Ah, I see what you're saying. Sorry for the confusion.
In some sense, I suspect the two aren't totally distinguishable, because I expect the underlying mechanism is at least partly an in-group vs out-group mechanism. Indeed, the social justice technical term "othering" is about how people take actual present people and dehumanize them by activating negative intergroup biases.
In this case, the researchers used in-person surveys to judge that the names specifically were perceived as black, rather than merely unknown.
In some sense, I suspect the two aren't totally distinguishable, because I expect the underlying mechanism is at least partly an in-group vs out-group mechanism. Indeed, the social justice technical term "othering" is about how people take actual present people and dehumanize them by activating negative intergroup biases.
In this case, the researchers used in-person surveys to judge that the names specifically were perceived as black, rather than merely unknown.