Investigation map
Separate variables before synthesis
Start with a refusal. Imagery strength, phenomenological control, source
monitoring, absorption, porosity, hypnotizability, psychedelic response, and
ritual meaning are not interchangeable names for one hidden faculty. They can
overlap in real people and real settings, but each one needs its own evidence
route
(Kay et al., 2022;
Lush et al., 2020;
Luhrmann et al., 2021).
That separation makes the topic more useful. Imagery research can be checked
against pupillometry, binocular rivalry, lesion cases, prevalence estimates,
drawing, neuroimaging, and single-neuron work
(Keogh and Pearson, 2018;
Keogh et al., 2020;
Wadia et al., 2026).
Phenomenological control can be checked against response to imaginative
suggestion and expectancy-sensitive experiments. Source monitoring can be
checked against reality-monitoring and subjective-signal-strength work
(Lush et al., 2021;
Dijkstra and Fleming, 2023).
Porosity and absorption can be checked against cross-cultural and ethnographic
work on spiritual presence. Induced-vision systems can be checked against
stimulus parameters and reported phenomenology
(Lifshitz et al., 2019;
Hewitt et al., 2025).
The synthesis comes after the separation. Vivid imagers, hypnotic responders,
mystics, psychedelic users, tulpamancers, and VR participants should not be
treated as the same kind of person. The better question is how particular
combinations of person, practice, stimulus, setting, and interpretation move
experience
(Studerus et al., 2012;
Luhrmann et al., 2023;
Suzuki et al., 2017).
Start here
Use this page when you need to separate expectation, imagery, source
monitoring, stimulus effects, and cultural framing without reducing
experience to fakery.
Variables kept apart
- Imagery vividness, location, modality, and controllability
- Phenomenological control and response to imaginative suggestion
- Source monitoring and reality judgment
- Absorption as immersive attentional style
- Porosity as a culturally taught model of mind-world permeability
- Stimulus conditions: ganzfeld, ganzflicker, stroboscopic light, VR, and DeepDream-like systems
- Meaning-making frames: prayer, ritual, technopaganism, cyberdelics, and therapeutic context
Claims held back
- A single proven visionary type remains unestablished.
- Expectation does not mean fakery.
- Induced vision remains narrower than full psychedelic experience.
- Digital or ritual settings need direct evidence before clinical claims.
- Transhistorical shaman-prophet-artist-scientist bridges need stronger historical sources.
Synthesis
Changing experience without flattening it
Experience is shapeable, but it is not infinitely plastic. The hard question is
at the boundary between expectation, imagery, stimulus, source judgment, and
culture.
Phenomenological control is a construct, not a master key
The term is useful because it names a real methodological problem. People can
generate experiences in response to imaginative suggestion, expectation, and
perceived task demands, and some of those experiences can feel involuntary.
Lush and colleagues make that problem visible in mirror-sensory and rubber-hand
contexts, while the Phenomenological Control Scale extends the construct beyond
explicitly hypnotic framing
(Lush et al., 2020;
Lush et al., 2021;
Lush et al., 2023).
Source monitoring adds a nearby but different problem. A person may generate an
image, sensation, or felt presence and still need to judge where it came from.
Dijkstra's reality-monitoring work belongs there. This is why vividness,
expectation, absorption, and reality judgment need separate columns
(Dijkstra et al., 2022;
Dijkstra and Fleming, 2023).
The limit matters just as much. Slater and Ehrsson's reanalysis of rubber-hand
data argues that synchronous multisensory stimulation remains the dominant
driver even when hypnotisability and expectations are considered. That is the
right model for the whole topic: phenomenological control can shape
experience, but it does not erase stimulus structure, body-based evidence, or
task-specific mechanisms
(Slater and Ehrsson, 2022).
Imagery is measurable, divided, and historically old
The imagery line begins with a conservative claim. People differ in mental
imagery, and that difference predates the modern labels aphantasia
and hyperphantasia. Galton's nineteenth-century survey already
recorded sharp variation and mutual disbelief between vivid and weak imagers.
Contemporary work adds better handles: binocular-rivalry priming, pupillary
response, cortical excitability, lesion cases, prevalence estimates, drawing
and memory profiles, and now single-neuron evidence that imagery and perception
can partially reuse object codes
(Galton, 1880;
Keogh and Pearson, 2018;
Kay et al., 2022;
Thorudottir et al., 2020;
Wadia et al., 2026).
Those findings do not collapse the field into one vividness ladder. A person
can have pictorial imagery without seeing it as if with the eyes. Another can
report externally projected imagery, visual noise, hypnagogic effects, or
presence without fitting cleanly into aphantasia or hyperphantasia. Location,
vividness, modality, control, voluntariness, and context all need to be kept
separate long enough to be measured
(Wright et al., 2024;
Schwarzkopf et al., 2026;
Azanon et al., 2025).
Porosity is social as well as personal
The cultural evidence does not say that belief simply invents perception. It
says that communities teach people how to attend to inner life, how to interpret
bodily or imaginal events, and how porous the boundary between mind and world is
allowed to feel. Luhrmann's work on prayer and spiritual presence shows that
absorption and porosity can both matter, but they matter differently: one is
closer to immersive attentional style, the other to culturally taught
mind-world boundaries
(Luhrmann et al., 2010;
Luhrmann and Morgain, 2012;
Luhrmann et al., 2021).
That makes control distributed. A report may be shaped by a person, teacher,
ritual, interface, stimulus, room, dose, group, and story. Prayer and
tulpamancy are useful comparison lanes here because both involve practice,
attention, and discernment, but neither should be reduced to phenomenological
control. A prepared frame can meet a real sensory perturbation, and the
resulting experience can be sincere, trained, and constrained at the same time
(Luhrmann et al., 2023;
Mikles and Laycock, 2015).
Expectation is not a synonym for fakery
Expectation is often used too crudely. In one register it becomes a debunking
weapon: the participant expected something, therefore the report is not real.
In another register it becomes a magic explanation: set the frame correctly and
anything can happen. The evidence supports neither move. It supports the narrower
claim that expectation, suggestion, and task demand can help generate real
reported experience, and that the route into the report is part of the
phenomenon
(Lush et al., 2023;
Dienes and Lush, 2023).
Varga's 2025 hypnosis-imagery result is useful here because it points away from
trait simplification. General imagery vividness outside hypnosis did not do the
work in that abstract-level record; state imagery during hypnosis did. That
pattern fits the broader pattern: context, instruction, attention, and engagement
can matter as much as stable trait labels
(Varga et al., 2025).
Engineered vision is the laboratory edge
Ganzfeld, ganzflicker, stroboscopic light, recursive imagery, DeepDream, and
VR hallucination designs make the question experimentally concrete. They show
that visual phenomenology can be perturbed under describable conditions. Timing,
luminance, color, field structure, rhythmicity, imagery ability, safety
screening, and expectation all matter. This is why the induced-vision line is
valuable: the stimulus can be specified
(Wackermann et al., 2008;
Konigsmark et al., 2021;
Hewitt et al., 2025;
Amaya et al., 2025).
The limit is equally important. Flicker, ganzfeld, VR, and DeepDream-like
systems do not prove spiritual perception, universal trainability, clinical
efficacy, or psychedelic equivalence. They are tools for asking sharper
questions about how sensory input, expectation, attention, imagery, and meaning
meet. Suzuki's newer C x G x D proposal strengthens that rule by separating
feature exposure, generative constraint, and discriminator thresholds. The
related Deep Dream page follows this
same rule: partial visual overlap is not the same as a full altered-state
model
(Suzuki et al., 2017;
Suzuki, 2026).
Psychedelics and VR need their own evidence lane
Psychedelic response is partly shaped by dose, person, and setting, but that
does not turn psychedelics into hypnosis or phenomenological control. The same
caution applies to psychedelic-inspired VR. Open-label feasibility work and
group VR studies show that immersive systems can alter selected experiences and
measures, but they should not be described as therapeutic efficacy by analogy
alone
(Studerus et al., 2012;
Kaup et al., 2023;
Glowacki et al., 2022).
Sensory dimensions of psychedelic experience deserve attention, but the sensory
lane is only one part of the altered-state picture
(Aqil and Roseman, 2023).
Meaning-making remains the open historical question
The evidence can already say that imagery, absorption, expectation, perceptual
perturbation, hypnosis, and psychedelic response are shaped by both person and
context. It can also say, with historical caution, that magic, religion, and
practical knowledge do not form a simple ladder where one replaces the other.
They can coexist, interlace, and address different kinds of uncertainty
(Malinowski, 1948;
Tambiah, 1990).
What remains open is the stronger role question: whether societies repeatedly
selected or cultivated people whose experience more readily moved toward
presence, vision, bodily response, or conviction. That question belongs in the
comparison, but it should stay marked as a hypothesis until the historical record
is stronger. Late-modern media-mysticism sources help with a narrower history
of cybernetics, psychedelia, occulture, and digital spirituality, not with an
uninterrupted ancient lineage
(Davis, 2019;
Hartogsohn, 2023;
Dos Santos, 2023).