推荐回答(5个)
双耳佩戴助听器的好处一:避免迟发性听觉剥夺效应 一个存在有双侧听力障碍的患者如果只选择佩戴一个助听器的话,那没有戴用助听器耳朵的听觉中枢对语言的理解能力就会逐渐下降,听力学上把这种现象称为渐进(迟发)性听觉剥夺效应,时间越长越严重。产生听觉剥夺效应的主要原因是因为戴助听器的耳朵向大脑输送了足够的信息,使得大脑不再去关注没有佩戴助听器的耳朵,大脑似乎放弃了对传送较弱信号耳的关注。为了避免发生这种现象,目前有效的解决办法就只能是双耳同时选配助听器。 双耳佩戴助听器的好处二:提高声源定位能力 人耳具有极强的声源定位能力。但是,它的先决条件是双耳必须具备同等的听力阈值。声音在空气的传递过程中,会有能量和速度的变化,如果听力损失且阈值不对称,无论来自什么方向的声音大多数都会被听力阈值较好的一侧听到,这样就无法判定声源的方向。因此,双耳选配可更好的提高对声源的定位能力 双耳佩戴助听器的好处三:提高降噪和言语理解能力 人耳的耳廓具有集音和降噪功能。对一个听力有缺陷的患者来说,提高信噪比是非常重要的。双耳佩戴则意味着二个耳廓同时具备集音和降噪能力,对提高语言分辨能力有极大的意义。 双耳佩戴助听器的好处四:增强双耳响度整合效应 双耳听觉所接受的声音响度要比单耳高一些,在阈值水平,双耳阈值好于单耳阈值约3分贝。在阈上水平,双耳阈值好于单耳阈值约10分贝。因此,双耳佩戴助听器可以使每只助听器的整体增益略为降低,从而减少了声反馈的可能性,提高了电池的使用时间。同时对于重度聋患者来说,助听器进入饱和状态的机率降低,更有助于改善助听后的言语可懂度。 双耳佩戴助听器的好处五:延缓听神经功能衰退 解决听觉剥夺现象就是解决听中枢神经功能的渐进性衰退。生命在于运动,听中枢的神经细胞靠声音的刺激才能达到运动的目的。所以,让每个双侧听力损失的患者能够双耳都处在正常的有声状态下,通过声刺激来引起听神经的兴奋是非常重要的。 双耳佩戴助听器的好处六:提高聆听舒适度,参与多人交谈 由于双耳选配助听器它提高了耳朵自身的集音、降噪、增益、定位、平衡功能与融合效果,使用者对所听到的声音信号会大大地提高了信噪比和极佳的聆听舒适度。因此,可以从容面对多方交谈的需要。对学习、工作、社交、会议等等会带来极大的帮助
双耳验配好处多:
提升噪声下言语识别能力
提升声源定位能力
双耳整合效应:提高声音响度
降低单耳聆听所造成的听觉疲劳
避免迟发性单耳听觉剥夺
双耳佩戴助听的好处是什么?
提高定位能力,
防止头影效应,
更好地抑制噪声,
避免迟发的听觉剥夺,
抑制耳鸣,
双耳整合效应,
1.提高声源定位能力2.提高降噪和言语理解能力。3.增强双耳响度整合效应。4.避免迟发性听觉剥夺效应。5.延缓听神经功能衰退。6.提高聆听舒适度,参与多人交谈。7.消除头影效应。8.抑制(掩蔽)耳鸣现象。9.预防单侧性听觉疲劳。10.减轻堵耳效应。
双耳验配的益处
1,保持听力平衡,有方向感和立体感
2,响度加合,在减小增益的同时避免反馈的发生。
3,双耳噪音昂志,有效削减环境噪音,提高信噪比,增加言语的可懂度
4,消除头影效应,避免言语信息到达另一耳朵时的衰减造成言语可懂度下降
5,避免听觉剥夺现象,使两耳的言语分辨率保持稳定
6,有助于缩短老年性聋患者佩戴助听器的适应期以及儿童听力康复的时间
7,有助于避免回响的发生
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