Human Perception and Image Interpretation

Human perception and the ability to interpret and understand visual information in governed by:
Biology-
The physiology of the human visual system and psycho-perceptual processes in the brain have a profound effect on image interpretation.

Culture-
Cultural influences effect an individual's sense of aesthetics and learned processes of image and symbolic interpretation

Convention-
Industry, government, and mass markets create accepted conventions for images and symbols.

See the suggestions for colour given human physiology and psycho-perception experiments as recommended by Foley et al. (1990), pp 601-603;