. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. ^54 BRAINS OF RATS AND MEN The electrically excitable cortex of the opossum has been mapped by a number of physiologists. Gray and Turner (1924) secured the results indicated on Figure 37. It will be noted that the excitable cortex does not coincide with any of the microscopically de- Fig. 36.—Topographic chart of the lateral as
. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. ^54 BRAINS OF RATS AND MEN The electrically excitable cortex of the opossum has been mapped by a number of physiologists. Gray and Turner (1924) secured the results indicated on Figure 37. It will be noted that the excitable cortex does not coincide with any of the microscopically de- Fig. 36.—Topographic chart of the lateral aspect of the cerebral hemisphere of the opossum, showing the arrangement of the structurally- distinct areas. Two and one-half times natural size. After Gray (1924). The rhinic fissure {fs. rh.) marks the boundary between the neopallium above and the pyriform cortex below. termined areas. Nor is the excitable cortex of the skeletal musculature in the preorbital area (Fig. i^Gy a, prorb.) in front of the orbital fissure, an area which corresponds in position and structure with Brod- mann's area gigantopyramidalis (precentral or Ro- landic cortex of man). On the other hand, the arm area (points 1-4 of Fig. 37) lies in or near the postor- bital area (Fig. i^G^ a. porb.)^ which in structure and. 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 Herrick, C. Judson (Charles Judson), 1868-1960. Chicago, Ill. , The University of Chicago press
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