Aubrey de Vere, in 1887? (according to Google Books) or 1849? (according to Christopher Ricks), writing on Keats:
Perhaps we have had no other instance of a bodily constitution so poetical. With him all things were more or less sensational; his mental faculties being, as it were, extended throughout the sensitive part of his nature—as the sense of sight, according to the theory of the Mesmerists, is diffused throughout the body on some occasions of unusual excitement. His body seemed to think; and, on the other hand, he sometimes appears hardly to have known whether he possessed aught but body. His whole nature partook of a sensational character in this respect, namely, that every thought and sentiment came upon him with the suddenness, and appealed to him with the reality of a sensation. It is not the lowest only, but also the loftiest part of our being to which this character of unconsciousness and immediateness belongs. Intuitions and aspirations are spiritual sensations; while the physical perceptions and appetites are bodily intuitions.