Minimal effects of visual memory training on auditory performance of adult cochlear implant users.

Minimal effects of visual memory training on auditory performance of adult cochlear implant users.
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DOI:
10.1682/jrrd.2011.12.0229
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发表时间:
2013
影响因子:
--
通讯作者:
Fu QJ
Fu QJ
中科院分区:
其他
文献类型:
--
作者:
Oba SI;Galvin JJ 3rd;Fu QJ

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听觉训练已被证明可以显着改善人工耳蜗(CI)用户的语音和音乐感知。然而,目前还不清楚训练后的表现是否是由于听觉感知的改善或注意力、记忆力和/或认知处理的普遍改善。在这项研究中,语音和音乐知觉,以及听觉和视觉记忆进行了评估,在十个CI用户之前,期间和之后的培训与非听觉任务。一个视觉数字广度(VDS)的任务是用于培训,其中受试者回忆序列的数字视觉呈现。经过VDS训练后,VDS成绩显著提高。然而,除了在声音情感识别和旋律轮廓识别方面有小的(但显著的)改善外,大多数听觉结果指标(听觉数字广度、音素识别、噪声中的句子识别、噪声中的数字识别)没有显著改善。非听觉VDS训练的训练后增益比CI用户先前的听觉训练研究中观察到的要小得多。结果表明,在以前的研究中观察到的训练后增益并不仅仅归因于注意力或记忆力的改善,更有可能是由于听觉感知的改善。结果还表明,CI用户可能需要有针对性的听觉训练来改善语音和音乐感知。
Auditory training has been shown to significantly improve cochlear implant (CI) users’ speech and music perception. However, it is unclear whether post-training gains in performance were due to improved auditory perception or to generally improved attention, memory and/or cognitive processing. In this study, speech and music perception, as well as auditory and visual memory were assessed in ten CI users before, during, and after training with a non-auditory task. A visual digit span (VDS) task was used for training, in which subjects recalled sequences of digits presented visually. After the VDS training, VDS performance significantly improved. However, there were no significant improvements for most auditory outcome measures (auditory digit span, phoneme recognition, sentence recognition in noise, digit recognition in noise), except for small (but significant) improvements in vocal emotion recognition and melodic contour identification. Post-training gains were much smaller with the non-auditory VDS training than observed in previous auditory training studies with CI users. The results suggest that post-training gains observed in previous studies were not solely attributable to improved attention or memory, and were more likely due to improved auditory perception. The results also suggest that CI users may require targeted auditory training to improve speech and music perception.
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