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首页> 外文期刊>Brazilian Journal of Otorhinolaryngology >Long-latency auditory evoked potentials with verbal and nonverbal stimuli,
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Long-latency auditory evoked potentials with verbal and nonverbal stimuli,

机译：具有语言和非语言刺激的长潜伏期听觉诱发电位，

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ABSTRACT INTRODUCTION: Long-latency auditory evoked potentials represent the cortical activity related to attention, memory, and auditory discrimination skills. Acoustic signal processing occurs differently between verbal and nonverbal stimuli, influencing the latency and amplitude patterns. OBJECTIVE: To describe the latencies of the cortical potentials P1, N1, P2, N2, and P3, as well as P3 amplitude, with different speech stimuli and tone bursts, and to classify them in the presence and absence of these data. METHODS: A total of 30 subjects with normal hearing were assessed, aged 18-32 years old, matched by gender. Nonverbal stimuli were used (tone burst; 1000 Hz - frequent and 4000 Hz - rare); and verbal (/ba/ - frequent; /ga/, /da/, and /di/ - rare). RESULTS: Considering the component N2 for tone burst, the lowest latency found was 217.45 ms for the BA/DI stimulus; the highest latency found was 256.5 ms. For the P3 component, the shortest latency with tone burst stimuli was 298.7 with BA/GA stimuli, the highest, was 340 ms. For the P3 amplitude, there was no statistically significant difference among the different stimuli. For latencies of components P1, N1, P2, N2, P3, there were no statistical differences among them, regardless of the stimuli used. CONCLUSION: There was a difference in the latency of potentials N2 and P3 among the stimuli employed but no difference was observed for the P3 amplitude.
机译：摘要简介：长时间潜伏的听觉诱发电位代表与注意力，记忆力和听觉辨别能力有关的皮层活动。语音信号处理在语言和非语言刺激之间的发生方式有所不同，从而影响了潜伏期和幅度模式。目的：描述皮层电位P1，N1，P2，N2和P3的潜伏期以及P3振幅（具有不同的语音刺激和音调猝发），并根据是否存在这些数据对其进行分类。方法：共有30名听力正常的受试者进行了评估，年龄在18-32岁之间，并按性别进行了匹配。使用非语言刺激（音调突发; 1000 Hz-频繁; 4000 Hz-罕见）;和语言（/ ba /-频繁; / ga /，/ da /和/ di /-罕见）。结果：考虑到音频突发的分量N2，对于BA / DI刺激，发现的最低延迟为217.45 ms;发现的最高延迟为256.5毫秒。对于P3组件，音调突发刺激的最短等待时间为298.7，BA / GA刺激为最高，为340 ms。对于P3振幅，不同刺激之间没有统计学上的显着差异。对于组件P1，N1，P2，N2，P3的延迟，无论使用何种刺激，它们之间都没有统计学差异。结论：所用刺激之间的电位N2和P3潜伏期有所不同，但P3振幅没有观察到差异。

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