. Anatomical, phylogenetical and clinical studies on the central nervous system. Nervous system. THE PROJECTION OF THE RETINA IN THE BRAIN The subject of my first Herter lecture is the projection of the retina in the brain. Several of your scientific workers in America have given much thought to this problem. I refer, for example, to the studies of Adolf Meyer, Gushing and G. E. de Schweinitz. I like very much to speak on this subject, because this problem has attracted me very much for several years. There is however one difficulty. I must give my lecture in a language, which is not mine and
. Anatomical, phylogenetical and clinical studies on the central nervous system. Nervous system. THE PROJECTION OF THE RETINA IN THE BRAIN The subject of my first Herter lecture is the projection of the retina in the brain. Several of your scientific workers in America have given much thought to this problem. I refer, for example, to the studies of Adolf Meyer, Gushing and G. E. de Schweinitz. I like very much to speak on this subject, because this problem has attracted me very much for several years. There is however one difficulty. I must give my lecture in a language, which is not mine and which, I fear, is also not yours. I have therefore brought a number of plates and lanternshdes with me. They speak an inter- national language and hence I hope you can understand me. To introduce you to the problem I have to remind you that the experiences of the Great War have renewed our interest in the cerebral organization of the optic pathways. We have only to recall the careful investigations of Gordon Holmes and Lister in England, of Pierre Marie and Chatelin in France and of Axenfeld and others in Germany. The optic stimuli are caught by the retina, thus reaching the layer of the ganglion cells. These cells send their fibres into the brain, forming in the beginning the optic nerves. These nerves, in lower animals, wholly cross. This is so in fishes, amphibians, reptiles and in birds. It is also the case in some groups of mammals. In these classes of vertebrates, however, it is usually different. In rabbits, for instance, some of the optic fibres do not cross, but remain on the same side of the brain. In monkeys and also in men, as you know, the number of non-crossing fibres is much larger. Centuries ago Newton emphasised the fact that the optic nerves in men only partially cross in the chiasma. This was a theory he had deduced in his studyroom. His 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili
Size: 1656px × 1509px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookco, bookdecade1920, booksubjectnervoussystem
