1 Division of Acute Care Surgical Services, Department of Surgery, Virginia Commonwealth University Health, Richmond, VA, 23298; University of Durham, Department of Psychology, South Road, Durham DH1 3LE, UK. Electronic address: nicholas.thomson@vcuhealth.org.
2 University of Durham, Department of Psychology, South Road, Durham DH1 3LE, UK; School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150, Kelantan, Malaysia.
3 Autism Research Centre, Department of Psychiatry, Cambridge University, Douglas House, 18B Trumpington Road, Cambridge CB2 8AH, UK.
4 University of Durham, Department of Psychology, South Road, Durham DH1 3LE, UK.