'It was no coincidence that Bergson’s British supporter McDougall had arrived at his conclusions following a close engagement with German physiological psychological research practices was no coincidence. By the middle decades of the nineteenth century, the combined influence of Kant and Naturphilosophie on German scholarship had encouraged an intimate relation to emerge there between the study of the senses through the generation of illusion, and debates surrounding physical and vital explanations of physiological function (Schickore 2006, esp. 385-391; Friedman and Nordmann 2006; Leary 1982).' (452)