I think the question is, who are you? Does "The Individual" really exist? You could attribute the art to acid, or to the books you've read, or to your last meal. I think surrealism breaks down barriers between self and other, just as it does conscious and unconscious, and there isn't a fixed definition of who the artist is.

It is you making the art. The psychedelics open doors that let your creativity flow, merely a chemical catalyst. The art produced is both a rough interpertation of perception and a degree of subconsncious being splattered onto a canvas. The perception is a perception of your subconscious, or unconscious, which has the valves wide open and is streaming into your consciousness. Psychedelics are the surrealist tool par excellence!

During the psychedelic experience itself, the art created may or may not be great, depending upon your control of the media, but the after effects continue to inspire. They are a long term heavy dose of inspiration, indeed!

As a young man, I came to surrealism through psychedelics. The movement I found matched the experiences I was chemically creating.