Well I think that on either side of the argument you are going to be mired in pseudoscience, since psychology is largely a pseudoscience, with the exception of physiological psychology.
So, here are some interesting articles nonetheless, pseudoscience not withstanding:
http://www.origins.org/articles/vitz_psychologyofatheism.html I am not going into this to bore you with parts of my life story, but to note that through reflection on my own experience it is now clear to me that my reasons for becoming and for remaining an atheist-skeptic from about age 18 to 38 were superficial, irrational, and largely without intellectual or moral integrity. Furthermore, I am convinced that my motives were, and still are, commonplace today among intellectuals, especially social scientists.
and more: (very psychoanalytical which is ironic given Freud's views on Religion)
Let me conclude by noting that however prevalent the superficial motives for being an atheist, there still remain in many instances the deep and disturbing psychological sources as well. However easy it may be to state the hypothesis of the "defective father," we must not forget the difficulty, the pain, and complexity that lie behind each individual case. And for those whose atheism has been conditioned by a father who rejected, who denied, who hated, who manipulated, or who physically or sexually abused them, there must be understanding and compassion. Certainly for a child to be forced to hate his own father-or even to despair because of his father's weaknesses is a great tragedy. After all, the child only wants to love his father. For any unbeliever whose atheism is grounded in such experience, the believer, blessed by God's love, should pray most especially that ultimately they will both meet in heaven. Meet and embrace and experience great joy. If so, perhaps the former atheist will experience even more joy than the believer. For, in addition to the happiness of the believer, the atheist will have that extra increment that comes from his surprise at finding himself surrounded by joy in, of all places, his Father's house.
And here's a book by the same author:
http://images.amazon.com/images/P/1890626120.01._BO2,204,203,200_PIlitb-dp-500-arrow,TopRight,32,-59_AA240_SH20_SCLZZZZZZZ_.jpgFinally, I concede, that there aren't any easily found scientific papers on atheism and narcissism
so, you win.
But that doesn't mean that intuitively atheism doesn't seem to be a manifestation of narcissim
I think that perhaps the fields of scholarly psychology and sociology are filled with atheists who don't want to look at their narcissism?
:shrug: