The GML Project is a metascientific replication project that has been organized by the Paradox Science Institute. Multiple laboratories are participating in the GML Project to rigorously evaluate the claimed replicability of one of the largest laboratory effects in anomalous cognition research—the so-called Ganzfeld telepathy effect. The Ganzfeld telepathy effect concerns the claimed phenomenon of anomalous information transmission between a sender and receiver under conditions of sensory shielding. Meta-analyses of more than 100 Ganzfeld studies have reported a highly significant anomalous effect (Storm et al., 2010; Tressoldi and Storm, 2024). The GML Project reinvestigates the claim of the anomalous Ganzfeld effect by closely reproducing the number of studies and average trial number per study that was analyzed in a highly influential meta-analysis (Storm et al., 2010). 50 years after the first report of the anomalous Ganzfeld effect (Honorton and Harper, 1974), the GML Project seeks to make progress towards the identification of the source of this claimed anomalous finding using advanced, rigor-enhancing methodologies. A counterfactual version of the GML Project is also conducted, where a random event generator (REG) substitutes for the participants during the test phase. Hence, the counterfactual GML Project investigates the accuracy and reliability of the research methodology that is used in the GML Project and, therefore, presents a REG-based metascientific replication project as part of the Synergy program as well. For a recent example of a metascientific replication project conducting research on anomalous cognition with the Paradox Science Institute see Walleczek et al. (2025). Click the following link.

GML Project Organizational Structure

The Paradox Science Institute is the developer, funder, and organizer of a research consortium for investigating the replicability of the claimed Ganzfeld telepathy effect. This research consortium is referred to as the Ganzfeld Multi-Laboratory (GML) Project. As the scientific organizer, the GML Leadership Team of the Paradox Science Institute has invited multiple partners (co-organizers) to join the research consortium, including some laboratories with prior experience in conducting research on anomalous cognition. Again, the GML Project presents a metascientific replication project which has been organized for the purpose of investigating whether the long-claimed Ganzfeld telepathy effect can be replicated when using rigor-enhancing metascientific strategies for reducing the risk of false discoveries as a function of (i) confirmation bias, (ii) non-transparency, i.e., the lack of verifiability of the used research procedures and (iii) intrinsic measurement bias. For a recent example of the conduct of a metascientific replication project with the Paradox Science Institute see the article by Walleczek et al. (2025) which also outlines the early vision for the GML Project. Click the following link.

GML Scientific Leadership Team

Jorge Moll
Chief Science Officer and Founder, Paradox Science Institute, USA

Jan Walleczek – GML Project Director
Scientific Director, Paradox Science Institute, USA

Nikolaus von Stillfried – GML Project Manager
Science Program Officer, Paradox Science Institute, USA

Tiago Bortolini – GML Project Brazil Coordinator
Science Project Manager, Paradox Science Institute, USA

GML Scientific Advisors

Stefan Schmidt
University of Freiburg, Germany

Uri Maoz
Chapman University, Orange, USA

Zoltan Kekecs
ELTE, University of Budapest, Hungary

Jonathan Schooler
University of California, Santa Barbara, USA

Jordan Grafman
Northwestern University and Shirley Ryan Ability Lab, Chicago, USA

GML Laboratories

Stefan Schmidt – GML Project Lab PI
University of Freiburg, Germany

Uri Maoz – GML Project Lab PI
Chapman University, Orange, USA

Zoltan Kekecs – GML Project Lab PI
ELTE, University of Budapest, Hungary

Jonathan Schooler – GML Project Lab PI
University of California, Santa Barbara, USA

Moritz Dechamps – GML Project Lab PI
Ludwig-Maximilian University, Munich, Germany

Jorge Moll – GML Project Lab PI
Cognitive Neuroscience Unit, IDOR, Rio de Janeiro, Brazil

GML Statistics Consultant

Johannes Gladitz, Berlin, Germany

GML Operational Leadership Team

Sergio Mello
Chief Operating Officer, Paradox Science Institute, USA

Bruce Fetzer
Chief Strategy Officer, Paradox Science Institute, USA

Jean Adams – GML Operations Manager
Operations Manager, Paradox Science Institute, USA