Dr Ashcroft studied at the Departments of Psychology and Education, University of Wales Cardiff, Department of Psychiatry, Academic Clinical Psychology Unit, The Victoria University of Manchester, Forensic Medicine Unit, Medical School, University of Edinburgh, and at the Department of Psychotherapeutic Studies, University of Sheffield.
His interests in clinical hypnosis span 18 years, having gained a Postgraduate Diploma of Clinical Hypnosis (Distinction) after studying at the Department of Psychotherapeutic Studies, University of Sheffield, which is a recognised and approved training course by the British Society of Clinical and Academic Hypnosis. He has full professional registration of The Hypnotherapy Association and the Complimentary & Natural Healthcare Council.
Dr Ashcroft regularly supervises other healthcare professionals in their hypnosis training, and conducts research into the use of hypnosis in forensic contexts.
His main areas of interest within clinical hypnosis are in the treatment of and management of obesity, which includes those patients undergoing weight loss (bariatric) surgery. Hypnosis has been found to be an effective adjunctive treatment for address eating behaviour disorders in obesity patients; in addition have found clinical hypnosis to be very helpful in treating Functional Gastrointestinal Disorders, especially refractive Irritable Bowel Syndrome, and is recommended by the National Institute for Clinical Excellence.