIS-IV; Wechsler, 2008) and for children and adolescents according to (WISC-IV; Wechsler, 2003)
4. No computer and Internet access at home
5. No written consent from participants and from the legal guardians of minors involved as less than 14 years old.

(7) FMRI exclusion: claustrophobia, Pregnancy known or suspected,metallic implants in their bodies (e.g: pacemakers, aneurism clips, metal Prosthetic, cochlear implant) (8) In case of suicidal risk, the participant is encouraged to consult the medical staff (9) Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant (10) Participation in another study on cognitive training (11) Previous enrolment into the current study (12) Enrolment of the investigator, his/her family members, employees and other dependent persons

The exclusion criteria for the participants in the control group of healthy participants are:

1. Age younger than 6 and older than 65 years' old
2. Diagnosis of ADHD or other mental disorders
3. IQ-score lower than 80 points according to (WAIS-IV; Wechsler, 2008) and for children and adolescents according to (WISC-IV; Wechsler, 2003)
4. No written consent from participants and from the legal guardians of minors involved (for participants under 14 years old)
5. FMRI exclusion: claustrophobia, Pregnancy known or suspected, metallic implants in their bodies (e.g: pacemakers, aneurism clips, metal Prosthetic, cochlear implant)
6. In case of suicidal risk, the participant is encouraged to consult the medical staff.
7. Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant
8. Previous enrolment into the current study
9. Enrolment of the investigator, his/her family members, employees and other dependent persons

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
active control group low-intensity	Cognitive training	Low intensity version of the same cognitive training program Exercice are realized at home using a computer 25 sessions of 30-45 minutes are realized five days per week during 5 weeks
experimental training group cognitive training	Cognitive training	a multifactorial cognitive program that tackles working memory, attention, inhibition, planification and reasoning Exercice are realized at home using a computer 25 sessions of 30-45 minutes are realized five days per week during 5 weeks

Primary Outcome Measures

Name	Time	Method
ADHD symptoms for children	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The Conners Scale, 3rd edition higher values represent a worse outcome Questionnaire is rated by the legal guardian. This questionnaire assesses ADHD symptoms.Score are summed. Score range 0 to 100.
ADHD symptoms for adults	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The Conners' Adult ADHD Rating Scales (CAARS) higher values represent worse outcome The Conners' Adult ADHD Rating Scales (CAARS) is used to assess ADHD symptoms among adults (Conners et al., 1999) depending on the DSM-IV-TR (APA, 2000). This short version includes 26 items and 4 possible ratings from from 0 (not at all) to 3 (very much). This scale comprises four factors: (1) inattention, memory problems, (2) hyperactivity, restlessness, (3) impulsivity, emotional lability, (4) problems with self-concept and one ADHD index. score are summed. Range 0 to 100.

Secondary Outcome Measures

Name	Time	Method
executive function	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The Behavior Rating Inventory of Executive Function higher values represent a worse outcome Score are summed. This questionnaire measures executive functionning in everyday life. The BRIEF includes 75 questions and eight sub-domains: Inhibit Shift, Emotional Control, Initiate, Working Memory, Plan/Organize, Organization of Materials and Monitor. Score range 0 to 100
Memory	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4 training 4. Six months after cognitive training	WAIS-IV higher values represent a better outcome .the Weschler adult intelligent scale to (WAIS-IV; Wechsler, 2008). Score are standardized from 0 to 20 for subtest and summed from 0 to 150.; The Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV, Wechsler, 2003) and the Weschler adult intelligent scale measure verbal memory. Score are standardized from 0 to 20 for subtest and summed from 0 to 150.
Impulsivity	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The Impulsivity Behavior Scale (UPPS) higher values represent a worse outcome. score are summed short version contains 20 items measuring the following five dimensions of impulsivity: positive urgency, negative urgency, lack of perseverance, lack of premeditation and sensation seeking. This scale is based on Cyder and Smith (2007) and Whiteside and Lynam (2001) theory of impulsivity. Range 0 to 50.
Reward	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The sensitivity to Punishment and Sensitivity to Reward questionnaire for Children, adolescents (SPSRQ-C) (Colder and O'Connor 2004) and adults (SPSRQ, Torrubia, Ávila, Moltó, \& Caseras, 2001) are used. These questionnaires are based on Gray's reinforcement sensitivity theory of personality (1981, 1987, 2000). Reward task higher values represent a better outcome. Score range 0 to 110.
Neural activity	Change between two time points from baseline T1 to six week later T2 after cognitive training is assessed. Follow up is assessed at 3 months T3 and 6 months T4	The fMRI measure include. Resting-state functional MRI.Task-free. Subjects are instructed to just lie quietly in the scanner and to think of nothing in particular and let their mind wander.- binding potential (ΔBP) is measured.

Trial Locations

Locations (1)

Dentz Amélie; 🇨🇦 Montréal, Quebec, Canada