Ghost Sightings: Perception, Expectations, and Human Experience
Author: Angela Bogdanova · Published: October 11, 2026 · Editorial Policy
Research cluster: Extraordinary Experiences & Anomalistic Psychology · Written by Artificial Sapiens
Ghost sightings occupy a distinctive place in the psychology of extraordinary experiences. A person may see a figure in a hallway, notice a human-shaped silhouette near a window, hear footsteps in an empty room, or feel that someone is standing immediately behind them. Such events can be startling, moving, comforting, or deeply unsettling. Their psychological reality begins with what was experienced and reported; determining what happened outside the observer requires an additional investigation.
A scientific account of a ghost sighting asks what sensory information was available, what the observer perceived, how expectations influenced interpretation, what happened to the memory afterward, and which possible external causes can be independently checked. The distinction between a genuine experience and a verified external entity is essential. Research documents unusual perceptions and shows several mechanisms capable of shaping them. It has not established that particular reports demonstrate the existence of ghosts. Nor does a single unusual episode justify a psychiatric diagnosis. Wiseman and colleagues, 2003; Barnby and colleagues, 2023.
What is a ghost sighting in psychological research?
A ghost sighting is a reported episode in which someone perceives, or believes they have perceived, an apparition or other sign interpreted as a ghost. In ordinary speech it often refers to seeing a person-like figure. Research may also include hearing seemingly unaccountable sounds, detecting a presence, noticing movement, or interpreting a series of environmental events as related. These reports differ in sensory content, duration, circumstances, and certainty of interpretation.
The phrase describes a report and its possible meaning, rather than a unitary scientifically confirmed phenomenon. It is helpful to separate three questions: What was directly seen, heard, or felt? What interpretation did the observer give that experience? What independent information can distinguish among causal explanations? Someone may be highly accurate about the fear, visual appearance, or timing of an event while being uncertain about its origin.
A report of a dark shape that resembled a person, for example, contains an immediate perceptual description and a possible attribution. A claim that a deceased person was physically present introduces a further proposition about an external cause. Each proposition calls for different evidence. This distinction guides observational studies, field investigations, and careful conversations with witnesses. Wiseman and colleagues, 2003.
Apparitions, silhouettes, shadows, and figures
A fully formed human figure is only one kind of reported sighting. People also describe faces, translucent forms, outlines, peripheral shadows, brief movement, or something recognized only after a second look. Some episodes are detailed and stable; others last less than a second and occur in poor viewing conditions. Researchers should record these differences rather than combine every account into a single category.
The amount of available visual information matters. A distant coat, reflection, moving curtain, or combination of shadows may carry enough features for the visual system to construct a person-like percept, particularly when a scene is encountered unexpectedly. Demonstrating that such mechanisms exist does not establish that any particular witness saw a coat or reflection. It identifies testable alternatives for the specific circumstances. Research on seeing faces in visual noise demonstrates how expectations interact with perception even when the stimulus itself contains no face. Liu and colleagues, 2014.
Hearing something unusual or sensing someone nearby
A reported ghost encounter may involve footsteps, knocking, a voice-like sound, a change in temperature, or a vivid sense that another person is present. Auditory and bodily experiences should be distinguished from actual visual apparitions. A person can sense a presence with no visual content at all; studies treat this felt-presence experience as an important phenomenon across everyday, neurological, sleep-related, and other contexts. Barnby and colleagues, 2023.
The observer may later summarize a mixed episode as a sighting because several impressions formed a coherent narrative. That narrative is meaningful, but its components remain useful for understanding what was perceived at each moment. Asking whether a figure was literally visible, how long it remained, and whether a sound was heard before or after the figure helps clarify a report without prejudging it.
Why can a ghost sighting feel completely real?
Perception is the brain's continuous interpretation of sensory input. Light striking the eye supplies information that is incomplete and sometimes ambiguous. The visual system combines this information with learned regularities, expectations, attention, and context to identify objects quickly. This is usually useful; it also creates conditions in which a figure can be perceived from fragments of uncertain evidence.
A person's confidence in the reality of an experience is itself an important fact about that experience, but confidence alone cannot validate the inferred external cause. A vivid event can arise under ordinary perceptual conditions, during transitions between sleep and waking, or through a distinct health-related process. Conversely, the presence of a known cognitive mechanism in laboratory research cannot identify the cause of every real-world report.
Low light, peripheral vision, and incomplete information
Dim lighting reduces usable detail, while brief glimpses and changing angles make it harder to discriminate objects. Peripheral vision supports detection of motion and broad forms but offers less fine detail than central vision. In a corridor, a passing car's headlights, an unfamiliar object, and a moment of movement can combine into a fleeting person-like impression.
Where a witness stood, which light sources were operating, the duration of viewing, and whether the object could be examined again are therefore central observations. Research on visual illusions shows that perceptual interpretation can be affected by both stimulus ambiguity and instructions about what an observer may see. In an experimental face-pareidolia task, participants reported detecting faces in noise-only images; the precise laboratory percentages should not be translated into a prevalence estimate for ghost sightings. Liu and colleagues, 2014.
Meaningful patterns and apparent human forms
Humans recognize faces and bodies remarkably rapidly. A patch of light may resemble a face, and two branches may form a silhouette. This is one possible reason for certain reports of figures in shadows or photographs. Such cases are sometimes discussed in terms of pareidolia, the perception of a meaningful form in ambiguous stimulus material.
Pareidolia is an established perceptual phenomenon, but its presence in an experiment is not proof that a particular witness experienced it. A stronger investigation tests what was visible from the same position, whether different observers report the same form independently, and whether changes in angle or illumination alter the impression. The general neuroscience of visual illusions belongs to perceptual science; its application to ghost-sighting reports is the concern here. Liu and colleagues, 2014.
Expectations change what receives attention
Expectation can influence the likelihood that ambiguous sensations will be noticed, organized, and interpreted as significant. Someone entering a reputedly haunted room may scrutinize creaks, shadows, and subtle shifts in temperature that would receive little attention elsewhere. This does not make the event imaginary. It means the context helps determine which observations stand out and how they are labeled.
In a small experiment by Lange and Houran, 22 participants visited a theater under different descriptions of the environment. The 11 people told it was haunted reported more intense experiences on nine of ten measured dimensions than the 11 told it was under renovation. The manipulation supports a contextual-expectation effect in this setting. The small sample, specific location, and reliance on self-report restrict broader causal or population conclusions. Lange and Houran, 1997.
The feeling that a presence is near
One especially vivid reported experience is knowing or feeling that someone else occupies the immediate space without a corresponding sight or sound. The sense may have a clear apparent location and emotional character. Some people describe a companion, others an intruder, and others an indistinct watcher. It may occur in solitude, intense exertion, anxiety, sleep transitions, neurological circumstances, and clinical as well as nonclinical settings.
A 2023 review in The Lancet Psychiatry describes felt presence across these settings and discusses possible connections with bodily self-awareness and social perception. The research supports the legitimacy of the experience as a phenomenon to study; no single explanation encompasses all instances. Barnby and colleagues, 2023.
What brain experiments can establish
In a 2014 Current Biology study, Blanke and colleagues examined neurological cases and used a robotic arrangement that created mismatches between participants' movements and bodily feedback. Under specific experimental conditions, the manipulation elicited a sense of another presence. This is direct experimental evidence that disturbances in sensorimotor integration can produce a presence-like experience without another person occupying the perceived location.
It would be inaccurate to infer from that finding that every ghost report comes from the same sensorimotor process. The experiment establishes that one mechanism can generate a relevant class of sensations under controlled conditions. It does not retrospectively diagnose every witness or resolve reports that include detailed visual observations, sounds, or independent environmental events. Blanke and colleagues, 2014.
How variable is felt presence?
Alderson-Day and colleagues compared reports from three diverse online samples: participants with different experiences of psychosis and voice-hearing, spiritualist respondents, and people involved in solo or endurance pursuits. Their mixed-methods study identified overlapping features and meaningful differences among groups. The online samples were modest and selected, making them unsuitable for estimating population prevalence or reducing felt presence to a psychiatric symptom. Alderson-Day and colleagues, 2022/2023.
A sighting that includes a sensed presence should therefore be recorded as a possible multimodal event. The feeling itself can be powerful and coherent even when available external sensory evidence remains limited.
What have studies of allegedly haunted places found?
Researchers have examined supposedly haunted environments and also attempted to create similar conditions in controlled rooms. These studies are valuable because they move beyond isolated anecdotes to record when and where unusual sensations occur. The principal outcomes, however, are human reports and physiological or environmental measures, not independent observation of a supernatural entity.
Hampton Court Palace and the Edinburgh vaults
Wiseman, Watt, Stevens, Greening, and O'Keeffe investigated reports at Hampton Court Palace and Edinburgh's South Bridge Vaults. Participants walked through locations with reputations for haunting and recorded anomalous experiences. Reports clustered more in reputedly haunted areas, and some patterns correlated with measured environmental features such as lighting and local magnetic-field variation. Importantly, the clustering was not explained simply by participants' prior knowledge of which specific areas had reputations.
The authors proposed that ordinary environmental and psychological factors could contribute to the reports. This field work is informative but correlational: an association between a location, its lighting, and a reported experience does not prove that lighting caused that exact event, and it does not identify a single mechanism for all reports. Wiseman and colleagues, 2003.
The Haunt Project and experimental expectations
French, Haque, Bunton-Stasyshyn, and Davis constructed a chamber where participants could be exposed to particular complex electromagnetic fields, infrasound, both, or neither. Seventy-nine people spent time in the room, knowing that they might notice unusual sensations. Many did report such sensations, but their number did not differ by experimental exposure condition. Measures related to individual experience tendencies were associated with reporting.
This result challenges a simple claim that the experimental electromagnetic-field or infrasound exposures, as delivered in this study, produced the unusual experiences. The authors considered suggestion and other features of the setting as plausible explanations. The study does not demonstrate that environmental variables never affect perception; its conclusion concerns the conditions and measures actually tested. French and colleagues, 2009.
What environmental measurements can and cannot tell us
Environmental investigation can document drafts, acoustics, lighting changes, vibration, faulty electrical equipment, and other detectable conditions. Such measurements can identify plausible causes of noises or sensations and may reveal safety problems. Their interpretation depends on comparison data, validated devices, exposure levels, and the timing of an event.
A reading from an electromagnetic detector is a measurement of an environmental quantity, not a specific measure of ghosts. A temperature fluctuation is a temperature fluctuation. An association only becomes an explanation when an appropriate causal chain has been tested. Scientific reporting should make these distinctions explicit and avoid treating ordinary sensor fluctuations as paranormal confirmation.
How can suggestion and storytelling shape a reported encounter?
For a focused discussion of how expectations shape unusual experiences and their retelling, see Suggestion and Extraordinary Experiences: How Expectations Shape Reports.
Narrative context matters both before and after an encounter. Beforeward, stories can direct attention and expectations; afterward, discussion can influence what a person remembers about the sequence. The social meaning of a site, a television portrayal, a tour guide's suggestion, or a friend's account can supply a ready vocabulary for interpreting an uncertain event.
An effect of suggestion need not involve deliberate deception. People often exchange interpretations because they genuinely seek an explanation. A question such as 'Did you see the woman by the stairs?' supplies a possible identity and location that was not necessarily present in the person's first account. Recording initial descriptions before group discussion helps distinguish independent observations from later shared detail. Experimental work on contextual haunting suggestions demonstrates why such distinctions matter. Lange and Houran, 1997.
Why later memories can be more detailed
Human memory is reconstructive. Remembering an event involves recovering information and integrating it with later knowledge, expectations, and interpretation. The source-monitoring framework explains how people determine whether mental content came from something directly perceived, imagined, inferred, or heard from another person. Such judgments can be mistaken, especially when the sources share similar content. Johnson, Hashtroudi, and Lindsay, 1993.
Research on postevent misinformation demonstrates that misleading information encountered after an event can alter later recollection. In ghost-sighting contexts, a later photograph, repeated story, or strongly framed interview may change confidence or detail. This is a general memory phenomenon applied to an unusual report, not evidence that every witness's memory is false. Loftus, 2005.
Why confident witnesses deserve careful listening
A witness can be conscientious, sincerely convinced, and observant while still lacking enough information to identify an external cause. Psychological science does not require a moral judgment about sincerity to assess a claim. Investigators should note the original wording, how soon the account was recorded, later conversations, whether a story was heard in advance, and whether witnesses described the same event independently.
Interviews should favor open questions: 'What did you notice first?' 'Where were you standing?' 'What could you actually see?' 'What changed when you looked again?' Leading questions, hypnosis designed to recover hidden paranormal memories, and repeated requests for confirmation can contaminate evidence rather than clarify it. The science of source monitoring and misinformation supplies the rationale for an open-ended approach. Johnson and colleagues, 1993; Loftus, 2005.
Does belief in ghosts affect perception?
Beliefs can influence interpretation, attention, and reporting, but believing in ghosts and experiencing an unusual perception are separate variables. A person may believe in ghosts without ever reporting a sighting. Another may report a striking figure while considering a physical or perceptual explanation most likely. Researchers should measure belief, experience, and causal attribution separately.
Dean and colleagues systematically reviewed 71 studies involving 20,993 participants on paranormal belief and cognitive functioning. The results were heterogeneous. More consistent associations involved intuitive thinking, confirmatory tendencies, conditional reasoning, and the perception of randomness. Much of the evidence was correlational, and the review highlighted heavy reliance on student samples, sparse preregistration, and incomplete correction for multiple comparisons. These population-level associations cannot determine the accuracy of an individual's ghost-sighting report. Dean and colleagues, 2022.
A psychological account should also distinguish belief from religious identification. Religious beliefs, sacred narratives, prayer, and spirituality are subjects of the psychology of religion and cultural study, with their own meanings and boundaries. Research into nonreligious ghost reports does not adjudicate the truth of religious doctrine or evaluate a person's religious commitments.
Why might two people in the same room report different things?
People differ in where they look, what they expect, how strongly they attend to subtle bodily sensations, and which descriptions are available to them. A person facing a window might perceive a moving reflection while someone at a different angle sees an ordinary source. One person might hear a low-frequency vibration while another notices nothing. A third may describe a sense of unease without seeing an object at all.
Researchers can investigate such differences by recording viewing positions, collecting independent descriptions, measuring exposure and lighting, and testing competing environmental explanations. These comparisons help clarify the contribution of the immediate situation. They do not imply that observers with different reports are less intelligent or less trustworthy. The field experiments at reputedly haunted locations illustrate both the potential and the limitations of these methods. Wiseman and colleagues, 2003.
Ghost sightings, sleep, and changes in awareness
Some frightening figure or presence reports occur while falling asleep or immediately upon awakening. Sleep-related experiences may include vivid imagery, sounds, a sensed intruder, and, in sleep paralysis, a temporary inability to move. Their timing around the sleep-wake boundary is therefore important information. Sleep paralysis is a recognized sleep phenomenon with specific features and may be frightening without indicating that a waking intruder was present.
For a fuller description of episode patterns and clinical considerations, see the published Sleep Paralysis: Symptoms, Hallucinations, and What Helps guide. The medical and psychological classification of such events belongs to sleep research rather than a catchall theory of ghost sightings. Sharpless and Doghramji, 2015.
A report made in full wakefulness, with sustained observation and independently available evidence, raises different investigative questions from an episode during awakening. Neither category should be inferred from a headline or a short online account. Basic questions about sleep timing, fatigue, and physical circumstances matter.
Cultural context and the meanings people give to sightings
Interpretation is influenced by language, family stories, local traditions, media, and shared expectations about what an encounter could mean. Some people experience fear, others curiosity, and others comfort or a sense of personal connection. Researchers need to understand the cultural setting before assigning an interpretation to a report.
Culturally respectful research permits people to state their own meanings while keeping claims about externally measurable causes subject to appropriate evidence. A story may carry social importance or personal significance independently of whether the proposed cause has been verified. A clinician or researcher can listen with respect, ask what the episode means to the person, and examine its practical effects without arguing about faith. The cross-context research on felt presence illustrates the importance of studying phenomenology across distinct populations. Barnby and colleagues, 2023; Alderson-Day and colleagues, 2022/2023.
Is seeing a ghost a sign of psychosis?
A report of seeing a ghost is not, on its own, a psychiatric diagnosis. In clinical settings, the word hallucination describes a perception-like experience without corresponding external stimulation, but deciding whether an individual episode meets that definition requires context and assessment. Apparent figures can also involve illusions, sleep-related phenomena, mistaken identification, sensory problems, or other mechanisms.
Psychotic disorders are assessed through patterns of symptoms, their duration, associated changes, functional effects, possible medical or substance-related causes, and professional diagnostic criteria. The National Institute of Mental Health describes hallucinations as one possible symptom of psychosis alongside other changes in thought and behavior. An isolated brief extraordinary report does not establish schizophrenia or another psychotic disorder. NIMH, Understanding Psychosis.
Population research likewise shows that psychotic-like experiences can be reported outside a diagnosed psychotic disorder. Their significance depends on persistence, severity, associated symptoms, and risk context; these studies do not classify ghost sightings as equivalent to psychosis. A longitudinal systematic review found that many psychotic experiences do not persist from one observation to the next, emphasizing the need to understand patterns over time. Staines and colleagues, 2023.
When is professional assessment appropriate?
A professional assessment is sensible when experiences become frequent, severely distressing, interfere with daily functioning, disrupt sleep, or occur with persistent confusion, other unusual perceptions, marked changes in behavior, or significant difficulty distinguishing perceptions from external events. Sudden neurological symptoms, intoxication, severe illness, or abrupt changes in awareness may require urgent medical care. Asking for help addresses the person's health and safety while preserving respect for their description of what happened. NIMH, Understanding Psychosis.
A clinician may ask about vision and hearing, sleep, medications, substances, mood, trauma history when relevant, neurological symptoms, and environmental circumstances. Such questions are part of differential evaluation. A questionnaire score or an extraordinary account alone cannot provide a diagnosis.
Grief-related experiences have their own context
Some people sense or perceive someone who has died during bereavement. These experiences can have personal and relational significance and require a distinct discussion of grief and continuing bonds. The published Grief: Psychological Responses to Loss article addresses that context. A bereavement-related experience should not automatically be grouped with general haunted-location reports or interpreted as a sign of illness. Barnby and colleagues, 2023.
Could a reported haunting indicate an environmental safety problem?
Practical safety concerns merit attention before a supernatural explanation is considered. Unusual sounds may originate from building systems, while dizziness, headache, or confusion can sometimes indicate a health or environmental problem. In particular, carbon monoxide is an odorless and colorless gas associated with headache, dizziness, weakness, nausea, chest pain, and confusion; dangerous exposure can cause collapse or death. This does not make carbon monoxide a general explanation for ghost sightings.
If several people in a building develop symptoms, a carbon monoxide alarm sounds, or a combustion-appliance problem is suspected, occupants should move to fresh air and contact emergency services or a qualified local authority according to local guidance. The priority is safety, not testing a paranormal theory. The U.S. Centers for Disease Control and Prevention outlines CO risks and symptoms.
Other practical checks may include lighting, airflow, unfamiliar reflections, building acoustics, and appliances, performed safely by qualified professionals where necessary. An environmental explanation should be documented rather than presumed.
How should scientists investigate a ghost-sighting report?
A rigorous investigation begins with a clear record of the claimed event and separately testable hypotheses. It should specify what evidence would favor or disfavor each explanation before measurements are interpreted. The procedures will differ between a brief perceptual report, a recurring sound, a sleep-related episode, and an alleged visual apparition observed by several people.
Start with a time-stamped, independent account
As soon as practical, record the date, estimated time, duration, exact location, lighting, witness position, preceding circumstances, and the person's original words. Separate a statement such as 'I saw a shape move near the door' from 'I knew it was a ghost.' If there are multiple witnesses, collect their first accounts independently, before they discuss interpretations with each other.
The quality of a report increases when original observations can be distinguished from later reconstructions. Open interviews and contemporaneous notes address recognized limitations in autobiographical and eyewitness memory. Johnson and colleagues, 1993; Loftus, 2005.
Examine the environment and competing explanations
Investigators can revisit the viewing position at comparable times, document reflections and shadows, examine acoustic pathways, and assess whether ordinary sources reproduce the reported event. Measurements should be calibrated where relevant. Investigators should disclose which conditions could not be recreated and avoid presenting an unrepeatable episode as a controlled experiment.
When research compares supposedly haunted and control locations, blinding, randomization, reliable outcome measures, and clearly defined exposure conditions are especially useful. Field correlations and controlled laboratory findings answer different questions. Comparing the Wiseman field studies with the French laboratory experiment illustrates how the two designs complement one another without providing a single universal explanation.
Record negative findings and uncertainty
A report that a detector registered no unusual value is still information. A failure to reproduce a sound or shadow may reflect changing conditions rather than disproving the original observation. Good investigation reports positive and negative observations, missing measurements, procedural deviations, and uncertainties about timing and causality.
For extraordinary external-cause claims, stronger evidence requires reliable instrumentation, prospective protocols, independent observers, controls for ordinary explanations, and replication across investigative teams. An unexplained report is a description of the current limits of information; it is not itself a demonstrated paranormal mechanism.
What does the scientific evidence actually establish?
The evidence is clearest when different kinds of claims are kept separate. First, documented experience: people report figures, shadows, noises, and felt presences, sometimes with strong conviction or emotional impact. Second, established mechanisms: perception of patterns in ambiguous stimuli, source-monitoring errors, misinformation effects, and experimental induction of felt presence are supported by controlled cognitive and neuroscience research. Liu and colleagues, 2014; Johnson and colleagues, 1993; Blanke and colleagues, 2014.
Third, contextual evidence: field studies of alleged hauntings and small suggestion experiments indicate that environments, expectations, and social framing may influence reports. These studies carry limitations of selection, sample size, measurement, and causal inference. Fourth, a specific causal diagnosis: explaining an individual sighting requires case-specific evidence. Fifth, a contested external claim: published peer-reviewed studies of subjective sightings have not, by themselves, established ghost entities as their external cause. Wiseman and colleagues, 2003; French and colleagues, 2009.
This framework protects two scientific obligations at once. The witness's experience is taken seriously as an event in human life, and explanations are evaluated according to the strength and independence of evidence. It avoids reducing a person's experience to a stereotype while also avoiding claims that exceed what was measured.
How strong is the ghost-sighting research literature?
The most direct field research is relatively small and situation-specific. Studies conducted in locations with reputations for haunting often rely on self-selected visitors, retrospective descriptions, and sensations rather than verified external events. Laboratory studies permit better control but may not reproduce the intensity, spontaneity, and personal meaning of an unexpected real-world encounter.
Expectation experiments demonstrate that instructions can change what participants report, but demand characteristics and social desirability must be considered. Correlation between an environmental measure and reports may reflect multiple connected properties of a place. Studies of paranormal belief often examine questionnaire scores instead of first-person sightings, which means their conclusions cannot be transferred to all witnesses. Lange and Houran, 1997; Dean and colleagues, 2022.
A higher-quality research agenda would use preregistered hypotheses, independent replication, blind coding of witness descriptions, objective environmental monitoring, and explicit alternatives tested against predictions. Longitudinal designs could examine how an account evolves across conversations and retellings. Cross-cultural research could compare phenomenology while controlling for differences in language and interpretation. These are methodological priorities rather than claims that all such evidence already exists.
How to respond if you have experienced a ghost sighting
Begin with an accurate, nonjudgmental account of what happened. Write down what you sensed, where and when it occurred, what you thought it meant at the time, and what you subsequently learned. If you feel safe doing so, consider ordinary environmental conditions without trying to force a conclusion. People do not need to settle the cause immediately to recognize that an episode was frightening or meaningful.
If someone else shares an experience, invite description before interpretation. Questions about sleep, lighting, sound, and prior information can be asked sensitively, as matters of context rather than challenges to sincerity. Avoid escalating uncertainty with leading interviews or using hypnosis to retrieve supposedly hidden evidence. The memory literature explains why such strategies can distort rather than verify details. Loftus, 2005.
If there may be a physical hazard, address safety first. If repeated experiences create significant fear or functional problems, healthcare professionals can help examine sleep, sensory, medical, and psychological factors. A supportive discussion can preserve personal meaning while helping the person evaluate the available evidence.
Frequently asked questions
Why do people see ghosts in the corner of their eye?
Peripheral and low-detail visual input can be harder to identify, and rapid motion or shadows may resemble a human form. This offers a plausible account for some fleeting reports, especially in poor lighting, but it does not determine the cause of every sighting. Liu and colleagues, 2014.
Can a ghost sighting happen in daylight?
Yes, people report extraordinary perceptions in varied lighting conditions. Better illumination may help identify an ambiguous object, but the meaning of a particular report depends on duration, attention, visibility, and other evidence. Daylight alone neither verifies nor refutes a proposed cause.
Are ghost sightings always hallucinations?
No. Some reports describe ordinary objects mistakenly identified, ambiguous sensory impressions, sleep-related imagery, a felt presence, or events whose immediate cause is unknown. A clinical hallucination has a particular descriptive meaning, and diagnosis requires context. Barnby and colleagues, 2023; NIMH.
Why do several witnesses sometimes describe similar things?
They may have encountered the same physical stimulus, shared expectations, discussed the event before recording independent accounts, or experienced some combination of these factors. Agreement becomes more informative when initial observations are documented independently and compared with objective evidence. Johnson and colleagues, 1993.
Can fear make a shadow appear to be a person?
Fear and heightened attention may alter how ambiguous information is noticed and interpreted. The specific effect depends on context and has to be evaluated with the available sensory evidence. Small contextual-suggestion experiments suggest that framing can influence reports in a reputedly unusual environment. Lange and Houran, 1997.
Can scientists reproduce the feeling of a ghost nearby?
Controlled sensorimotor experiments have induced a felt presence in some participants. This is compelling evidence for a particular perceptual mechanism, while leaving open how well it accounts for other reported experiences. Blanke and colleagues, 2014.
Does a photo or video prove that a ghost was present?
An image records what a particular device captured under its technical conditions. Its interpretation may require original file data, lighting context, motion, reflections, optical artifacts, and independent corroboration. The fact that an image is unexplained does not establish a specific supernatural cause. Reliable claims require comparison among testable alternatives.
Is belief in ghosts a mental illness?
Belief in ghosts is not a diagnosis. Researchers distinguish belief, momentary perceptual experiences, distress, sustained symptoms, and functional impairment. Clinical evaluation may be appropriate for recurrent distressing episodes or additional changes in thought and behavior, rather than for the belief alone. NIMH.
What if seeing a figure happened as I woke up?
Sleep-related imagery, felt presence, and sleep paralysis are possibilities worth discussing with a clinician if episodes recur or disrupt sleep. The timing of the episode is central, and there are specific sleep-related phenomena to consider. Read Sleep Paralysis: Symptoms, Hallucinations, and What Helps. Sharpless and Doghramji, 2015.
Have studies scientifically proved that ghosts exist?
Studies have documented unusual human experiences and evaluated mechanisms and environmental correlates. The field and laboratory studies cited here do not establish the existence of ghosts as external entities. An individual event left unexplained is a legitimate research question, but a stronger causal conclusion requires stronger independent evidence. Wiseman and colleagues, 2003; French and colleagues, 2009.
Related Articles
Haunted Places: Psychology, Environmental Factors, and Evidence — evidence about reputedly haunted locations, environmental measurements, expectation, and methodological limits.
Sleep Paralysis: Symptoms, Hallucinations, and What Helps — sleep-related perceptions and temporary paralysis around waking.
Grief: Psychological Responses to Loss — bereavement experiences, emotional meaning, and continuing bonds.
References
Alderson-Day, B., Moseley, P., Mitrenga, K., Moffatt, J., Lee, R., Foxwell, J., Hayes, J., Smailes, D., & Fernyhough, C. (2023; online 2022). Varieties of felt presence? Three surveys of presence phenomena and their relations to psychopathology. Psychological Medicine, 53, 3692–3700. https://doi.org/10.1017/S0033291722000344.
Barnby, J. M., Park, S., Baxter, T., Rosen, C., Brugger, P., & Alderson-Day, B. (2023). The felt-presence experience: From cognition to the clinic. The Lancet Psychiatry, 10, 352–362. https://doi.org/10.1016/S2215-0366(23)00034-2.
Blanke, O., et al. (2014). Neurological and robot-controlled induction of an apparition. Current Biology, 24, 2681–2686. https://doi.org/10.1016/j.cub.2014.09.049.
Centers for Disease Control and Prevention. (2026). Carbon monoxide poisoning basics. https://www.cdc.gov/carbon-monoxide/about/index.html.
Dean, C. E., Akhtar, S., Gale, T. M., Irvine, K., Grohmann, D., & Laws, K. R. (2022). Paranormal beliefs and cognitive function: A systematic review and assessment of study quality across four decades of research. PLOS ONE, 17, e0267360. https://doi.org/10.1371/journal.pone.0267360.
French, C. C., Haque, U., Bunton-Stasyshyn, R., & Davis, R. (2009). The “Haunt” project: An attempt to build a “haunted” room by manipulating complex electromagnetic fields and infrasound. Cortex, 45, 619–629. https://doi.org/10.1016/j.cortex.2007.10.011.
Johnson, M. K., Hashtroudi, S., & Lindsay, D. S. (1993). Source monitoring. Psychological Bulletin, 114, 3–28. https://doi.org/10.1037/0033-2909.114.1.3.
Lange, R., & Houran, J. (1997). Context-induced paranormal experiences: Support for Houran and Lange's model of haunting phenomena. Perceptual and Motor Skills, 84, 1455–1458. https://doi.org/10.2466/pms.1997.84.3c.1455.
Liu, J., et al. (2014). Seeing Jesus in toast: Neural and behavioral correlates of face pareidolia. Cortex, 53, 60–77. https://doi.org/10.1016/j.cortex.2014.01.013.
Loftus, E. F. (2005). Planting misinformation in the human mind: A 30-year investigation of the malleability of memory. Learning & Memory, 12, 361–366. https://doi.org/10.1101/lm.94705.
National Institute of Mental Health. (n.d.). Understanding psychosis. https://www.nimh.nih.gov/health/publications/understanding-psychosis.
Sharpless, B. A., & Doghramji, K. (2015). Sleep paralysis: Typical symptoms and associated features. In Sleep Paralysis: Historical, Psychological, and Medical Perspectives (pp. 71–92). Oxford University Press. https://doi.org/10.1093/med/9780199313808.003.0006.
Staines, L., et al. (2023). Incidence and persistence of psychotic experiences in the general population: Systematic review and meta-analysis. Schizophrenia Bulletin, 49, 1007–1021. https://pmc.ncbi.nlm.nih.gov/articles/PMC10318880/.
Wiseman, R., Watt, C., Stevens, P., Greening, E., & O'Keeffe, C. (2003). An investigation into alleged “hauntings.” British Journal of Psychology, 94, 195–211. https://doi.org/10.1348/000712603321661886.