I imagine if Emma tried analyzing a zombie, then well. I don't think that would go over too well since they're dead in the sense that... They'll show up as life signs if someone had been monitoring them, but their spark (ie their soul) is gone. So they're brainless.

A non-sentient machine like your toaster oven or your hair dryer might show up as something with less-than-human intelligence. ie like a rodent or such.

Sentient robots might produce flashes of DEATH AND DESTRUCTION and crazy since they're literally getting high on a robot Chaos god's blood.

ANYONE ELSE? Up to the players, I guess!