The mode of access to those states differs (e.g., controlled attention vs. passive noticing, verbal labeling vs. non-verbal access)

Like Hill, Prinz (2004) argues that introspection must involve multiple mechanisms, depending both on the target states (e.g., attitudes vs. perceptual experiences) and the particular mode of access to those states. Access might involve controlled attention or it might be more of a passive noticing; it might involve the verbal “captioning” or labeling of experiences or it might involve the kind of non-verbal access that even monkeys have to their mental states. Prinz (2007) sharply distinguishes