Bilateral and bimodal cochlear implant listeners can segregate competing speech using talker sex cues, but not spatial cues.

Cochlear implant (CI) users have greater difficulty perceiving talker sex and spatial cues than do normal-hearing (NH) listeners. The present study measured recognition of target sentences in the presence of two co-located or spatially separated speech maskers in NH, bilateral CI, and bimodal CI listeners; masker sex was the same as or different than the target. NH listeners demonstrated a large masking release with masker sex and/or spatial cues. For CI listeners, significant masking release was observed with masker sex cues, but not with spatial cues, at least for the spatially symmetrically placed maskers and listening task used in this study.

人工耳蜗（CI）使用者在感知说话者性别和空间线索方面比听力正常（NH）的听者困难更大。本研究对听力正常者、双侧人工耳蜗使用者以及双模人工耳蜗使用者在存在两个同处一地或空间分离的言语掩蔽声时对目标句子的识别情况进行了测量；掩蔽声的性别与目标句子相同或不同。听力正常的听者在掩蔽声性别和/或空间线索方面表现出较大的掩蔽解除效应。对于人工耳蜗使用者，在掩蔽声性别线索方面观察到显著的掩蔽解除效应，但在空间线索方面则没有，至少对于本研究中空间对称放置的掩蔽声和所采用的听力任务是如此。