I'm a natural cynic, and I didn't get stuck to the chair, but I did feel a bit heavy after.
Perhaps it was just relaxation therapy.
I couldn't help thinking there was a feint image behind the swirling lines. Imagine that the white is opaque, and the grey slightly transparent and there's something behind. Freeze-framing doesn't help, as you need the movement to see what's behind. If I get some free time I might try some image processing on multiple frames to see if there's anything there.
I thought the subliminal was too obvious, and was probably there to throw you. It was only one frame long, but was white while the studio was dark. If you wanted it to be subliminal it would be a similar shade, not like a camera flash.