Skeptics scoff at the mad rush by stars to come up with exotic baby names as another means for the attention-hungry to grab headlines. But psychologists and others who have worked with high-profile performers say that the naming of children can function as a window into a psyche. Perhaps subconsciously, they say, stars seize the opportunity of parenthood to express their obsessions, ambitions and inner quirks in a way that is, for a change, unscripted and not stage-managed by publicists.