Testing Nonlocal Observation as a Source of Intuitive Knowledge
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Plain English Summary
Can paying attention to something change how light behaves? This study tested whether people could mentally influence photons inside a Michelson interferometer — a device that splits and recombines light to create interference patterns. The apparatus sat in a double-steel-walled shielded chamber to block ordinary influence. Ten participants tried to mentally "observe" the photons. The overall result was significant (p=0.002), but here's the striking part: experienced meditators drove the entire effect with a remarkable result (p=0.0000094), while non-meditators showed nothing. Control sessions with nobody present also showed no effect. This pilot launched Radin's quantum-observation research program, inspiring his later double-slit experiments on whether consciousness plays a role in quantum mechanics.
Research Notes
Foundational paper in Radin's quantum-observer research program: establishes the interferometer methodology and meditator/nonmeditator distinction that persists through the 2012–2025 double-slit series. Speaks to Controversy #4 (double-slit/quantum PK). Published in Explore, Vol. 4, No. 1, pp. 25–35.
Explored whether nonlocal observation — intuitive perception not mediated by ordinary senses — could perturb photons in a Michelson interferometer housed inside a double-steel-walled, electromagnetically shielded chamber. In 18 sessions with 10 participants, counterbalanced blocking/passing conditions were compared via Wilcoxon tests. Overall z = −2.82 (p = .002). The effect was driven entirely by experienced meditators (z = −4.28, p = 9.4 × 10⁻⁶); nonmeditators showed no effect (z = −0.29). Fifteen control sessions with no one present yielded z = −1.50 (p = .93), ruling out artifacts. A decline effect emerged over the series. This pilot study is the direct precursor to Radin's later double-slit interference experiments.
Links
Related Papers
Precursor
- Correlations of Random Binary Sequences with Pre-Stated Operator Intention: A Review of a 12-Year Program — Jahn, Robert G (1997)
- Evidence for Consciousness-Related Anomalies in Random Physical Systems — Radin, Dean I (1989)
- A Double-Slit Diffraction Experiment to Investigate Claims of Consciousness-Related Anomalies — Ibison, Michael (1998)
Extended By
- Consciousness and the Double-Slit Interference Pattern: Six Experiments — Radin, Dean (2012)
- Psychophysical Modulation of Fringe Visibility in a Distant Double-Slit Optical System — Radin, Dean (2016)
- Psychophysical Interactions with a Double-Slit Interference Pattern: Exploratory Evidence of a Causal Influence — Radin, D.I (2021)
- Psychophysical Effects on an Interference Pattern in a Double-Slit Optical System: An Exploratory Analysis of Variance — Radin, Dean (2022)
- Observer Influence on Quantum Interference: Testing the von Neumann-Wigner Consciousness-Collapse Theory — Radin, Dean (2025)
Critiqued By
Cites
- Effects of Consciousness on the Fall of Dice: A Meta-Analysis — Radin, Dean I (1991)
- Distant intentionality and the feeling of being stared at: Two meta-analyses — Schmidt, Stefan (2004)
- Examining Psychokinesis: The Interaction of Human Intention With Random Number Generators—A Meta-Analysis — Bösch, Holger (2006)
- Reexamining Psychokinesis: Commentary on the Bösch, Steinkamp and Boller Meta-Analysis — Radin, D (2006)
- The Persistent Paradox of Psychic Phenomena: An Engineering Perspective — Jahn, Robert G (1982)
- A Double-Slit Diffraction Experiment to Investigate Claims of Consciousness-Related Anomalies — Ibison, Michael (1998)
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📋 Cite this paper
Radin, Dean (2008). Testing Nonlocal Observation as a Source of Intuitive Knowledge. Explore: The Journal of Science and Healing. https://doi.org/10.1016/j.explore.2007.11.001
@article{radin_2008_nonlocal_observation,
title = {Testing Nonlocal Observation as a Source of Intuitive Knowledge},
author = {Radin, Dean},
year = {2008},
journal = {Explore: The Journal of Science and Healing},
doi = {10.1016/j.explore.2007.11.001},
}