... psychic behavior, to a pleasure-pain psychology. The tropism theory. - The term tropism has been variously and loosely ... which it is based and discussion of the tropism theory from Jennings' viewpoint see Jennings, '04, '05, '06, ' ...

... 381 to encephalitis lethargica, 385 Chemical reactions and tropisms, 94 theory of free will, Ostwald's, 399 ff. Chemotropism, 89 ...

... or small portion of an animal responds. The Theory of Tropisms.—Loeb has formulated a general theory of the ... bilaterally symmetrical animal will serve to illustrate the theory of tropisms. Suppose a stimu- lus, such as light, comes ...

... siol., Bonn, 1907, cxvi, 368-374. -----. Concerning the theory of tropisms. J. Exper. Zool., Bait., 1907, iv, 151- 156- -----• ...

... be interpreted in accordance with this local action theory of tropisms. The latter does not by any means express ... resulting conditions. . . . The prevalence of this local action theory of tropisms as a gen- eral explanation of behavior in ...

... t-succeed-try-try-again” formula. I discussed tropisms and the mechanical theories and objective nomenclatures of the Naples school; Weismannism, ...

... and crevices. Complicating Factors.-However, beautifully as these theories of tropisms work out in a broad general way, there ...

... superable difficulty of proving this inheri- REFLEXES AND TROPISMS 29 tance. If this could be proved their theory would beautifully explain much of evolu- tion, especially ...

... fundamental principles of chemo- therapy, such as the theories regarding the parasitotropism and organo- tropism of chemotherapeutic agents, and the conception of specific ...

... London, G. P. Putnam's Sons, 1916. ---- Forced movements, tropisms, and animal conduet. 209 pp. 8°. Philadelphia & Lon- don, J. B. Lippincott & Co., 1918. ---- Proteins and the theory of colloidal behavior. xi, 292 pp. 8°. New ...