* The purpose of this study is to examine your attitude and perception toward treatment options for individuals with chronic Anorexia nervosa. You are eligible to participate in this study if you are: (a) a male or female who is at least 18 years of age and employed as a clinician who treats eating disordered patients, or (b) a male or female who is at least 18 years of age and has received the diagnosis of Anorexia nervosa. Upon entering the survey, you will first read a description of the procedure for Deep Brain Stimulation (DBS) surgery, and a brief overview of its potential risks and benefits. You will then be directed to a different page, and be asked to answer questions assessing personal demographic information, and will then be prompted to identify yourself as either a patient or a clinician in order to be directed to the appropriate survey. As a clinician, you will be prompted to answer various questions about your background in treating eating disorders, your treatment orientation, methods, and client base, and whether or not you would be likely to refer a client for DBS surgery. As a patient who has been diagnosed with Anorexia nervosa, you will be prompted to answer questions about eating disorder history, symptoms, treatment history, and whether or not you would consider receiving DBS surgery.

This study is being conducted by Dr. Tom Hildebrandt, PsyD, Assistant Professor at the Mount Sinai School of Medicine. Participation in this study will involve completing this internet-based questionnaire. The purpose of this study is to examine the attitudes towards DBS surgery to treat chronic, treatment-resistant Anorexia nervosa. Previous research has been published regarding the efficacy of using DBS in this population, and has shown that DBS can successfully be used to treat individuals in this population. However, our proposed research is original because it seeks to examine clinician and patient attitudes towards the DBS procedure, and get a better sense of how it is perceived within the clinical community as a potential treatment option.

You may be eligible to take part in this research study if you are over 18 years of age and either (a) a clinician who treats patients with eating disorders, or (b) a patient who has received the diagnosis of Anorexia nervosa.

Your participation in this research study is expected to last a total of 25 minutes. A breakdown of this time commitment is as follows:
1. Read Consent Form and agree to participate in the study (5 minutes).
2. Read short summary of the DBS procedure (5 minutes).
3. Read and answer questions related to demographic information (2 minutes).
4. Read and answer various questions related to eating disorder history or treatment history (10 minutes).

Participation in this study is voluntary. You may withdraw from the study at any time without penalty. If you choose not to participate, or not to complete the questionnaire after starting it, then simply exit the webpage. The data will not be stored. If you have any questions, concerns, or complaints at any time about this research, or you think the research has hurt you, please contact the office of the research team and/or the Principal Investigator Dr. Tom Hildebrandt, PsyD, at phone number (212) 659-8724. If you experience an emergency during your participation in this research, contact 911 or go to the closest emergency room.

This research has been reviewed and approved by an Institutional Review Board. You may reach a representative of the Program for Protection of Human Subjects at Mount Sinai School of Medicine at telephone number (212) 824-8200 during standard work hours for any of the following reasons:
• Your questions, concerns, or complaints are not being answered by the research team.
• You cannot reach the research team.
• You are not comfortable talking to the research team.
• You have questions about your rights as a research subject.
• You want to get information or provide in