IMO it's far more likely that people don't agree on what it means to "have an internal monologue" than that people actually bifurcate that dramatically on cognition. Surely there are some people with an actual difference from baseline, but I don't think it's the near-equal split that seems to appear when you just ask people about internal monologue
This is in contrast with aphantasia (complete lack of mental imagery) which can be correlated with outwardly detectable responses. E.g. people who can imagine mental images will dilate pupils when imagining a bright light with eyes closed, while people with aphantasia will not. Not sure there's an analog for internal monologue but if anyone.
This is in contrast with aphantasia (complete lack of mental imagery) which can be correlated with outwardly detectable responses. E.g. people who can imagine mental images will dilate pupils when imagining a bright light with eyes closed, while people with aphantasia will not. Not sure there's an analog for internal monologue but if anyone.