Leder et al. (2004) have recently proposed a comprehensive model of visual aes- thetic preference and perception, which includes five processing stages: perceptual analysis of the visual stimulus, implicit memory integration, explicit classification, cognitive mastering, and the emergence of a cognitive state, resulting from the pre- vious stages, and an affective state, that results from the continuous interactions between previous stages and affective systems in the brain. The cognitive state is the source of aesthetic preference, while aesthetic emotion is grounded on the af- fective state
