. Comparative physiology of the brain and comparative psychology. Brain; Psychology, Comparative. 260 COMPARATIVE PHYSIOLOGY OF THE BRAIN 39), where the fibres from and to the brachial segment of the cord of a dog enter the cortex, contractions of certain muscles of the fore- leg must follow. If we stimulate the region A (Fig. 39), which is connected with the sensory or motor ganglia of the eyes, motions of the latter must be produced. It is, moreover, evident that if we injure the spot D in the cortex we must get some- what different after-effects from those produced when A is injured. In the
. Comparative physiology of the brain and comparative psychology. Brain; Psychology, Comparative. 260 COMPARATIVE PHYSIOLOGY OF THE BRAIN 39), where the fibres from and to the brachial segment of the cord of a dog enter the cortex, contractions of certain muscles of the fore- leg must follow. If we stimulate the region A (Fig. 39), which is connected with the sensory or motor ganglia of the eyes, motions of the latter must be produced. It is, moreover, evident that if we injure the spot D in the cortex we must get some- what different after-effects from those produced when A is injured. In the former case we must expect motor disturbances in the use of FIG. 39. CEREBRAL HEMISPHERES the fore-leg, in the latter dis- OF A DOG. , ^, . A, optical region; D, brachial region; tUrbattCCS Of V1S1OH. G, region of the hind-leg. (After Jj- J f COUrSC, HOt tO Munk.) be expected that the distri- bution of segmental fibres on the cortex follows min- utely the arrangement of the ganglia in the spinal cord. Displacements of elements occur in the cerebral hemispheres during the process of growth. This is indicated by the formation of folds formed on the surface. It is possible that not all the segmental ganglia send fibres directly to the hemispheres, and it is possible that certain ganglia are connected with the cortex at more than one spot or region. From the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Loeb, Jacques, 1859-1924. New York, G. P. Putman's Sons; [etc. , etc. ]
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