Danhauer J L, Garnett C M, Edgerton B J
Ear Hear. 1985 Jul-Aug;6(4):191-7. doi: 10.1097/00003446-198507000-00004.
The speech sound discrimination abilities of 15 normal-hearing and 15 sensorineural hearing-impaired subjects between 55 and 65 years of age were assessed using videotaped presentations of the Nonsense Syllable Test (NST). Stimuli were presented in auditory (A), visual (V), and auditory-visual (AV) modes. All subjects received the stimuli in two trials for each presentation mode; hearing-impaired subjects were unaided for the first, and wore their own hearing aids for the second. Responses were transcribed phonemically and were scored by the phoneme method. Intra- and interjudge reliability was greater than 90%. Mean phoneme discrimination scores were plotted for each group across the three presentation modes. The results revealed that: both groups' performance improved from V to A to AV modes, but differences were apparent in the amount of increase across modes within each group; the NST differentiated between groups in the A and AV modes, but not in the V mode; the NST identified "poor" speechreaders in each group under both V and AV conditions; and consonant errors in the V mode formed seven homophenous categories based on place of articulation. The NST can be a useful screening test in auditory rehabilitation to distinguish those hearing-impaired persons who naturally take advantage of visual cues from those who do not.
使用无意义音节测试（NST）的录像演示，对15名年龄在55至65岁之间的听力正常受试者和15名感音神经性听力受损受试者的语音辨别能力进行了评估。刺激以听觉（A）、视觉（V）和听觉 - 视觉（AV）模式呈现。所有受试者在每种呈现模式下接受两次刺激试验；听力受损受试者在第一次试验时不佩戴助听器，第二次试验时佩戴自己的助听器。反应以音素形式转录，并采用音素法评分。评判者内和评判者间的信度均大于90%。针对三组呈现模式，绘制了每组的平均音素辨别分数。结果显示：两组的表现从V模式到A模式再到AV模式均有所改善，但每组模式间增加量存在明显差异；NST在A模式和AV模式下能区分两组，但在V模式下不能；NST在V和AV条件下均识别出每组中的“差”言语阅读者；V模式下的辅音错误根据发音部位形成了七个同音类别。NST在听觉康复中可作为一种有用的筛查测试，以区分那些能自然利用视觉线索的听力受损者和不能利用视觉线索的听力受损者。
