Mok Mansze, Galvin Karyn L, Dowell Richard C, McKay Colette M
Department of Otolaryngology, The University of Melbourne, Melbourne, Australia.
Audiol Neurootol. 2007;12(5):295-306. doi: 10.1159/000103210. Epub 2007 May 23.
The aims of this study were to: (1) determine if spatial unmasking existed and differed for children with normal hearing, a hearing aid and a cochlear implant (CIHA), and bilateral implants (BICI); (2) determine if binaural advantage and headshadow effect differed between children with CIHA and BICI. Results indicated that most of the CIHA and BICI children demonstrated spatial unmasking, though to a lesser degree than children with normal hearing. Results also indicated that the children with BICI demonstrated greater headshadow effect than those with CIHA. The CIHA and BICI children also differed in binaural advantage, which could be due to the differences in headshadow effect and in detection abilities with the hearing aid versus the second implant.
(1)确定对于听力正常的儿童、佩戴助听器的儿童和人工耳蜗植入儿童(CIHA)以及双侧植入人工耳蜗的儿童(BICI),空间掩蔽是否存在以及是否存在差异;(2)确定CIHA儿童和BICI儿童在双耳优势和头影效应方面是否存在差异。结果表明,大多数CIHA和BICI儿童表现出空间掩蔽,尽管程度低于听力正常的儿童。结果还表明,BICI儿童比CIHA儿童表现出更大的头影效应。CIHA和BICI儿童在双耳优势方面也存在差异,这可能是由于头影效应以及助听器与第二枚植入物的检测能力存在差异所致。