ABSTRACT
Psychology and biology are unanimous that 'the child is father of the man'. To psychology this means that the behaviour, character and personality of the adult all have their origins in childhood. An important feature of all that no other terms are used than those used for describing mental states of adults. The aim of the present research was to collect in this field objective data which can be easily verified, and can be described in terms acceptable to any school of psychology. The choice of feeding was determined both by theoretical and by practical reasons. Theoretically it is known that sucking is one of the complex functions of which the infant is capable. The interest in infant feeding started in Germany, where the University chairs in Paediatrics were established, and so most of the physiological work was done by German physicians.
