knuds1b

I'm getting close (a semester away) to completing my M.S. in Experimental Psychology. I'm looking into PhD programs to continue on, and my main area/field of interest is the psychology of advertisements, so I'm thinking a program in Consumer Psychology might be what I'm after. I wouldn't be against a PhD in Experimental Psychology, but after looking around, it seems like most of them won't want me, because many programs are those combined M.S./PhD track programs, and they don't like to take students just for the PhD portion. I've also seen some suggestions on this site to perhaps go into a Marketing PhD program, rather than a psychology-based program. My desired career involves working for a private company to help them develop effective advertisements, by designing and carrying out research on consumers. You know how McDonald's figured out many years ago that the colors yellow and red seem to stimulate hunger, hence their red and yellow logo? That's the sort of thing I'd like to do. Any advice on what I might choose, or should be looking into?