joining us from chicago is northwestern researcher susan floorsack.ounds great for people who want to reduce their unconscious bias. we're in a world where we're still argue whether there is unconscious bias. what do we say to people who fear that this comes across as mind control which can be used to increase someone's bias? >> i want to clarify a small point before speaking. what we're doing during sleep is actually reactivating previous learned information. >> okay. >> so people are going through this training while awake while conscious of what they're doing. we've done these studies before with different types of information, spatial memory, memory for vocabulary words. these are for the antibias training sessions. >> let me be sure, you are reinforcing something that people have learned while awake. ali went to sleep and let's put notions in his head, it's not that? >> correct. through the use of those sounds that you heard accompanying those training sessions before, what it's doing is taking the brain, putting it in a state where memories can