from the lower." It seems likely, however, that, since Caspar Bartholin died in 1629 and Franciscus Sylvius only started medicine in 1632, these words are by either Caspar's son Thomas Bartholin or Franciscus Sylvius himself. In 1663 in his Disputationem Medicarum, Sylvius described the lateral fissure: "Particularly noticeable is the deep fissure or hiatus which begins at the roots of the eyes (oculorum radices) . . . it runs posteriorly above the temples as far as the roots of the brain stem (medulla radices). . . . It divides the cerebrum into an upper, larger part and a lower, smaller part". In popular culture Pop musician David Bowie referred to depth psychologist Carl Jung as "...crashing out with Sylvian" in his lyrics to "Drive In Saturday" released on his 1973 album Aladdin Sane. In 2015, artist Tanja Stark suggested Bowie had drawn a cryptic link between Jung's waking hallucinatory visions (see The Red Book) and the Sylvian fissure, a region discovered by that time to produce hallucinogenic visions and ‘paranormal’ perceptions when electrically stimulated and, presciently in 2006, to generate what neurologists called an ‘illusory shadow person’ or doppelgänger phenomenon; themselves highly charged and recurring Bowie archetypes (Penfield 1955; Arzy et al., 2006). Stark notes another song on that album "Oh You Pretty Things" sings of the hallucinatory spectre of .."a crack in the sky and a hand reaching down to me", evoking the iconic imagery of Michelangelo's painting The Creation of Adam. Stark observes that the American Medical Journal reported that Michelangelo's The Creation of Adam appears to conform deliberately to the neuroanatomical shape of the brain, its Sylvian fissure clearly evident, suggesting Michelangelo may have intentionally conflated theology with neurology ( Meshberger 1990: 1837). Others though, have likened the cloak to the uterus and umbilical cord. Additional images References External links The peri-sylvian aphasias sylvian fissure http://www.uams.edu/radiology/education/residency/diagnostic/pdf/sylvian_cistern_RSNA2003.pdf Sulci (neuroanatomy)