Abstract
This investigation was undertaken to answer a question raised by Bates (see record 1926-07508-001) and by Hull (see record 1926-08095-001). In determining what effect tobacco has on pulse rate and blood pressure, what part of an increase or decrease is attributable to physiological causes and what part to psychological causes? Hull and O'Shea (see record 192315015-0003) report work carried on in a rather careful manner, although there are in their work some assumptions which can hardly be justified in light of psychological findings and their own statements. The results which they obtained are quite interesting and are partly substantiated by the results obtained in this investigation. The specific point for consideration in this article is the results obtained by Hull on the effect of tobacco on pulse rate. Based on the current experiment with three hypnotized subjects, the current author concludes that the increase in blood pressure and pulse rate which is produced by smoking is caused by physiological conditions rather than by psychical conditions. There is also an increase in the intensity of the heart beat which is brought out by the smoking of tobacco. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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