Download or read book Basic Psychoanalytic Concepts on the Theory of Instincts written by Humberto Nagera and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1970, this volume describes in condensed but detailed form Freud's development of the theory of instincts. As is well known, Freud reformulated and amplified his theory of instincts at several points during his lifetime. In this volume the reader will be able to follow the development of Freud's thought from his initial discovery of the duality of 'sexual' and 'ego' instincts and his recognition of the fundamental importance of the aggressive forces in human nature and behaviour, to the formulation of his theories regarding life and death.