Neural Correlates of Autistic Individuals With Anorexia Nervosa

Inclusion Criteria: Healthy Autistic Individuals (Autistic Controls) must: * Be aged 25-45 years * Be Autistic (clinically diagnosed and/or have an Autism Quotient (AQ-10) score of ≥6) * Be able to provide informed consent for the study * Be able to read, understand and respond to questionnaires in English * Have no history of an eating disorder * Willing to have an MRI scan in Aberdeen Autistic Individuals with anorexia nervosa must: * Be aged 25-45 years * Be Autistic (clinically diagnosed and/or have an AQ-10 score of ≥6) * Be able to provide informed consent to the study * Be able to read, understand and respond to questionnaires in English * Have a diagnosis of anorexia nervosa or a body mass index of \<18.5 * Willing to have an MRI scan in Aberdeen Exclusion Criteria: Individuals are not eligible for the study if they: * Are aged \<25 or \>45 years * Are not Autistic or not clinically diagnosed as Autistic and have an AQ-10 score of \<6 * Are diagnosed with an eating disorder other than anorexia nervosa * Have a history of brain injury (e.g., stroke) * Be unable to provide informed consent for the study * Have contraindications to MRI scanning, such has implantable cardiac devices * Are unable to read, understand and respond to questionnaires in English * As participants will need to consent to the study and complete questionnaires by themselves, individuals with intellectual disability will be excluded from this study