. Popular science monthly. lvian fissure ;Wundt adds that perhaps the Island of Reil should be joined to thisterritory. We are now brought to consider directly the relation of portionsof the brain to specific states of consciousness. I shall state the loca-tion of the senses as formerly made by Ferrier and by Munk, and willgive a specimen experiment from each investigator. Sight is locatedby Ferrier in the angular gyrus (A, Fig. 1), by Munk in the occipitallobe (O, Fig. 1) ; hearing, by both, in the temporo-sphenoidal lobe(H, Fig. 1). Ferrier places smell and taste in the lower and inneraspect
. Popular science monthly. lvian fissure ;Wundt adds that perhaps the Island of Reil should be joined to thisterritory. We are now brought to consider directly the relation of portionsof the brain to specific states of consciousness. I shall state the loca-tion of the senses as formerly made by Ferrier and by Munk, and willgive a specimen experiment from each investigator. Sight is locatedby Ferrier in the angular gyrus (A, Fig. 1), by Munk in the occipitallobe (O, Fig. 1) ; hearing, by both, in the temporo-sphenoidal lobe(H, Fig. 1). Ferrier places smell and taste in the lower and inneraspect of the temporo-sphenoidal lobe (tJ, Fig. 4). These centers arenot distinguished by Munk. Ferrier names also a tactile center (H,Fig. 4). This he locates in what is known as the hippocampal we separate the hemispheres from one another by cutting throughthe corpus callosum, we shall obtain a view of the median aspect ofthe hemispheres (see Fig. 4). Attention has been called to the fact that Munk disagrees with all. Fig 4.—Median View of Eight Hemispheke of Human Brain. (Ecker.) c c, Corpne cnllo-snm, coniiectinsr band between the hemispheres, longitudinally diviiled; w, lower and innerportion of temporo-sphenoidal lobe, center of smell, according to Ferrier; H, hippocampalfold, touch. the authorities, except SchiflF, in maintaining that a destruction of themotor centers destroys sensibility. Munk, therefore, does not indicatea special tactile center, but finds centers of feeling for head, neck, andback. Ferriers experiment with regard to vision was as follows : Hechloroformed the animal, a monkey, and destroyed the angular gyrus THE NERVOUS SYSTEM AND CONSCIOUSNESS, j^ on the left hemisphere. He bandaged the left eye, and allowed theanimal to recover from the chloroform. Upon recovery it began togrope about a little in loco, perfectly alert, but would not move fromits position ; hearing and the other senses were not affected, for therewas always a prompt reply to sti
Size: 1965px × 1271px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
