Ask a roomful of people whether they would act to prevent a sexual assault and nearly all of them will raise their hands.

Yet both real life examples and social psychological experiments show that when we witness a wrongful act with other bystanders most of us, in fact, do nothing. This isn't because we are bad people, but is due, rather, to a variety of factors that are often collectively referred to as the "bystander effect."

Some of these factors are external and situation specific. But most are hard-wired instincts that can turn even the most well-intentioned of us into passive bystanders when we most want to--and think we ought to--act.

In this talk, Jackie explains the psychology of bystander inaction and shows how we can overcome these instincts to become active bystanders. Just as importantly, she explains why people engage--even unconsciously--in victim blaming and what we can do to stop it.