They are being programmed to take sensory input and adapt responses accordingly. The researcher in charge of the operation says the behavior will be something akin to babies learning from external stimuli.

I find this kind of horrifying. I’ve been hearing my entire life about how robots are going to take over the world and then “The Matrix” happened. I don’t want evil robot overlords. Someone please put an end to this.

Emotion robots learn from people [BBC]