• Maercker, Andreas, Department of Psychology, Universität Zürich, Zurich, Switzerland
• Magnússon, Páll
• Mahalaksmi, Arehally Marappa, Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, India
• Maisto, Domenico, Institute for High Performance Computing and Networking, National Research Council, Naples
• Maliske, Lara , linical Psychology and Behavioral Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden
• Mander, Johannes, Center for Psychological Psychotherapy, Heidelberg University, Heidelberg, Germany
• Mandy, William, Research Department of Clinical, Educational, & Health Psychology, University College London, London, United Kingdom
• Marafioti, Giulia, IRCCS Bonino-Pulejo Neurolesi Center, Messina, Italy
• Margraf, Jürgen, Mental Health Research and Treatment Center, Ruhr University Bochum, Bochum, Germany
• Martin, Alexandra, Department for Clinical Psychology and Psychotherapy, University of Wuppertal, Wuppertal, Germany
• Martin-Soelch, Chantal, Clinical Psychology and Health Psychology, Department of Psychology, University of Fribourg, Fribourg, Switzerland
• Martin-Soelch, Chantal, IReach Lab, Unit of Clinical and Health Psychology, Department of Psychology, University Fribourg, Fribourg, Switzerland
• Martin-Soelch, Chantal, Department of Psychology, University of Fribourg, Fribourg, Switzerland
• Martino, Gabriella, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
• Martino, Maria Luisa, Department of Humanistic Studies, Federico II University, Naples, Italy
• Matone, Alice, Osservatorio Nazionale Alcol, Centro Nazionale Dipendenze e Doping, Istituto Superiore di Sanità, Rome, Italy
• Matos, Marta, CIS-IUL – Centro de Investigação e Intervenção Social, ISCTE – Instituto Universitário de Lisboa, Lisbon, Portugal
• Mbong, Eta Ngole, MOMENTUM Integrated Health Resilience (MIHR), IMA World Health, Goma, North Kivu, Democratic Republic of Congo
• Mc Gee, Shauna L., Psychopathology and Clinical Intervention, Institute of Psychology, University of Zurich
• McCracken, Lance M., Department of Psychology, Uppsala University, Uppsala, Sweden
• McElroy, Eoin, School of Psychology, Ulster University, Coleraine, United Kingdom
• McFarlane, Alexander C., Psychiatry, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
• McKay, Dean, Department of Psychology, Fordham University, New York, NY, USA
• McNally, Richard J., Department of Psychology, Harvard University, Cambridge, MA, USA
• Meachon, Emily J., Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany
• Meeten, Frances, School of Psychology, University of Sussex, Sussex, United Kingdom
• Meeten, Frances, School of Psychology, University of Sussex, Brighton, United Kingdom
• Mehlsen, Mimi Yung, Department of Psychology, Aarhus University, Aarhus, Denmark
• Mehrmann, Linda Marlen, Institute of Clinical Psychology and Psychotherapy, University of Cologne, Cologne, Germany
• Meier, Scott T., Counseling, School and Educational Psychology, University at Buffalo, Buffalo, NY, USA
• Meinertz Dantoft, Thomas, Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Capital Region of Denmark, Denmark
• Meira e Cruz, Miguel, Centro Cardiovascular da Universidade de Lisboa, Lisbon School of Medicine, Lisbon, Portugal
• Melcop, Nikolaus, Federal Chamber of Psychotherapists, Berlin
• Merlo, Emanuele Maria, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
• Merzhvynska, Mariia, Department of Psychology, University of Zurich, Zurich, Switzerland
• Messerli-Bürgy, Nadine, Family and Development Research Center, Institute of Psychology, University of Lausanne, Lausanne, Switzerland
• Metodiev, Stanislav, Department of Psychology, LMU Munich [study institution], Munich, Germany
• Mewes, Ricarda, Outpatient Unit for Research, Teaching and Practice, Faculty of Psychology, University of Vienna, Vienna, Austria
• Mewes, Ricarda, Division of Clinical Psychology and Psychotherapy, Department of Psychology, Philipps-University of Marburg, Marburg, Germany; Outpatient Unit for Research, Teaching and Practice, Faculty of Psychology, University of Vienna, Vienna, Austria (Germany)
• Meyer, Andrea Hans, Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland
• Meyer, Thomas D., Faillace Department of Psychiatry and Behavioral Sciences, McGovern School of Medicine, University of Texas HSC, Houston, TX, USA
• Meyer, Thomas D., McGovern Medical School, Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, University of Texas HSC at Houston, Houston, TX, USA
• Michael, Tanja, Department of Psychology, Saarland University, Saarbrucken, Germany
• Michalak, Johannes, Department of Clinical Psychology and Psychotherapy, Universität Witten-Herdecke, Witten, Germany
• Mikoteit, Thorsten, Psychiatric Services Solothurn, Solothurn, Switzerland; Centre for Affective, Stress and Sleep Disorders, Psychiatric Hospital, University of Basel, Basel, Switzerland
• Miloff, Alexander, Department of Psychology, Stockholm University, Stockholm, Sweden
• Moggia, Danilo, Department of Psychology, Trier University, Trier, Germany
• Mohan Kumar, Velayudhan, Kerala Chapter, National Academy of Medical Sciences (India), New Delhi, India
• Montesano, Adrian, Faculty of Psychology and Educational Sciences, Universitat Oberta de Catalunya, Barcelona, Spain
• Morina, Naser, Swiss Research Institute for Public Health and Addiction, Zurich, Switzerland