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S. T. Bartholin, Anatome ex omnium veterum Recentiorumque Observationibus Inmprimis Institutionibus b.m. parentis caspari Bartholini ad Circulationem harvejenam et vasa lymphatica quartum renovata, Leyde: ex Officina Hackiana 1673, book III, p.477

, See Descartes, Passions de l'âme, AT XI, p.351

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. From-nicolai-stenonis, Diagram a) shows that if the intermediary between sensory nerve (s) and motor nerve, Gustav Scherz, Hafniae: A. Busck, 1952, t. II, addiment. 24, p.950

, various motor responses: various motions (m) of the eyes (oculorum)

, hand (man.), back (dors), waist (? -'ren'), or feet (pedes), it will trigger the same kind of motor response: the eye muscle will move (o.), the vocal chords will produce [p. 108] a yell of pain (c. for 'clamor'), and the hands (m.) will move to remove the pain, or the feet (p.) will run away. Stenon finally arrives at the following conclusion: This intermediary of mine, between senses and nerves of movement, perceiving and [determining] movement, Conversely, diagram c) shows how various sensory impulses can trigger the same set of motor responses: wherever someone is burned, be it on the head (caput), p.73

, Steno's reasoning rests on the restriction of material properties to extension and, as a consequence of this, on the restriction of bodily modifications to the visible effects of local impulses. It is a striking fact that Steno limits himself to third-person data and that, from those, he infers the existence of something that is precisely not physical but goes beyond the experimental query. According to Steno's critical experimentalism, such a non-extended thing cannot be associated with a specific seat in the brain. When we summarize these various elements

S. Steno and E. , (modified) [orig. Illud mei medium inter sensus et nervos motus, percipiens et determinans motus, non potest esse extensum, alias singuli nervi haberent suum sibi respiciens punctum et semper ad eorundem nervorum impulsum sequeretur idem respondentis musculi motus, trans. in Kardel, Steno, vol.II, p.24

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