Norman Sieroka: Leibniz, Husserl, and the Brain [Book Review]

Norman Sieroka’s book is about “the systematic, structural relations between phenomenological and (neuro)physiological aspects of perception, consciousness, and time, with a specific focus on hearing” (p. 4), based on Leibniz’s and Husserl’s views. While Sieroka displays a great depth of knowledge in his discussions of these two philosophers, his main aims are not exegetic, but consist, rather, in casting new light on the said philosophical and interdisciplinary issues. However, the scope of his interpretative project is ambitious. There is, on the one hand, Husserl, the founder of phenomenology, for whom perception is, first and foremost, conscious. On the other hand, there is Leibniz, the great rationalist metaphysician, who stands out in his era for bringing center-stage various kinds of unconscious perception. Sieroka effectively reconciles these seemingly very different perspectives, as he argues for numerous points of similarity between them and synthesizes them for mutual enrichment.