JonoThora: Psionics expansion (01a + 01b): content authored / LaTeX-restored per local submodule; lint-clean.

2026-05-11T20:51:54Z

Psionics expansion (01a + 01b): content authored / LaTeX-restored per local submodule; lint-clean.

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= Presentiment =

{{Audience_Sidebar
| difficulty = Introductory
| reading_time = 6 minutes
| prerequisites = General awareness of [[Anomalous_Cognition]]; basic statistics.
| if_too_advanced_see = [[Anomalous_Cognition]]
| if_you_want_the_math_see = [[Falsification_Criteria_for_Psionics]]
}}

'''Presentiment''' is the experimental finding that '''autonomic physiological responses (heart rate, skin conductance, pupil dilation) appear to anticipate future emotionally-significant stimuli by 1-10 seconds — before the stimulus has been randomly selected'''. It is the most rigorously-tested form of putative precognition in the [[Anomalous_Cognition]] literature.

The term was coined by Dean Radin and the protocol developed in the mid-1990s. The phenomenon was thrust into mainstream debate by Daryl Bem's controversial 2011 ''Journal of Personality and Social Psychology'' paper, and meta-analytically synthesised by Mossbridge, Tressoldi, and Utts in 2012.

== The protocol ==

# '''Subject''' is connected to physiological monitoring: typically skin conductance (electrodermal activity) and/or heart rate.
# '''Stimuli pool''' — a set of images covering a range of emotional valences (calm, neutral, emotionally-arousing, fear-inducing).
# '''Trial sequence''':
## Baseline recording (~ 10 seconds).
## '''Pre-stimulus interval''' (5-10 seconds) — physiological response recorded.
## '''Random selection''' of stimulus image by computer — the stimulus is selected ''after'' the pre-stimulus interval has begun.
## '''Stimulus presented'''.
## '''Post-stimulus response''' recorded.
# '''Analysis''' — compare pre-stimulus autonomic response on trials with later-presented emotional vs. calm stimuli.

The critical comparison: '''before the stimulus is selected''', does the subject's body "know" what category will come?

== Result ==

Across studies, subjects' pre-stimulus autonomic response is '''statistically larger for trials with later-presented emotional stimuli than for trials with later-presented calm stimuli'''.

Mossbridge, Tressoldi, Utts 2012 meta-analysis:

* '''26 studies''' included after filtering for quality criteria.
* '''Aggregate effect size''' d ≈ 0.21 (small but robust).
* '''p-value''' < 0.001 for the aggregate effect.
* '''Heterogeneity''' moderate (I<sup>2</sup> ~ 50%), but the direction is consistent across studies.

== The Bem 2011 paper ==

Daryl Bem's 2011 paper ''Feeling the Future'' (''Journal of Personality and Social Psychology'' 100: 407-425) reported nine experiments with positive precognition effects, including:

* '''Retroactive priming''' — current performance affected by future-presented primes.
* '''Retroactive habituation''' — current habituation accelerated by future exposure.
* '''Retroactive recall''' — words to be later-studied are better-recalled.

Total: 8 of 9 experiments significant; meta-analytic effect size d ≈ 0.22.

Publication of this paper in a mainstream journal sparked '''substantial controversy''' and is often credited as a major catalyst for the broader [[Replication_Crisis_in_Parapsychology|replication crisis]] in psychology — see [[Replication_Crisis_in_Parapsychology]].

== Replication efforts ==

The post-Bem-2011 replication landscape is mixed:

* '''Galak et al. 2012''' — 7 attempted replications of Bem's retroactive-recall experiment; null results.
* '''Wagenmakers et al. 2011''' — Bayesian reanalysis of Bem 2011; concluded evidence was weak (Bayes factor against the null only modestly supports H1).
* '''Bem et al. 2015''' — meta-analysis of 90 replications by 33 independent labs; aggregate effect size 0.09, still positive but smaller than original.
* '''Kekecs et al. 2023''' — preregistered multi-lab replication of Bem retroactive-recall experiment; null result.

The current consensus: Bem 2011's specific experimental paradigms do not replicate at the original effect sizes. However, the broader Mossbridge et al. 2012 presentiment meta-analysis is across a different set of paradigms (autonomic response, not behavioural recall) and shows more consistent positive effects.

== The two presentiment paradigms ==

It is important to distinguish:

=== Autonomic-response presentiment ===

The Mossbridge-Radin paradigm: pre-stimulus skin conductance / heart rate / pupil dilation, with computer-controlled random stimulus selection. The aggregate effect across this paradigm remains robust in meta-analyses.

=== Behavioural-response presentiment ===

The Bem-2011 paradigm: behavioural-task performance modified by future stimuli. The replication record here is poor; most direct replications are null.

The two paradigms test different theoretical predictions and have different methodological vulnerabilities. The framework's strongest empirical support comes from the autonomic-response paradigm.

== Critique and methodological vulnerabilities ==

# '''Multiple comparisons''' — pre-stimulus interval includes many time points; choice of analysis window may be post hoc. Modern protocols pre-register the analysis window.
# '''Stimulus-selection randomisation''' — must be truly random and not influenced by any subtle environmental cue. Hardware RNGs and pre-recorded stimulus sequences address this.
# '''Subject expectation effects''' — subjects who know the protocol may differentially respond to perceived stimulus probabilities. Addressed by blinded protocols.
# '''Publication bias''' — assessed by Mossbridge et al. 2012; effect survives reasonable estimates of unpublished nulls.

== Connection to the framework ==

In the [[Psionics|psionic framework]]:

* '''Retarded vs. advanced fields''' — the standard treatment of EM uses retarded Green's functions (causes precede effects). Wheeler-Feynman absorber theory (1945) uses time-symmetric (half retarded + half advanced) Green's functions. The framework treats the ψ field analogously: there may be small advanced-Green's-function contributions to ψ correlations, producing apparent "future-causes-present" effects at the autonomic level.
* '''Small effect size''' — consistent with the framework's expectation that α (the ψ-coupling) is small.
* '''Autonomic vs. cognitive''' — the framework predicts that ψ-effects appear more clearly in pre-conscious / autonomic responses than in conscious-cognitive responses, because conscious access requires additional neural integration that filters and degrades the ψ-mediated signal.

This is the framework's interpretation; mainstream consensus remains skeptical of the underlying empirical claim.

== See Also ==

* [[Anomalous_Cognition]]
* [[Remote_Viewing]]
* [[PEAR_Program]]
* [[Replication_Crisis_in_Parapsychology]]
* [[Falsification_Criteria_for_Psionics]]

== References ==

* Bem, D. J. (2011). "Feeling the future: Experimental evidence for anomalous retroactive influences on cognition and affect." ''Journal of Personality and Social Psychology'' 100: 407–425.
* Mossbridge, J., Tressoldi, P., Utts, J. (2012). "Predictive physiological anticipation preceding seemingly unpredictable stimuli: A meta-analysis." ''Frontiers in Psychology'' 3: 390.
* Radin, D. I. (2004). "Electrodermal presentiments of future emotions." ''Journal of Scientific Exploration'' 18: 253–273.
* Galak, J., LeBoeuf, R. A., Nelson, L. D., Simmons, J. P. (2012). "Correcting the past: Failures to replicate psi." ''Journal of Personality and Social Psychology'' 103: 933–948.
* Bem, D. J., Tressoldi, P., Rabeyron, T., Duggan, M. (2015). "Feeling the future: A meta-analysis of 90 experiments on the anomalous anticipation of random future events." ''F1000Research'' 4: 1188.

[[Category:Psionics]]
[[Category:Anomalous Cognition]]
[[Category:Parapsychology]]

Presentiment - Revision history

JonoThora: Psionics expansion (01a + 01b): content authored / LaTeX-restored per local submodule; lint-clean.