Normally dogs snatch at food; elephants reach out their trunks for it. A man will pull his hand away from a hot plate. These are examples of unconditioned reflexes, fully developed in infancy. They ...

AN interesting connexion is to be found between two recent conceptions of the nervous system, in its development and function. Pavlov's work indicates that the function of the cerebral cortex is the ...

For permission requests, please contact NEJM Reprints at [email protected] Select the format you want to export the citation of this publication.

BECAUSE of the increasing use of emetine hydrochloride in the conditioned-reflex treatment of chronic alcoholism, because the cardiac manifestations of toxicity have not been stressed in the ...

ONE is often grateful for the existence of general surveys which are written for international congresses or commemorative volumes. They provide excellent opportunities of summarizing a subject in a ...