Longitudinal fissure Longitudinal fissure The longitudinal fissure (or cerebral fissure, median longitudinal fissure, or interhemispheric fissure) is the deep groove that separates the two hemispheres of the vertebrate brain. The medial surfaces of the two hemispheres are as similarly convoluted by gyri and sulci as is the outer surface of the brain. It is thought that a majority of existing animals, including Homo sapiens, have evolved from a common wormlike ancestor that lived around 600 million years ago, called the urbilaterian. A bilaterian animal is one that has symmetrical left and right body halves. While it is still debated whether this species
David Sylvian the installation "Redemption – Approaching Silence". The exhibition was held at the P3 Art and Environment centre in Shinjuku, Tokyo, and ran from 30 August to 18 September 1994. The accompanying music was composed by Sylvian, with text written and recited by Fripp. In the late summer of 1995, Sylvian undertook a one-man solo tour which he called 'Slow Fire – A Personal Retrospective'. A period of relative musical inactivity followed, during which Sylvian and Ingrid Chavez moved from Minnesota to the Napa Valley. Chavez had given birth to two daughters, Ameera-Daya (born 1993) and Isobel (born 1997), and pursued