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- M. Brewster SmithAmerican psychologist (1919–2012)
- M. David RuddAmerican psychologist and academic administrator
- M. Lynne CooperAmerican psychologist and academic
- M. Scott PeckAmerican psychiatrist (1936–2005)
- M'Naghten rulesGuideline governing legal pleas of insanity
- M21-1 Adjudication Procedures ManualU.S. Department of Veterans Affairs policy and procedures manual
- Macdonald triadSet of behavioral characteristics
- Mach bandsOptical illusion
- MACH-IV (test)Personality psychometric
- Machiavellianism (psychology)Personality construct
- Machiavellianism in the workplaceConcept in organizational psychology
- MacropsiaMacropsia is a neurological condition affecting human visual perception, in which objects
- Mad in America2002 book by Robert Whitaker
- Mad prideMovement encouraging pride in people with mental illnesses
- Mad studiesField of scholarship
- Madhouse: A Tragic Tale of Megalomania and Modern Medicine2005 book by Andrew Scull
- Madhouses Act 1774United Kingdom legislation which set out a legal framework for regulating "madhouses"
- Madonna ConstantineAmerican psychologist
- Madonna–whore complexMental complex revolving around negative views of female sexuality
- Magda B. ArnoldAmerican psychologist (1903–2002)
- Magdalen Dorothea VernonBritish experimental psychologist
- MageirocophobiaFear of cooking
- Maggie SnowlingBritish psychologist (born 1955)
- Magic EyeMagic Eye is a series of books that feature autostereograms.
- Magical thinkingBelief in the connection of unrelated events
- Mahzarin BanajiIndian social psychologist (born 1956)
- Maimonides' ruleRule used to evaluate the effect of class size on student test scores
- Mainstream Science on Intelligence1994 public statement published in the Wall Street Journal
- Majd KamalmazAmerican psychotherapist and missing person
- Major Depression InventoryMedical diagnostic method
- Make believeMake believe, also known as pretend play or imaginative play, is a loosely structured form
- Makeba WilbournAmerican psychologist and professor
- Making Monsters: False Memories, Psychotherapy, and Sexual Hysteria1994 book
- Maladaptive daydreamingTrait associated with some mental disorders
- MaladjustmentInability to react to environmental demands in psychology
- Malan trianglesPsychotherapeutic theory
- Malcolm JeevesScottish psychologist
- Male hysteriaPsychiatric diagnosis made during World War I
- Male warrior hypothesisHypothesis in evolutionary psychology
- Malie CoyneIrish psychologist
- Malignant narcissismTheoretical personality disorder construct
- Malinda CarpenterFellow of the Royal Society of Edinburgh
- MalingeringFaking illness for personal gain
- Malingering of post-traumatic stress disorderFeigning PTSD for ulterior motives
- Mamie Phipps ClarkAmerican social psychologist (1917–1983)
- MamihlapinatapaiWord in the Yaghan language
- Mammy stereotypeU.S. historical stereotype
- Management of borderline personality disorderThe mainstay of management of borderline personality disorder is various forms of psychoth
- Management of domestic violenceThe management of domestic violence deals with the treatment of victims of domestic violen
- Management of post-traumatic stress disorderTherapeutic interventions for post-traumatic stress disorder
- Management of schizophreniaMethods of managing schizophrenia
- Managerial psychologyManagerial psychology is a sub-discipline of industrial and organizational psychology that
- Manès SperberAustrian writer
- Manfred CierpkaManfred Cierpka (13 April 1950, Nürtingen - 14 December 2017, Heidelberg) was a German psy
- ManiaeAncient Greek spirit of madness
- Manifestation (popular psychology)Supposed supernatural ability
- Manipulation (psychology)Exploitative type of social influence
- ManKind InitiativeThe ManKind Initiative is a domestic violence charity based in the United Kingdom and is a
- ManKind ProjectInternational men's organization
- Manuel Isaías LópezMexican psychiatrist (1941–2017)
- Mapa ng LoobThe Mapa ng Loob [ˈmapa naŋ lɔʔˈɔb], or Masaklaw na Panukat ng Loob [ˈmasak'law na pa'nuka
- Maps of Meaning1999 book by Jordan Peterson
- Marc KernAmerican psychologist
- Marc PotenzaAmerican psychiatrist
- Marc SagemanAmerican forensic psychiatrist and intelligence analyst
- Marcel CzermakFrench psychiatrist and psychoanalyst (1941–2021)
- Marcel ZentnerAustrian psychologist
- Marcia GuttentagAmerican clinical social psychologist
- Marcia K. JohnsonAmerican psychologist and scholar
- Marco BertaminiItalian psychologist (born 1966)
- Marcus MunafoBritish psychologist and researcher
- Maree TeessonAustralian health professional
- Margaret Beale SpencerAmerican academic
- Margaret Brenman-GibsonMargaret Brenman-Gibson (1918–2004) was an American psychologist, among the first to use o
- Margaret Bull KoveraAmerican social psychologist
- Margaret Byrd RawsonAmerican dyslexia expert, educator and psychologist (1899–2001)
- Margaret Clark (psychologist)American psychologist
- Margaret LowenfeldBritish child psychologist
- Margaret MahlerAustrian-born American psychiatrist and psychoanalyst
- Margaret McFarlandAmerican psychologist
- Margaret NaumburgPsychologist
- Margaret RosarioAmerican psychologist
- Margaret SingerAmerican psychologist and researcher (1921–2003)
- Margarete Mitscherlich-NielsenGerman psychoanalyst
- Margie E. LachmanAmerican psychologist
- Margie HolmesFilipina psychologist and television host
- Margo WilsonCanadian psychologist (1942–2009)
- Margot BengtssonSwedish psychologist
- Margot SunderlandBritish psychologist
- Marguerite AucouturierFrench psychoanalyst and translator (1932–2020)
- María Elena Medina-Mora IcazaMexican psychologist and researcher
- Maria Helena Souza PattoBrazilian psychologist
- Maria KovacsAmerican psychologist
- Maria Nowak-VoglAustrian child psychiatrist known for authoritarian and repressive methods
- Mária TörökHungarian-born French psychoanalyst
- Maria Verónica ReinaDisability rights activist
- Maria W. PiersAustrian-born American psychologist, social worker, and educator
- Marian Breland BaileyAmerican psychologist (1920–2001)
- Marian PetreBritish computer scientist
- Marian SigmanAmerican developmental and child psychologist
- Marianne Schmid MastMarianne Schmid Mast is a Professor of Organizational Behavior and Dean of the Faculty of
- Marianne SimmelGerman-American psychologist
- Marie Battle SingerFirst black UK psychoanalyst
- Marie BonaparteFrench writer, psychoanalyst, and Princess of Greece and Denmark (1882–1962)
- Marie ChapianAmerican writer
- Marie Clotilde BonaparteMarie Clotilde Eugénie Alberte Laetitia Geneviève Bonaparte (20 March 1912, Brussels, Belg
- Marie CroweNew Zealand psychotherapy academic
- Marie de HennezelFrench psychologist, psychotherapist, writer (*1946)
- Marie JahodaBritish Austrian-born psychologist
- Marie JohnstonBritish psychologist
- Marie MeierhoferSwiss children's psychiatrist and pedagogue
- Marie NyswanderAmerican psychiatrist and psychoanalyst (1919–1986)
- Marie Skodak CrisseyAmerican developmental psychologist
- Marié WissingSouth African clinical psychologist
- Marie WittmanMarie "Blanche" Wittman (often spelled Wittmann; April 15, 1859 – 1913) was a French woman
- Marigold LintonNative American cognitive psychologist (born 1936)
- Marijuana AnonymousTwelve-step program
- Marilyn NippoldAmerican language and communications scientist
- Marilyn Price-MitchellAmerican psychologist
- Marilynn BrewerAmerican psychologist
- Marina VoikhanskayaSoviet-British psychiatrist (born 1934)
- Mario PoggiPeruvian psychologist and murderer (1943–2016)
- Marion MilnerBritish writer and psychoanalyst (1900–1998)
- Marion UnderwoodAmerican psychologist and researcher of social aggression
- Marion WoodmanCanadian psychoanalyst (1928–2018)
- Marital rapeRape of a victim by their spouse
- Marital rape laws by countryThis article provides an overview of marital rape laws by country.
- Maritza MonteroVenezuelan social psychologist and political scientist
- Marius RommeDutch psychiatrist (1934–2026)
- Marjorie Pyles HonzikAmerican psychologist
- Marjorie Van de WaterAmerican sociologist (1900–1962)
- Marjory Bates PrattAmerican poet
- Mark A. McDanielAmerican psychologist
- Mark B. SobellAmerican psychologist
- Mark BlagroveBritish research psychologist
- Mark BrayneAmerican psychotherapist and former journalist
- Mark D. GriffithsBritish psychologist
- Mark G. FrankMark G. Frank (born 1961) is a communication professor and department chair, and an intern
- Mark GrotjahnMark Grotjahn (born 1968) is an American painter best known for abstract work and bold geo
- Mark L. KnappAmerican academic
- Mark LearyAmerican psychologist
- Mark R. GinsbergAmerican psychologist and academic administrator
- Mark RaginsPsychiatrist and psychosis specialist
- Mark Rosenzweig (psychologist)American research psychologist
- Mark Snyder (psychologist)Markus Snyder is an American social psychologist who is recognized as the founder of the p
- Mark StemmlerMark Stemmler (born August 7, 1960, in Norwood, Massachusetts, United States), was Profess
- Mark van VugtDutch evolutionary psychologist (born 1967)
- Mark Walrod HarringtonAmerican scientist (1848–1926)
- Marlene BehrmannAmerican psychologist (born 1959)
- Marlene Dobkin de RiosAmerican anthropologist and psychotherapist
- Marlene MaheuAmerican clinical psychologist
- Marlene ScardamaliaCanadian education researcher
- Marlene WayarArgentine LGBT rights activist
- Marley hypothesisPsychological theory
- Marriage of Lunatics Act 1811Act of the Parliament of the United Kingdom
- Marsha M. LinehanAmerican psychologist
- Marshall RosenbergAmerican psychologist and mediator (1934–2015)
- Martha BanksResearch neuropsychologist
- Martha BeckAmerican sociologist
- Martha E. BernalAmerican psychologist (1931–2001)
- Martha GivaudanMartha Edith Givaudan Moreno (born 28 September 1956, Mexico City) is the Executive Direct
- Martha Mitchell effectLabelling real experiences as delusional
- Martin A. ConwayBritish memory studies psychologist (1952–2022)
- Martin BrokenlegAmerican psychologist
- Martin GrotjahnMartin Grotjahn (July 8, 1904 - September 30, 1990) was a German-born American psychoanaly
- Martin L. LalumièreCanadian Psychologist
- Martin PickeringBritish cognitive psychologist
- Martin StantonMartin Stanton (born 21 March 1950) is a British writer, teacher and psychoanalyst.
- Marvin GoldfriedAmerican psychologist
- Marvin R. BaxterMarvin Ray Baxter (born January 9, 1940) is a former Associate Justice of the Supreme Cour
- Marvin ZuckermanAmerican psychologist (1928–2018)
- Mary AinsworthAmerican-Canadian psychologist & scholar
- Mary CannonIrish psychiatrist and research scientist
- Mary Collins (psychologist)British psychologist
- Mary E. LarimerAmerican psychologist and academic
- Mary E. ReuderAmerican experimental psychologist, statistician
- Mary Esther HardingAmerican physician & Jungian analyst
- Mary FlorentineMary Florentine is a Matthews Distinguished Professor at Northeastern University specialis
- Mary Garson (nun)Mary Sunniva Garson MBE (3 October 1921 – 8 March 2007) was a Scottish nun. A Catholic con
- Mary GergenAmerican psychologist (1938–2020)
- Mary HayhoeVision scientist
- Mary HenleAmerican university teacher and psychologist (1913–2007)
- Mary Jane Rotheram-BorusAmerican licensed psychologist
- Mary K. RothbartMary Klevjord Rothbart (born May 22, 1940, in Lewistown, Montana) is professor emerita of
- Mary L. TrumpAmerican psychologist and author (born 1965)
- Mary MainAmerican psychologist (1943–2023)
- Mary MullarkeyMary Jane Mullarkey (September 28, 1943 – March 31, 2021) was a chief justice of the Color
- Mary N. MeekerAmerican educational psychologist and entrepreneur
- Mary PipherAmerican clinical psychologist and author
- Mary TuckBritish social scientist and civil servant (1928–1996)
- Mary W. HicksAmerican psychology professor
- Mary ZanariniBorderline Personality Disorder Scientist
- MaryAnn BaenningerAmerican academic
- Maryanne GarryNew Zealand educational psychology academic
- MasklophobiaFear of masks, costumes and mascots
- Maslow on Management1965 book by Abraham Maslow
- Mass suicideGroups of people killing themselves together
- Mass suicides in Nazi GermanyGerman suicides at the end of World War II
- Massimo FagioliItalian psychiatrist and film director (1931–2017)
- Master of EducationThe Master of Education (MEd or M.Ed. or Ed.M.; Latin Magister Educationis or Educationis
- Matatarō MatsumotoJapanese psychologist
- Match-to-sample taskShort-term memory for learned associations has been studied using the match-to-sample task
- Matching hypothesisMate selection by social desirability
- Matching lawQuantitative relationship
- Maternal bondRelationship between mother and child
- Maternal deprivationWork on the effects of separating infants and young children from their mother
- Maternal sensitivityMother's ability to perceive her child's behavioural signals
- Mathematical anxietyAnxiety towards math
- Mathematical models of social learningMathematical models of social learning aim to model opinion dynamics in social networks. C
- Mathematical psychologyMathematical modeling of psychological theories and phenomena
- MathemeConcept in Lacanian thought
- Mathilda B. CanterAmerican psychologist (1924–2015)
- Matina HornerAmerican psychologist (born 1939)
- Matt Jarvis (psychologist)English psychologist (born 1966)
- Matt McGueAmerican behavior geneticist
- Matthew BelmonteBritish researcher
- Matthew effectThe rich get richer and the poor get poorer
- Maturity (psychological)Learned ability to respond to the environment in a socially appropriate manner
- Maud BodkinAmy Maud Bodkin (1875 in Chelmsford, Essex – 1967 in Hatfield, Hertfordshire) was an Engli
- Maud MannoniFrench psychoanalyst
- Maudsley family therapyForm of treatment for anorexia nervosa
- Maureen BlackAmerican pediatric psychologist
- Maureen MolloyAustralian neuropsychology pioneer
- Max AbbottNew Zealand psychologist
- Max LüscherMax Lüscher (9 September 1923 – 2 February 2017) was a Swiss psychotherapist known for inv
- Max Planck Institute for PsycholinguisticsDutch institute in Nijmegen
- Max Planck Institute for Psychological ResearchThe Max Planck Institute for Psychological Research was a research institute of the Max Pl
- Max Siegel (psychologist)American psychologist
- Max Taylor (psychologist)Maxwell "Max" Taylor (born 19 April 1945) is a criminal and legal psychologist. His early
- Max WertheimerAustro-Hungarian psychologist (1880–1943)
- Maximization (psychology)Maximization is a style of decision-making characterized by seeking the best option throug
- May Smith (psychologist)British psychologist (1879–1968)
- Maya Bar-HillelIsraeli psychologist (born 1943)
- Maya ShankarCognitive scientist
- Mayer–Salovey–Caruso Emotional Intelligence TestTest of emotional intelligence
- McCollough effectHuman visual perception phenomenon
- McGurk effectPerceptual illusion
- McLean Screening Instrument for Borderline Personality DisorderMedical screening questionnaire
- McMartin preschool trial1980s day care sexual abuse case
- McWilliams v. Dunn2017 United States Supreme Court case
- MDMA-assisted psychotherapyControlled administration of psychoactive drug MDMA to facilitate psychotherapy efficacy
- Mean world syndromePerceiving the world to be more dangerous than it really is
- Meaning (existential)Meaning in existentialism is descriptive regarding "the meaning of life"; therefore it is
- Meaning (psychology)Epistemological concept used in multiple disciplines
- Meaningful learningType of learning
- Measures of guilt and shameMeasures of guilt and shame are used by mental health professionals to determine an indivi
- Mechanical aptitudeAccording to Paul Muchinsky in his textbook Psychology Applied to Work, "mechanical aptitu
- Mechanical jointA mechanical joint is a section of a machine which is used to connect one or more mechanic
- Mechanism of autismBiological processes that may contribute to autism
- MechanomorphismSeeing machine-like behaviour in other humans
- MechanophiliaSexual attraction to machines
- Media and teen relationshipsIn 2011, the average number of televisions per household in the United States was 2.5 with
- Media multiplexity theoryConcept in social science
- Media naturalness theoryMedia naturalness theory is also known as the psychobiological model. The theory was devel
- Media panicEmotional discourse related to media technologies
- Media psychologyArea of psychology
- Media system dependency theory1976 theory developed by Sandra Ball-Rokeach and Melvin Defleur
- Medial superior temporal areaThe medial superior temporal (MST) area is a part of the cerebral cortex, which lies in th
- Medical views of conversion therapyMany health organizations around the world have denounced and criticized efforts to change
- Medical-psychological assessment (Germany)Examination to assess fitness to drive
- Medication phobiaMedical condition
- Megan NeyerAmerican springboard diver
- Melanie JoyAmerican psychologist (born 1966)
- Melba J. T. VasquezAmerican psychologist (born 1951)
- Meleeka ClaryAmerican clinical psychologist
- Melissa FarleyAmerican psychologist (born 1942)
- Melodic learningMultimodal learning method
- MelomaniaMelomania is the intense attachment to music experienced by a music lover. Depending on th
- Melvin J. LernerMelvin J. Lerner, Professor of Social Psychology at the University of Waterloo between 197
- MemoryFaculty of mind to store and retrieve data
- Memory and decision-makingThe memory system plays a key role in the decision-making process because individuals cons
- Memory and retention in learningMental processes
- Memory and social interactionsMemory supports and enables social interactions in a variety of ways. In order to engage i
- Memory and traumaEffects of trauma on memory
- Memory boxBox containing objects that serve as reminders
- Memory conformityPhenomenon in memory
- Memory developmentDevelopment of memory in children
- Memory disorderDamage to the brain's memory capacity
- Memory improvementAct of improving one's memory
- Memory rehearsalMemory rehearsal is a term for the role of repetition in the retention of memories. It inv
- Memory spanLongest list of items one can memorize immediately
- Memory sportMemory competitions
- Memory studiesField of psychology
- Mensa InternationalLargest and oldest high-IQ society in the world
- Menstruation and mental healthMenstruation and mental health are closely connected, as hormonal fluctuations throughout
- Mental ageConcept relating to intelligence
- Mental blockUncontrollable suppression or repression of painful or unwanted thoughts/memories
- Mental Capacity Act 2005Act of the Parliament of the United Kingdom
- Mental capacity in England and WalesIn the law of England and Wales, best interest decisions are decisions made on behalf of p
- Mental capitalMental capital means the degree of mastery of life skills at the time an individual faces
- Mental Deficiency Act 1913Act of the Parliament of the United Kingdom
- Mental disorders and genderGender is correlated with the prevalence of certain mental disorders
- Mental disorders diagnosed in childhoodMedical condition
- Mental distressSymptoms and experiences that are troubling, confusing, or unusual
- Mental energyCapacity for cognitive work
- Mental Health (Discrimination) Act 2013Act of the Parliament of the United Kingdom
- Mental Health Act 1959Act of the Parliament of the United Kingdom
- Mental Health Act 1983Act of the Parliament of the United Kingdom
- Mental health among female offenders in the United StatesWomen in American prisons encounter numerous difficulties that often involve mental health
- Mental Health Awareness MonthAmerican observation in May since 1949
- Mental health care in South AfricaMental illness is very prevalent in South Africa, yet the country lacks many of the necess
- Mental health care navigatorA mental health care navigator is an individual who assists patients and families to find
- Mental health consequences of immigration detentionMental health consequences of immigration detention include higher rates of depression, an
- Mental health counselorProfessional providing mental health support
- Mental health dayAbsence for mental health reasons
- Mental health first aidTraining for nonspecialists
- Mental health in aviationMental health in aviation is a major concern among airlines, regulators, and passengers. T
- Mental health in IrelandMental health in the Republic of Ireland is the subject of state and community sector inte
- Mental health in New ZealandMental health in New Zealand generally follows the trends of mental health in other OECD c
- Mental health in PalestineThe mental health of Palestinians has been described as among the worst in the world, with
- Mental health in Puerto RicoPuerto Rico has been in economic crisis for a long time due to its unpayable debt. As of 2
- Mental health in RussiaMental health in Russia is covered by a law, known under its official name—the Law of the
- Mental health in Singapore during the colonial periodMental health in Singapore has its roots in the West. The first medical personnel in the f
- Mental health in South KoreaOver the past few decades, mental health has become an increasingly serious issue in healt
- Mental health in Southeast AfricaMental health in Southeast Africa is a concern, where mental illness is prevalent. Mental
- Mental health in the Australian Football LeagueMental health refers to a person's mental state, well-being, and ability to cope with the
- Mental health in the PhilippinesMental health in the Philippines is the survey of the status of psychological, psychiatric
- Mental health in the United KingdomMental health in the United Kingdom involves state, private and community sector intervent
- Mental health inequalityUnequal distribution of mental health care quality
- Mental health informaticsMental health informatics is a branch of health or clinical informatics focused on the use
- Mental health lawSubset of law
- Mental health literacyAbility to recognise and understand mental health disorders
- Mental health nurseNurse who specialises in care for patients with mental health issues
- Mental health nursingNursing specialty focused on mental health and related conditions
- Mental health of Adolf HitlerAlthough Adolf Hitler was never formally diagnosed with any mental illnesses during his li
- Mental health of Asian AmericansIssues and problems for Asian American mental health
- Mental health of Chinese studentsLevel of psychological well-being
- Mental health of Filipino AmericansThe mental health of Filipino Americans is emotional and cognitive status of Americans of
- Mental health of JesusStudy of the psychological state of Jesus
- Mental Health Parity Act of 19961996 U.S. law
- Mental health professionalHealth care practitioner or community services provider
- Mental health psycho-social supportActivities aiding mental well-being
- Mental Health Research Institute (Melbourne)The Mental Health Research Institute (MHRI) is a former Australian medical research instit
- Mental Health Research UKBritish mental health charity
- Mental health tribunalTribunal hearing for mental health treatment disputes
- Mental Illness Awareness WeekAwareness week in the United States
- Mental illness denialOpposition to psychiatric diagnoses
- Mental illness in ancient GreeceMental illness was an issue that many faced in ancient times much like in the modern world
- Mental illness in ancient RomeMental illnesses and their treatments in Ancient Rome
- Mental illness in mediaCritique of media portrayal of mental illness
- Mental imageRepresentation in the mind of objects, activities or events, whether they existed or not
- Mental ImagesMental Images GmbH (stylized as mental images) was a German computer generated imagery (CG
- Mental lexiconThe mental lexicon is a component of the human language faculty that contains information
- Mental mappingPerson's point-of-view perception of their area
- Mental Measurements YearbookReference book series of educational tests
- Mental modelMental representation of the external world
- Mental operationsOperations affecting mental contents
- Mental rotationRotation of an object in the mind
- Mental status examinationWay of observing and describing a patient's current state of mind
- Mental time travelCapacity to mentally reconstruct personal events from the past
- Mentalism (psychology)Once-antagonistic term for the study of mental perception and thought processes
- MentalizationAbility to understand mental state that underlies behavior
- Mentalization-based treatmentForm of psychotherapy
- Mentally ill people in United States jails and prisonsIncarceration of people with psychiatric disorders
- Mere-exposure effectPsychological phenomenon
- Mere-measurement effectPhenomenon in behavioural psychology
- Meredith ChiversCanadian sexologist
- Meredith StarrRoland Meredith Starr (born Herbert Close; 29 December 1890 – 13 December 1971) was a Brit
- Merrill CarlsmithJames Merrill Carlsmith (April 12, 1936 – April 19, 1984) was an American social psycholog
- Messiah complexBelief that one is a messiah or prophet
- Meta (prefix)Prefix in English derived from Greek
- Meta-emotionEmotions, and thoughts, about emotion
- Meta-learningAspect of metacognition
- MetacognitionSelf-awareness about thinking, higher-order thinking skills
- Metacognitive therapyPsychotherapy aimed at helping clients to a better approach to their negative thoughts
- Metacognitive trainingTreatment for psychosis in schizophrenia
- Metallic Metals ActFictional legislation
- MetamemorySelf-awareness of memory
- MetamoodIndividual's awareness of their own emotions
- MetamotivationPsychology concept
- Metanoia (psychology)Fundamental change in the human personality (psychology)
- Metaphor therapyMetaphor therapy is a kind of psychotherapy that uses metaphor as a tool to help people ex
- MetapsychologyPsychological aspect
- MetastereotypeGroup's own perceptions of how it is stereotypically viewed by another group
- Method of spiritual victorySpiritual method
- Methods of neuro-linguistic programmingPseudo-scientific intellectual framework
- Methods used to study memoryThe study of memory incorporates research methodologies from neuropsychology, human develo
- Mia A. Smith-BynumAmerican clinical psychologist
- Mia Kellmer PringleAustrian-British psychologist (1920–1983)
- Micha PopperIsraeli psychologist
- Michael A. LindseyAmerican mental health researcher and academic
- Michael A. McDanielAmerican psychologist
- Michael AndertonEnglish clergyman, psychologist, and cricketer (1931–2020)
- Michael AnestisAmerican clinical psychologist and suicidologist
- Michael BalintHungarian psychoanalyst (1896–1970)
- Michael Bar-EliIsraeli psychologist
- Michael C. SetoCanadian forensic psychologist
- Michael Cunningham (psychologist)Michael Robert Cunningham is an American social psychologist and professor in the Departme
- Michael D. NewcombMichael Donald Newcomb (December 20, 1952 – February 13, 2010) was an American psychologis
- Michael D. RobbinsAmerican author, psychoanalyst, and former professor of Psychiatry
- Michael D. YapkoMichael D. Yapko (born August 5, 1954) is a clinical psychologist and author, whose work i
- Michael E. NewcombAmerican clinical psychologist
- Michael EigenAmerican psychologist and psychoanalyst
- Michael EysenckBritish psychologist (born 1944)
- Michael Fitzpatrick (physician)Michael Fitzpatrick (born 1950) is a libertarian, British general practitioner (GP) and au
- Michael FreseGerman psychologist
- Michael GurianAmerican author and social philosopher
- Michael HendricksAmerican psychologist
- Michael HoggAustralian psychologist
- Michael J. SaksAmerican legal scholar
- Michael Kraus (psychologist)American social psychologist and academic
- Michael KubovyMichael Kubovy (1940-2025) was an Israeli American psychologist known for his work on the
- Michael KyriosAustralian clinical psychologist
- Michael Lamb (psychologist)Michael E. Lamb is a professor and former Head of the then Department of Social and Develo
- Michael Lewis (psychologist)American psychologist (born 1937)
- Michael Murphy (author)Michael Murphy (born September 3, 1930) is the co-founder of the Esalen Institute, a key f
- Michael MuthukrishnaProfessor of economic psychology
- Michael OlusanyaNigerian mental health counselor
- Michael OwrenAmerican psychologist (1955–2014)
- Michael P. HengartnerMichael Pascal Hengartner is an academic psychologist at the Zurich University of Applied
- Michael Perelman (psychologist)Michael A. Perelman is an American psychologist. He is a Clinical Professor Emeritus of Ps
- Michael PersingerAmerican-Canadian professor of psychology
- Michael Pitts (pastor)Michael Pitts is an American pastor, preacher, and author. He is the founding pastor of Co
- Michael RutterBritish child psychiatrist (1933 – 2021)
- Michael S. PorderAmerican psychoanalyst (1933–2021)
- Michael ScaifeBritish psychologist
- Michael Schutz (professor)Music psychology professor
- Michael ScrivenAustralian academic philosopher (1928–2023)
- Michael ShadlenAmerican neuroscientist and neurologist (born 1959)
- Michael Shepherd (psychiatrist)British psychiatrist (1923–1995)
- Michael SiegalMichael Siegal, PhD, DSc (March 30, 1950 – February 20, 2012) was a developmental psycholo
- Michael Studdert-KennedyAmerican psycholinguist (1927–2017)
- Michael TelchAmerican psychologist
- Michael WelnerAmerican forensic psychiatrist and writer (born 1964)
- Michel SabourinCanadian academic
- Michelangelo phenomenonPsychological interpersonal process
- Michèle BowleySwiss health psychologist
- Michele J. GelfandAmerican cultural psychologist
- Michelene ChiCognitive scientist
- Michelle CraskeMichelle G. Craske AO (born 1959) is an Australian academic who is currently serving as Pr
- Michelle DawsonCanadian autism researcher
- Michelle DrouinAmerican researcher
- Michelle FineAmerican academic
- Michelle LucianoScottish psychologist
- Michelle RemembersMichelle Remembers is a discredited 1980 book co-written by Canadian psychiatrist Lawrence
- Michelle SegarAmerican academic
- Michelle WhittenAmerican nonprofit executive
- Micki PistoriusSouth African psychologist and author
- MicroexpressionInnate result of emotional responses
- MicrolearningEducation with small learning units
- MicromanagementExcessive attention or control by a manager
- Micromastery2017 book by Robert Twigger
- Midlife crisisTransition of identity and self-confidence
- Mieko KamiyaJapanese physician and psychiatrist (1914–1979)
- Might makes rightView that morality is, or ought to be, determined by those in power
- Mihai RaleaRomanian social scientist, journalist and politician (1896–1964)
- Mihaly CsikszentmihalyiHungarian-American psychologist (1934–2021)
- Mike NichollsAustralian experimental psychology researcher
- Mikkel Borch-JacobsenFrench philosopher (born 1951)
- Mikki HeblAmerican psychologist
- Mildred B. MitchellAmerican psychologist (1903–1983)
- Mildred Edie BradyAmerican journalist
- Mildred NewmanAmerican psychologist
- Milenko VlajkovPsychologist and meditation master
- Miles HewstoneBritish social psychologist (born 1956)
- Milicent ShinnMilicent Washburn Shinn (April 15, 1858 – August 13, 1940) was an American writer, journal
- Military bratChildren of military personnel
- Military brat (U.S. subculture)Child of a member of the U.S. armed forces
- Military psychiatryPsychiatrist specialised in treating soldiers
- Military psychologySpecialized field in psychological science
- Millie AlmyAmerican psychologist and early childhood education expert
- Millon Clinical Multiaxial InventoryPsychological assessment tool
- MindTotality of psychological phenomena
- Mind (charity)British mental health charity
- Mind gamesIntellectual competition
- Mind mapDiagram to visually organize information
- Mind-blindnessHypothesis regarding theory of mind in autistic people
- Mind-wanderingExperience of thoughts not remaining on a single topic for a long period of time
- Mindfulness and technologyMultidisciplinary technological movement
- Mindfulness-based cognitive therapyCoupling of mindfulness practices and cognitive behaviour therapy
- Mindfulness-based stress reductionProgram offering mindfulness training
- Mini-SEATests evaluating social and emotional cognition impairment
- Mini–mental state examinationTest to measure cognitive impairment
- Minimally conscious stateDisorder of consciousness
- Minimisation (psychology)Type of deception
- Minister of State for Social CareMinisterial position in the British Government
- Minnesota Multiphasic Personality InventoryStandardized psychometric measure of psychopathology and personality
- Minnie SteckelAmerican educator, psychologist and activist
- Minority influenceForm of social influence
- Minority stressType of stress faced by minority groups
- Mira Oberholzer-GincburgSwiss psychiatrist and psychoanalyst (1887–1949)
- Miranda WolpertBritish clinical psychologist and researcher (born 1962)
- Miriam Delphin-RittmonAmerican clinical psychologist
- Miriam GrossmanAmerican psychiatrist and activist
- Miriam PolsterClinical psycholgist
- Mirjam IndermaurSwiss author
- Mirror stagePsychoanalytic concept
- Mirror therapyTreatment for some kinds of pain
- Mirrored-self misidentificationDelusional belief that one's reflection in the mirror is another person
- MirroringSubconscious imitative behaviour
- Mirta GalesicCroatian-American psychologist
- Mirta González SuárezCosta Rican writer, psychologist (b. 1948)
- MisanthropyGeneral dislike of humanity
- Misattribution of memoryMisidentification during memory recall
- Miscarriage and griefMiscarriage and grief are both an event and subsequent process of grieving that develops i
- Miscarriage and mental disordersMedical condition
- MischiefClass of criminal offense
- MisophoniaDisorder of decreased tolerance to specific sounds
- Misplaced loyaltyLoyalty placed where it is not respected or to an unworthy cause
- Missing letter effectCognitive phenomenon in reading
- Missionary kidChild of missionary parents
- Missy GoldAmerican psychologist and former child actress
- Mistakes Were Made (but Not by Me)2007 non-fiction book by Carol Tavris and Elliot Aronson
- MIT Department of Brain and Cognitive SciencesResearch Department
- Mitch PrinsteinClinical psychology professor and researcher
- Mitchell J. NathanAmerican academic
- Mixed affective stateMental health condition
- Mnemic neglectSelective forgetting
- Mnemonic major systemMnemonic technique for memorizing long strings of numbers
- Mnemonic peg systemMnemonic technique for memorizing long numbers
- MnemonistPerson with the ability to recall large amounts of data
- Mobile CrisisEmergency mental health service
- Mock interviewSimulated job interview for training
- MockeryAct of insulting or making light of a person or other thing
- Models of abnormalityModels of abnormality are general hypotheses as to the nature of psychological abnormaliti
- Models of collaborative taggingDifferent models of collaborative tagging
- Models of deafnessThe three models of deafness are rooted in either social or biological sciences. These are
- Moderation ManagementMutual support group for people with alcohol problems
- Modern Love (podcast)Podcast about love
- Modern Man in Search of a Soul1933 book by Carl Gustav Jung
- Modern psychoanalysisPsychoanalytic technique
- Modes of religiosityThe theory of divergent modes of religiosity (DMR) is intended to explain how religions ar
- Modified Overt Aggression ScaleAssessment tool for aggressive behavior
- Modular Cognition FrameworkThe Modular Cognition Framework (MCF) is an open-ended theoretical framework for research
- Modularity of mindPsychology concept
- Modupe AkinolaAmerican psychologist (born 1974)
- Mogens SchouDanish psychiatrist (1918-2005)
- Molly HarrowerAmerican clinical psychologist
- Mona WeissmarkAmerican clinical and social psychologist
- Money worshipMoney disorder
- Mongolian idiocyObsolete medical term for Down syndrome
- Monica BiernatAmerican social psychologist
- Monica Webb HooperAmerican behavioral scientist and clinical psychologist
- MonolingualismAbility to only speak one language
- MonomaniaMental illness involving an unhealthily intense obsession with one specific thing
- Monomaniac of Envy1822 painting by Théodore Géricault
- MonotropismCognitive strategy in autism
- Monster Study1939 experiment in Davenport, Iowa, US
- Monster under the bedChildhood fear
- Monty FinnistonSir Harold Montague "Monty" Finniston FRS FRSE (15 August 1912 – 2 February 1991) was a Sc
- Mood (psychology)Relatively long lasting emotional, internal and subjective state
- Mood Disorder QuestionnaireSelf-report questionnaire for bipolar disorder
- Mood swingExtreme or rapid change in mood
- Mood trackingPsychological technique
- Mood-dependent memoryMood dependence is the facilitation of memory when mood at retrieval is identical to the m
- Mooli LahadIsraeli psychologist and psychotrauma specialist
- MoonbatAmerican pejorative political epithet
- Mooney Face TestCognitive test
- MooningDisplay of the buttocks
- Moral blindnessTemporary inability to see the ethical aspects of decisions
- Moral disengagementConviction that ethical standards do not apply to oneself
- Moral emotionsEmotions concerning morality
- Moral foundations theoryTheory in social psychology
- Moral identityConcept in moral psychology
- Moral insanityObsolete term for type of mental disorder
- Moral intelligenceCapacity to understand right from wrong
- Moral reasoningStudy in psychology that overlaps with moral philosophy
- Moral responsibilityConcept in ethics
- Moral suasionPersuasion technique
- Moral treatmentMental disorder intervention
- Morbid loveMorbid love (French: l’amour morbide) was a term used in psychiatric texts of the late nin
- Mordechai GeldmanIsraeli writer, artist, and psychologist (1946–2021)
- MorgellonsMorgellons () is the informal name of a self-diagnosed, scientifically unsubstantiated ski
- Morio KitaMorio Kita (北 杜夫, Kita Morio) was the pen name of Sokichi Saitō (斎藤 宗吉, Saitō Sōkichi; 1 M
- Moritz Wilhelm DrobischGerman mathematician, logician, psychologist and philosopher
- Morningness–eveningness questionnaireSelf-assessment on circadian rhythm
- Moron (psychology)Old term for mild intellectual disability
- Morphological analysis (problem-solving)Exploration of possible solutions
- Morphological psychologyMorphological psychology claims to be one of the most recent full psychology theories. It
- Morris water navigation taskTask used in experiments to measure spatial learning and memory
- Morton BardAmerican psychologist
- Morton PrinceAmerican physician (1854–1929)
- Moshe LangAustralian family therapist, clinical psychologist and author
- Motherhood constellationPsychological changes during pregnancy
- Motion perceptionInferring the speed and direction of objects
- Motivated forgettingPsychological defense mechanism
- Motivated reasoningProcessing personal/social information
- Motivated tacticianSocial psychology description
- MotivationInner state causing goal-directed behavior
- Motivation and EmotionAcademic journal
- Motivation and Personality1954 book by Abraham Maslow
- Motivation crowding theoryTheory in psychology and microeconomics
- Motivational enhancement therapyType of therapy used to treat substance use disorders
- Motivational intensityIn psychology, the term valence is used to describe stimuli, events, situations and emotio
- Motor cognitionThe concept of motor cognition grasps the notion that cognition is embodied in action, and
- Motor learningMovements that reflect nervous system changes
- Motor programAbstract representation of movement
- Motor skillLearned ability involving specific body movements for a task
- MourningSorrow in response to grief
- Mourning and Melancholia1917 work by Sigmund Freud
- Mouza al-MalkiQatari writer and psychologist
- Movement disorderMedical condition
- Moving the goalpostsMetaphor originating from goal sports
- Mozart effectPsychological effects of listening to Mozart's music
- Mudoko dakoA mudoko dako (also known as mudoko daka or dano mulokere) is an effeminate male who is co
- MullingstorpPsychotherapy institute in Sweden
- Multicultural counselingMulticultural counseling is a type of counseling where the therapist addresses the struggl
- Multifactor Leadership QuestionnairePsychology test by Bruce Avolio
- Multimodal therapyApproach to psychotherapy that addresses seven dimensions of the patient
- Multiple abstract variance analysisStatistical technique
- Multiple audience dilemmaThe multiple audience dilemma is a communication theory that describes what happens when a
- Multiple complex developmental disorderMedical condition
- Multiple drafts modelPhysicalist theory of consciousness based upon cognitivism
- Multiple Equivalent Simultaneous OffersNegotiation strategy
- Multiple impact therapyPsychotherapy technique
- Multiple NaturesMultiple Natures is a personality-type framework developed by renowned American educator a
- Multiple Sleep Latency TestMedical intervention
- MultipotentialityAbility to excel in two or more different fields
- Multiscale Dissociation InventoryDiagnostic assessment
- Multisystem developmental disorderAlternative diagnosis to autism
- Multiteam systemMultiteam systems (MTSs) are "two or more teams that interface directly and interdependent
- Murder of Kitty Genovese1964 murder in New York City
- Murder of Michele LeAnn Morgan1961 death in Illinois
- Murder of Riccardo Rasman2006 murder in Trieste, Italy
- Murder of Xie Tianqin2015 murder in Fuzhou, Fujian, China
- Murder of Yang Xin2009 murder of Chinese student at Virginia Tech
- Murray BowenAmerican physician, family therapist, and academic (1913-1990)
- Murray's system of needsPart of Henry Murray's theory of personality
- Muscle dysmorphiaSubtype of the body dysmorphic disorder
- Muscle memoryConsolidating a motor task into memory through repetition
- Museum fatigueState of fatigue caused by museum exhibits
- Music and emotionResearch into music and emotion seeks to understand the psychological relationship between
- Music and sleepListening of music to improve sleep quality
- Music in psychological operationsPsychological warfare and torture technique
- Music therapyHealth profession
- Music-related memoryMusical ability
- Musical escapismPsychological and cognitive detachment via music
- Musical hallucinationsMusical hallucinations (also known as auditory hallucinations, auditory Charles Bonnet Syn
- Mustafa ISultan of the Ottoman Empire (r. 1617–1618, 1622–1623)
- Muted group theoryTheory of communication about marginalized groups
- Mutilation of "Snippy" the horse1967 death of a horse in Colorado, US
- Myers–Briggs Type IndicatorPseudoscientific personality questionnaire
- MyrmecophobiaSpecific phobia towards ants or hatred for them
- Myrtle Byram McGrawDevelopmental psychologist (1899-1988)
- MysophobiaPathological fear of contamination and germs
- Mythopoeic thoughtHypothetical stage of human thought