This kind of experience is probably very rare, and it sounds as if it could be verbalized. Lack of verbalization, may cause visual distortions, during periods of acute of isolation, whether it be self imposed or not,
It maybe like patients report of seeing relatives, after they floar above their bodies and go through what some consider visual distortions as well.
That these may be projected thought spaces, in retro, it is possible to condense them reversely and arrive at ideograms- which may be thought 'out' in terms of the philosophical notion of universals.
That, that ideogram, re presents the basic structural retro process into the most basic levels of identification of the self, points to an anomaly that has not progressed the self through the level where the self image only re-bounded into itself, blocked from the universilazation of a conceptual self.
Therefore within these bounded spatial areas of the psyche, the blockage forms structural pluralistic group selves, bound by basic phenomenally loaded identifications.
Your experience, was intentional on your part, ad probably happened at a critical point, where the projected ideograms was trying to get through. The girl sitting on your bed, may have been the angry girl, maybe the introjectiob of your mother, at an early age, when she herself was facing her own crisis.
It was her, and the anger you felt, may have been loaded by an early identification.
This experiment as you called it, may have been an anomalie of both of your very early representation of each other.
Your interpretation tried to go beyond this into a concept of what was happening, but because it was a distortion, like a hall of mirrors, that he ltimately led down into a basic mutual indistinct minimal identity, it could only had meaning within the trauma of birth.
What I don't understand, if any of this has some bearing on what was going on in your mind, is why you would hazard to conduct this experiment, as you called it.
My question to you is, is any of this analysis has any relevance to your conclusion xperiment, and if so, do the experiences of early childhood trauma have anything to do with it.
My idea is that universalization on a phenomenally blocked process have any chance of breaking through the conceptual level, and/or, a clear break where the intentional motive of such a breakthrough experience may be formed from the unintentional.
Finally, were you convinced of the reality of the reali visual effect?