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 which Sylvian finished especially for the projects. Sylvian left Virgin Records and launched his own independent label, Samadhi Sound. He released the album "Blemish". A fusion of styles, including jazz and electronica, the tour enabled Sylvian to perform music from the Nine Horses project, as well as various selections from his back catalogue. Blemish included contributions from Christian Fennesz and Derek Bailey. Sylvian used a different approach with this album. He has said about his process, "With Blemish I started each day in the studio with a very simple improvisation on guitar. Once recorded, I'd listen back and use cues