Scintillating scotoma is the most common visual aura preceding migraine and was first described by 19th-century physician Hubert Airy (1838â1903). It is often confused with ocular migraine, which originates in the eyeball or socket.any variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the visual field, which prevents vision within the scotoma area.
Spider monkeys live in a biome with many trees. They move around by swinging from tree to tree. Spider monkeys do not build a nest or take shelter in a cave. Instead, they sle â¦ ep high up in a tree on a wide branch. Spider monkeys mostly eat fruits and nuts.
Monkey Species Index. Spider Monkey. There are 7 known sub species of the Spider Monkey. They belong to the class of New World Monkeys. They are believed to be the biggest of all the different Monkeys in that particular class. Monkey Species. There are more than 260 species of Monkeys found in the world today.