It's not one with the highest impact but illustrates what it is useful for.
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.86.8417&rep=rep1&type=pdfhttp://www.informaworld.com/smpp/title~content=t775653634~db=allNotice that it references papers in such journals as Journals of the Optical Society of America (e.g. papers by Maloney). These are not trivial citations. Apparently in evolutionary psychology you are forced to look at the environment, such as how sunlight is reflected by a surface, in order to understand how humans see things. It is also a very much falsifiable science.