Visual Patterns

• • Absence of persistent or structured code-like imagery was reported across all tested laser wavelengths.
• • No wavelength-specific difference in COR manifestation was identified.
• • Visual effects consisted mainly of tracers rather than symbolic, geometric, or surface-integrated patterns.
• • The absence of reported COR occurred despite a strong alteration in consciousness, suggesting that profound dissociation alone was not sufficient to produce the target phenomenon under these conditions.

Behavioral Patterns

• • The experimenter experienced substantial impairment in reality testing and self/identity stability, described as ego death or loss of grip with reality.
• • Severe dissociation and anesthesia likely reduced the ability to sustain attention on the projection and to make reliable contemporaneous judgments.
• • Motor incoordination and altered gait were reported during intoxication.
• • The experimenter was nevertheless able to form a clear overall judgment that COR was not observed, though the reliability of detailed perceptual reporting may have been limited by the intensity of intoxication.

Technical Patterns

• • The setup included 650 nm, 488 nm, and 408 nm lasers with a diffraction grating, but detailed power and projection-distance specifications were provided only for the 650 nm laser: 1 mW and 5 m, respectively.
• • The experiment used a multi-wavelength comparison, which is useful for testing whether COR depends specifically on red laser light; however, the available data do not establish whether all wavelengths had equivalent optical power, beam geometry, divergence, or projection conditions.
• • No formal baseline, sober control condition, blinding, repeated trials, standardized surface description, or objective recording of the projected patterns was reported.
• • The experiment was conducted under a high-intensity drug state, creating a substantial confound between drug effects, attentional capacity, and the ability to evaluate subtle visual phenomena.

Scientific Significance

The primary significance is a well-defined negative observation: 2-fluorodeschloroketamine did not produce reported COR under the tested dose, route, setting, and laser conditions. This is compatible with the possibility that COR depends on mechanisms not engaged by this compound, or requires a particular combination of serotonergic, perceptual, attentional, and contextual factors. However, the result is not a strong test of the NMDA-antagonist hypothesis because it is based on one participant, one exposure, an uncontrolled dose, and a markedly impaired state. The experiment also illustrates that intense alterations in consciousness and visual tracers can occur without the specific structured visual phenomenon being investigated.

Methodological Notes

Strengths include testing a compound with a stated mechanistic rationale, using multiple laser wavelengths, documenting approximate onset and duration, and distinguishing COR from nonspecific visual effects such as tracers. Important limitations include the single-subject design; absence of placebo or sober comparison; lack of dose verification and pharmacokinetic measures; incomplete optical specifications for the 488 nm and 408 nm lasers; possible variation in diffraction-grating alignment, projection surface, ambient illumination, and viewing distance; and reliance on retrospective self-report during severe dissociation. The term 'no code' would be more reliable if defined in advance using explicit criteria, such as symbolic complexity, persistence, apparent interaction, spatial relationship to the diffraction pattern, and independent observer or video confirmation. The severe loss of reality testing also raises ethical and safety concerns and may compromise data quality.

Recommendations

Future work should use lower-risk, carefully supervised, preregistered protocols with explicit stopping criteria and medical screening. Standardize and report wavelength, optical power at the subject, beam diameter, divergence, grating type, projection distance, surface material, ambient light, viewing duration, and viewing geometry for every laser. Include sober baseline and placebo/control sessions, repeated observations, prospective time-stamped reports, and—where feasible—independent observers or video capture of the projection and participant responses. Separate measurements of general visual effects from COR-specific features using a predefined rating scale. If comparing drug classes, use multiple participants and matched session conditions rather than inferring mechanism from a single negative result. Laser exposure should be managed conservatively: avoid eye exposure, reflections, and uncontrolled high-risk beams, particularly with blue and violet wavelengths, and use appropriate optical-safety procedures.