This is the authors' abstract. We don't add key points for this paper.
The whole theory of learning and intelligence is in confusion. We know at present nothing of the organic basis of these functions and little enough of either the variety or uniformities of their expression in behavior. The concepts are so poorly defined that it has not been possible even to imagine a program of physiological research which seemed likely to reveal more than superficial relationships.¹
Answers are grounded in this paper and cite their sources.
No takes yet. Share an insight, caveat, or question.
Ralph M. Reitan (1955) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: