io8 Heredity and Child Culture 



what would be a sensory phenomenon in later 

 life is a motor one in the yomig infant. The 

 best example of this is seen in the way certain 

 illnesses begin. What is a sensory symptom 

 in the adult, — a chill, — is reflected into a motor 

 arc and becomes a convulsion in the infant. In 

 its nervous mechanism, the new-bom baby is 

 not unlike a fully-developed frog. Pain is not 

 active at this time, and while doubtless con- 

 scious of unpleasant sensations, the young baby 

 does not experience pain in the ordinary sense. 

 A baby born without any brain will automati- 

 cally cry. By the end of the first year, crying- 

 may ensue from a real feeling of pain. 



Just after birth, the brain and nerve centres 

 act only automatically, or by reflex action. 

 Touch and taste are present at birth, but the 

 baby is deaf for the first few days and will not 

 follow an object with its eyes until the third 

 week. The eyes should never be exposed to 

 bright lights. By the third month, the baby 

 reaches out its arms for objects and may recog- 

 nize individuals. The rudiments of memory are 

 now developed, and by the fourth or fifth month 



