Charles Honorton Sources:
Dream telepathy and sleep-based psi
Before he standardized the ganzfeld paradigm, Charles Honorton worked at the Maimonides Medical Center Dream Laboratory in Brooklyn, where he joined Montague Ullman and Stanley Krippner in studying whether a sleeping receiver could incorporate a distant sender’s target image into dream content. This spoke traces Honorton’s dream-telepathy and precognitive-dream studies of the early 1970s and connects them to the theoretical thread, internal attention states as conditions favoring psi detection, that ran through the rest of his career.
Deeper dives, Honorton:
Key findings
- Honorton’s first published psi-ganzfeld paper grew directly out of the Maimonides dream-telepathy programme, reframing the free-response telepathy task around regulated perceptual input rather than sleep.1
- A precognitive-dream study at Maimonides reported that a single special subject’s dream content matched targets selected after the dream night.2
- An attempted group dream-telepathy transmission used a rock concert audience as senders.3
- Honorton found that reported frequency of dream recall related to ESP performance, anchoring his later focus on dream-like internal states.4
- Honorton’s theoretical framework held that roughly two of every three reported psi experiences occur in dreams or other non-ordinary states, motivating laboratory induction of such states.5
Overview
Honorton entered the Maimonides Medical Center Dream Laboratory in 1967 and became its director of research, joining Montague Ullman and Stanley Krippner on a programme that tested whether a sleeping receiver, monitored by EEG, could incorporate a distant sender’s target picture into reported dream imagery. The sleep-ESP work shares a defining vulnerability with the broader free-response literature: effects are small, intermittently replicable, and sensitive to subject selection and the receiver’s psychophysiological state, so a single null night or null series does not settle the question in either direction. Honorton himself treated dreaming not as the phenomenon’s home but as one instance of a wider class of “internal attention states” in which the receiver’s sensory load is reduced and attention is turned inward.5
Why Dreams Were the Starting Point
In his theoretical synthesis Honorton argued that the detection of psi requires four conditions, detection within ongoing conscious experience, discrimination of the weak signal from sensory and cognitive noise, retention until report, and subsequent confirmation of correspondence. He noted that at least two of every three reported spontaneous psi experiences occur in dreams or other non-ordinary states, and that a similar ratio held for experimental studies giving significant evidence: roughly two of three used internal-state psi measures. The proposed mechanism, that internal states reduce sensory functioning and deploy attention toward internal mentation, increasing the likelihood that a weak psi input reaches awareness, was his preferred interpretation, not a demonstrated cause.5
The Maimonides dream-ESP studies
The core Maimonides paradigm placed a receiver in a sleep room wired for EEG and electro-oculography; when monitoring indicated REM sleep, a sender in a distant room concentrated on a randomly selected art print, and the receiver was woken at the end of each REM period to report dream content for later blind matching against the target pool. Honorton’s published contributions to this programme tested variations on the transmission conditions rather than re-deriving the basic effect.6
The most widely discussed sleep study Honorton co-authored attempted telepathic transmission to sleeping receivers from a large audience at a rock concert, with the audience shown a target image and asked collectively to “send” it to a distant sleeper. The design substituted a crowd of unselected senders for the usual single sender, a manipulation of sender number whose outcome Honorton and colleagues reported as exploratory.3
Transmission Under Two Conditions
Honorton, Krippner, and Ullman compared telepathic transmission of art prints in sleep under two conditions, part of the Maimonides effort to identify which sender- and target-side variables modulated dream incorporation.6 A recurring non-psi concern across all such matching studies is judging contamination, if any sensory or procedural cue links the dream transcript to the correct target, blind matching is no longer clean. The Maimonides protocol mitigated this by keeping the receiver target-blind and having external judges rate transcript-target correspondence; whether sender-experimenter contact during target loading was fully isolated is not resolved in these early reports.3
Dream Recall and ESP
Separately from the sleep-laboratory transmission studies, Honorton examined whether self-reported frequency of dream recall related to ESP test performance, a survey-style approach connecting an individual-difference measure to psi scoring.4 Response-bias is the obvious alternative explanation for any such correlation, participants who believe in their own dream vividness may also respond differently on an ESP task, and Honorton’s report treated the relationship as a preliminary individual-difference finding rather than evidence of a psi mechanism.4
Precognitive and hypnotically induced dreams
A distinct strand of the Maimonides work asked not whether dreams could carry telepathic content from a present sender, but whether they could anticipate a target selected only after the dream night. Honorton co-authored a series of precognitive-dream studies built around a single special subject, in which the subject’s dream reports were collected first and the target experience was randomly determined afterward.7
The Single-Subject Precognitive Series
The first precognitive-dream study with this single subject reported correspondence between the subject’s pre-target dream content and the later randomly selected target experience.7 A second study with the same subject followed.2 Single-subject designs are inherently exploratory and vulnerable to sampling and selection effects: a result drawn from one exceptional performer cannot be generalized, and the temporal ordering, dream report locked before target generation, is the central safeguard against retro-fitting the match. These reports stand as preliminary case-style evidence, not as replicable demonstrations.
Honorton’s interest in dreams as a psi-conducive medium also extended to hypnotically induced dreams, in which a waking subject was hypnotized and instructed to “dream” toward a concealed target. He explored this approach in early clairvoyant-dream work, treating hypnotic dream induction as a way to access dream-like imagery without waiting for natural REM sleep.8
Hypnotically Induced Clairvoyant Dreams
Honorton and Stump’s preliminary study of hypnotically induced clairvoyant dreams asked whether suggestion-generated dream imagery could retrieve target information, an approach Honorton pursued further in examining the factors that made such induced dreams more or less successful.9 The hypnosis route addressed a practical limitation of all-night sleep studies, the labor and equipment of EEG monitoring, by inducing a dream-like internal state on demand, but it introduced demand characteristics as a competing explanation, since a hypnotized subject is responsive to the experimenter’s framing. Honorton reported these as preliminary explorations of an induction technique rather than as established effects.8
From sleep to internal attention states
The most consequential outcome of Honorton’s dream work was conceptual: he came to regard sleep, hypnosis, relaxation, and the ganzfeld as members of a single family of internal attention states, all sharing reduced sensory load and inward-turned attention. The first published psi-ganzfeld paper, with Sharon Harper, framed the technique explicitly as a procedure for regulating perceptual input, a waking analogue of the dreaming state that did not require all-night EEG monitoring.1
The Ganzfeld as a Waking Dream Analogue
Honorton and Harper’s 1974 paper described the ganzfeld, halved ping-pong balls over the eyes producing uniform light, white noise through headphones producing uniform sound, as an experimental procedure for regulating perceptual input, explicitly positioning psi-mediated imagery and ideation as the phenomenon of interest.1 This was sensory attenuation, not sensory deprivation: the participant remained continuously aware of uniform light and sound. Honorton’s theoretical writing tied the move to his reading of Patanjali’s Yoga Sutras as a system of progressive psychophysical noise reduction, placing REM sleep, meditation, hypnosis, progressive relaxation, and ganzfeld stimulation on a common continuum of sensory-somatic attenuation.10
Partial Sensory Attenuation and Shifts in State
An intermediate study examined shifts in subjective state and general extrasensory perception under conditions of partial perceptual isolation, bridging the all-night sleep studies and the fully waking ganzfeld.11 The work probed whether the magnitude of a subject’s shift toward an internal, dream-like state co-varied with psi scoring, a within-subject test of the noise-reduction hypothesis rather than a simple present/absent contrast. Honorton’s preferred interpretation was that the state itself was the active variable; this remained a contested mechanism rather than a settled finding.11
By recasting the sleeping receiver as one realization of an internal-state principle, Honorton transformed a labor-intensive dream paradigm into the more tractable ganzfeld protocol that would dominate the rest of his career and the later meta-analytic exchange with Ray Hyman. A preregistered, adversarially-designed dream-precognition replication using fixed-N stopping and locked pre-target dream transcripts, independent of any single special subject, would do most to clarify whether the Maimonides single-subject results reflect a real effect or selection in small samples.
Skeptical Critiques and Discussion
Critique 1: The free-response sleep and ganzfeld databases departed from ideal standards on randomization, multiple testing, and sensory-leakage control.
In their joint communiqué, Hyman and Honorton agreed that the psi-ganzfeld experiments as a group departed from ideal standards on aspects such as multiple testing, randomization of targets, and controlling for sensory leakage.12
Honorton’s response to that critique, and the subsequent automated systems, were aimed precisely at these channels: the autoganzfeld placed target selection, presentation, and blind judging under computer control, with the receiver in an RF-shielded sound-isolation room and the sender in a separate sound-attenuated room, eliminating direct sensory cueing while not fully resolving sender-experimenter interaction during target loading.13
Response by Honorton: The joint communiqué jointly recommended specific standards for randomization, judging, feedback, and statistics that future free-response experiments should meet, framing the dispute as one to be settled by better-conducted future studies rather than re-litigation of the existing base.14
Analysis. The sleep-ESP and early ganzfeld studies were exploratory and shared the randomization and judging weaknesses Hyman and Honorton later catalogued together. The automation Honorton built at PRL addressed sensory leakage and judging contamination directly, but the single-subject precognitive-dream reports predate those controls and remain preliminary case material; whether their correspondences reflect a real effect cannot be established from the original small-sample series alone.
Critique 2: Results drawn from selected special subjects do not generalize and may reflect selection in small samples.
The Maimonides precognitive-dream studies rested on a single exceptional subject, and Honorton’s own later meta-analytic work documented that studies using subjects selected on prior performance show systematically larger effects than studies using unselected subjects.15
Honorton treated subject selection as a genuine moderating variable rather than an artifact, reporting in his precognition meta-analysis that selected subjects tested individually with trial-by-trial feedback produced independently significant outcomes in seven of eight such studies, a pattern he interpreted as a real psi-conducive condition.15
Analysis. Selection cuts both ways: it can inflate small-sample results through capitalization on chance, and it can index a stable individual-difference variable. Honorton’s meta-analysis assessed file-drawer vulnerability and reported a large tolerance for unreported null studies, but the single-subject dream series remains too small to distinguish a real selected-subject effect from sampling. The interpretation that selection identifies genuinely psi-conducive individuals is Honorton’s preferred reading and is not established by the dream studies in isolation.
References
- Honorton, C., & Harper, S. L. (1974). Psi-mediated imagery and ideation in an experimental procedure for regulating perceptual input. Journal of the American Society for Psychical Research, 68, 156–68. R001 [Honorton 1974] ↩︎
- Krippner, S., Honorton, C., & Ullman, M. (1972). A second precognitive dream study with Malcolm Bessent. Journal of the American Society for Psychical Research. R002 [Krippner 1972] ↩︎
- Krippner, S., Honorton, C., & Ullman, M. (1973). An experiment in dream telepathy with “The Grateful Dead”. Journal of the American Society of Psychosomatic Dentistry and Medicine, 20(1), 9–17. R003 [Krippner 1973] ↩︎
- Honorton, C. (1972). Reported frequency of dream recall and ESP. Journal of the American Society for Psychical Research, 66, 369–374. R004 [Honorton 1972] ↩︎
- Honorton, C. (1978). Psi and internal attention states: Information retrieval in the ganzfeld (pp. 79–90). Parapsychology Foundation. R005 ↩︎
- Honorton, C., Krippner, S., & Ullman, M. (1973). Telepathic Transmission of Art Prints in Sleep Under Two Conditions. PsycEXTRA Dataset. https://doi.org/10.1037/e465522008-160 R006 [Honorton 1973] ↩︎
- Krippner, S., Ullman, M., & Honorton, C. (1971). A precognitive dream study with a single subject. Journal of the American Society for Psychical Research, 65, 192–203. R007 [Krippner 1971] ↩︎
- Honorton, C. H., & Stump, J. P. (1969). A preliminary study of hypnotically induced clairvoyant dreams. Journal of the American Society for Psychical Research, 63, 175–84. R008 [Honorton 1969] ↩︎
- Honorton, C. H. (1972). Significant factors in hypnotically induced clairvoyant dreams. Journal of the American Society for Psychical Research, 66, 86–102. R009 [Honorton 1972] ↩︎
- Honorton, C. (1981). Psi, internal attention states and the Yoga sutras of Patanjali. Parapsychology Foundation. R010 [Honorton 1981] ↩︎
- Honorton, C., Drucker, S., & and Hermone, H. (1973). Shifts in Subjective State and GESP: A Preliminary Study Under Conditions of Partial Sensory Deprivation. Research in Parapsychology, 1972. R011 [Honorton 1973] ↩︎
- Hyman, R., & Honorton, C. (2019). A Joint Communiqué: The Psi Ganzfeld Controversy. Journal of Parapsychology, 82(3), 108–117. https://doi.org/10.30891/jopar.2018s.01.09 R012 [Hyman 2019] ↩︎
- Berger, R. E., & Honorton, C. (1986). Automated Psi Ganzfeld. Research in Parapsychology 1985, 85–88. R013 [Berger 1986] ↩︎
- Hyman, R., & Honorton, C. (1986). A joint communique: the psi ganzfeld controversy. Journal of Parapsychology, 50(4), 350–364. R014 [Hyman 1986] ↩︎
- Honorton, C., & Ferrari, D. C. (1989). “Future telling”: A meta-analysis of forced-choice precognition experiments, 1935–1987. Journal of Parapsychology, 53(4), 281–308. R015 [Honorton 1989] ↩︎