Visual imagery - seeing in the absence of a visual stimulus, mental imagery - the ability to recreate the sensory world in the absence of physical stimuli; 1920s through the 1950s pushed the study of imagery out of mainstream psychology: the founder of behaviorism, john watson, described images as unproven and. Mythological (1928), and therefore not worthy of study. Imagery and the cognitive revolution: shepard and metzler"s experiment demonstrated the phenomenon of mental rotation. People know that in the real world it takes longer to travel longer distances, so, Pylyshyn suggests, they simulate this result in kosslyn"s experiment: this is called the tacit knowledge explanation because it states that subjects unconsciously use knowledge about the world in making their judgments, to counter the tacit knowledge explanation of. Imagery neurons in the brain: kreiman et al (2000) were able to study patients who had electrodes implanted in various areas in their medial temporal lobe, which includes the hippocampus and the amygdala.