Word: pavloffs
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Dates: during 1923-1923
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Another brick in the pile of evidence that is gradually being built up by Kammerer, Guyer and others in favor of the theory of " inheritance of acquired characteristics" (TIME, May 12) has been laid by Professor Ivan P. Pavloff, great Russian physiologist, who visited America last Summer (TIME, July 23). In an address given at the Battle Creek Sanitarium and published in Science last week, he described his latest researches on "conditioned reflexes " in animals...
...Pavloff's newest experiments, not yet completed, are on white mice. The rodents were trained to run to their feeding place at the sound of an electric bell. It took 300 repetitions of the feeding-ringing combination to make the mice run at the sound of the bell. The same thing was tried on the offspring of the original mice, and they learned the connection after only 100 repetitions. The third generation absorbed the theory after 30 lessons, the fourth required 10 repetitions and the fifth but five. The sixth generation will be tested after Dr. Pavloff...
...Ivan Petrovitch Pavloff (1848-), Russian physiologist, student of the 'digestive system (TIME, July...
...another brilliant experiment, following the investigations of von Bischoff and Heidenhain, Pavloff was able to produce a fistula, or tube, connecting the stomach of a dog with the surface, keeping the animal free from pain and under the most normal conditions possible. By this means he studied the flow of the gastric and pancreatic juices under varying conditions, proving that the secretions vary in quantity, rate and digestive power with the nature of the food...
...Pavloff was given the Nobel Prize for medicine in 1904 for the work embodied in his lectures delivered in 1897 on The Work of the Digestive Glands, which has been translated into German, French, English. It has been the inspiration of similar researches by Starling in England and Cannon in the United States. He has received scientific honors and decorations in practically every civilized nation...