Mario P. Varvoglis experiments and data

Mario P. Varvoglis, PhD — Experiments and Data

Before drawing any conclusions from what follows, note that the library’s share of the published literature on Varvoglis’s work has not been measured. The structured evidence below reflects one study currently in the ESP-Nexus library — treat this as a summary of what the library holds rather than a settled account of his full research record.

Experiments

Varvoglis’s experimental work spans three interlocking areas: ganzfeld telepathy, forced-choice precognition, and micro-psychokinesis (micro-PK) with random number generators (RNGs).

Ganzfeld. As a co-author on the landmark 1990 autoganzfeld paper — Honorton, Berger, Varvoglis, Quant, Derr, Schechter, and Ferrari — he was part of the team at the Psychophysical Research Laboratories (PRL) in Princeton that ran the automated ganzfeld series and compared its results against earlier meta-analytic findings.

Forced-choice precognition. Two studies at the Institut Métapsychique International (IMI) are directly retrieved here. The first, Varvoglis, Bancel, Bailly, Boban, and si Ahmed (2019), introduced and tested the Selfield protocol — an optimized forced-choice precognition platform designed to sustain participant engagement. The second, Bancel, Varvoglis, Boban, and Bensahra (2025), was a pre-registered study using the Psi@Home platform, which extended the Selfield to at-home participation with selected cohorts, including a meditator cohort and an open cohort.

Micro-PK. Varvoglis and Bancel (2016) published a theoretical and review paper examining micro-PK research traditions — “elitist” (exceptional participants) versus “universalist” (unselected participants) — and surveying the experimental record, including Helmut Schmidt’s RNG work and the PEAR laboratory replication consortium.

Cross-cultural and institutional work. Beyond laboratory experiments, Varvoglis has argued for the importance of bridging Anglo-Saxon and Latin parapsychological research traditions, and has written on the history and revival of the IMI.

Methodology

Selfield protocol. The Selfield is a forced-choice precognition task in which participants select among target options before a pseudo-random generator determines the hit or miss — making the task structurally precognitive. The interface was designed to be visually engaging (a luminous floating blue sphere as the “target container”) to maintain attention and reduce boredom. Sessions consist of 20 trials each.

Psi@Home and cohort selection. The 2025 study extended this to a downloadable at-home application, enabling the recruitment of large, selectively screened cohorts — including experienced meditators — regardless of geography. The study was pre-registered, with confirmatory and exploratory hypotheses specified in advance. Hypotheses concerned both hit rate relative to mean chance expectation (MCE) and the variance of session hit rates across participants; the variance test was motivated by prior in-laboratory findings and theoretical precedent.

Tryout phase. Fifty tryout (recruitment) sessions were analyzed prior to the formal study to finalize hypotheses — a design feature the paper distinguishes from the pre-registered confirmatory phase.

Micro-PK review methodology. The 2016 paper was a narrative and quantitative review of the Schmidt RNG literature, tallying independent studies and their significance rates from published experimental reports rather than running new trials.

Data

The library’s structured evidence for Varvoglis covers one result row, drawn from the 2025 forced-choice precognition study:

StudyN (trials)Hit ratezpDirection
Bancel, Varvoglis, Boban & Bensahra (2025)1,7890.50594.0.000031Positive

This result is described in the study as “Tryout (recruitment) data — All cohorts pooled (90 sessions)”. That framing is important: this is the pooled tryout phase, not the pre-registered confirmatory phase. The headline hit rate is slightly above the MCE of 50%, and the associated z and p values are strongly significant in the positive direction for this pooled sample.

For the pre-registered confirmatory hypotheses, the retrieved text indicates that only one of three pre-specified hypotheses was confirmed — specifically the one predicting elevated session-hit-rate variance for the meditator cohort. The confirmatory hit-rate hypotheses are described in the paper but their confirmatory-phase statistics are not carried in the structured evidence row the library currently holds.

The 2019 Selfield exploratory study and the 2016 micro-PK review contain additional figures, but those are not present in the structured evidence rows and are therefore not stated here as settled statistics.

A chart of effect size over time is not rendered for this question — the library holds only one comparable standardized result row for Varvoglis, which is insufficient to plot a meaningful trend.

Skeptical critiques

What critics argue. No published critique of this work appears in the sources retrieved for this question.

On micro-PK more broadly, Varvoglis and Bancel (2016) themselves document a prominent failed replication: a multi-laboratory consortium including PEAR staff attempted to replicate PEAR’s RNG findings, and while all three groups found positive deviations, the effect size was nearly an order of magnitude smaller than predicted and the overall z was nonsignificant at 0.6. The combined PEAR-plus-consortium z remained significant, but the authors describe the apparent failure to replicate a well-powered prediction as “quite surprising”.

What the experimental data show. The pooled tryout data from Bancel et al. (2025) showed a positive result across 1,789 trials with z = 4.0 and p =.000031. However, this is tryout-phase data, and the confirmatory pre-registered hypotheses present a more mixed picture, with only the variance hypothesis for meditators confirmed. The 2019 Selfield exploratory study found a nominally positive trend in a meditator subgroup but its confirmatory results were not significant.

Analysis. The 2025 study is notable for its pre-registration and its at-home cohort design, both methodological strengths. The distinction the paper draws between tryout-phase and confirmatory-phase results matters for interpreting the headline figure: a strongly significant pooled tryout result alongside a mostly non-confirmed set of pre-registered hypotheses is not a contradiction, but it means the two sets of results address different questions and should not be conflated. The PEAR replication outcome documented in Varvoglis and Bancel (2016) illustrates a broader pattern in micro-PK research where replication under increased rigor has produced smaller effects than original studies.

For a fuller account of Varvoglis’s research program, see his profile at Mario P. Varvoglis — ESP-Nexus.

The studies behind this answer
PaperReported findingEffect / significanceBasis
Bancel et al. (2025), Journal of Anomalous Experience and Cognition [source]Tryout data – All cohorts pooled.z = 4.0, p = 3.1 × 10−5, hit rate 0.5059N = 1789 trials
Source: ESP-Nexus structured study database (1 studies). ESP-Nexus reports what each study found and takes no position on whether the effects are genuine.
References
  1. Bancel, P. A., Boban, J., Bensahral, A., & Varvoglis, M. (2025). A Forced-Choice Precognition Experiment with Selected Cohorts. Journal of Anomalous Experience and Cognition, 5(1), 14–46. https://doi.org/10.31156/jaex.26394
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