The purpose of this study is to explore whether a non-invasive form of ear stimulation called transcutaneous auricular vagus nerve stimulation (taVNS) can manage symptoms in patients with autism spectrum disorder (ASD). Additionally, this study also uses magnetic resonance imaging (MRI) to capture images of participants' brains and apply an image processing method called INSCAPE to track brain state changes during taVNS treatment in ASD. We will recruit up to 16 participants with ASD.