Attention Deficit Hyperactivity Disorder
Conditions
Keywords
ADHD, neurofeedback, computerized cognitive training, school
Brief summary
Attention deficit/hyperactivity disorder (ADHD) is among the most common childhood-onset psychiatric disorders, with a negative and long-lasting impact on academic achievement, social integration and quality of life. In recent years, the efficacy of non-pharmacological treatments for ADHD, such as neurofeedback training (NF) and computerized cognitive training (CCT), has been at the centre of research. Although an increasing number of well-designed studies have shown that both methods may improve ADHD core symptoms according to parents' ratings, the underlying mechanisms are still a matter of debate. Teachers often report smaller improvements, if any. This has been explained by their lesser involvement in the training. It remains questionable, however, whether other factors may also account for this effect and whether methods other than placebo control may be applied in order to demonstrate the specificity and efficacy of NF and CCT. The main purpose of this project is to demonstrate and compare the efficacy of two different computer-based treatment methods for children and adolescents with ADHD, namely NF and CCT, and to examine the impact of different treatment settings, with half of the participants being trained in a clinical setting and the other half at school. The investigators want to show that is feasible to implement NF and CCT in a school setting and that both methods, conducted either at school or in a clinical setting, may lead to significant improvements of ADHD symptoms as well as to specific and differential effects. Besides the differential impact of the settings on informant ratings, the investigators will evaluate the effects of the training methods on neuropsychological and electrophysiological outcome. Classroom behavior of the children before and after the training will be evaluated by trained observers not informed on treatment assignments and settings.
Interventions
BEHAVIORALNeurofeedback training
In neurofeedback training, EEG-activity is visualized and fed back to the participant online on a computer screen. Successful regulation is rewarded by bonus points. The aim is to gain control over one's brain activity and to be able to switch to or to maintain a more wakeful, alert or focussed state.
BEHAVIORALComputerized cognitive training
In computerized cognitive training, impaired neuropsychological functions, such as inhibition, working memory, distractibility, are directly trained by adaptive computerized software programs. We use training programs from a scientifically based training system for patients presenting problems with sustained, focussed or selective attention, working memory, inhibition, processing speed. Good performance / improvements are rewarded with bonus points.
Sponsors
Swiss National Science Foundation
University of Zurich
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Caregiver)
Eligibility
Sex/Gender
ALL
Age
8 Years to 16 Years
Healthy volunteers
No
Inclusion criteria
* ADHD (DSM IV)
Exclusion criteria
* Estimated IQ \< 80 * Known neurological impairment / brain injury * Severe comorbid conditions (e.g. CD, ODD, autism)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| ADHD behavioral symptoms | Outcome assessment 6 months after baseline | Primary outcome measures will be assessed by clinical scales (Conners 3), rated by parents and teachers. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Neuropsychological performance, EEG parameters | Outcome assessment 6 months after baseline | Computerized test battery for attention and working memory; Q-EEG, event related potentials |
Other
| Measure | Time frame | Description |
|---|---|---|
| Classroom behavior | Observation 1 approx. 2 weeks before the start of the training, observation 2 (endpoint) approx. 2 weeks after the end of the training | Standardized classroom observations of the participating children are conducted by a trained observer blind to whether the participant has already been trained or not and to which of the two training methods he has been allocated to. With regard to this measure, it is a single blind study with blinding of the assessor. |
Countries
Switzerland
Outcome results
None listed