Guijo Laura Mochiatti, Horiuti Mirella Boaglio, Cardoso Ana Cláudia Vieira
Faculdade de Filosofia e Ciências, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - Marília (SP), Brasil.
Escola Paulista de Medicina - EPM, Universidade Federal de São Paulo - UNIFESP - São Paulo (SP), Brasil.
Codas. 2019 Aug 29;31(4):e20180181. doi: 10.1590/2317-1782/20192018181.
To measure listening effort using of a dual-task paradigm of working memory and analyze the clinical significance of the normal-hearing individuals' performance.
Participants were 10 young adults with similar socio-cultural level, aged 18-30 years, of both genders, classified as normal-hearing individuals based on the quadritonal average (500, 1000, 2000 and 4000 Hz). The participants were submitted to audiological anamnesis, meatoscopy, and pure tone audiometry. Listening effort was measured using a dual-task paradigm comprising the tasks of speech perception and working memory with logatomes, real words, and meaningless sentences. Prior to measurement, the dual-task paradigm was carried out in audiometric booth in order to train the participants to perform the tasks properly. After the training stage, this paradigm was conducted under two different hearing situations with white noise: signal-to-noise ratios of +5 and -5dB.
Performance comparison per ear, right or left, for the two signal-to-noise ratios significantly influenced the speech perception tasks with logatomes and meaningless sentences in both ears; however, significant difference was observed only for the right ear in the tasks of listening effort and working memory.
Listening effort can be measured using the paradigm proposed, and this instrument was proven sensitive for the quantification of this auditory parameter.
使用工作记忆的双任务范式测量听力努力，并分析听力正常个体表现的临床意义。
参与者为10名社会文化水平相似的年轻人，年龄在18至30岁之间，男女皆有，根据四频率平均（500、1000、2000和4000赫兹）被归类为听力正常个体。参与者接受了听力学问诊、耳镜检查和纯音听力测定。使用包括语音感知和带有单音节词、实词及无意义句子的工作记忆任务的双任务范式来测量听力努力。在测量之前，双任务范式在听力测试室中进行，以便训练参与者正确执行任务。在训练阶段之后，该范式在两种不同的有白噪声的听力情况下进行：信噪比分别为+5和 -5分贝。
对于两只耳朵，在两种信噪比下，每只耳朵（右耳或左耳）的表现比较对双耳中带有单音节词和无意义句子的语音感知任务有显著影响；然而，在听力努力和工作记忆任务中，仅右耳观察到显著差异。
可以使用所提出的范式测量听力努力，并且该工具被证明对量化此听觉参数敏感。
