Cultural Anthropology/ Visual Perception Question?

Question

Which of the following optical illusions would people who life in enclosed environments (like dense forests) be susceptible to?

Ponzo Illusion

Sander Parallogram

Muller-Lyer Illusion

Front Horizontal Foreshortening

or another?

Answer 1

I'm not exactly sure, but another kind of study was done with primitive people who had never seen a "movie" before, and their eyes were not trained to watch what was in the foreground, but rather to view the entire bacground of the movie...Interesting!