Lateral sulcus Lateral sulcus The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent features of the human brain. The lateral sulcus is a deep fissure in each hemisphere that separates the frontal and parietal lobes from the temporal lobe. The insular cortex lies deep within the lateral sulcus. The lateral sulcus divides both the frontal lobe and parietal lobe above from the temporal lobe below. It is in both hemispheres of the brain. The lateral sulcus is one of the earliest-developing sulci of the human brain. It first appears around the fourteenth gestational week. The
David Sylvian Fripp invited Sylvian to sing with progressive rock stalwarts King Crimson. Sylvian declined the invitation, but he and Fripp recorded the album "The First Day" released in July 1993. Something of a departure for Sylvian, the album melded Sylvian's philosophical lyrics to funk workouts and aggressive rock stylings very much in the mould of Fripp's King Crimson. To capitalise on the album's success, the musicians went back out on the road in the autumn of 1993. A live recording, called "" and released in 1994, was culled from the final shows of the tour. Sylvian and Fripp's final collaboration was