Exit Questionnaire (76K MSWord file) This is the questionnaire completed by experienced Insight practitioners immediately following their meditation experience in the scanner, describing their meditation experience. "A long time ago, Descartes said, 'I think, therefore I am.' But if you are not thinking, what?" - Seung Sahn Phone Script (24K MSWord file) and associated worksheet (17K Excel file) This is the series of questions we ask participants to quantify the approximate total number of hours of sitting meditation experience. A day on retreat is counted as 10 hours. Unpublished data (514K Powerpoint file). Images from the thickness study that were not included in the final publication

This work has been sponsored by the National Institutes of Health and the Center for Disease Control and Prevention.