Improvement of brain functional connectivity in autism spectrum disorder: an exploratory study on the potential use of virtual reality.

Patients with Autism Spectrum Disorder (ASD) need to be provided with behavioral, psychological, educational, or skill-building interventions as early as possible. Cognitive Behavior Therapy has proven useful to manage such problems. There is also growing evidence on the usefulness of Virtual Reality Therapy (VRT) in treating various functional deficits in ASD. This exploratory study is aimed at assessing the changes in cognitive functions in children with ASD, and the putative subtending neurophysiological mechanisms, following the provision of rehab training using an innovative VRT system. Twenty patients with ASD, aged 6-15 years, were provided with 24 sessions of VRT by using the pediatric module of the BTS NIRVANA System. Neuropsychological and EEG evaluations were carried out before and at the end of the training. After VRT, all patients showed a significant improvement in their cognitive-behavioral problems concerning attention processes, visuospatial cognition, and anxiety. These findings were paralleled by an evident reshape of frontoparietal connectivity in the alpha and theta frequency range. Our study suggests that VRT could be a useful and promising tool to improve ASD neurorehabilitation outcomes. This improvement is likely to occur through changes in frontoparietal network connectivity following VRT.

Innovative use of virtual reality in autism spectrum disorder: A case-study.

Autism Spectrum Disorders (ASDs) are developmental disorders affecting communication and behavior. ASD incidence in the world population is about 1%, with a 4:1 ratio between males and females. In clinical practice, ASDs have been usually treated with cognitive-behavioral approaches, involving a face-to-face interaction with the therapist. Over the last years, virtual reality (VR) has played an important role in neurorehabilitation, even for ASD cognitive treatment. A 16-year-old boy with severe ASD and his caregiver were enrolled in the study. Two different cognitive trainings were administered; first, the boy was submitted to one-month cognitive behavioral therapy (CBT); then, after one month of rest, a combined approach using VR (by means of the BTS-Nirvana System) and CBT was applied. Only the combined approach provided an improvement in attention processes and spatial cognition skills, with a significant reduction of ideomotor stereotypes. According to this experience, the use of VR in addition to CBT could be a useful and promising tool to improve cognitive function in individuals severely affected by ASD.