Why men marry their moms

(CBS News) The Oedipal complex is alive and well -- sort of.

New research out of Finland suggests that men are likely to date -- and form relationships with -- women who look like their own moms.

Is that normal?

Helen Fisher, a biological anthropologist, and author of "Why Him? Why Her? How to Find and Keep Lasting Love," discussed the study with Anthony Mason and Rebecca Jarvis.

To watch the full interview, click on the video above.