This online study explored anomalous, trickster-like events reported by researchers while writing about ghostly episodes. A convenience sample of 167 participants (seven credentialed frontier scientists and 160 amateur paranormal investigators) retrospectively endorsed 15 items spanning both subjective experiences (e.g., unusual dreams, emotional shifts) and objective events (e.g., missing...
This study presents the first comprehensive psychometric comparison of Greyson's (1983) 16-item Near-Death Experience Scale (NDE Scale) and Martial et al.'s (2020) 20-item Near-Death Experience Content Scale (NDE-C) using Rasch modeling and differential item functioning (or response bias) analyses. A total of 705 self-identified "near-death experiencers" (64% women) completed both measures,...
We applied two advanced large‐language models—OpenAI’s ChatGPT-4o and GitHub Copilot—to evaluate the Drake–S Equation framework for postmortem survival of consciousness relative to eight previously specified evidentiary standards. ChatGPT-4o judged this equation approach a “Good” to “Very Good” fit on 75% of the criteria (23/32 points, 72% overall), whereas Copilot rated it a “Good” to “Very...
This research explored whether anomalous ‘dimensional-slip’ experiences—reported by an allegedly haunted woman named “Nell”—would systematically map to distinctive features of various transcendental spaces discussed in spiritual and psychological traditions. A two-part content analysis using ChatGPT-4o compared the phenomenology of Nell’s written accounts (n = 4) to an inventory of 32 classic...
This case study examines the phenomenon of dimensional-slips, i. e., anomalous distortions or perceptions of spacetime that may involve transcendental content or themes. Our investigation specifically centers on “Nell,” a known ‘haunted’ woman who documented four experiences of perceived physical transports to other realms. Using a mixed-methods approach, we employed AI-assisted content...
Haunted People Syndrome (HP-S) characterizes recurrent ‘ghostly episodes’ as an interactionist phenomenon emerging from people with heightened somatic-sensory sensitivities that are stirred by dis-ease states, contextualized with paranormal belief, and reinforced via perceptual contagion and threat-agency detection. We tested the applicability of this psychological model via a three-part,...
Auerbach et al. (2023) proposed an AECKO model to describe the features and dynamics of a poltergeist-like disturbance they investigated with virtual technology during the COVID-19 pandemic. A two-part exercise nonetheless shows that their findings fundamentally support Laythe, Houran, Dagnall et al.’s (2021) grounded theory of Haunted People Syndrome (HP-S), which was independently developed...
Objective: We used the ChatGPT-3.5 artificial intelligence (AI)-based language program to compare twelve types of mystical, supernatural, or otherwise anomalous entity encounter narratives constructed from material in the publicly available corpus of information, and compared their details to the phenomenology of spontaneous accounts via the Survey of Strange Events (SSE) and the grounded...
This participatory team science project extended Laythe and Houran’s (2022) prior application of a famous probabilistic argument known as the "Drake equation" to the question of postmortem survival. Specifically, we evaluated effect sizes from peer-reviewed, empirical studies to determine the maximum average percentage effect that ostensibly supports (i.e., "anomalous effects") or refutes...
We used a multiteam system approach (MTS) to map the critical and constructive feedback from four invited Commentaries on Rock et al.’s (2023) probabilistic analysis of purported evidence for postmortem survival. The goal was to mine actionable insights to guide future research with the potential for important learnings or breakthroughs about the nature or limits of human consciousness and...
OBJECTIVES: Since 1972, the U.S. Central Intelligence Agency (CIA) commissioned several research programs on remote viewing (RV) that were progressively declassified from 1995 to 2003. The main objectives of this research were to statistically replicate the original findings and address the question: What are the underlying cognitive mechanisms involved in RV? The research focused on emotional...
The idea of ‘life after death’ transcends philosophy or religion, as science can test predictions from claims by both its advocates and skeptics. This study therefore featured two researchers with opposite views, who jointly gathered hundreds of research studies to evaluate the maximum average percentage effect that seemingly supports (i.e., anomalous effects) or refutes (i.e., known confounds)...
Evidence suggests that subjective and objective anomalies associated with ghostlyepisodes form a unidimensional Rasch scale and that these interconnected“signs orsymptoms”arguably describe a syndrome model. This view predicts that symptomperception—that is, the phenomenology of these anomalous episodes—can be markedlyskewed by an experient’s psychological set. This is impacted, in turn, by...
Latent semantic analysis—a technique to quantify qualitative data—was used on a large dataset of near death experience (NDE) accounts for which a sizable portion also had scores on Greyson’s NDE Scale. Given previous research with the NDE Scale showing there is a “core NDE” comprised of a probabilistic hierarchy of cognitive, affective, transcendental, and paranormal components, we hypothesized...
For those with true near-death experiences (NDEs), Greyson's (1983, 1990) NDE Scale satisfactorily fits the Rasch rating scale model, thus yielding a unidimensional measure with interval-level scaling properties. With increasing intensity, NDEs reflect peace, joy and harmony, followed by insight and mystical or religious experiences, while the most intense NDEs involve an awareness of things...
The concept of transliminality ("a hypothesized tendency for psychological material to cross thresholds into or out of consciousness") was anticipated by William James (1902/1982), but it was only recently given an empirical definition by Thalbourne in terms of a 29-item Transliminality Scale. This article presents the 17-item Revised Transliminality Scale (or RTS) that corrects age and gender...
50 college students completed the Anomalous Experiences Inventory, the AT-20 measure of tolerance of ambiguity, and a frequency of dream recall questionnaire. Using path analysis we show that precognitive dreams can be modeled as accidental 'hits' with increased dream recall and the interpretation of such hits as 'meaningful coincidences' seems facilitated by a belief in the paranormal. As...
30 experiences of shamanic journeys derived from Harner (1990) were analyzed based on a recent coding scheme for contextual variables proposed by Lange, Houran, Harte, and Havens. Consistent with previous research, the experiential content of the trances was quite consistent with the content of the available contextual variables, and embedded cues in particular ( r = .68, p < .001). As...