Suggestion is inner willingness and agreement, triggering subconscious mechanisms to construct internal data into physical reality.

First test the perceptual version: approximately 240 participants, randomly assigned to four groups: explicit suggestion, subliminal synonymous suggestion, subliminal neutral stimulation, and no suggestion, with an additional visible conditioned positive control; two experiments one week apart, project duration about 12 months. Use hand image detection and forced-choice tasks to estimate sensitivity d′, decision criterion, and subjective disappearance sensation; calibrate masking thresholds individually and test stimulus visibility. Approximately 120 participants undergo fMRI, with pre-registered analyses of the anterior cingulate, default mode network, and visual cortex. The explicit suggestion group is an active comparison group and cannot serve as the sole control. To test changes in external physical reality, one must also pre-specify physical endpoints measurable by independent instruments and unrelated to reports and behavior; the above perceptual experiments cannot adjudicate this strong version.

Explicit and Subliminal Suggestion in Visual Body Perception: A Preregistered Behavioral and fMRI Study

If it is demonstrated that volition without sensorimotor or other physical mediation can alter external objects, this would challenge the assumption of physical causal closure; merely altering perception would not require overturning this assumption.

Karin B. Jensen，卡罗琳斯卡学院疼痛与脑成像研究组; H. Henrik Ehrsson，卡罗琳斯卡学院身体与自我认知神经科学研究组

There are no measurable variables defined for inner agreement, internal data, or physical reality, making it impossible to distinguish expectation, conditioning, and perceptual inference; if agreement is defined as a necessary condition, non-conscious conditioning studies already constrain such an interpretation.

This review is based on the user-provided interpretation; untested indicates that no direct test of the complete assertion was found in this search, not that no one has researched it; all proposed sample sizes are planning magnitudes and must be determined by minimal detectable effect and power simulations; the proposed topics do not presuppose positive results.