Research index·Journal articleCOMMENTAmerican Journal of Psychiatry·1 Jul 1946DOI10.1176/ajp.103.1.123Journal articleCOMMENTAmerican Journal of Psychiatry · 1946 · SubscriptionDOI10.1176/ajp.103.1.123ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionTopicsPsychologyMedicineRelated papersMoreDetailsPublished, publisher, issueSuggest a correction or report