[30% down the page] This split-second eye bias can have some important consequences, according to [Prof.] Kawakami. When we don’t make eye contact with someone, we’re less likely to be able to decode their emotions, and less willing to trust or remember that person.
"Even though it might happen within the first 100th of a second, we know that downstream that can tell us whether you might hire a person, whether you have positive or negative associations with that person and whether you’re willing to interact with that person," Kawakami explained.
Which definition, if any, applies,from http://www.merriam-webster.com/dictionary/downstream or http://www.oxforddictionaries.com/definition/english/downstream?