CHAPTER VII.. Development of Laughter During the First Three Years of Life.

DEVELOPMENT OF LAUGHTER DURING THE FIRST THREE YEARS OF LIFE.

Problem of the early development of laughter in the individual • 186

Development of smile and laugh as movements • 188

The general process of emotional development • 189

Relation of laughter of joy to that of play • 194

Development of laughter of joy • 195

Emergence of laughter of surprise • 197

First laughter of release from strain • 197

Crude form of laughter of jubilation • 198

Development of laughter as accompaniment of play • 198

Early forms of laughing impishness • 201

First manifestations of rowdyish laughter • 203

Germs of roguish laughter • 205

First crude perceptions of the laughable • 207

The mirthful greeting of sounds • 209

Early responses to the funny in the visible world • 212

First enjoyment of pretences • 214

Early laughter at the improper • 215

Dim perceptions of the incongruous and the absurd • 216

Early sense of verbal fun • 217

Summary of results • 218