View clinical trials related to Autistic Disorders Spectrum.
Filter by:To understand the changes in the resting electroencephalogram (EEG) brain networks of children and adolescents with autistic spectrum disorder (ASD) induced by transcranial direct current stimulation (tDCS), we asked two questions. First: how can tDCS modulate the expression of neural network dynamics? Second: how can tDCS modulate functional connections at specific frequencies? We hypothesized that the tDCS mechanism results in increased cortical frequencies in the areas under the anode, which may reflect an increase in synaptic connectivity, and that this tDCS-related increase changes connection profiles at specific frequencies important for ASD, indicating improvement in symptoms. To verify this improvement, the researchers used the Autism Treatment Evaluation Checklist (ATEC) after an intervention, comparing baseline scores with post-treatment scores.
Biofeedback is a process that allows people to obtain information about their internal physiological reactions and thereby learn to control them. Researchers studying the brain and nervous system have found that regulating heart rate can help us to relax. Controlling heart rate using biofeedback has been shown in some studies to help people manage symptoms of stress such as anxiety and depression. This research will explore whether biofeedback can help people with autism or Asperger syndrome reduce reported symptoms of stress. Participants with a diagnosis of high functioning autism will be invited to use a biofeedback device that helps them to regulate their heart rate. People who enrol for the study will be randomly assigned different biofeedback devices. Training and support in the use of the device will be provided to participants. Assessment will involve obtaining questionnaire reports from participants and their carers about participant levels of anxiety, depression and sensory symptoms, demographics and lifestyle. These assessments will be carried out at the beginning, in the middle and at the end of the study to see if there are any differences in how each participant's heart rate changes, whether there are any changes in participant's reported symptoms. Participants will be asked to give daily reports on their progress to monitor stress levels, usability of device and dropout rates. The overall aim is to determine whether biofeedback is a way of helping people with autism to reduce symptoms of stress.
Background: Transcranial Direct Current Stimulation (tDCS) is a form of non-invasive brain stimulation that has aroused increased interests in the past decade. Not only that it is transient with little side-effects, and can be well-tolerated by children, it is also affordable and readily accessible, making it an appealing treatment option for autism spectrum disorder (ASD). Objective: (1) To assess the therapeutic effects of tDCS when combined with cognitive training for 10 consecutive weekdays on improving cognitive processing in adolescents with ASD, relative to control group receiving sham-stimulation, and (2) to evaluate the associated neural mechanisms underlying the treatment effect of tDCS on adolescents with ASD. Methods: 105 adolescents with ASD will be randomly assigned to active- (n=35), sham- (n=35) tDCS, or no-treatment control (n=35) groups. Twenty minute sessions of 1 mA cathodal stimulation to the left dorsolateral prefrontal cortex (DLPRC) in conjunction with cognitive training exercise will be provided on 10 consecutive weekdays. EEGs, functional near-infrared spectroscopy, and neuropsychological tests will be administered before, 1 day and 6 months after the series of tDCS sessions. Hypothesis: We hypothesized that cathodal (inhibitory) tDCS over the left DLPRC will induce (1) stimulation-linked facilitation of learning and enhanced processing speed and resultant improvement of cognitive functioning, in executive function, relative to the sham-tDCS and the wait-list controls, (2) active-tDCS, but not sham-tDCS and wait-list controls, will modulate the intra- and inter-hemispheric neural connectivity, indexed by altered level EEG theta coherence and aberrant fNIRS haemodynamic measures, across brain areas implicated in executive functioning.
This trial will test the efficacy of robot-enhanced interventions for developing social skills in children with Autism Spectrum Disorders (ASD). The study will compare, in an equivalence design, an innovative intervention delivered by a semi-autonomous robotic agent with standard behavioral intervention. The target group is children between 3 and 6 years old which will be randomly allocated to one of the two treatments. Each treatment will be delivered over 8 bi-weekly sessions of 45 minutes each.