I love your post, you talk about a very interesting topic, especially for me who studies visual communication :)
You put in light a very anknown subjetc, and I would like to add a clarification: I think that we persist in a selective way according to the environment in which we live.
Some people woulf first see the lamp, some other something else...
And i think that depends on the accommodation to sex. (praticing or watching lol )
Zebu
RE: Perception.