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Neurophysiological aspects of brainstem processing of speech stimuli in audiometric-normal geriatric population

  • M S Ansari (a1), R Rangasayee (a2) and M A H Ansari (a3)



Poor auditory speech perception in geriatrics is attributable to neural de-synchronisation due to structural and degenerative changes of ageing auditory pathways. The speech-evoked auditory brainstem response may be useful for detecting alterations that cause loss of speech discrimination. Therefore, this study aimed to compare the speech-evoked auditory brainstem response in adult and geriatric populations with normal hearing.


The auditory brainstem responses to click sounds and to a 40 ms speech sound (the Hindi phoneme |da|) were compared in 25 young adults and 25 geriatric people with normal hearing. The latencies and amplitudes of transient peaks representing neural responses to the onset, offset and sustained portions of the speech stimulus in quiet and noisy conditions were recorded.


The older group had significantly smaller amplitudes and longer latencies for the onset and offset responses to |da| in noisy conditions. Stimulus-to-response times were longer and the spectral amplitude of the sustained portion of the stimulus was reduced. The overall stimulus level caused significant shifts in latency across the entire speech-evoked auditory brainstem response in the older group.


The reduction in neural speech processing in older adults suggests diminished subcortical responsiveness to acoustically dynamic spectral cues. However, further investigations are needed to encode temporal cues at the brainstem level and determine their relationship to speech perception for developing a routine tool for clinical decision-making.


Corresponding author

Address for correspondence: Mr Mohammad Shamim Ansari, Ali Yavar Jung National Institute for the Hearing Handicapped, K C Marg, Bandra (W), Mumbai 400050, Maharashtra, India. E-mail:


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1 Tremblay, KL, Piskosz, M, Souza, P. Effects of age and age-related hearing loss on the neural representation of speech cues. Clin Neuropathol 2003;114:1332–43
2 Van Rooij, JC, Plomp, R, Orlebeke, JF. Auditive and cognitive factors in speech perception by elderly listeners. I: Development of test battery. J Acoust Soc Am 1989;86:1294–309
3 van Rooij, JC, Plomp, R. Auditive and cognitive factors in speech perception by elderly listeners. III. Additional data and final discussion. J Acoust Soc Am 1992 ;91:1028–33
4 Humes, LE. Speech understanding in the elderly. J Am Acad Audiol 1996;7:161–7
5 Dubno, JR, Lee, FS, Matthews, LJ, Mills, JH. Age-related and gender-related changes in monaural speech recognition. J Speech Lang Hear Res 1997;40:444–52
6 Martini, A, Comacchio, F, Magnavita, V. Auditory evoked responses (ABR, MLR, SVR) and brain mapping in the elderly. Acta Otolaryngol Suppl 1991;476:97104
7 Ottaviani, F, Maurizi, M, D'alatri, L, Almadori, G. Auditory brainstem responses in the aged. Acta Otolaryngol Suppl 1991;476:110–13
8 Pichora-Fuller, MK, Schneider, BA, MacDonald, E, Pass, HE, Brown, S. Temporal jitter disrupts speech intelligibility: a simulation of auditory aging. Hear Res 2007;223:114–21
9 Lister, JJ, Maxfield, ND, Pitt, GJ, Gonzalez, VB. Auditory evoked response to gaps in noise: older adults. Int J Audiol 2011;50:211–25
10 Tremblay, KL, Billings, C, Rohila, N. Speech evoked cortical potentials: effects of age and stimulus presentation rate. J Am Acad Audiol 2004;15:226–37
11 Tremblay, K, Ross, B. Effects of age and age-related hearing loss on the brain. J Commun Disord 2007;40:305–12
12 Tremblay, KL, Billings, CJ, Friesen, LM, Souza, PE. Neural representation of amplified speech sounds. Ear Hear 2006;2:93103
13 Harkrider, AW, Plyler, PN, Hedrick, MS. Effects of hearing loss and spectral shaping on identification and neural response patterns of stop-consonant stimuli. J Acoust Soc Am 2006;120:915–25
14 Oku, T, Hasegewa, M. The influence of aging on auditory brainstem response and electrocochleography in the elderly. ORL J Otorhinolaryngol Relat Spec 1997;59:141–6
15 Rosenhall, UL, Björkman, G, Pedersen, K, Kall, A. Brain-stem auditory evoked potentials in different age groups. Electroencephalogr Clin Neurophysiol 1985;62:426–30
16 Rosenhall, U, Pedersen, K, Dotevall, M. Effects of presbycusis and other types of hearing loss on auditory brainstem responses. Scand Audiol 1986;15:179–85
17 Jerger, J, Johnson, K. Interactions of age, gender, and sensorineural hearing loss on ABR latency. Ear Hear 1988;9:168–76
18 Johnson, KL, Nicol, TG, Kraus, N. Brain stem response to speech: a biological marker of auditory processing. Ear Hear 2005;26:424–34
19 Akhoun, I, Gallégo, S, Moulin, A, Ménard, M, Veuillet, E, Berger-Vachon, C et al. The temporal relationship between speech auditory brainstem responses and the acoustic pattern of the phoneme /ba/ in normal-hearing adults. Clin Neurophysiol 2008;119:922–33
20 Chandrasekaran, B, Kraus, N. The scalp-recorded brainstem response to speech: neural origins and plasticity. Psychophysiology 2010;47:236–46
21 Song, JH, Banai, K, Russo, NM, Kraus, N. On the relationship between speech- and non speech-evoked auditory brainstem responses. Audiol Neurootol 2006;11:233–41
22 Russo, N, Nicol, T, Trommer, B, Zecker, S, Kraus, N. Brainstem transcription of speech is disrupted in children with autism spectrum disorders. Dev Sci 2009;12:557–67
23 Wible, B, Nicol, T, Kraus, N. Correlation between brainstem and cortical auditory processes in normal and language-impaired children. Brain 2005;128:417–23
24 Hall, JW. New handbook of auditory evoked responses. Boston: Pearson 2007;221–60
25 Krishnan, A. Human frequency-following responses: representation of steady-state synthetic vowels. Hear Res 2002;166:192201
26 Russo, N, Nicol, T, Musacchia, G, Kraus, N. Brainstem responses to speech syllables. Clin Neurophysiol 2004;115:2021–30
27 Kraus, N, Nicol, T. Brainstem origins for cortical ‘what’ and ‘where’ pathways in the auditory system. Trends Neurosci 2005;28:176–81
28 Clinard, CG, Tremblay, KL, Krishnan, AR. Aging alters the perception and physiological representation of frequency: evidence from human frequency-following response recordings. Hear Res 2010;264:4855
29 Vander Werff, KR, Burns, KS. Brain stem responses to speech in younger and older adults. Ear Hear 2011;32:168–80
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