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 springing from Sylvian's relationship with Yuka Fujii, a photographer, artist and designer, and Karn's former girlfriend. Fujii quickly became an influential figure in Sylvian's life. She was the first person to introduce Sylvian seriously to jazz, which in turn inspired him to follow musical avenues not otherwise open to him. She also encouraged Sylvian to incorporate spiritual discipline into his daily routine. Throughout his solo career, Fujii maintained a large role in the design of artwork for his albums. Japan played their final concerts in December 1982 before dissolving. In 1982, Sylvian released his first solo collaborative effort with Ryuichi