@Dima Gouralnik
Conducted: 2026-10-28
At 'purple time' or just as first light is starting, we were sitting -about 30 people- and i had some playing cards. The reverse of the card was a bland blue image, with some fish pictured on them.
~120 minutes after consumption of 380mcg of LSD, i could see the fish swimming on the rear of the cards. Thinking this was a 'cool' LSD hallucination, it did not have the features of traditional LSD visual distortions.
I asked a few friends for what they saw when i showed them the cards, every single person would have their face change, and describe what was being seen. This was compared between people and the same fix were moving in the same directions, for all. It was not something only in the mind, but rather something in the objective reality and visual fields of several others.
Summary
Approximately 30 people viewed the reverse of playing cards during the early LSD experience of one participant, about 120 minutes after an estimated 380 µg dose, with cannabis used during the come-up. The primary report was that fish-like figures appeared to move on the card surfaces and that multiple observers independently described similar changes and motion. The account suggests a potentially reproducible shared visual phenomenon, but the uncontrolled setting and incomplete technical information prevent determining whether the effect arose from an external optical stimulus, suggestion, or altered perception.
Key Findings
- •The principal observer reported moving fish imagery on an otherwise relatively bland blue card design, describing the effect as qualitatively different from their typical LSD visual distortions.
- •Several other observers reportedly described similar visual changes after being shown the cards, including comparable movement directions. This is an important observation, but the degree of independence between reports and the exact wording of descriptions were not documented.
- •The observation occurred approximately 120 minutes after a reported 380 µg LSD dose, with cannabis inhaled during the come-up. Both substances and their interaction are potential confounds.
- •The experiment took place during 'purple time' or first light, when changing illumination, low contrast, adaptation, and glare could substantially affect perception of blue imagery and apparent motion.
- •The supplied technical data list a 430 nm laser and a 1 m projection distance, but the narrative does not clearly state that a laser was used in this observation. No laser power, beam geometry, surface reflectance, camera documentation, or equipment details were provided.
Patterns Identified
Visual Patterns
- • The reported imagery consisted of fish-like forms associated with the printed card design rather than entirely novel objects.
- • The fish were described as swimming or moving, with observers reportedly perceiving similar directions of motion.
- • The effect appeared linked to a patterned, low-detail blue surface and may therefore involve figure-ground organization, motion perception, visual persistence, or psychedelic amplification of existing image features.
- • The available account does not establish whether the perceived motion was continuous, intermittent, dependent on viewing angle, or present on blank control surfaces.
Behavioral Patterns
- • The initial observer actively queried other participants after noticing the effect, creating the possibility of expectation, demand characteristics, or social influence on subsequent reports.
- • Observers were reportedly able to provide similar descriptions, but it is unclear whether they reported spontaneously before discussion or after hearing the first person's interpretation.
- • The account suggests convergence across multiple viewers, but no blinded or independent-response procedure was used.
- • No systematic ratings of intensity, confidence, onset, duration, or observer sobriety were collected.
Technical Patterns
- • The environmental illumination was changing, which is a major uncontrolled variable for color perception, contrast sensitivity, and apparent motion.
- • The listed 430 nm wavelength is inconsistent with the narrative's emphasis on natural sunlight and is not sufficient by itself to characterize the visual stimulus; laser power, divergence, exposure duration, and projection surface are absent.
- • The card design, viewing distance, orientation, angular size, and background illumination were not specified.
- • There was no control condition involving an unpatterned card, a different patterned card, a static image, or observation by sober participants under matched lighting.
Scientific Insights
Scientific Significance
The report is potentially relevant to research on shared perceptual reports during psychedelic states, especially because several observers allegedly described related motion in the same stimulus. However, similar reports do not by themselves demonstrate that a hallucinated object existed in external reality. A common physical stimulus can produce convergent interpretations, and suggestion, conversational priming, ordinary visual illusions, changing illumination, or shared intoxication can produce similar reports. The observation is therefore best treated as a hypothesis-generating case report rather than evidence of an externally generated code or objectively moving imagery.
Methodological Notes
The account has ecological validity because it occurred in a natural social setting and involved multiple observers. Its evidential strength is limited by the absence of dose verification, precise timing, sober controls, independent blinded reports, standardized stimulus presentation, and objective recording. Cannabis co-use, possible intoxication of observers, rapidly changing daylight, and post hoc verbal comparison are important confounds. The terminology 'identical explanation' should be operationalized: future reports should be collected individually before discussion and coded for specific features such as location, direction, speed, shape, and persistence. The apparent mismatch between the narrative and the listed laser parameters should also be resolved before interpreting the event as a laser-related visual phenomenon.
Recommendations
Repeat the observation with preregistered procedures and at least three conditions: LSD/cannabis, LSD without cannabis, and sober controls, ideally with separate groups and matched lighting. Present standardized cards alongside blank, scrambled, and differently patterned controls. Obtain independent written or verbal reports before participants communicate, and record exact descriptions, confidence, timing, and dose information. Keep illumination constant rather than relying on dawn light; document wavelength, power, beam geometry, viewing distance, card reflectance, and camera footage if a laser is involved. Include observers who are blind to the target interpretation, randomize card order, and test whether motion reports persist when the card is removed or replaced. Analyze agreement quantitatively using predefined feature categories and compare it with agreement expected from the printed imagery and chance. Safety procedures should include avoiding direct laser exposure to the eyes, especially in intoxicated participants, and using appropriately classified, low-risk optical equipment.
This analysis is generated by AI and should be considered as supplementary insight. It does not replace professional scientific review or peer evaluation.
LSD
THCA
Visual Effects
saw code of reality
No
code clarity
symbols seen
symbols description
code moving
No
movement direction
size changed
No
characters tiny
No
beam changed
No
beam changes description
Not using a beam for this one. This was natural sun light... many years before these experiments
code behaved like object
No
code persisted without laser
No
persisted after turning off
No
persisted when looked away
No
could influence code
No
influence description
where else seen
Experiment Setup
room lighting
distance feet
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