"Despite the well-known idiom to 'not judge a book by its cover,' the present research shows that such judgments about the cover are good proxies for judgments about the book—even after reading it," says Zayas, who is chairing a session at the SPSP conference called "When to Judge a Book by Its Cover: Timing, Context, and Individual Differences in First Impressions."

Zayas' new research shows that initial impressions based on viewing a single photograph accurately predict how a person will feel about the other person in a live interaction that takes place more than 1 month later. "Moreover, participants' initial judgments based on the photograph colored personality judgments following the interaction," Zayas says. "The results showed that initial liking judgments based on a photograph remained unchanged even after obtaining more information about a person via an actual live interaction."

Read more at: http://phys.org/news/2014-02-fact.html