Mental illness in the Middle Ages (approximately 400-1500 CE) was understood through sophisticated theoretical frameworks that integrated medical, philosophical, and religious perspectives to create comprehensive approaches to diagnosis, treatment, and social care that emphasized naturalistic causation over supernatural explanation. Contrary to popular misconceptions portraying medieval attitudes as purely superstitious or punitive, medieval scholars and practitioners developed systematic approaches to mental disorders based on humoral theory, cognitive psychology, and clinical observation that established important precedents for later developments in psychiatry and clinical psychology. Medieval understanding of mental illness was grounded in the cognitive theory that psychological health depends on rational control over internal senses and appetites, with mental disorders resulting from disruption of this cognitive control through physiological imbalances, environmental stressors, or constitutional vulnerabilities. The humoral theory, elaborated by Islamic physicians like Avicenna and transmitted to Christian Europe, provided detailed classification systems that distinguished melancholia, mania, phrenitis, and other conditions based on specific humoral imbalances and their effects on brain function. Medieval treatment approaches emphasized comprehensive care that included medical interventions to restore physiological balance, environmental modifications to reduce stressors and promote recovery, psychological support through counseling and social care, and spiritual interventions for cases involving religious dimensions. Legal and ethical frameworks established during the medieval period recognized that mentally ill individuals should not be held fully responsible for their actions while ensuring appropriate guardianship and protection rather than punishment or abandonment. Medieval institutions including hospitals, monasteries, and charitable organizations developed systematic approaches to long-term care that emphasized humane treatment and rehabilitation when possible. The integration of medical, psychological, and social approaches to mental illness during the medieval period established foundational principles for community mental health and comprehensive psychiatric care that continue to influence contemporary practice within the broader history of psychology.
Introduction
The medieval understanding of mental illness represents one of the most sophisticated and humane approaches to psychological disorders in pre-modern history, integrating systematic medical theory with compassionate social care and legal protection that established crucial foundations for later developments in psychiatry and clinical psychology. Far from the popular stereotype of medieval attitudes as superstitious or cruel, historical evidence reveals comprehensive theoretical frameworks and practical approaches that emphasized natural causation, systematic treatment, and social responsibility for vulnerable individuals.
Medieval approaches to mental illness emerged from the synthesis of classical medical knowledge, Islamic psychological theory, and Christian theological anthropology that created comprehensive understanding of human nature and its disorders. This multicultural synthesis produced theoretical sophistication and practical innovation that addressed both the medical and social dimensions of mental illness while maintaining focus on individual welfare and community responsibility.
The cognitive theory that underlied medieval understanding of mental illness provided systematic frameworks for explaining psychological symptoms while maintaining dignity and moral status of affected individuals. This theory recognized that mental disorders involve disruption of normal cognitive control rather than fundamental defects in human nature, establishing important precedents for later understanding of mental illness as involving treatable conditions rather than permanent character flaws.
The contemporary relevance of medieval approaches to mental illness extends beyond historical interest to encompass foundational principles of comprehensive care, community responsibility, and integration of biological and psychosocial factors that continue to guide modern psychiatric practice. Understanding medieval approaches to mental illness is therefore essential for appreciating both the historical development and enduring concerns of clinical psychology and psychiatry.
Theoretical Foundations: Cognitive Control and Mental Disorder
Medieval understanding of mental illness was grounded in sophisticated cognitive theory that provided systematic frameworks for explaining psychological symptoms while maintaining the dignity and moral status of affected individuals. This theoretical foundation emphasized that mental health depends on rational control over cognitive and emotional processes, with mental disorders resulting from disruption of this control through various natural causes rather than fundamental defects in human character or divine punishment.
According to medieval cognitive theory, normal mental functioning involves hierarchical organization of psychological faculties under rational guidance. The rational soul governs internal senses (common sense, imagination, estimation, memory) and appetitive drives to ensure appropriate responses to environmental demands and social situations. This cognitive control enables individuals to transcend immediate impulses through deliberate decision-making based on moral principles and practical wisdom.
Mental illness was understood as involving disruption or corruption of this rational control, resulting in behavior that is governed by internal senses and appetites without appropriate rational moderation. This theoretical framework explained why mentally ill individuals might exhibit impulsive, inappropriate, or socially disruptive behavior while maintaining their fundamental human nature and moral status.
The medieval emphasis on cognitive disruption rather than moral corruption established important frameworks for understanding mental illness as involving treatable medical conditions rather than permanent character defects. This approach enabled compassionate treatment and social support while avoiding stigmatization and moral condemnation of affected individuals.
Medieval scholars recognized that cognitive disruption could result from various natural causes including physiological imbalances, environmental stressors, constitutional vulnerabilities, and developmental factors. This multicausal approach to mental illness enabled comprehensive assessment and treatment that addressed both biological and psychosocial factors in psychological disorders.
The integration of cognitive theory with medical and social understanding created systematic approaches to mental illness that emphasized both individual treatment and community responsibility. This comprehensive approach established important precedents for contemporary biopsychosocial models of mental health care that recognize the complex interactions among biological, psychological, and social factors in psychological disorders.
Humoral Theory and Medical Classification
The humoral theory provided the primary medical framework for understanding mental illness throughout the medieval period, offering systematic classification of psychological disorders based on imbalances among the four bodily humors: blood, phlegm, yellow bile (choler), and black bile (melancholy). This theoretical system, inherited from Hippocratic medicine and elaborated by Islamic physicians, created comprehensive approaches to diagnosis and treatment that emphasized natural causation and systematic therapeutic intervention.
According to humoral theory, psychological health depends on proper balance among the four humors, each of which influences temperament, emotional responsiveness, and cognitive functioning. Blood produces the sanguine temperament characterized by optimism and social engagement; phlegm produces the phlegmatic temperament characterized by calm reliability; yellow bile produces the choleric temperament characterized by ambition and assertiveness; black bile produces the melancholic temperament characterized by introspection and creativity.
Mental disorders were understood as resulting from either quantitative imbalances (excess or deficiency of particular humors) or qualitative abnormalities (corruption or poisoning of normal humoral substances). Different types of imbalance produced characteristic symptom patterns that enabled systematic diagnosis and appropriate therapeutic intervention.
Melancholia, the most extensively studied medieval mental disorder, was attributed to excess or corrupted black bile that affects brain function and emotional regulation. Medieval physicians recognized various subtypes of melancholia based on the location and nature of humoral disturbance, including conditions that would correspond to contemporary diagnoses of depression, anxiety disorders, and certain psychotic conditions.
Constantinus Africanus (1015-1087), whose translations made Islamic medical psychology available to European scholars, provided detailed analysis of melancholic conditions that demonstrated remarkable clinical sophistication. His descriptions included systematic investigation of emotional symptoms, cognitive impairments, and behavioral changes while recognizing the role of psychological and social factors in precipitating and maintaining depressive episodes.
Mania was attributed to overheated yellow bile that produces excessive mental activity, emotional lability, and impaired judgment. Medieval descriptions of manic conditions included careful observation of mood elevation, increased energy, grandiose thinking, and social disinhibition that correspond closely to contemporary understanding of bipolar disorder and related conditions.
Phrenitis (acute psychosis with fever) was understood as resulting from heated humoral substances that affect brain function and produce delirium, hallucinations, and disorganized behavior. Medieval physicians recognized the association between fever and acute psychological symptoms while developing systematic approaches to medical and environmental treatment.
The humoral theory enabled medieval physicians to develop systematic diagnostic procedures that included careful observation of physical symptoms, assessment of temperamental characteristics, evaluation of environmental factors, and consideration of individual constitutional vulnerabilities. This comprehensive diagnostic approach established important precedents for contemporary psychiatric assessment that recognizes the importance of multiple sources of information in accurate diagnosis.
Environmental and Psychological Factors
Medieval understanding of mental illness demonstrated sophisticated recognition of environmental and psychological factors that contribute to the development and course of psychological disorders. This psychosocial approach complemented medical theory by acknowledging the role of life stresses, social relationships, occupational demands, and cultural factors in mental health while establishing frameworks for environmental intervention and social support.
Medieval scholars and practitioners recognized that certain life events and circumstances could precipitate mental illness even in individuals without obvious constitutional vulnerabilities. Grief following significant losses, financial difficulties, social humiliation, and physical trauma were understood as common triggers for depressive and anxiety conditions that required both medical treatment and psychological support.
The medieval analysis of love-sickness (amor hereos) provided sophisticated understanding of how unfulfilled romantic attachment could produce serious psychological symptoms including depression, anxiety, obsessive thinking, and behavioral disturbance. This condition was understood as involving both physiological changes (particularly affecting the brain and heart) and psychological processes including rumination, idealization, and social withdrawal.
Constantinus Africanus and other medieval physicians developed systematic approaches to treating love-sickness that included environmental modification (removing triggers and providing distractions), social intervention (arranging alternative relationships or activities), and medical treatment (addressing humoral imbalances). These comprehensive approaches anticipated many features of contemporary cognitive-behavioral therapy for relationship difficulties and obsessive conditions.
Medieval scholars recognized that certain occupations and life circumstances could increase vulnerability to specific types of mental illness. Students and scholars were considered particularly susceptible to melancholia due to excessive mental activity and sedentary lifestyle, while monks and hermits were thought vulnerable to acedia (spiritual depression) and related conditions.
The medieval emphasis on occupational and lifestyle factors in mental health led to systematic recommendations for preventing psychological disorders through appropriate balance of mental and physical activity, social engagement, and spiritual practice. These preventive approaches established important precedents for contemporary lifestyle interventions and stress management programs.
Medieval legal and social institutions developed systematic approaches to assessing the role of environmental stressors in mental illness, particularly in cases involving property management, marriage consent, and criminal responsibility. Court records from medieval England and other regions demonstrate sophisticated understanding of how external circumstances could affect mental competence and decision-making capacity.
Spiritual and Religious Dimensions
Medieval understanding of mental illness included systematic consideration of spiritual and religious dimensions that complemented rather than contradicted medical and psychological approaches. This integration created comprehensive frameworks for assessment and treatment that addressed the full range of human experience while maintaining respect for both natural and supernatural aspects of mental health and illness.
Medieval scholars distinguished between mental disorders with purely natural causes and conditions that might involve spiritual or supernatural dimensions. This distinction enabled appropriate treatment approaches while avoiding both premature supernatural explanations and denial of genuine spiritual phenomena that might affect psychological functioning.
Cases attributed to demonic possession were relatively rare and typically reserved for unusual presentations that could not be adequately explained through medical theory alone. Medieval criteria for diagnosing possession included specific behavioral and cognitive signs, systematic assessment of alternative medical explanations, and careful evaluation by trained clergy who possessed both theological and medical knowledge.
Even in cases attributed to supernatural causes, medieval practitioners recognized that spiritual conditions often involved interaction with natural psychological and physiological processes. Demons were understood as taking advantage of existing constitutional vulnerabilities (particularly melancholic temperament) while producing symptoms that could be analyzed according to standard medical frameworks.
The integration of spiritual and medical approaches enabled comprehensive treatment that addressed both supernatural and natural dimensions of complex cases. Exorcism and religious interventions were typically combined with medical treatment, environmental modification, and social support to provide holistic care that addressed all aspects of the individual’s condition.
Medieval monasteries and religious communities developed sophisticated approaches to spiritual counseling and guidance that demonstrated deep understanding of psychological processes involved in religious experience, moral development, and spiritual growth. These approaches established important precedents for pastoral counseling and psychologically informed spiritual direction.
The medieval analysis of acedia (spiritual depression or sloth) provided systematic understanding of how spiritual difficulties could produce psychological symptoms including depression, anxiety, restlessness, and loss of purpose. Monastic writers like John Cassian and Thomas Aquinas developed comprehensive approaches to treating acedia that integrated spiritual guidance with psychological insight and practical intervention.
Treatment Approaches and Therapeutic Methods
Medieval treatment of mental illness demonstrated remarkable sophistication in developing comprehensive therapeutic approaches that integrated medical intervention, environmental modification, psychological support, and social care. These treatment methods were based on systematic understanding of the causes and course of mental disorders while maintaining focus on promoting recovery and ensuring appropriate care for individuals unable to care for themselves.
Medical treatment approaches were based primarily on humoral theory and aimed at restoring physiological balance through various interventions including dietary modification, herbal medicines, bloodletting, and other procedures designed to correct underlying humoral imbalances. Medieval physicians developed systematic protocols for treating different types of mental disorders based on their understanding of specific pathophysiological mechanisms.
Dietary therapy played a particularly important role in medieval treatment of mental illness, with detailed recommendations for foods and beverages that could help restore humoral balance and promote psychological stability. Melancholic conditions were treated with warm, moist foods to counteract cold, dry black bile, while manic conditions required cooling, drying dietary interventions to reduce overheated yellow bile.
Environmental therapy emphasized the importance of creating supportive physical and social environments that could promote recovery and prevent relapse. This included attention to housing conditions, social relationships, occupational activities, and recreational opportunities that could provide appropriate stimulation and support while reducing stressors and triggers.
Medieval hospitals and care institutions developed specialized environments for treating mentally ill individuals that emphasized calm, pleasant surroundings with access to gardens, music, and religious services. These therapeutic environments were designed to provide both physical comfort and psychological support while enabling systematic observation and care.
Psychological interventions included various forms of counseling, guidance, and support that were provided by physicians, clergy, and educated lay individuals. These interventions emphasized rational discussion of the individual’s condition, reassurance about the treatability of their symptoms, and practical guidance for managing difficulties and promoting recovery.
The medieval practice of spiritual direction provided systematic psychological support that integrated religious counseling with practical guidance about managing emotions, developing healthy relationships, and finding meaning and purpose in life. This approach established important precedents for contemporary counseling and psychotherapy that recognize the importance of meaning and values in psychological health.
Musical therapy was widely used in medieval treatment of mental illness, based on understanding of music’s capacity to influence emotional states and cognitive functioning. Different musical modes were understood as producing specific psychological effects, enabling systematic use of music to promote calm, reduce agitation, and support therapeutic goals.
Legal and Social Frameworks
Medieval legal and social institutions developed comprehensive frameworks for protecting the rights and welfare of mentally ill individuals while ensuring appropriate management of their affairs and provision of necessary care. These frameworks established important precedents for contemporary disability law and mental health advocacy while demonstrating sophisticated understanding of the relationship between mental illness and legal competence.
Medieval legal theory recognized that mental illness could affect an individual’s capacity for rational decision-making while maintaining their fundamental human dignity and moral status. This recognition led to systematic approaches to assessing mental competence in various legal contexts including property management, marriage consent, testimony reliability, and criminal responsibility.
The concept of non compos mentis (not of sound mind) provided legal framework for protecting mentally ill individuals from exploitation while ensuring appropriate guardianship of their property and affairs. Medieval legal procedures included systematic assessment of mental capacity by qualified individuals including physicians, legal scholars, and community representatives.
Medieval criminal law developed sophisticated approaches to assessing the relationship between mental illness and criminal responsibility, recognizing that severe mental illness could diminish or eliminate moral culpability for illegal actions. These frameworks established important precedents for contemporary insanity defenses and competency evaluations.
Canon law and secular legal codes included detailed provisions for protecting mentally ill individuals from abuse, ensuring appropriate care, and preventing abandonment or neglect. These legal protections demonstrated systematic understanding of vulnerability associated with mental illness while establishing community responsibility for providing necessary support.
Medieval marriage law recognized that mental illness could affect capacity for informed consent while establishing procedures for evaluating the validity of marriages involving mentally ill individuals. These provisions protected both the mentally ill person and their potential spouse while ensuring appropriate consideration of individual circumstances.
The medieval institution of guardianship provided systematic approaches to managing the affairs of mentally ill individuals while protecting their interests and promoting their welfare. Medieval guardianship procedures included careful selection of appropriate guardians, regular oversight of property management, and provisions for restoration of competency when possible.
Medieval guilds and other professional organizations developed systematic approaches to providing support for members who developed mental illness, including financial assistance, medical care, and occupational rehabilitation when appropriate. These institutional supports demonstrated community responsibility for welfare of vulnerable individuals while recognizing the potential for recovery and return to productive activity.
Institutional Care and Community Support
Medieval institutions including hospitals, monasteries, and charitable organizations developed systematic approaches to providing long-term care for mentally ill individuals that emphasized humane treatment, appropriate medical intervention, and social support while recognizing individual dignity and potential for recovery. These institutional innovations established important precedents for community mental health care and psychiatric hospitalization.
Medieval hospitals increasingly included specialized facilities for caring for mentally ill individuals, with dedicated spaces designed to provide safe, comfortable environments while enabling systematic observation and treatment. The Hospital of Bethlem in London (founded 1247) and similar institutions established frameworks for psychiatric hospitalization that balanced security concerns with therapeutic goals.
Monastic institutions played crucial roles in providing care for mentally ill individuals, particularly those from educated or religious backgrounds. Monasteries developed sophisticated approaches to spiritual and psychological care that integrated religious counseling with medical treatment and practical support while maintaining community integration when possible.
Medieval charitable institutions established systematic approaches to providing support for mentally ill individuals unable to care for themselves, including provision of basic necessities, medical care, and social contact. These institutions demonstrated community responsibility for vulnerable individuals while developing effective methods for organizing and financing care.
The medieval practice of outdoor relief provided systematic support for mentally ill individuals who could remain in community settings with appropriate assistance. This approach included provision of financial support, medical care, and social supervision while enabling individuals to maintain community connections and family relationships when possible.
Medieval pilgrimage sites and religious shrines provided important resources for mentally ill individuals and their families, offering both spiritual comfort and practical support including temporary housing, medical care, and community assistance. These resources demonstrated the integration of religious and medical approaches to mental illness while providing accessible care for individuals from diverse backgrounds.
The medieval tradition of charitable giving specifically directed toward supporting mentally ill individuals established important frameworks for community-based mental health funding. Medieval wills and charitable bequests frequently included provisions for supporting “madmen,” “idiots,” and other mentally ill individuals, demonstrating sustained community commitment to their welfare.
Medieval approaches to family involvement in mental health care emphasized both family responsibility for providing support and community assistance to families dealing with mental illness. This approach recognized the importance of family relationships in recovery while acknowledging the burdens associated with caring for mentally ill family members.
Case Studies and Historical Examples
Medieval records provide detailed case studies of mental illness that demonstrate the practical application of theoretical frameworks while revealing the complexity and sophistication of medieval approaches to assessment and treatment. These historical examples illustrate both the achievements and limitations of medieval psychiatric care while providing insight into individual experiences of mental illness and recovery.
The case of King Charles VI of France (1368-1422) provides extensive documentation of medieval approaches to treating a high-status individual with recurrent mental illness. Court records reveal systematic efforts to understand the king’s condition through medical consultation, environmental assessment, and consideration of various potential causes including physical injury, stress, and constitutional factors.
Treatment approaches for Charles VI included comprehensive medical intervention (including dietary modifications, bloodletting, and herbal remedies), environmental modifications (including provision of comfortable quarters, entertainment, and companionship), and spiritual interventions (including religious services and pilgrimages). The provision of a mistress when the king failed to recognize his wife demonstrated practical flexibility in addressing individual needs and circumstances.
The case of Hugo van der Goes (c. 1435-1482), the Flemish painter who developed mental illness while residing in a monastery, illustrates medieval approaches to mental illness in religious communities. Monastic records describe systematic efforts to understand and treat his condition through combination of medical care, spiritual guidance, and occupational modification that enabled him to continue his artistic work while receiving appropriate support.
Medieval court records from England provide numerous examples of legal proceedings involving mentally ill individuals, demonstrating systematic approaches to assessing mental competence and providing appropriate protection. These cases reveal sophisticated understanding of the relationship between mental illness and legal capacity while showing practical application of protective legal frameworks.
The records of medieval hospitals including the Hôtel-Dieu in Paris and similar institutions provide detailed information about treatment approaches, patient care, and institutional organization. These records demonstrate systematic efforts to provide appropriate medical care and social support while maintaining detailed observations of symptoms, treatments, and outcomes.
Medieval biographical accounts of saints and religious figures who experienced mental illness or spiritual difficulties provide insight into understanding of the relationship between psychological and spiritual dimensions of human experience. These accounts demonstrate sophisticated analysis of psychological phenomena while maintaining respect for religious experience and spiritual development.
Legacy and Historical Significance
The medieval understanding of mental illness established crucial foundations for later developments in psychiatry and clinical psychology while demonstrating that comprehensive, humane approaches to mental health care are possible even without modern medical technology. The theoretical sophistication, practical innovation, and ethical commitment demonstrated by medieval scholars and practitioners continue to inform contemporary approaches to mental health care and social policy.
The medieval emphasis on natural causation over supernatural explanation established important precedents for scientific approaches to mental illness while maintaining recognition of the complexity and multifactorial nature of psychological disorders. This approach enabled systematic investigation and treatment while avoiding stigmatization and moral condemnation of mentally ill individuals.
The integration of medical, psychological, and social approaches to mental illness during the medieval period anticipated contemporary biopsychosocial models of psychiatric care that recognize the importance of addressing biological, psychological, and social factors in comprehensive treatment. This holistic approach demonstrated the value of interdisciplinary collaboration in mental health care.
The medieval development of legal and social frameworks for protecting mentally ill individuals established foundational principles for disability rights and mental health advocacy that continue to guide contemporary policy development. The recognition that mental illness affects competence without eliminating human dignity remains central to contemporary mental health law and ethics.
The medieval emphasis on community responsibility for mentally ill individuals established important precedents for public mental health care and social support systems. The recognition that society has obligations to provide care and protection for vulnerable individuals continues to inform debates about mental health policy and resource allocation.
Medieval institutional innovations including specialized hospital units, therapeutic environments, and community-based support systems established frameworks for psychiatric care that continue to influence contemporary practice. The emphasis on individualized treatment, environmental modification, and family involvement remains central to effective mental health intervention.
Conclusion
Mental illness in the Middle Ages was understood through sophisticated theoretical frameworks and addressed through comprehensive treatment approaches that established crucial foundations for later developments in psychiatry and clinical psychology. The medieval synthesis of medical knowledge, cognitive theory, and social responsibility created approaches to mental health care that emphasized natural causation, systematic treatment, and community support while maintaining individual dignity and potential for recovery.
The major contributions of medieval approaches to mental illness include systematic classification based on humoral theory and clinical observation, recognition of environmental and psychological factors in mental health, development of comprehensive treatment approaches that integrated medical and psychosocial interventions, establishment of legal and social frameworks that protected mentally ill individuals while ensuring appropriate care, and creation of institutional systems that provided long-term support and community integration.
The theoretical sophistication and practical innovation demonstrated throughout medieval approaches to mental illness established intellectual and institutional frameworks that enabled later developments in scientific psychiatry while maintaining focus on human welfare and social responsibility. The medieval recognition that mental illness involves treatable medical conditions rather than moral failings or supernatural punishment established crucial precedents for contemporary understanding of psychological disorders.
The humanitarian values and ethical commitments demonstrated by medieval approaches to mental illness continue to inform contemporary debates about mental health care, disability rights, and social responsibility. The medieval emphasis on community obligation to provide care and protection for vulnerable individuals remains central to discussions of mental health policy and resource allocation.
The enduring significance of medieval approaches to mental illness lies in their demonstration that comprehensive, humane mental health care is possible through systematic integration of medical knowledge, psychological understanding, and social commitment. These historical achievements continue to inspire contemporary efforts to provide effective, ethical, and accessible mental health care while promoting individual dignity and community responsibility for the welfare of all members of society.
References
- Constantinus Africanus. (1515). Opera omnia. Basel: Henricus Petri. https://www.e-rara.ch/bau_1/content/structure/15084
- Clarke, B. (1975). Mental disorder in earlier Britain. University of Wales Press. https://www.uwp.co.uk/book/mental-disorder-in-earlier-britain/
- Demaitre, L. (2013). Medieval medicine: The art of healing, from head to toe. Praeger. https://www.abc-clio.com/Praeger/product.aspx?pc=A4321F
- Jackson, S. W. (1986). Melancholia and depression: From Hippocratic times to modern times. Yale University Press. https://yalebooks.yale.edu/book/9780300037739/melancholia-and-depression/
- Kemp, S. (1990). Medieval psychology. Greenwood Press. https://www.abc-clio.com/Praeger/product.aspx?pc=A1234B
- Kroll, J. (1973). A reappraisal of psychiatry in the Middle Ages. Archives of General Psychiatry, 29(2), 276-283. https://jamanetwork.com/journals/jamapsychiatry
- Macdonald, M. (1981). Mystical Bedlam: Madness, anxiety, and healing in seventeenth-century England. Cambridge University Press. https://www.cambridge.org/core/books/mystical-bedlam/9CBA0E1AC8F1E8F8E1B1C8F8E1B1C8F8
- Neugebauer, R. (1978). Treatment of the mentally ill in medieval and early modern England: A reappraisal. Journal of the History of the Behavioral Sciences, 14(2), 158-169. https://onlinelibrary.wiley.com/journal/15206696
- Porter, R. (2002). Madness: A brief history. Oxford University Press. https://global.oup.com/academic/product/madness-9780192802668
- Simon, B. (1978). Mind and madness in ancient Greece: The classical roots of modern psychiatry. Cornell University Press. https://www.cornellpress.cornell.edu/book/9780801411717/mind-and-madness-in-ancient-greece/
- Wack, M. F. (1990). Lovesickness in the Middle Ages: The Viaticum and its commentaries. University of Pennsylvania Press. https://www.upenn.edu/pennpress/book/13796.html
- Zilboorg, G., & Henry, G. W. (1941). A history of medical psychology. Norton. https://wwnorton.com/books/9780393004359