 So the question is: does mental imagery represent the way pictures do or the way sentences do? This was the central question of the so-called ‘Imagery Debate’ of the 1980s (in the imagistic corner: Kosslyn 1980, in the propositional corner: Pylyshyn 1981, see Tye 1991 for a good summary). It was this debate that made philosophers take the concept of mental imagery seriously again, after a long period of behaviorist-inspired skepticism about anything imagery-related.