. 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. CORTEX AND CORPUS STRIATUM 95. up to normal, the behavior changes and approaches that of a bird deprived of cerebral hemispheres but with normal thalamus. It appears that the thalamus independently of the cerebral hemispheres (that is, when the latter have been completely re- moved) controls reflexes arising from painful stimulation and many of the fundamental vis- ceral re
. 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. CORTEX AND CORPUS STRIATUM 95. up to normal, the behavior changes and approaches that of a bird deprived of cerebral hemispheres but with normal thalamus. It appears that the thalamus independently of the cerebral hemispheres (that is, when the latter have been completely re- moved) controls reflexes arising from painful stimulation and many of the fundamental vis- ceral reflexes (hunger, thirst, body temperature, respiration, ^^^')' Fig. 18.—The dorsal Figure l8 illustrates the ex- surface of the brain of the ternal form of the brain of the P^S^on, showing the elec J T7« ^ trically excitable areas pigeon and leisure 19 a cross- .„ ^ ^ ° 111 (Rogers, 1922^). /, maxi- section through the cerebral mum constriction of pupil hemispheres. The striatum com- of opposite eye; 2, less plex of the bird is unique in P^pill^ry constriction; I , 1 Si bilateral winking; 4. several respects: the great reduc- ^^^^.^^ ^^^ ^^^^.^^ ^^^^ tion of the olfactory component, (from underlying ectostri- the enormous increase in thala- atum); 5, depression of mic connections (both somatic ^^^^^' °^ ^°^^^^^^ ^"^ and visceral), the reduction to insignificant proportions of the overlying cerebral cortex. Rogers (1922) found in decerebrating pigeons that if the cores of the hemispheres (, the mesostriata of Fig. 19) are left undisturbed the remainder of 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 Herrick, C. Judson (Charles Judson), 1868-1960. Chicago, Ill. , The University of Chicago press
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