The Hamlet Project

The podcast I was listening to did a story on Bodily Resonance and it referenced some scientific studies in which they could manipulate people’s biases. They could, in effect, make people less prejudiced by giving them an expanded sense of empathy. They could reduce their bias by making them feel as if they were more like whatever group they had a bias against. They could make a white person, with an implicit bias against a black person, feel as if his hand were black through the rubber hand experiment. And once they’d made him feel as if the black rubber hand were his own hand, they gave him another implicit racial bias test and found him to be less racist.
My question was/is: “Were the participants aware of this shift? Did they perceive it?”