Hearing-Impaired Listeners Show Reduced Attention to High-Frequency Information in the Presence of Low-Frequency Information.
Hearing-Impaired Listeners Show Reduced Attention to High-Frequency Information in the Presence of Low-Frequency Information.
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DOI：
10.1177/2331216520945516
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发表时间：
2020-01
影响因子：
2.7
通讯作者：
Kidd G , Jr
中科院分区：
文献类型：
--
作者：
Roverud E;Dubno JR;Kidd G , Jr
许多有感音神经性听力损失的听者在不同频率的听力灵敏度不均匀。这项研究探讨了这种不均匀的听力损失是否会导致注意力偏向不同的频率区域。听力正常（NH）和听力受损（HI）听者在750和3500hz两个远距离中心频率（CFs）下进行模式识别任务。这些模式是纯音序列，其中每个连续的音调元素是从CF周围的两个可能频率中随机选择的。刺激以相同的感觉水平呈现，以确保相同的可听性。此外，对每个听者调整模式内音调元素的频率分离，使每个CF在安静状态下获得相同的模式识别性能。经过这些调整后，在两个CFs同时呈现独立模式的条件下进行模式识别任务。听者被指示在刺激前注意低CF或高CF（在指导下评估对频率的选择性注意）或在刺激后（分散注意，评估固有频率偏差）。NH听众在两个cf之间表现出大致相等的性能下降（即安静）。在选择性和分散注意条件下的组合呈现条件下，HI听众在3500 Hz CF下表现出比在750 Hz CF下更大的表现下降，这表明低频注意偏差显然不受受试者控制。令人惊讶的是，这种频率偏差的大小与两个中心阈值的不对称程度无关。
Many listeners with sensorineural hearing loss have uneven hearing sensitivity across frequencies. This study addressed whether this uneven hearing loss leads to a biasing of attention to different frequency regions. Normal-hearing (NH) and hearing-impaired (HI) listeners performed a pattern discrimination task at two distant center frequencies (CFs): 750 and 3500 Hz. The patterns were sequences of pure tones in which each successive tonal element was randomly selected from one of two possible frequencies surrounding a CF. The stimuli were presented at equal sensation levels to ensure equal audibility. In addition, the frequency separation of the tonal elements within a pattern was adjusted for each listener so that equal pattern discrimination performance was obtained for each CF in quiet. After these adjustments, the pattern discrimination task was performed under conditions in which independent patterns were presented at both CFs simultaneously. The listeners were instructed to attend to the low or high CF before the stimulus (assessing selective attention to frequency with instruction) or after the stimulus (divided attention, assessing inherent frequency biases). NH listeners demonstrated approximately equal performance decrements (re: quiet) between the two CFs. HI listeners demonstrated much larger performance decrements at the 3500 Hz CF than at the 750 Hz CF in combined-presentation conditions for both selective and divided attention conditions, indicating a low-frequency attentional bias that is apparently not under subject control. Surprisingly, the magnitude of this frequency bias was not related to the degree of asymmetry in thresholds at the two CFs.
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影响因子：
2.4
作者：
BERG, BG
通讯作者：
BERG, BG
DOI：
10.1037/0096-1523.11.3.257
发表时间：
1985-01-01
影响因子：
2.1
作者：
ANSTIS, S;SAIDA, S
通讯作者：
SAIDA, S
影响因子：
2.4
作者：
Kidd, G;Mason, CR;Arbogast, TL
通讯作者：
Arbogast, TL
影响因子：
2.4
作者：
Ching, TYC;Dillon, H;Byrne, D
通讯作者：
Byrne, D
DOI：
10.1044/1092-4388(2008/057
发表时间：
2008-06-01
影响因子：
2.6
作者：
Horwitz, Amy R.;Ahlstrom, Jayne B.;Dubno, Judy R.
通讯作者：
Dubno, Judy R.