Development and validation of a spectro-temporal processing test for cochlear-implant listeners

被引:26
作者
Archer-Boyd, Alan W. [1 ]
Southwell, Rosy V. [1 ]
Deeks, John M. [1 ]
Turner, Richard E. [1 ]
Carlyon, Robert P. [1 ]
机构
[1] Univ Cambridge, MRC, Cognit & Brain Sci Unit, 15 Chaucer Rd, Cambridge CB2 7EF, England
基金
英国工程与自然科学研究理事会;
关键词
SPEECH RECOGNITION; MODULATION DETECTION; SPECTRAL-RIPPLE; NORMAL-HEARING; PHONEME RECOGNITION; STIMULATION RATE; TEMPORAL PITCH; NOISE; NUMBER; RESOLUTION;
D O I
10.1121/1.5079636
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Psychophysical tests of spectro-temporal resolution may aid the evaluation of methods for improving hearing by cochlear implant (CI) listeners. Here the STRIPES (Spectro-Temporal Ripple for Investigating Processor EffectivenesS) test is described and validated. Like speech, the test requires both spectral and temporal processing to perform well. Listeners discriminate between complexes of sine sweeps which increase or decrease in frequency; difficulty is controlled by changing the stimulus spectro-temporal density. Care was taken to minimize extraneous cues, forcing listeners to perform the task only on the direction of the sweeps. Vocoder simulations with normal hearing listeners showed that the STRIPES test was sensitive to the number of channels and temporal information fidelity. An evaluation with CI listeners compared a standard processing strategy with one having very wide filters, thereby spectrally blurring the stimulus. Psychometric functions were monotonic for both strategies and five of six participants performed better with the standard strategy. An adaptive procedure revealed significant differences, all in favour of the standard strategy, at the individual listener level for six of eight CI listeners. Subsequent measures validated a faster version of the test, and showed that STRIPES could be performed by recently implanted listeners having no experience of psychophysical testing. (C) 2018 Author(s).
引用
收藏
页码:2983 / 2997
页数:15
相关论文
共 75 条
[1]  
Advanced Bionics, 2017, LISTPLAYER 3
[2]  
Advanced Bionics, 2015, SOUNDW 2 3
[3]  
Advanced Bionics, 2014, BION EAR PROGR SYST
[4]   Are individual differences in speech reception related to individual differences in cognitive ability? A survey of twenty experimental studies with normal and hearing-impaired adults [J].
Akeroyd, Michael A. .
INTERNATIONAL JOURNAL OF AUDIOLOGY, 2008, 47 :S53-S71
[5]   Assessing the role of spectral and intensity cues in spectral ripple detection and discrimination in cochlear-implant users [J].
Anderson, Elizabeth S. ;
Oxenham, Andrew J. ;
Nelson, Peggy B. ;
Nelson, David A. .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2012, 132 (06) :3925-3934
[6]   Interleaved Processors Improve Cochlear Implant Patients' Spectral Resolution [J].
Aronoff, Justin M. ;
Stelmach, Julia ;
Padilla, Monica ;
Landsberger, David M. .
EAR AND HEARING, 2016, 37 (02) :e85-e90
[7]   The development of a modified spectral ripple test [J].
Aronoff, Justin M. ;
Landsberger, David M. .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2013, 134 (02) :EL217-EL222
[8]   Effects of stimulation rate on modulation detection and speech recognition by cochlear implant users [J].
Arora, Komal ;
Vandali, Andrew ;
Dowell, Richard ;
Dawson, Pam .
INTERNATIONAL JOURNAL OF AUDIOLOGY, 2011, 50 (02) :123-132
[9]   A Psychophysical Method for Measuring Spatial Resolution in Cochlear Implants [J].
Azadpour, Mahan ;
McKay, Colette M. .
JARO-JOURNAL OF THE ASSOCIATION FOR RESEARCH IN OTOLARYNGOLOGY, 2012, 13 (01) :145-157
[10]   Psychophysical Estimates of Frequency Discrimination: More than Just Limitations of Auditory Processing [J].
Barry, Johanna G. ;
Weiss, Benjamin ;
Sabisch, Beate .
BRAIN SCIENCES, 2013, 3 (03) :1023-1042