Shamans are ritual specialists found across cultures on every inhabited continent, typically recognized by their ability to enter altered states of consciousness and serve as intermediaries between the human community and the spirit world. The word itself traces back to the Manchu-Tungus languages of northern Asia, but the practices associated with shamanism are far older and far more geographically widespread than any single linguistic tradition. What makes shamanism so unusual as a subject of study is that it resists easy categorization: it sits at the intersection of religion, medicine, ecology, politics, and neuroscience, and the research touching on it is correspondingly scattered and surprising.
Where the Word Comes From
The English word “shaman” entered European languages through Russian accounts of Siberian indigenous peoples, but its deeper roots have been debated for over a century. A linguistic analysis based on historical Chinese documents and Manchu-Tungus ethnic chronicles argues that the term originated with the Jurchen people of ancient northern China and was transmitted through generations of their Manchu-Tungus descendants. The root word, “sar,” means “knowing” or “understanding” in that language family, making “shaman” essentially translate to “a wise person who knows everything.”1Sibirica. An Investigation into the Origin of the Term “Shaman” That etymology is revealing because it frames the shaman not primarily as a mystic or a priest but as a knowledge specialist, someone the community turns to because they are understood to perceive things others cannot.
The term has since been applied far beyond Siberia. Anthropologists in the twentieth century adopted “shaman” as a cross-cultural label for ritual healers in Indigenous communities from South America to Southeast Asia to sub-Saharan Africa. This broad usage has drawn criticism: some scholars argue it flattens enormous cultural differences under a single Western-imposed category, while others maintain that the cross-cultural parallels in practice and social role are real enough to justify a shared term. Both sides have a point, and most contemporary researchers try to use “shaman” with explicit reference to local context rather than as a universal catchall.
How Old Is Shamanic Practice
The archaeological record suggests that shamanic roles are among the oldest specialized social positions in human societies. The most striking single piece of evidence comes from the Natufian cave site of Hilazon Tachtit in Israel, where researchers uncovered the carefully constructed grave of a petite, elderly, disabled woman dating to roughly 12,000 years ago. Her burial was accompanied by exceptional offerings: fifty complete tortoise shells, select body parts of a wild boar, an eagle, a cow, a leopard, two martens, and a complete human foot. The elaborate interment rituals and the unusual grave construction led the excavation team to identify her as a shaman, one of the earliest known from the archaeological record.2PubMed Central. A 12,000-year-old Shaman burial from the southern Levant (Israel)
What stands out about this burial is not just its age but what it implies about social complexity. The Natufian period marks the transition from mobile foraging to settled village life in the Near East, and the existence of an elaborate shaman burial suggests that specialized ritual roles emerged alongside, or perhaps in response to, the social tensions of newly sedentary living. A broader cross-cultural model of religious evolution identifies shamanistic healers who use altered states of consciousness in healing rituals as a cultural universal, present in the most basic forms of human social organization and persisting even as societies later developed priesthoods and more hierarchical religious structures.3SpringerLink (Journal of Archaeological Method and Theory). An Ethnological Analogy and Biogenetic Model for Interpretation of Religion and Ritual in the Past
What Shamans Do
Despite enormous variation across cultures, most shamanic traditions share a core set of practices: entering an altered state of consciousness (often called trance or “journeying”), communicating with spirits or other non-ordinary entities, and returning with information or power that is applied to heal the sick, resolve social disputes, ensure successful hunts, or manage the group’s relationship with the natural world. The techniques for reaching trance vary, but rhythmic percussion, especially drumming, is the most widespread.
The drum itself is far more than background music. In Siberian traditions, shamanic drums are membrane drums in tambourine form, with shapes varying by ethnic group: oval among the Saami, Yakut, and Tungus peoples, round among the Ostyak and Altaians, and small and round among the Chukchee and Eskimo. The drum’s function is directly tied to inducing and sustaining the shamanic trance state; it is, as one ethnographic study puts it, “primarily an instrument of excitation.”4ResearchGate / Scripta Instituti Donneriani Aboensis. The drum in Shamanism: some reflections In many traditions, the drum is also considered a living entity in its own right, with the animal whose skin forms its membrane understood as a spirit helper.
From an evolutionary perspective, shamanic rituals likely expanded on primate community bonding behaviors, including emotional vocalizations and rhythmic group activities that served as social signaling and communication processes.5Journal for the Study of Religion, Nature and Culture. Shamanism and the Origins of Spirituality and Ritual Healing This is consistent with the observation that shamanism appears to increase social group cohesion, making it functionally distinct from other forms of religious practice.6PubMed Central. The social functions of shamanism In other words, even if one sets aside questions about spirits entirely, the communal rituals that surround shamanic practice serve a concrete social purpose: they bind groups together.
What Happens in the Brain During Trance
Shamanic trance has been studied with modern neuroimaging and EEG technology, and the results are genuinely interesting. A study comparing experienced shamanic practitioners to controls found that during drumming-induced trance, practitioners showed increased gamma-band brain activity that correlated with elementary visual alterations, along with changes in connectivity patterns in the alpha and beta frequency bands. Practitioners also showed decreased neural signal diversity in the gamma band during drumming, which inversely correlated with a quality the researchers called “insightfulness.” The researchers concluded that shamanic trance and psychedelic drug-induced states share some overlapping subjective features but are neurologically distinct states of consciousness, each producing unique patterns of brain activity.7PubMed Central. Neural Correlates of the Shamanic State of Consciousness
A separate experimental study tested whether repetitive drumming with shamanic instructions produced different physiological responses than the same drumming with simple relaxation instructions, or than instrumental meditation music. All conditions produced a drop in salivary cortisol (a stress hormone), which suggests that the stress-reduction effect is not unique to shamanic drumming. But participants who received shamanic instructions alongside the drumming reported specific subjective experiences: heaviness, perceived decreased heart rate, and dreamlike imagery at significantly higher rates than those who heard the same drumming with relaxation framing.8PubMed Central. Exploring Shamanic Journeying: Repetitive Drumming with Shamanic Instructions Induces Specific Subjective Experiences but No Larger Cortisol Decrease than Instrumental Meditation Music The takeaway is that the rhythmic stimulus alone calms the body, but the cultural framework and intentional instructions shape the subjective experience into something qualitatively different. The set and setting matter enormously.
Plants and Pharmacology
Not all shamanic traditions use psychoactive substances, but many do. In Eastern Siberia, shamans historically used the fly agaric mushroom (Amanita muscaria) as both an inebriant and a hallucinogen.9PubMed Central. Amanita muscaria (fly agaric): from a shamanistic hallucinogen to the search for acetylcholine In the Amazon basin, ayahuasca, a brew combining two or more plant species, has been central to shamanic healing for centuries and has become the most internationally visible example of plant-based shamanic practice.
Ayahuasca’s pharmacology is more complex than popular accounts suggest. A systematic review of the pharmacological interactions of compounds in the brew concluded that current scientific understanding of these compounds is limited, and their possible synergistic properties are even less well understood. The review’s authors noted that the complexity of the processes involved exceeds what existing studies have mapped and called for significantly more research before the brew’s pharmacokinetic and pharmacodynamic effects can be reliably characterized or its potential risks adequately assessed.10PubMed Central. The pharmacological interaction of compounds in ayahuasca: a systematic review This gap between ayahuasca’s growing popularity and the scientific community’s still-rudimentary understanding of how it actually works in the body is one of the more uncomfortable realities in this field.
Shamans, Madness, and the Initiation Crisis
One of the oldest and most contentious questions about shamanism is whether shamans are mentally ill. Early Western observers often dismissed shamans as psychotics, and even some sympathetic twentieth-century anthropologists described the shamanic calling as a form of breakdown. The evidence on this is more nuanced than either side in that debate typically acknowledges.
Among the Tamang people of Nepal, the “calling” that strikes a neophyte shaman has been described as a “creative illness,” an endogenous psychological process that has the structure and function of a rite of passage. The shamanic apprenticeship involves deliberately learning to induce and master trance states that initially afflicted the person involuntarily. That mastery has been compared to a form of psychotherapy, with initiation techniques that parallel methods found in both Western therapeutic traditions and Eastern practices like yoga.11American Ethnologist. trance, initiation, and psychotherapy in Tamang shamanism The key distinction is between being overwhelmed by unusual experiences and learning to control and direct them.
More recent work has tried to disentangle shamanic experience from clinical psychosis with greater precision. A study examining religious practitioners across cultures found evidence that some, but not all, individuals in shamanic-type roles may have a schizophrenia-like psychotic process that is managed or mitigated by their religious practice. These individuals function effectively in their communities and are not identified as ill. The researchers suggested that for some people, the trained practice of communicating with spirits, combined with a non-stigmatizing social identity, may shape the content and emotional tone of voices associated with a psychotic process in ways that make them manageable and even useful.12PubMed Central. The Shaman and Schizophrenia, Revisited
This is not the same as saying shamans are “really just” schizophrenic. A separate study working with Balinese data argued that shamanic initiatory sufferings can be clearly distinguished from the onset of mental illness on multiple grounds, both in terms of the culture’s own understandings and by objective criteria.13PubMed. Shamanism, psychosis and autonomous imagination The picture that emerges is that the relationship between shamanic experience and psychiatric illness is real but not simple. Some shamans may share neurological territory with psychosis while using cultural training and social role to channel those experiences productively. Others may not have any psychotic-spectrum traits at all and arrive at their role through entirely different pathways. Collapsing all shamans into a single psychiatric category gets the story wrong.
Healing and the Body’s Stress Response
For most of its history, Western medicine treated shamanic healing as pure placebo at best and fraud at worst. That view has softened somewhat as research into psychoneuroimmunology, the study of how psychological states influence immune function, has advanced. One analysis noted that the psychoneuroimmunological perspective appears congruent with and may validate ancient shamanic healing technique, arguing that both share essential principles with contemporary complementary therapies and illuminate their core healing processes.14PubMed. Shamanism as a healing paradigm for complementary therapy
The idea is not that spirit communication literally cures disease, but that the intense social engagement, emotional catharsis, narrative restructuring, and altered states of consciousness involved in shamanic healing ceremonies may activate the same physiological pathways that modern medicine recognizes as linking psychological experience to immune function. When a person’s expectations, emotional state, and sense of social support shift dramatically during a healing ritual, their body’s stress response and immune regulation shift with them. The cortisol reduction observed even in laboratory drumming sessions offers a small window into this dynamic. None of this means shamanic healing is a substitute for antibiotics or surgery, but it does suggest that dismissing it as empty theater misses something real about how human bodies respond to communal ritual and narrative meaning-making.
Gender, Power, and Who Gets to Be a Shaman
Western accounts of shamanism have tended to default to a male image, the medicine man. But across cultures, the relationship between shamanism and gender is far more complex and interesting than that. Women have been prominent shamans in many traditions. The 12,000-year-old Natufian burial mentioned earlier involved a woman, and female shamans have been documented in cultures from Korea to the Amazon. In some societies, the shamanic role has been specifically associated with gender nonconformity or transformation.
Among the Mapuche people of Chile, a case study of Marta, a male-bodied individual who became a woman shaman, illustrates how shamanic identity can challenge and transcend conventional gender categories. Marta’s identity as a “divine heterosexual woman” was grounded in spiritual transformation, manner of dress, and gender performance, and it challenged Western notions of transvestism, transgenderism, and homosexuality tied to biological sex.15American Ethnologist. The Mapuche man who became a woman shaman: Selfhood, gender transgression, and competing cultural norms In many Siberian traditions as well, shamans were expected to embody qualities of both genders or to move between genders as part of their spiritual practice. The shamanic role has historically created social space for gender expressions that would otherwise have no sanctioned place within a community’s norms.
Shamanism as Political Resistance
Shamans have rarely been politically neutral figures. In colonial and postcolonial settings, shamanic practice has frequently functioned as a form of resistance against imposed authority. An analysis of literary representations from the Dutch East Indies period found that community belief in shamans operated as what the political theorist James Scott would call “hidden resistance”: a defense of indigenous ideology presented not as open confrontation with the colonial power but as continuation of community customs and traditions.16International Review of Humanities Studies. SHAMANISM AS RESISTANCE OF COLONIAL COMMUNITIES IN LEJAK (1935) AND BONTOTAN (1937)
In the Argentine Chaco, research on indigenous Toba and Wichí shamans showed that shamans have been political actors involved in shifting forms of confrontation across different historical periods. The same study cautioned that shamans are contradictory figures who can simultaneously resist external domination and exploitation while also creating forms of inequality and social control within their own communities.17Journal of Latin American Anthropology. Shamanic Forms of Resistance in the Argentinean Chaco A Political Economy That internal ambiguity is important and often gets erased in both romantic and dismissive accounts. Shamans can be healers and power brokers, protectors of tradition and enforcers of hierarchy, rebels against colonialism and agents of local political control, sometimes all at once.
Ecology and Resource Management
A dimension of shamanic practice that gets less public attention is its relationship with ecological management. In many indigenous communities, shamans are the custodians of taboo systems that regulate human interactions with the natural world. These taboos often restrict when, where, and how people can hunt or harvest particular species.
A study of the Idu Mishmi community in Northeast India found that hunting taboos within the community significantly reduced wild meat consumption and contributed to biodiversity protection, including the conservation of an endangered tiger population.18Journal of Ethnobiology. Relations of Blood: Hunting Taboos and Wildlife Conservation in the Idu Mishmi of Northeast India From the outside, such taboos might look like mere superstition. From an ecological perspective, they function as effective resource management systems, enforced not by government regulation but by spiritual authority and community consensus. When shamanic traditions erode, these informal conservation mechanisms often erode with them, sometimes with measurable consequences for local biodiversity.
Ayahuasca Tourism and the Commercialization Problem
The most visible intersection of shamanism and the modern world is the booming industry of ayahuasca tourism, concentrated in the Peruvian and Ecuadorian Amazon. Thousands of Westerners travel to Amazonian towns each year to participate in ceremonies led by local practitioners, seeking healing, spiritual insight, or personal transformation. The industry has brought real economic benefits to some indigenous communities, but it has also created serious problems.
Ethnographic fieldwork centered on Iquitos, Peru, the epicenter of ayahuasca tourism, found that Western engagement with indigenous shamanic traditions is usually based on idealized and romanticized notions that cannot accommodate the less palatable aspects of those traditions, including sorcery and inter-community spiritual conflict. This romanticization is not harmless. It hides the complexity of indigenous peoples’ actual situations by erasing the historical and ongoing injustices they face. The researcher proposed that a more honest approach would view indigenous peoples not as figures living in fictitious harmony with nature but as communities embedded in larger struggles, including the challenge posed by the commercialization of their own spirituality.19Anthropology of Consciousness. The Globalization of Ayahuasca Shamanism and the Erasure of Indigenous Shamanism
Research on the Shuar community in Ecuador pointed to a related dynamic: the introduction of Western tourists to indigenous rites has contributed to changes in the rituals themselves, along with both ideational and material changes on both sides of the exchange. The tourists tended to experience more shifts in their worldview and beliefs, while the impact on the Shuar was more material, affecting livelihoods, community economics, and the practical shape of ceremonies.20Český lid. Ayahuasca Ethno-tourism and its Impact on the Indigenous Shuar Community (Ecuador) and Western Participants The asymmetry is telling: Westerners come away feeling transformed, while the host communities absorb structural changes to their way of life that they did not necessarily seek.
The commercialization issue extends beyond tourism. In many urban centers around the world, people with little or no connection to indigenous traditions now offer “shamanic” ceremonies, workshops, and retreats. Some of these practitioners have trained extensively with indigenous teachers; others have not. The lack of any gatekeeping mechanism means that the label “shaman” gets attached to everything from sincere cross-cultural spiritual apprenticeship to weekend workshop certifications sold for profit. For indigenous communities whose shamanic traditions developed over centuries in specific ecological, linguistic, and social contexts, watching those traditions get extracted, simplified, and sold back as wellness products is a source of real frustration and, in some cases, material harm.