BackgroundChildren with attention-deficit/hyperactivity disorder (ADHD) suffer from attention deficits, motor hyperactivity, and impulsive behaviour. These impairments are experienced at home, at school, and with friends. Functional imaging studies show that ADHD behaviour and impairments in executive functions (EFs) are mirrored by aberrant neurophysiological functioning. Moreover, several studies show that ADHD behaviour, impairments in EFs, and a lack of self-control contribute to poor school performance. Non-pharmacological interventions such as neurofeedback training (NFT), for instance, aim at improving neurophysiological and neuropsychological functioning as well as behaviour. Consequently, NFT is expected to improve school performance, EFs, and self-control in children with ADHD. Generalization of acquired self-regulation skills from laboratory to real life is crucial for a transfer to everyday situations and is hypothesized to be facilitated via training using virtual reality (VR) environments. Consequently, experiencing NFT in VR is expected to yield greater effects than training in two dimensions (2D).Methods/designNinety children with a clinical diagnosis of ADHD will be included in the study. Participants may be medicated or unmedicated. After random assignation to one of three conditions, all participants receive 15 training sessions of either near-infrared spectroscopy (NIRS)-based NFT in VR, NIRS-based NFT in 2D, or electromyogram-based biofeedback training in VR. ADHD symptoms, self-control, EF, health-related quality of life, school performance, and motor activity measured via parent, teacher, and child reports or objectively will be assessed before and after the intervention and at a 6 months follow-up. Furthermore, we are interested in parents’ expectations about the training’s effects.DiscussionThis is, to our knowledge, the first study investigating the efficacy of NFT for children with ADHD in a VR compared to a 2D environment. Furthermore, this study will contribute to the discussion about the efficacy and specific and unspecific effects of NFTs in children with ADHD. In addition to commonly assessed variables such as ADHD symptoms, NIRS and behavioural data obtained in EF measures, health-related quality of life, and parents’ expectations about the intervention’s effects, this study will investigate the effects on self-control, school performance, and motor activity.Trial registrationClinicalTrials.gov, NCT02572180. Registered on 19 November 2015.Electronic supplementary materialThe online version of this article (doi:10.1186/s13063-016-1769-3) contains supplementary material, which is available to authorized users.

Based on neurofeedback (NF) training as a neurocognitive treatment in attention-deficit/hyperactivity disorder (ADHD), we designed a randomized, controlled functional near-infrared spectroscopy (fNIRS) NF intervention embedded in an immersive virtual reality classroom in which participants learned to control overhead lighting with their dorsolateral prefrontal brain activation. We tested the efficacy of the intervention on healthy adults displaying high impulsivity as a sub-clinical population sharing common features with ADHD. Twenty participants, 10 in an experimental and 10 in a shoulder muscle-based electromyography control group, underwent eight training sessions across 2 weeks. Training was bookended by a pre- and post-test including go/no-go, n-back, and stop-signal tasks (SST). Results indicated a significant reduction in commission errors on the no-go task with a simultaneous increase in prefrontal oxygenated hemoglobin concentration for the experimental group, but not for the control group. Furthermore, the ability of the subjects to gain control over the feedback parameter correlated strongly with the reduction in commission errors for the experimental, but not for the control group, indicating the potential importance of learning feedback control in moderating behavioral outcomes. In addition, participants of the fNIRS group showed a reduction in reaction time variability on the SST. Results indicate a clear effect of our NF intervention in reducing impulsive behavior possibly via a strengthening of frontal lobe functioning. Virtual reality additions to conventional NF may be one way to improve the ecological validity and symptom-relevance of the training situation, hence positively affecting transfer of acquired skills to real life.

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As a means to counter the SARS-CoV‑2 pandemic, schools were closed throughout Germany between mid-March and end of April 2020. Schooling was translocated to the students’ homes where students were supposed to work on learning tasks provided by their teachers. Students’ self-regulation and attributes of the learning tasks may be assumed to have played important roles when adapting to this novel schooling situation. They may be predicted to have influenced students’ daily self-regulation and hence the independence with which they worked on learning tasks. The present work investigated the role of students’ trait self-regulation as well as task difficulty and task enjoyment for students’ daily independence from their parents in learning during the homeschooling period. Data on children’s trait self-regulation were obtained through a baseline questionnaire filled in by the parents of 535 children (Mage = 9.69, SDage = 2.80). Parents additionally reported about the daily task difficulty, task enjoyment, and students’ learning independence through 21 consecutive daily online questionnaires. The results showed students’ trait self-regulation to be positively associated with their daily learning independence. Additionally, students’ daily learning independence was shown to be negatively associated with task difficulty and positively with task enjoyment. The findings are discussed with regard to students’ daily self-regulation during the homeschooling period. Finally, implications for teaching practice during the pandemic-related school closures are derived.

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As a means to counter the SARS-CoV-2 pandemic, schools were closed throughout Germany between mid-March and end of April 2020. Schooling was translocated to the students’ homes and students were supposed to work on learning tasks provided by their teachers. Students’ self-regulation and attributes of the learning tasks may be assumed to have played important roles when adapting to this novel schooling situation. They may be predicted to have influenced students’ daily self-regulation and hence the independence with which they worked on learning tasks. The present work therefore investigated the role of students' trait self-regulation as well as task difficulty and task enjoyment for students’ daily independence from their parents in learning during the homeschooling period. Data on children’s trait self-regulation were obtained through a baseline questionnaire filled in by the parents of 535 children (Mage = 9.69, SDage = 2.80). Parents additionally reported about the daily task difficulty, task enjoyment, and students’ learning independence through 21 consecutive daily online questionnaires. The results showed students’ trait self-regulation to be positively associated with their daily learning independence. Additionally, students’ daily learning independence was shown to be negatively associated with task difficulty and positively with task enjoyment. The findings are discussed with regard to students’ daily self-regulation during the homeschooling period.

The data that support the findings of this study are openly available in the Open Science Framework (OSF) at https://osf.io/p2ws5.