This book contains twenty papers read in the summer of 1967 at a conference in Gäteborg, Sweden. This was the second symposium within the span of 4 years on the subject of electroencephalognaphy and clinical neurophysiology relating to early life. The holding of the conference is certainly an index of the great surge of interest among pediatricians, neurologists and neurophysiologists in matters pertaining to the normal development of the central nervous system as well as in the pathologic deviations of this system.