Stuttering and lisping . ed by the methods ofexperimental phonetics. The movements of the chest during speech maybe recorded by the apparatus shown in Fig. 1. The pneumograph shown in the figure consistsof two metal cups with tops of soft rubber. A taperuns around the body from one rubber top to theother. As the chest expands, the rubber tops arepulled outward. This draws air inward throughthe tubes which open into the metal cups. As thechest falls, the air passes out again. The recording tambour is a metal cup witha rubber top. It is connected with the pneumo-graph by a rubber tube. As the ai
Stuttering and lisping . ed by the methods ofexperimental phonetics. The movements of the chest during speech maybe recorded by the apparatus shown in Fig. 1. The pneumograph shown in the figure consistsof two metal cups with tops of soft rubber. A taperuns around the body from one rubber top to theother. As the chest expands, the rubber tops arepulled outward. This draws air inward throughthe tubes which open into the metal cups. As thechest falls, the air passes out again. The recording tambour is a metal cup witha rubber top. It is connected with the pneumo-graph by a rubber tube. As the air is drawn intoor expelled from the pneumograph, it passes out of,or into, the recording tambour and makes the rubbertop bulge inward or outward. A lever is arrangedto indicate the movements of the rubber top. SYMPTOMS, FORMS, NATURE 23 The registration occurs on a recording drumconsisting of a metal cylinder revolved by clockwork. Fig. 2. — Breath record during stuttering. Around the cylinder a sheet of paper has been. Fig. 3. —Recording the pressure of the lips by the graphic method. A small rubber bulb is placed between the lips and is attached tothe recording tambour. stretched and smoked over a flame. The point ofthe lever of the recording tambour is adjusted to 24 STUTTERING AND LISPING Fig. 4. — Lip record of a stutterers attempt to say the first letter inthe word Peter. Instead of a single pressure the stutterer makes repeated con-tractions. touch the paper; it draws a white line in the soot. The paper is afterwards removed and the record isfixed in shellac varnish. To record the breath-ing movements the pneu-mograph is hung over thechest or the abdomen bya tape around the record reproduced inFig. 2 is from a womanwhose abdomen madeviolent movements out-ward during certain con-sonants. The records Fig. 5. — Recording the movements of the tongue. show the movement s for A small rubber bulb is placed _ in front of or on the tongue and ordinary breathing a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectspeech, bookyear1912
