Interaction of color and geometric cues in depth perception: when does "red" mean "near"?
Psychological Research (2004) - Comment
pubmed: 14872343  doi: 10.1007/s00426-003-0167-0  issn: 0340-0727  issn: 1430-2772 

Christophe R. C. Guibal, Birgitta Dresp