Linnaeus Centre HEAD, The Swedish Institute for Disability Research, Department of Behavioral Sciences and Learning, Linköping University Linköping, Sweden.
Department of Behavioral Sciences and Learning, Linköping University Linköping, Sweden.
Front Psychol. 2014 Jun 2;5:531. doi: 10.3389/fpsyg.2014.00531. eCollection 2014.
This study aimed to measure the initial portion of signal required for the correct identification of auditory speech stimuli (or isolation points, IPs) in silence and noise, and to investigate the relationships between auditory and cognitive functions in silence and noise. Twenty-one university students were presented with auditory stimuli in a gating paradigm for the identification of consonants, words, and final words in highly predictable and low predictable sentences. The Hearing in Noise Test (HINT), the reading span test, and the Paced Auditory Serial Attention Test were also administered to measure speech-in-noise ability, working memory and attentional capacities of the participants, respectively. The results showed that noise delayed the identification of consonants, words, and final words in highly predictable and low predictable sentences. HINT performance correlated with working memory and attentional capacities. In the noise condition, there were correlations between HINT performance, cognitive task performance, and the IPs of consonants and words. In the silent condition, there were no correlations between auditory and cognitive tasks. In conclusion, a combination of hearing-in-noise ability, working memory capacity, and attention capacity is needed for the early identification of consonants and words in noise.
本研究旨在测量在静音和噪声环境中正确识别听觉言语刺激（或隔离点，IP）所需的初始信号部分，并研究在静音和噪声环境中听觉和认知功能之间的关系。 21 名大学生在门控范式中接受听觉刺激，以识别高可预测和低可预测句子中的辅音、单词和最后一个单词。还进行了噪声下言语测试（HINT）、阅读广度测试和定速听觉连续注意测试，以分别测量参与者的言语噪声能力、工作记忆和注意力容量。结果表明，噪声延迟了高可预测和低可预测句子中辅音、单词和最后一个单词的识别。HINT 表现与工作记忆和注意力容量相关。在噪声条件下，HINT 表现、认知任务表现和辅音和单词的 IP 之间存在相关性。在静音条件下，听觉和认知任务之间没有相关性。总之，需要结合噪声下的听力能力、工作记忆容量和注意力容量来早期识别噪声中的辅音和单词。
