1
|
Tune S, Obleser J. Neural attentional filters and behavioural outcome follow independent individual trajectories over the adult lifespan. eLife 2024; 12:RP92079. [PMID: 38470243 DOI: 10.7554/elife.92079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024] Open
Abstract
Preserved communication abilities promote healthy ageing. To this end, the age-typical loss of sensory acuity might in part be compensated for by an individual's preserved attentional neural filtering. Is such a compensatory brain-behaviour link longitudinally stable? Can it predict individual change in listening behaviour? We here show that individual listening behaviour and neural filtering ability follow largely independent developmental trajectories modelling electroencephalographic and behavioural data of N = 105 ageing individuals (39-82 y). First, despite the expected decline in hearing-threshold-derived sensory acuity, listening-task performance proved stable over 2 y. Second, neural filtering and behaviour were correlated only within each separate measurement timepoint (T1, T2). Longitudinally, however, our results raise caution on attention-guided neural filtering metrics as predictors of individual trajectories in listening behaviour: neither neural filtering at T1 nor its 2-year change could predict individual 2-year behavioural change, under a combination of modelling strategies.
Collapse
Affiliation(s)
- Sarah Tune
- Center of Brain, Behavior, and Metabolism, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Lübeck, Lübeck, Germany
| | - Jonas Obleser
- Center of Brain, Behavior, and Metabolism, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Lübeck, Lübeck, Germany
| |
Collapse
|
2
|
Çolak H, Aydemir BE, Sakarya MD, Çakmak E, Alniaçik A, Türkyilmaz MD. Subcortical Auditory Processing and Speech Perception in Noise Among Individuals With and Without Extended High-Frequency Hearing Loss. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2024; 67:221-231. [PMID: 37956878 DOI: 10.1044/2023_jslhr-23-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
PURPOSE The significance of extended high-frequency (EHF) hearing (> 8 kHz) is not well understood so far. In this study, we aimed to understand the relationship between EHF hearing loss (EHFHL) and speech perception in noise (SPIN) and the associated physiological signatures using the speech-evoked frequency-following response (sFFR). METHOD Sixteen young adults with EHFHL and 16 age- and sex-matched individuals with normal hearing participated in the study. SPIN performance in right speech-right noise, left speech-left noise, and binaural listening conditions was evaluated using the Turkish Matrix Test. Additionally, subcortical auditory processing was assessed by recording sFFRs elicited by 40-ms /da/ stimuli. RESULTS Individuals with EHFHL demonstrated poorer SPIN performances in all listening conditions (p < .01). Longer latencies were observed in the V (onset) and O (offset) peaks in these individuals (p ≤ .01). However, only the V/A peak amplitude was found to be significantly reduced in individuals with EHFHL (p < .01). CONCLUSIONS Our findings highlight the importance of EHF hearing and suggest that EHF hearing should be considered among the key elements in SPIN. Individuals with EHFHL show a tendency toward weaker subcortical auditory processing, which likely contributes to their poorer SPIN performance. Thus, routine assessment of EHF hearing should be implemented in clinical settings, alongside the evaluation of standard audiometric frequencies (0.25-8 kHz).
Collapse
Affiliation(s)
- Hasan Çolak
- Department of Audiology, Baskent University, Ankara, Turkey
- Department of Audiology, Hacettepe University, Ankara, Turkey
| | | | | | - Eda Çakmak
- Department of Audiology, Baskent University, Ankara, Turkey
| | | | | |
Collapse
|
3
|
Sanfins MD, Gielow I, Madazio G, Honorio F, Bordin T, Skarzynski PH, Skarzynska MB, Behlau M. The Effects of Monaural Stimulation on Frequency-Following Responses in Adults Who Can Sing in Tune and Those Who Cannot. Int Arch Otorhinolaryngol 2023; 27:e203-e210. [PMID: 37125359 PMCID: PMC10147469 DOI: 10.1055/s-0043-1761167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/20/2021] [Indexed: 02/10/2023] Open
Abstract
Abstract
Introduction Musicians have an advantage over non-musicians in detecting, perceiving, and processing nonverbal (i.e., environmental sounds, tones and others) and verbal sounds (i.e., consonant, vowel, phrases and others) as well as instrumental sounds. In contrast to the high skill of musicians, there is another group of people who are tone-deaf and have difficulty in distinguishing musical sounds or singing in tune. These sounds can originate in different ways, such as a musical instrument, orchestra, or the human voice.
Objective The objective of the present work is to study frequency-following responses (FFRs) in individuals who can sing in-tune and those who sing off-tune.
Methods Electrophysiological responses were recorded in 37 individuals divided in two groups: (i) control group (CG) with professional musicians, and (ii) experimental group (EG) with non-musicians.
Results There was homogeneity between the two groups regarding age and gender. The CG had more homogeneous responses in the latency of the FFRs waves when responses between the right and left ears were compared to those of the EG.
Conclusion This study showed that monaural stimulation (right or left) in an FFR test is useful for demonstrating impairment of speech perception in individuals who sing off tune. The response of the left ear appears to present more subtlety and reliability when identifying the coding of speech sound in individuals who sing off tune.
Collapse
Affiliation(s)
- Milaine Dominici Sanfins
- Department of Audiology, Albert Einstein Instituto Israelita de Ensino e Pesquisa, São Paulo, SP, Brazil
- Department of Electrophysiology, Centro de Estudos da Voz (CEV), São Paulo, SP, Brazil
| | - Ingrid Gielow
- Department of Hearing, Centro de Estudos da Voz (CEV), São Paulo, SP, Brazil
| | - Glaucya Madazio
- Department of Voice, Centro de Estudos da Voz (CEV), São Paulo, SP, Brazil
| | - Francine Honorio
- Department of Voice, Centro de Estudos da Voz (CEV), São Paulo, SP, Brazil
| | - Tatiana Bordin
- Department of Estatistical, Instituto de pesquisa Eldorado, Campinas, SP, Brazil
| | - Piotr Henryk Skarzynski
- Department of Hearing, Institute of Physiology and Pathology of Hearing, Warsaw, Poland
- Department of Heart Failure and Cardiac Rehabilitation, Univeristy of Warsaw, Poland
- Department of Otolaryngology, Institute of Sensory Organs, Warsaw, Poland
| | - Magdalena Beata Skarzynska
- Department of Otolaryngology, Institute of Sensory Organs, Warsaw, Poland
- Department of Hearing, Institute of Physiology and Pathology of Hearing, World Hearing Center, Kajetany, Poland
- Department of Hearing, Center of Hearing and Speech, Kajetany, Poland
| | - Mara Behlau
- Department of Voice, Centro de Estudos da Voz (CEV), São Paulo, SP, Brazil
- Department of Voice, Universidade Federal de São Paulo, São Paulo, Brazil
| |
Collapse
|
4
|
Speech auditory brainstem response in audiological practice: a systematic review. Eur Arch Otorhinolaryngol 2023; 280:2099-2118. [PMID: 36651959 DOI: 10.1007/s00405-023-07830-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/07/2023] [Indexed: 01/19/2023]
Abstract
BACKGROUND Speech-ABR is an auditory brainstem response that evaluates the integrity of the temporal and spectral coding of speech in the upper levels of the brainstem. It reflects the acoustic properties of the stimulus used and consists of seven major waves. Waves V and A represent the onset of the response; wave C transition region; D, E, and F waves periodic region (frequency following response); and wave O reflects the offset of the response. PURPOSE The aim of this study is to evaluate the clinical availability of the speech-ABR procedure through a literature review. METHODS Literature search was conducted in Pubmed, Google Scholar, Scopus and Science Direct databases. Clinical studies of the last 15 years have been included in this review and 60 articles have been reviewed. RESULTS As a result of the articles reviewed, it was seen that most of the studies on speech ABR were conducted with children and young people and generally focused on latency analysis measurements. Most used stimulus is the /da/ syllable. CONCLUSIONS Speech ABR can objectively measure the auditory cues important for speech recognition and has many clinical applications. It can be used as a biomarker for auditory processing disorders, learning disorders, dyslexia, otitis media, hearing loss, language disorders and phonological disorders. S-ABR is an effective procedure that can be used in speech and language evaluations in people with hearing aids or cochlear implant. It may also be of benefit to the aging auditory system's ability to encode temporal cues.
Collapse
|
5
|
Parker A, Skoe E, Tecoulesco L, Naigles L. A Home-Based Approach to Auditory Brainstem Response Measurement: Proof-of-Concept and Practical Guidelines. Semin Hear 2022; 43:177-196. [PMID: 36313050 PMCID: PMC9605808 DOI: 10.1055/s-0042-1756163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Abstract
Broad-scale neuroscientific investigations of diverse human populations are difficult to implement. This is because the primary neuroimaging methods (magnetic resonance imaging, electroencephalography [EEG]) historically have not been portable, and participants may be unable or unwilling to travel to test sites. Miniaturization of EEG technologies has now opened the door to neuroscientific fieldwork, allowing for easier access to under-represented populations. Recent efforts to conduct auditory neuroscience outside a laboratory setting are reviewed and then an in-home technique for recording auditory brainstem responses (ABRs) and frequency-following responses (FFRs) in a home setting is introduced. As a proof of concept, we have conducted two in-home electrophysiological studies: one in 27 children aged 6 to 16 years (13 with autism spectrum disorder) and another in 12 young adults aged 18 to 27 years, using portable electrophysiological equipment to record ABRs and FFRs to click and speech stimuli, spanning rural and urban and multiple homes and testers. We validate our fieldwork approach by presenting waveforms and data on latencies and signal-to-noise ratio. Our findings demonstrate the feasibility and utility of home-based ABR/FFR techniques, paving the course for larger fieldwork investigations of populations that are difficult to test or recruit. We conclude this tutorial with practical tips and guidelines for recording ABRs and FFRs in the field and discuss possible clinical and research applications of this approach.
Collapse
Affiliation(s)
- Ashley Parker
- Department of Speech, Language, and Hearing Sciences, University of Connecticut, Storrs, Connecticut
- Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs, Connecticut
- Department of Communication Sciences and Disorders, University of Pittsburgh, Pittsburgh, Pennsylvania.
| | - Erika Skoe
- Department of Speech, Language, and Hearing Sciences, University of Connecticut, Storrs, Connecticut
- Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs, Connecticut
- Cognitive Sciences Program, University of Connecticut, Storrs, Connecticut
| | - Lee Tecoulesco
- Cognitive Sciences Program, University of Connecticut, Storrs, Connecticut
- Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut
| | - Letitia Naigles
- Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs, Connecticut
- Cognitive Sciences Program, University of Connecticut, Storrs, Connecticut
- Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut
| |
Collapse
|
6
|
Kamerer AM, Harris SE, Kopun JG, Neely ST, Rasetshwane DM. Understanding Self-reported Hearing Disability in Adults With Normal Hearing. Ear Hear 2022; 43:773-784. [PMID: 34759207 PMCID: PMC9010339 DOI: 10.1097/aud.0000000000001161] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Despite a diagnosis of normal hearing, many people experience hearing disability (HD) in their everyday lives. This study assessed the ability of a number of demographic and auditory variables to explain and predict self-reported HD in people regarded as audiologically healthy via audiometric thresholds. DESIGN One-hundred eleven adults (ages 19 to 74) with clinically normal hearing (i.e., audiometric thresholds ≤25 dB HL at all octave and interoctave frequencies between 0.25 and 8 kHz and bilaterally symmetric hearing) were asked to complete the 12-item version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) as a measure of self-reported HD. Patient history and a number of standard and expanded measures of hearing were assessed in a multivariate regression analysis to predict SSQ12 score. Patient history included age, sex, history of noise exposure, and tinnitus. Hearing-related measures included audiometry at standard and extended high frequencies, word recognition, otoacoustic emissions, auditory brainstem response, the Montreal Cognitive Assessment, and FM detection threshold. RESULTS History of impulse noise exposure, speech-intelligibility index, and FM detection threshold accurately predicted SSQ12 and were able to account for 40% of the SSQ12 score. These three measures were also able to predict whether participants self-reported HD with a sensitivity of 89% and specificity of 86%. CONCLUSIONS Although participant audiometric thresholds were within normal limits, higher thresholds, history of impulse noise exposure, and FM detection predicted self-reported HD.
Collapse
Affiliation(s)
| | | | - Judy G. Kopun
- Boys Town National Research Hospital, Omaha, NE 68131
| | | | | |
Collapse
|
7
|
Bsharat-Maalouf D, Karawani H. Bilinguals' speech perception in noise: Perceptual and neural associations. PLoS One 2022; 17:e0264282. [PMID: 35196339 PMCID: PMC8865662 DOI: 10.1371/journal.pone.0264282] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 02/07/2022] [Indexed: 01/26/2023] Open
Abstract
The current study characterized subcortical speech sound processing among monolinguals and bilinguals in quiet and challenging listening conditions and examined the relation between subcortical neural processing and perceptual performance. A total of 59 normal-hearing adults, ages 19–35 years, participated in the study: 29 native Hebrew-speaking monolinguals and 30 Arabic-Hebrew-speaking bilinguals. Auditory brainstem responses to speech sounds were collected in a quiet condition and with background noise. The perception of words and sentences in quiet and background noise conditions was also examined to assess perceptual performance and to evaluate the perceptual-physiological relationship. Perceptual performance was tested among bilinguals in both languages (first language (L1-Arabic) and second language (L2-Hebrew)). The outcomes were similar between monolingual and bilingual groups in quiet. Noise, as expected, resulted in deterioration in perceptual and neural responses, which was reflected in lower accuracy in perceptual tasks compared to quiet, and in more prolonged latencies and diminished neural responses. However, a mixed picture was observed among bilinguals in perceptual and physiological outcomes in noise. In the perceptual measures, bilinguals were significantly less accurate than their monolingual counterparts. However, in neural responses, bilinguals demonstrated earlier peak latencies compared to monolinguals. Our results also showed that perceptual performance in noise was related to subcortical resilience to the disruption caused by background noise. Specifically, in noise, increased brainstem resistance (i.e., fewer changes in the fundamental frequency (F0) representations or fewer shifts in the neural timing) was related to better speech perception among bilinguals. Better perception in L1 in noise was correlated with fewer changes in F0 representations, and more accurate perception in L2 was related to minor shifts in auditory neural timing. This study delves into the importance of using neural brainstem responses to speech sounds to differentiate individuals with different language histories and to explain inter-subject variability in bilinguals’ perceptual abilities in daily life situations.
Collapse
Affiliation(s)
- Dana Bsharat-Maalouf
- Department of Communication Sciences and Disorders, University of Haifa, Haifa, Israel
| | - Hanin Karawani
- Department of Communication Sciences and Disorders, University of Haifa, Haifa, Israel
- * E-mail:
| |
Collapse
|
8
|
Cheng FY, Xu C, Gold L, Smith S. Rapid Enhancement of Subcortical Neural Responses to Sine-Wave Speech. Front Neurosci 2022; 15:747303. [PMID: 34987356 PMCID: PMC8721138 DOI: 10.3389/fnins.2021.747303] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 12/02/2021] [Indexed: 01/15/2023] Open
Abstract
The efferent auditory nervous system may be a potent force in shaping how the brain responds to behaviorally significant sounds. Previous human experiments using the frequency following response (FFR) have shown efferent-induced modulation of subcortical auditory function online and over short- and long-term time scales; however, a contemporary understanding of FFR generation presents new questions about whether previous effects were constrained solely to the auditory subcortex. The present experiment used sine-wave speech (SWS), an acoustically-sparse stimulus in which dynamic pure tones represent speech formant contours, to evoke FFRSWS. Due to the higher stimulus frequencies used in SWS, this approach biased neural responses toward brainstem generators and allowed for three stimuli (/bɔ/, /bu/, and /bo/) to be used to evoke FFRSWSbefore and after listeners in a training group were made aware that they were hearing a degraded speech stimulus. All SWS stimuli were rapidly perceived as speech when presented with a SWS carrier phrase, and average token identification reached ceiling performance during a perceptual training phase. Compared to a control group which remained naïve throughout the experiment, training group FFRSWS amplitudes were enhanced post-training for each stimulus. Further, linear support vector machine classification of training group FFRSWS significantly improved post-training compared to the control group, indicating that training-induced neural enhancements were sufficient to bolster machine learning classification accuracy. These results suggest that the efferent auditory system may rapidly modulate auditory brainstem representation of sounds depending on their context and perception as non-speech or speech.
Collapse
Affiliation(s)
- Fan-Yin Cheng
- Department of Speech, Language, and Hearing Sciences, University of Texas at Austin, Austin, TX, United States
| | - Can Xu
- Department of Speech, Language, and Hearing Sciences, University of Texas at Austin, Austin, TX, United States
| | - Lisa Gold
- Department of Speech, Language, and Hearing Sciences, University of Texas at Austin, Austin, TX, United States
| | - Spencer Smith
- Department of Speech, Language, and Hearing Sciences, University of Texas at Austin, Austin, TX, United States
| |
Collapse
|
9
|
JAROLLAHI F, VALADBEIGI A, JALAEI B, MAAREFVAND M, MOTASADDI ZARANDY M, HAGHANI H, SHIRZHIYZN Z. Comparing Sound-Field Speech-Auditory Brainstem Response Components between Cochlear Implant Users with Different Speech Recognition in Noise Scores. IRANIAN JOURNAL OF CHILD NEUROLOGY 2022; 16:93-105. [PMID: 35497112 PMCID: PMC9047831 DOI: 10.22037/ijcn.v16i2.27210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 02/28/2021] [Indexed: 12/02/2022]
Abstract
OBJECTIVES Many studies have suggested that cochlear implant (CI) users vary in terms of speech recognition in noise. Studies in this field attribute this variety partly to subcortical auditory processing. Studying speech-Auditory Brainstem Response (speech-ABR) provides good information about speech processing; thus, this work was designed to compare speech-ABR components between two groups of CI users with good and poor speech recognition in noise scores. MATERIALS & METHODS The present study was conducted on two groups of CI users aged 8-10 years old. The first group (CI-good) consisted of 15 children with prelingual CI who had good speech recognition in noise performance. The second group (CI-poor) was matched with the first group, but they had poor speech recognition in noise performance. The speech-ABR test in a sound-field presentation was performed for all the participants. RESULTS The speech-ABR response showed more delay in C, D, E, F, O latencies in CI-poor than CI-good users (P <0.05), meanwhile no significant difference was observed in initial wave (V(t= -0.293, p= 0.771 and A (t= -1.051, p= 0.307). Analysis in spectral-domain showed a weaker representation of fundamental frequency as well as the first formant and high-frequency component of speech stimuli in the CI users with poor auditory performance. CONCLUSIONS Results revealed that CI users who showed poor auditory performance in noise performance had deficits in encoding the periodic portion of speech signals at the brainstem level. Also, this study could be as physiological evidence for poorer pitch processing in CI users with poor speech recognition in noise performance.
Collapse
Affiliation(s)
- Farnoush JAROLLAHI
- Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Ayub VALADBEIGI
- Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Bahram JALAEI
- Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad MAAREFVAND
- Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Masoud MOTASADDI ZARANDY
- Cochlear Implant Center and Department of Otorhinolaryngology, Amir Aalam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid HAGHANI
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra SHIRZHIYZN
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
10
|
Liu P, Zhu H, Chen M, Hong Q, Chi X. Electrophysiological Screening for Children With Suspected Auditory Processing Disorder: A Systematic Review. Front Neurol 2021; 12:692840. [PMID: 34497576 PMCID: PMC8419449 DOI: 10.3389/fneur.2021.692840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/07/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: This research aimed to provide evidence for the early identification and intervention of children at risk for auditory processing disorder (APD). Electrophysiological studies on children with suspected APDs were systematically reviewed to understand the different electrophysiological characteristics of children with suspected APDs. Methods: Computerized databases such as PubMed, Cochrane, MEDLINE, Web of Science, and EMBASE were searched for retrieval of articles since the establishment of the database through May 18, 2020. Cohort, case-control, and cross-sectional studies that evaluated the literature for the electrophysiological assessment of children with suspected APD were independently reviewed by two researchers for literature screening, literature quality assessment, and data extraction. The Newcastle-Ottawa Scale and 11 entries recommended by the Agency for Healthcare Research and Quality were used to evaluate the quality of the literature. Results: In accordance with the inclusion criteria, 14 articles were included. These articles involved 7 electrophysiological testing techniques: click-evoked auditory brainstem responses, frequency-following responses, the binaural interaction component of the auditory brainstem responses, the middle-latency response, cortical auditory evoked potential, mismatch negativity, and P300. The literature quality was considered moderate. Conclusions: Auditory electrophysiological testing can be used for the characteristic identification of children with suspected APD; however, the value of various electrophysiological testing methods for screening children with suspected APD requires further study.
Collapse
Affiliation(s)
- Panting Liu
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Huiqin Zhu
- Department of Child Health Care, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Mingxia Chen
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Qin Hong
- Department of Child Health Care, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xia Chi
- Department of Child Health Care, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| |
Collapse
|
11
|
Test-Retest Variability in the Characteristics of Envelope Following Responses Evoked by Speech Stimuli. Ear Hear 2021; 41:150-164. [PMID: 31136317 DOI: 10.1097/aud.0000000000000739] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The objective of the present study was to evaluate the between-session test-retest variability in the characteristics of envelope following responses (EFRs) evoked by modified natural speech stimuli in young normal hearing adults. DESIGN EFRs from 22 adults were recorded in two sessions, 1 to 12 days apart. EFRs were evoked by the token /susa∫ i/ (2.05 sec) presented at 65 dB SPL and recorded from the vertex referenced to the neck. The token /susa∫ i/, spoken by a male with an average fundamental frequency [f0] of 98.53 Hz, was of interest because of its potential utility as an objective hearing aid outcome measure. Each vowel was modified to elicit two EFRs simultaneously by lowering the f0 in the first formant while maintaining the original f0 in the higher formants. Fricatives were amplitude-modulated at 93.02 Hz and elicited one EFR each. EFRs evoked by vowels and fricatives were estimated using Fourier analyzer and discrete Fourier transform, respectively. Detection of EFRs was determined by an F-test. Test-retest variability in EFR amplitude and phase coherence were quantified using correlation, repeated-measures analysis of variance, and the repeatability coefficient. The repeatability coefficient, computed as twice the standard deviation (SD) of test-retest differences, represents the ±95% limits of test-retest variation around the mean difference. Test-retest variability of EFR amplitude and phase coherence were compared using the coefficient of variation, a normalized metric, which represents the ratio of the SD of repeat measurements to its mean. Consistency in EFR detection outcomes was assessed using the test of proportions. RESULTS EFR amplitude and phase coherence did not vary significantly between sessions, and were significantly correlated across repeat measurements. The repeatability coefficient for EFR amplitude ranged from 38.5 nV to 45.6 nV for all stimuli, except for /∫/ (71.6 nV). For any given stimulus, the test-retest differences in EFR amplitude of individual participants were not correlated with their test-retest differences in noise amplitude. However, across stimuli, higher repeatability coefficients of EFR amplitude tended to occur when the group mean noise amplitude and the repeatability coefficient of noise amplitude were higher. The test-retest variability of phase coherence was comparable to that of EFR amplitude in terms of the coefficient of variation, and the repeatability coefficient varied from 0.1 to 0.2, with the highest value of 0.2 for /∫/. Mismatches in EFR detection outcomes occurred in 11 of 176 measurements. For each stimulus, the tests of proportions revealed a significantly higher proportion of matched detection outcomes compared to mismatches. CONCLUSIONS Speech-evoked EFRs demonstrated reasonable repeatability across sessions. Of the eight stimuli, the shortest stimulus /∫/ demonstrated the largest variability in EFR amplitude and phase coherence. The test-retest variability in EFR amplitude could not be explained by test-retest differences in noise amplitude for any of the stimuli. This lack of explanation argues for other sources of variability, one possibility being the modulation of cortical contributions imposed on brainstem-generated EFRs.
Collapse
|
12
|
Lemos FA, da Silva Nunes AD, de Souza Evangelista CK, Escera C, Taveira KVM, Balen SA. Frequency-Following Response in Newborns and Infants: A Systematic Review of Acquisition Parameters. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:2085-2102. [PMID: 34057846 DOI: 10.1044/2021_jslhr-20-00639] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose The purpose of this study is to characterize parameters used for frequency-following response (FFR) acquisition in children up to 24 months of age through a systematic review. Method The study was registered in PROSPERO and followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses' recommendations. Search was performed in six databases (LILACS, LIVIVO, PsycINFO, PubMed, Scopus, and Web of Science) and gray literature (Google Scholar, OpenGrey, ProQuest)as well as via manual searches in bibliographic references. Observational studies using speech stimuli to elicit the FFR in infants with normal hearing on the age range from 0 until 24 months were included. No restrictions regarding language and year of publication were applied. Risk of bias was assessed with the Joanna Briggs Institute Critical Appraisal Checklist. Data on stimulus, presentation rate, time window for analysis, number of sweeps, artifact rejection, online filters, stimulated ear, and examination condition were extracted. Results Four hundred fifty-nine studies were identified. After removing duplicates and reading titles and abstracts, 15 articles were included. Seven studies were classified as low risk of bias, seven as moderate risk, and one as high risk. Conclusions There is a consensus in the use of some acquisition parameters of the FFR with speech stimulus, such as the vertical mounting, the use of alternating polarity, a sampling rate of 20000 Hz, and the /da/ synthesized syllable of 40 ms in duration as the preferred stimulus. Although these parameters show some consensus, the results disclosed lack of a single established protocol for FFR acquisition with speech stimulus in infants in the investigated age range.
Collapse
Affiliation(s)
- Fabiana Aparecida Lemos
- Speech, Language and Hearing Sciences Graduate Program, Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Laboratory of Technological Innovation in Health of the Federal University of Rio Grande do Norte (LAIS/UFRN), Natal, Brazil
| | - Aryelly Dayane da Silva Nunes
- Speech, Language and Hearing Sciences Graduate Program, Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Laboratory of Technological Innovation in Health of the Federal University of Rio Grande do Norte (LAIS/UFRN), Natal, Brazil
| | - Carolina Karla de Souza Evangelista
- Speech, Language and Hearing Sciences Graduate Program, Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Laboratory of Technological Innovation in Health of the Federal University of Rio Grande do Norte (LAIS/UFRN), Natal, Brazil
| | - Carles Escera
- Brainlab - Cognitive Neuroscience Research Group, Department of Clinical Psychology and Psychobiology, University of Barcelona, Spain
- Institute of Neurosciences, University of Barcelona, Spain
- Sant Joan de Déu Research Institute, Esplugues de Llobregat Barcelona, Spain
| | | | - Sheila Andreoli Balen
- Speech, Language and Hearing Sciences Graduate Program, Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Laboratory of Technological Innovation in Health of the Federal University of Rio Grande do Norte (LAIS/UFRN), Natal, Brazil
| |
Collapse
|
13
|
Reliability of Serological Prestin Levels in Humans and its Relation to Otoacoustic Emissions, a Functional Measure of Outer Hair Cells. Ear Hear 2021; 42:1151-1162. [PMID: 33859120 DOI: 10.1097/aud.0000000000001026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Serological biomarkers, common to many areas of medicine, have the potential to inform on the health of the human body and to give early warning of risk of compromised function or illness before symptoms are experienced. Serological measurement of prestin, a motor protein uniquely produced and expressed in outer hair cells, has recently been identified as a potential biomarker to inform on the health of the cochlea. Before any test can be introduced into the clinical toolkit, the reproducibility of the measurement when repeated in the same subject must be considered. The primary objective of this study is to outline the test-retest reliability estimates and normative ranges for serological prestin in healthy young adults with normal hearing. In addition, we examine the relation between serum prestin levels and otoacoustic emissions (OAEs) to compare this OHC-specific protein to the most common measure of OHC function currently used in hearing assessments. DESIGN We measured prestin levels serologically from circulating blood in 34 young adults (18 to 24 years old) with clinically normal pure-tone audiometric averages at five different timepoints up to six months apart (average intervals between measurements ranged from <1 week to 7 weeks apart). To guide future studies of clinical populations, we present the standard error of the measurement, reference normative values, and multiple measures of reliability. Additionally, we measured transient evoked OAEs at the same five timepoints and used correlation coefficients to examine the relation between OAEs and prestin levels (pg/mL). RESULTS Serum prestin levels demonstrated good to excellent reliability between and across the five different time points, with correlation coefficients and intraclass correlations >0.8. Across sessions, the average serum prestin level was 250.20 pg/mL, with a standard error of measurement of 7.28 pg/mL. Moreover, positive correlations (generally weak to moderate) were found between prestin levels and OAE magnitudes and signal-to-noise ratios. CONCLUSIONS Findings characterize serum prestin in healthy young adults with normal hearing and provide initial normative data that may be critical to interpreting results from individuals with sensorineural hearing loss. Our results demonstrate reliability of serum prestin levels in a sample of normal-hearing young adults across five test sessions up to 6 months apart, paving the way for testing larger samples to more accurately estimate test-retest standards for clinical protocols, including those involving serial monitoring. The positive correlations between serum prestin and OAE levels, although weak to moderate, reinforce that the source of serum prestin is likely the outer hair cells in the inner ear, but also that serum prestin and OAEs each may also index aspects of biologic function not common to the other.
Collapse
|
14
|
Rauterkus G, Moncrieff D, Stewart G, Skoe E. Baseline, retest, and post-injury profiles of auditory neural function in collegiate football players. Int J Audiol 2021; 60:650-662. [PMID: 33439060 DOI: 10.1080/14992027.2020.1860261] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Recent retrospective studies report differences in auditory neurophysiology between concussed athletes and uninjured controls using the frequency-following response (FFR). Adopting a prospective design in college football players, we compared FFRs before and after a concussion and evaluated test-retest reliability in non-concussed teammates. DESIGN Testing took place in a locker room. We analysed the FFR to the fundamental frequency (F0) (FFR-F0) of a speech stimulus, previously identified as a potential concussion biomarker. Baseline FFRs were obtained during the football pre-season. In athletes diagnosed with concussions during the season, FFRs were measured days after injury and compared to pre-season baseline. In uninjured controls, comparisons were made between pre- and post-season. STUDY SAMPLE Participants were Tulane University football athletes (n = 65). RESULTS In concussed athletes, there was a significant group-level decrease in FFR-F0 from baseline (26% decrease on average). By contrast, the control group's change from baseline was not statistically significant, and comparisons of pre- and post-season had good repeatability (intraclass correlation coefficient = 0.75). CONCLUSIONS Results converge with previous work to evince suppressed neural function to the FFR-F0 following concussion. This preliminary study paves the way for larger-scale clinical evaluation of the specificity and reliability of the FFR as a concussion diagnostic.HighlightsThis prospective study reveals suppressed neural responses to sound in concussed athletes compared to baseline.Neural responses to sound show good repeatability in uninjured athletes tested in a locker-room setting.Results support the feasibility of recording frequency-following responses in non-laboratory conditions.
Collapse
Affiliation(s)
- Grant Rauterkus
- Center for Sport, Tulane University School of Medicine, New Orleans, LA, USA
| | - Deborah Moncrieff
- School of Communication Sciences and Disorders, University of Memphis, Memphis, TN, USA
| | - Gregory Stewart
- Department of Orthopaedics, Tulane University School of Medicine, New Orleans, LA, USA
| | - Erika Skoe
- Department of Speech, Language, and Hearing Sciences, Institute for the Brain and Cognitive Sciences, University of Connecticut, Storrs, CT, USA
| |
Collapse
|
15
|
Kumar K, Divyashree MS, Roushan R, Thomas M. Test-Retest Reliability of Binaural Interaction Component (BIC) Using Speech and Non-Speech Evoked ABR. Open Neurol J 2020. [DOI: 10.2174/1874205x02014010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background and Objective:
Binaural hearing serves as an advantage in daily communication by facilitating better localization of sounds and perception of speech in the presence of noise. BIC of ABR has been used to understand the binaural representation of different stimuli, such as transient clicks, and complex signals, such as speech. The present study aimed to investigate the test-retest reliability of the binaural interaction component for click and speech evoked ABR.
Methods:
30 individuals with normal hearing served as participants for the present study. ABR for click and speech stimuli (/da/) were recorded from these participants in monaural and binaural conditions. BIC was calculated using the formula: BIC = (L + R)- BI where, L + R is the sum of the left and right evoked potentials obtained with monaural stimulation, and BI is the response acquired from binaural stimulation. To investigate reliability, all the participants underwent three recording sessions. Session 1 and session 2 (intra-session) were carried out on the same day, separately. Whereas, session 3 (inter-session) was carried out after a minimum gap of 3 - 5 days after the first session. Intraclass correlation was used to investigate the test-retest reliability of click and speech evoked BIC across the three sessions.
Results:
The test-retest reliability for BICclick was found to be excellent for latency measures and fair to good for amplitude measures. BICspeech was found to be fair to good, except for BIC-3.
Conclusion:
The results of the present study indicate that the reliability of BICclick is better than that of BICspeech. These results suggest that the clinical utility of BICspeech should be exerted with caution.
Collapse
|
16
|
Parker A, Slack C, Skoe E. Comparisons of Auditory Brainstem Responses Between a Laboratory and Simulated Home Environment. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2020; 63:3877-3892. [PMID: 33108246 DOI: 10.1044/2020_jslhr-20-00383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Purpose Miniaturization of digital technologies has created new opportunities for remote health care and neuroscientific fieldwork. The current study assesses comparisons between in-home auditory brainstem response (ABR) recordings and recordings obtained in a traditional lab setting. Method Click-evoked and speech-evoked ABRs were recorded in 12 normal-hearing, young adult participants over three test sessions in (a) a shielded sound booth within a research lab, (b) a simulated home environment, and (c) the research lab once more. The same single-family house was used for all home testing. Results Analyses of ABR latencies, a common clinical metric, showed high repeatability between the home and lab environments across both the click-evoked and speech-evoked ABRs. Like ABR latencies, response consistency and signal-to-noise ratio (SNR) were robust both in the lab and in the home and did not show significant differences between locations, although variability between the home and lab was higher than latencies, with two participants influencing this lower repeatability between locations. Response consistency and SNR also patterned together, with a trend for higher SNRs to pair with more consistent responses in both the home and lab environments. Conclusions Our findings demonstrate the feasibility of obtaining high-quality ABR recordings within a simulated home environment that closely approximate those recorded in a more traditional recording environment. This line of work may open doors to greater accessibility to underserved clinical and research populations.
Collapse
Affiliation(s)
- Ashley Parker
- Department of Speech, Language, and Hearing Sciences, University of Connecticut, Storrs
- Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs
| | - Candace Slack
- Department of Speech, Language, and Hearing Sciences, University of Connecticut, Storrs
| | - Erika Skoe
- Department of Speech, Language, and Hearing Sciences, University of Connecticut, Storrs
- Connecticut Institute for Brain and Cognitive Sciences, University of Connecticut, Storrs
| |
Collapse
|
17
|
Cohen Priva U, Sanker C. Natural Leaders: Some Interlocutors Elicit Greater Convergence Across Conversations and Across Characteristics. Cogn Sci 2020; 44:e12897. [PMID: 33037640 DOI: 10.1111/cogs.12897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 11/28/2022]
Abstract
Are there individual tendencies in convergence, such that some speakers consistently converge more than others? Similarly, are there natural "leaders," speakers with whom others converge more? Are such tendencies consistent across different linguistic characteristics? We use the Switchboard Corpus to perform a large-scale convergence study of speakers in multiple conversations with different interlocutors, across six linguistic characteristics. Because each speaker participated in several conversations, it is possible to look for individual differences in speakers' likelihood of converging and interlocutors' likelihood of eliciting convergence. We only find evidence for individual differences by interlocutor, not by speaker: There are natural leaders of convergence, who elicit more convergence than others across characteristics and across conversations. The lack of similar evidence for speakers who converge more than others suggests that social factors have a stronger effect in mediating convergence than putative individual tendencies in producing convergence, or that such tendencies are characteristic-specific.
Collapse
Affiliation(s)
- Uriel Cohen Priva
- Department of Cognitive, Linguistic, and Psychological Sciences, Brown University
| | | |
Collapse
|
18
|
Seol HY, Park S, Ji YS, Hong SH, Moon IJ. Impact of hearing aid noise reduction algorithms on the speech-evoked auditory brainstem response. Sci Rep 2020; 10:10773. [PMID: 32612140 PMCID: PMC7330026 DOI: 10.1038/s41598-020-66970-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 05/27/2020] [Indexed: 11/26/2022] Open
Abstract
The purposes of this study are to investigate the neural representation of a speech stimulus in the auditory system of individuals with normal hearing (NH) and those with hearing aids (HAs) and to explore the impact of noise reduction algorithms (NR) on auditory brainstem response to complex sounds (cABR). Twenty NH individuals and 28 HA users completed puretone audiometry, the Korean version of the Hearing in Noise Test (K-HINT), and cABR. In 0 and +5 dB signal-to-noise ratios (SNRs), the NH group was tested in /da/ only (quiet) and /da/ with white noise (WN) conditions while the HA group was tested in /da/ only, /da/ WN, /da/ WN NR ON, and /da/ WN NR OFF conditions. Significant differences were observed between /da/ only and /da/ WN conditions for F0 in both groups, but no SNR effect was observed for both groups. Findings of this study are consistent with previous literature that diminished cABR amplitudes indicate reduced representation of sounds in the auditory system. This is the first to examine the effect of a specific HA feature on cABR responses.
Collapse
Affiliation(s)
- Hye Yoon Seol
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, Korea
- Hearing Research Laboratory, Samsung Medical Center, Seoul, Korea
| | - Suyeon Park
- Hearing Research Laboratory, Samsung Medical Center, Seoul, Korea
| | - Yoon Sang Ji
- Hearing Research Laboratory, Samsung Medical Center, Seoul, Korea
| | - Sung Hwa Hong
- Hearing Research Laboratory, Samsung Medical Center, Seoul, Korea
- Department of Otolaryngology-Head & Neck Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Il Joon Moon
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, Korea.
- Hearing Research Laboratory, Samsung Medical Center, Seoul, Korea.
- Department of Otolaryngology-Head & Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| |
Collapse
|
19
|
Durante AS, Oliveira SDJ. Frequency-following response (FFR) with speech stimulus in normal-hearing young adults. Codas 2020; 32:e20180254. [PMID: 32578836 DOI: 10.1590/2317-1782/20202018254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/26/2019] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Analyze the slope, latency and amplitude values of the waveforms V, A, C, D, E, F and O from Frequency-following Response (FFR) with speech stimulus in normal-hearing adults based on a recent international reference study. METHOD Eleven normal-hearing adults aged 18-30 years, without hearing complaints, were evaluated in this study using an Intelligent Hearing Systems device. The speech stimulus /da/ was presented to the right ear via insertion phone and the responses were captured by electrodes placed on the vertex, right mastoid bone, and forehead (ground). RESULTS The descriptive latency values of the components were V 6.50, A 7.87, C 17.74, D 22.77, E 32.07, F 40.03 and O 48.07 ms. The mean amplitude measures of the waves were V 0.17, A -0.12, C -0.14, D -0.14, E -0.20, F -0.22 and O -0.14 µV. The mean slope value was 0.23. Comparison with an international study, Krizman et al. (2012), showed that most of the results are within positive and negative standard deviation values for the assessed age group for slope, latency and amplitude. CONCLUSION The electrophysiological measures obtained from Frequency-following Response using the speech stimulus / da/ in normal-hearing adults without hearing complaints showed slope, latency and amplitude values of all FFR components within the normality standard described in the international literature.
Collapse
Affiliation(s)
- Alessandra Spada Durante
- Curso de Fonoaudiologia da Faculdade de Medicina, Faculdade de Ciências Médicas da Santa Casa de São Paulo - FCMSCSP - São Paulo (SP), Brasil
| | - Suenia de Jesus Oliveira
- Curso de Fonoaudiologia da Faculdade de Medicina, Faculdade de Ciências Médicas da Santa Casa de São Paulo - FCMSCSP - São Paulo (SP), Brasil
| |
Collapse
|
20
|
Abstract
OBJECTIVES Recent animal studies have shown that noise exposure can cause cochlear synaptopathy without permanent threshold shift. Because the noise exposure preferentially damaged auditory nerve fibers that processed suprathreshold sounds (low-spontaneous rate fibers), it has been suggested that synaptopathy may underlie suprathreshold hearing deficits in humans. Recently, several researchers have suggested measures to identify the pathology or pathologies underlying suprathreshold hearing deficits in humans based on results from animal studies; however, the reliability of some of these measures have not been assessed. The purpose of this study was to assess the test-retest reliability of measures that may have the potential to relate suprathreshold hearing deficits to site(s)-of-lesion along the peripheral auditory system in humans. DESIGN Adults with audiometric normal hearing were tested on a battery of behavioral and physiologic measures that included (1) thresholds in quiet (TIQ), (2) thresholds in noise (TIN), (3) frequency-modulation detection threshold (FMDT), (4) word recognition in four listening conditions, (5) distortion-product otoacoustic emissions (DPOAE), (6) middle ear muscle reflex (MEMR), (7) tone burst-elicited auditory brainstem response (tbABR), and (8) speech-evoked ABR (sABR). Data collection for each measure was repeated over two visits separated by at least one week. The residuals of the correlation between the suprathreshold measures and TIQ serve as functional and quantitative proxies for threshold-independent hearing disorders because they represent the portion of the raw measures that is not dependent on TIQ. Reliability of the residual measures was assessed using intraclass correlation (ICC). RESULTS Reliability for the residual measures was good (ICC ≥ 0.75) for FMDT, DPOAEs, and MEMR. Residual measures showing moderate reliability (0.5 ≤ ICC < 0.75) were tbABR wave I amplitude, TIN, and word recognition in quiet, noise, and time-compressed speech with reverberation. Wave V of the tbABR, waves of the sABR, and recognition of time-compressed words had poor test-retest reliability (ICC < 0.5). CONCLUSIONS Reliability of residual measures was mixed, suggesting that care should be taken when selecting measures for diagnostic tests of threshold-independent hearing disorders. Quantifying hidden hearing loss as the variance in suprathreshold measures of auditory function that is not due to TIQ may provide a reliable estimate of threshold-independent hearing disorders in humans.
Collapse
|
21
|
Utilizing Electrocochleography as a Microphone for Fully Implantable Cochlear Implants. Sci Rep 2020; 10:3714. [PMID: 32111954 PMCID: PMC7048783 DOI: 10.1038/s41598-020-60694-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/13/2020] [Indexed: 11/09/2022] Open
Abstract
Current cochlear implants (CIs) are semi-implantable devices with an externally worn sound processor that hosts the microphone and sound processor. A fully implantable device, however, would ultimately be desirable as it would be of great benefit to recipients. While some prototypes have been designed and used in a few select cases, one main stumbling block is the sound input. Specifically, subdermal implantable microphone technology has been poised with physiologic issues such as sound distortion and signal attenuation under the skin. Here we propose an alternative method that utilizes a physiologic response composed of an electrical field generated by the sensory cells of the inner ear to serve as a sound source microphone for fully implantable hearing technology such as CIs. Electrophysiological results obtained from 14 participants (adult and pediatric) document the feasibility of capturing speech properties within the electrocochleography (ECochG) response. Degradation of formant properties of the stimuli /da/ and /ba/ are evaluated across various degrees of hearing loss. Preliminary results suggest proof-of-concept of using the ECochG response as a microphone is feasible to capture vital properties of speech. However, further signal processing refinement is needed in addition to utilization of an intracochlear recording location to likely improve signal fidelity.
Collapse
|
22
|
Musacchia G, Hu J, Bhutani VK, Wong RJ, Tong ML, Han S, Blevins NH, Fitzgerald MB. Frequency-following response among neonates with progressive moderate hyperbilirubinemia. J Perinatol 2020; 40:203-211. [PMID: 31263204 DOI: 10.1038/s41372-019-0421-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 05/01/2019] [Accepted: 05/23/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To evaluate the feasibility of auditory monitoring of neurophysiological status using frequency-following response (FFR) in neonates with progressive moderate hyperbilirubinemia, measured by transcutaneous (TcB) levels. STUDY DESIGN ABR and FFR measures were compared and correlated with TcB levels across three groups. Group I was a healthy cohort (n = 13). Group II (n = 28) consisted of neonates with progressive, moderate hyperbilirubinemia and Group III consisted of the same neonates, post physician-ordered phototherapy. RESULT FFR amplitudes in Group I controls (TcB = 83.1 ± 32.5µmol/L; 4.9 ± 1.9 mg/dL) were greater than Group II (TcB = 209.3 ± 48.0µmol/L; 12.1 ± 2.8 mg/dL). After TcB was lowered by phototherapy, FFR amplitudes in Group III were similar to controls. Lower TcB levels correlated with larger FFR amplitudes (r = -0.291, p = 0.015), but not with ABR wave amplitude or latencies. CONCLUSION The FFR is a promising measure of the dynamic neurophysiological status in neonates, and may be useful in tracking neurotoxicity in infants with hyperbilirubinemia.
Collapse
Affiliation(s)
- Gabriella Musacchia
- Department of Audiology, University of the Pacific, San Francisco, CA, 94103, USA. .,Department of Otolaryngology - Head and Neck Surgery, Stanford University, Stanford, CA, 94305, USA.
| | - Jiong Hu
- Department of Audiology, University of the Pacific, San Francisco, CA, 94103, USA
| | - Vinod K Bhutani
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Ronald J Wong
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Mei-Ling Tong
- Department of Pediatrics, Nanjing Maternal and Child health Hospital of Nanjing Medical University, Nanjing, China
| | - Shuping Han
- Department of Pediatrics, Nanjing Maternal and Child health Hospital of Nanjing Medical University, Nanjing, China
| | - Nikolas H Blevins
- Department of Otolaryngology - Head and Neck Surgery, Stanford University, Stanford, CA, 94305, USA
| | - Matthew B Fitzgerald
- Department of Otolaryngology - Head and Neck Surgery, Stanford University, Stanford, CA, 94305, USA
| |
Collapse
|
23
|
White-Schwoch T, Krizman J, McCracken K, Burgess JK, Thompson EC, Nicol T, Kraus N, LaBella CR. Baseline profiles of auditory, vestibular, and visual functions in youth tackle football players. Concussion 2020; 4:CNC66. [PMID: 31984138 PMCID: PMC6964203 DOI: 10.2217/cnc-2019-0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Aim Neurosensory tests have emerged as components of sport-related concussion management. Limited normative data are available in healthy, nonconcussed youth athletes. Patients & methods/results In 2017 and 2018, we tested 108 youth tackle football players immediately before their seasons on the frequency-following response, Balance Error Scoring System, and King-Devick test. We compared results with published data in older and/or and nonathlete populations. Performance on all tests improved with age. Frequency-following response and Balance Error Scoring System results aligned with socioeconomic status. Performance was not correlated across neurosensory domains. Conclusion Baseline neurosensory functions in seven 14-year-old male tackle football players are consistent with previously published data. Results reinforce the need for individual baselines or demographic-specific norms and the use of multiple neurosensory measures in sport-related concussion management.
Collapse
Affiliation(s)
- Travis White-Schwoch
- Auditory Neuroscience Laboratory & Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Jennifer Krizman
- Auditory Neuroscience Laboratory & Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Kristi McCracken
- Division of Orthopaedic Surgery & Sports Medicine, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Jamie K Burgess
- Division of Orthopaedic Surgery & Sports Medicine, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Elaine C Thompson
- Auditory Neuroscience Laboratory & Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA.,Now at Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Trent Nicol
- Auditory Neuroscience Laboratory & Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory & Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA.,Departments of Neurobiology and Otolaryngology, Northwestern University, Evanston, IL 60208, USA
| | - Cynthia R LaBella
- Division of Orthopaedic Surgery & Sports Medicine, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| |
Collapse
|
24
|
BinKhamis G, Elia Forte A, Reichenbach T, O'Driscoll M, Kluk K. Speech Auditory Brainstem Responses in Adult Hearing Aid Users: Effects of Aiding and Background Noise, and Prediction of Behavioral Measures. Trends Hear 2019; 23:2331216519848297. [PMID: 31264513 PMCID: PMC6607564 DOI: 10.1177/2331216519848297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Evaluation of patients who are unable to provide behavioral responses on standard clinical measures is challenging due to the lack of standard objective (non-behavioral) clinical audiological measures that assess the outcome of an intervention (e.g., hearing aids). Brainstem responses to short consonant-vowel stimuli (speech-auditory brainstem responses [speech-ABRs]) have been proposed as a measure of subcortical encoding of speech, speech detection, and speech-in-noise performance in individuals with normal hearing. Here, we investigated the potential application of speech-ABRs as an objective clinical outcome measure of speech detection, speech-in-noise detection and recognition, and self-reported speech understanding in 98 adults with sensorineural hearing loss. We compared aided and unaided speech-ABRs, and speech-ABRs in quiet and in noise. In addition, we evaluated whether speech-ABR F0 encoding (obtained from the complex cross-correlation with the 40 ms [da] fundamental waveform) predicted aided behavioral speech recognition in noise or aided self-reported speech understanding. Results showed that (a) aided speech-ABRs had earlier peak latencies, larger peak amplitudes, and larger F0 encoding amplitudes compared to unaided speech-ABRs; (b) the addition of background noise resulted in later F0 encoding latencies but did not have an effect on peak latencies and amplitudes or on F0 encoding amplitudes; and (c) speech-ABRs were not a significant predictor of any of the behavioral or self-report measures. These results show that speech-ABR F0 encoding is not a good predictor of speech-in-noise recognition or self-reported speech understanding with hearing aids. However, our results suggest that speech-ABRs may have potential for clinical application as an objective measure of speech detection with hearing aids.
Collapse
Affiliation(s)
- Ghada BinKhamis
- 1 Manchester Centre for Audiology and Deafness, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,2 Department of Communication and Swallowing Disorders, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Antonio Elia Forte
- 3 John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Tobias Reichenbach
- 4 Department of Bioengineering, Centre for Neurotechnology, Imperial College London, London, UK
| | - Martin O'Driscoll
- 1 Manchester Centre for Audiology and Deafness, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,5 Manchester Auditory Implant Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Karolina Kluk
- 1 Manchester Centre for Audiology and Deafness, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| |
Collapse
|
25
|
Kamerer AM, AuBuchon A, Fultz SE, Kopun JG, Neely ST, Rasetshwane DM. The Role of Cognition in Common Measures of Peripheral Synaptopathy and Hidden Hearing Loss. Am J Audiol 2019; 28:843-856. [PMID: 31647880 DOI: 10.1044/2019_aja-19-0063] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Purpose The aim of this study was to quantify the portion of variance in several measures suggested to be indicative of peripheral noise-induced cochlear synaptopathy and hidden hearing disorder that can be attributed to individual cognitive capacity. Method Regression and relative importance analysis was used to model several behavioral and physiological measures of hearing in 32 adults ranging in age from 20 to 74 years. Predictors for the model were hearing sensitivity and performance on a number of cognitive tasks. Results There was a significant influence of cognitive capacity on several measures of cochlear synaptopathy and hidden hearing disorder. These measures include frequency modulation detection threshold, time-compressed word recognition in quiet and reverberation, and the strength of the frequency-following response of the speech-evoked auditory brainstem response. Conclusions Measures of hearing that involve temporal processing are significantly influenced by cognitive abilities, specifically, short-term and working memory capacity, executive function, and attention. Research using measures of temporal processing to diagnose peripheral disorders, such as noise-induced synaptopathy, need to consider cognitive influence even in a young, healthy population.
Collapse
Affiliation(s)
- Aryn M. Kamerer
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE
| | - Angela AuBuchon
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE
| | - Sara E. Fultz
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE
| | - Judy G. Kopun
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE
| | - Stephen T. Neely
- Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE
| | | |
Collapse
|
26
|
Speech Auditory Brainstem Responses: Effects of Background, Stimulus Duration, Consonant-Vowel, and Number of Epochs. Ear Hear 2019; 40:659-670. [PMID: 30124503 PMCID: PMC6493675 DOI: 10.1097/aud.0000000000000648] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Supplemental Digital Content is available in the text. Objectives: The aims of this study were to systematically explore the effects of stimulus duration, background (quiet versus noise), and three consonant–vowels on speech-auditory brainstem responses (ABRs). Additionally, the minimum number of epochs required to record speech-ABRs with clearly identifiable waveform components was assessed. The purpose was to evaluate whether shorter duration stimuli could be reliably used to record speech-ABRs both in quiet and in background noise to the three consonant–vowels, as opposed to longer duration stimuli that are commonly used in the literature. Shorter duration stimuli and a smaller number of epochs would require shorter test sessions and thus encourage the transition of the speech-ABR from research to clinical practice. Design: Speech-ABRs in response to 40 msec [da], 50 msec [ba] [da] [ga], and 170 msec [ba] [da] [ga] stimuli were collected from 12 normal-hearing adults with confirmed normal click-ABRs. Monaural (right-ear) speech-ABRs were recorded to all stimuli in quiet and to 40 msec [da], 50 msec [ba] [da] [ga], and 170 msec [da] in a background of two-talker babble at +10 dB signal to noise ratio using a 2-channel electrode montage (Cz-Active, A1 and A2-reference, Fz-ground). Twelve thousand epochs (6000 per polarity) were collected for each stimulus and background from all participants. Latencies and amplitudes of speech-ABR peaks (V, A, D, E, F, O) were compared across backgrounds (quiet and noise) for all stimulus durations, across stimulus durations (50 and 170 msec) and across consonant–vowels ([ba], [da], and [ga]). Additionally, degree of phase locking to the stimulus fundamental frequency (in quiet versus noise) was evaluated for the frequency following response in speech-ABRs to the 170 msec [da]. Finally, the number of epochs required for a robust response was evaluated using Fsp statistic and bootstrap analysis at different epoch iterations. Results: Background effect: the addition of background noise resulted in speech-ABRs with longer peak latencies and smaller peak amplitudes compared with speech-ABRs in quiet, irrespective of stimulus duration. However, there was no effect of background noise on the degree of phase locking of the frequency following response to the stimulus fundamental frequency in speech-ABRs to the 170 msec [da]. Duration effect: speech-ABR peak latencies and amplitudes did not differ in response to the 50 and 170 msec stimuli. Consonant–vowel effect: different consonant–vowels did not have an effect on speech-ABR peak latencies regardless of stimulus duration. Number of epochs: a larger number of epochs was required to record speech-ABRs in noise compared with in quiet, and a smaller number of epochs was required to record speech-ABRs to the 40 msec [da] compared with the 170 msec [da]. Conclusions: This is the first study that systematically investigated the clinical feasibility of speech-ABRs in terms of stimulus duration, background noise, and number of epochs. Speech-ABRs can be reliably recorded to the 40 msec [da] without compromising response quality even when presented in background noise. Because fewer epochs were needed for the 40 msec [da], this would be the optimal stimulus for clinical use. Finally, given that there was no effect of consonant–vowel on speech-ABR peak latencies, there is no evidence that speech-ABRs are suitable for assessing auditory discrimination of the stimuli used.
Collapse
|
27
|
Objective Comparison of the Quality and Reliability of Auditory Brainstem Response Features Elicited by Click and Speech Sounds. Ear Hear 2019; 40:447-457. [PMID: 30142101 DOI: 10.1097/aud.0000000000000639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Auditory brainstem responses (ABRs) are commonly generated using simple, transient stimuli (e.g., clicks or tone bursts). While resulting waveforms are undeniably valuable clinical tools, they are unlikely to be representative of responses to more complex, behaviorally relevant sounds such as speech. There has been interest in the use of more complex stimuli to elicit the ABR, with considerable work focusing on the use of synthetically generated consonant-vowel (CV) stimuli. Such responses may be sensitive to a range of clinical conditions and to the effects of auditory training. Several ABR features have been documented in response to CV stimuli; however, an important issue is how robust such features are. In the current research, we use time- and frequency-domain objective measures of quality to compare the reliability of Wave V of the click-evoked ABR to that of waves elicited by the CV stimulus /da/. DESIGN Stimuli were presented to 16 subjects at 70 dB nHL in quiet for 6000 epochs. The presence and quality of response features across subjects were examined using Fsp and a Bootstrap analysis method, which was used to assign p values to ABR features for individual recordings in both time and frequency domains. RESULTS All consistent peaks identified within the /da/-evoked response had significantly lower amplitude than Wave V of the ABR. The morphology of speech-evoked waveforms varied across subjects. Mean Fsp values for several waves of the speech-evoked ABR were below 3, suggesting low quality. The most robust response to the /da/ stimulus appeared to be an offset response. Only click-evoked Wave V showed 100% wave presence. Responses to the /da/ stimulus showed lower wave detectability. Frequency-domain analysis showed stronger and more consistent activity evoked by clicks than by /da/. Only the click ABR had consistent time-frequency domain features across all subjects. CONCLUSIONS Based on the objective analysis used within this investigation, it appears that the quality of speech-evoked ABR is generally less than that of click-evoked responses, although the quality of responses may be improved by increasing the number of epochs or the stimulation level. This may have implications for the clinical use of speech-evoked ABR.
Collapse
|
28
|
White-Schwoch T, Krizman J, McCracken K, Burgess JK, Thompson EC, Nicol T, LaBella CR, Kraus N. Performance on auditory, vestibular, and visual tests is stable across two seasons of youth tackle football. Brain Inj 2019; 34:236-244. [DOI: 10.1080/02699052.2019.1683899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Travis White-Schwoch
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, Illinois, USA
| | - Jennifer Krizman
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, Illinois, USA
| | - Kristi McCracken
- Division of Orthopaedic Surgery and Sports Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
| | - Jamie K. Burgess
- Division of Orthopaedic Surgery and Sports Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
| | - Elaine C. Thompson
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, Illinois, USA
| | - Trent Nicol
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, Illinois, USA
| | - Cynthia R. LaBella
- Division of Orthopaedic Surgery and Sports Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, Illinois, USA
- Departments of Neurobiology and Otolaryngology, Northwestern University, Evanston, Illinois, USA
| |
Collapse
|
29
|
Sanfins MD, Hatzopoulos S, Donadon C, Diniz TA, Borges LR, Skarzynski PH, Colella-Santos MF. An Analysis of The Parameters Used In Speech ABR Assessment Protocols. J Int Adv Otol 2019; 14:100-105. [PMID: 29764783 DOI: 10.5152/iao.2018.3574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to assess the parameters of choice, such as duration, intensity, rate, polarity, number of sweeps, window length, stimulated ear, fundamental frequency, first formant, and second formant, from previously published speech ABR studies. To identify candidate articles, five databases were assessed using the following keyword descriptors: speech ABR, ABR-speech, speech auditory brainstem response, auditory evoked potential to speech, speech-evoked brainstem response, and complex sounds. The search identified 1288 articles published between 2005 and 2015. After filtering the total number of papers according to the inclusion and exclusion criteria, 21 studies were selected. Analyzing the protocol details used in 21 studies suggested that there is no consensus to date on a speech-ABR protocol and that the parameters of analysis used are quite variable between studies. This inhibits the wider generalization and extrapolation of data across languages and studies.
Collapse
Affiliation(s)
- Milaine D Sanfins
- Department of Health and Adolescent Health, Faculty of Medical Sciences, São Paulo, Brazil
| | - Stavros Hatzopoulos
- Clinic of Audiology and ENT, University of Ferrara, School of Medicine, Ferrara, Italy
| | - Caroline Donadon
- Department of Health and Adolescent Health, Faculty of Medical Sciences, São Paulo, Brazil
| | - Thais A Diniz
- Department of Health and Adolescent Health, Faculty of Medical Sciences, São Paulo, Brazil
| | - Leticia R Borges
- Department of Health and Adolescent Health, Faculty of Medical Sciences, São Paulo, Brazil
| | - Piotr H Skarzynski
- Department of Heart Failure and Cardiac Rehabilitation, Medical University of Warsaw, Warsaw, Poland; Institute of Physiology and Pathology of Hearing, Warsaw, Poland; Institute of Sensory Organs, Kajetany, Poland
| | | |
Collapse
|
30
|
Krizman J, Kraus N. Analyzing the FFR: A tutorial for decoding the richness of auditory function. Hear Res 2019; 382:107779. [PMID: 31505395 PMCID: PMC6778514 DOI: 10.1016/j.heares.2019.107779] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/01/2019] [Accepted: 08/06/2019] [Indexed: 01/12/2023]
Abstract
The frequency-following response, or FFR, is a neurophysiological response to sound that precisely reflects the ongoing dynamics of sound. It can be used to study the integrity and malleability of neural encoding of sound across the lifespan. Sound processing in the brain can be impaired with pathology and enhanced through expertise. The FFR can index linguistic deprivation, autism, concussion, and reading impairment, and can reflect the impact of enrichment with short-term training, bilingualism, and musicianship. Because of this vast potential, interest in the FFR has grown considerably in the decade since our first tutorial. Despite its widespread adoption, there remains a gap in the current knowledge of its analytical potential. This tutorial aims to bridge this gap. Using recording methods we have employed for the last 20 + years, we have explored many analysis strategies. In this tutorial, we review what we have learned and what we think constitutes the most effective ways of capturing what the FFR can tell us. The tutorial covers FFR components (timing, fundamental frequency, harmonics) and factors that influence FFR (stimulus polarity, response averaging, and stimulus presentation/recording jitter). The spotlight is on FFR analyses, including ways to analyze FFR timing (peaks, autocorrelation, phase consistency, cross-phaseogram), magnitude (RMS, SNR, FFT), and fidelity (stimulus-response correlations, response-to-response correlations and response consistency). The wealth of information contained within an FFR recording brings us closer to understanding how the brain reconstructs our sonic world.
Collapse
Affiliation(s)
- Jennifer Krizman
- Auditory Neuroscience Laboratory, Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, 60208, USA. https://www.brainvolts.northwestern.edu
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, 60208, USA; Department of Neurobiology, Northwestern University, Evanston, IL, 60208, USA.
| |
Collapse
|
31
|
Llanos F, Xie Z, Chandrasekaran B. Biometric identification of listener identity from frequency following responses to speech. J Neural Eng 2019; 16:056004. [PMID: 31039552 DOI: 10.1088/1741-2552/ab1e01] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE We investigate the biometric specificity of the frequency following response (FFR), an EEG marker of early auditory processing that reflects phase-locked activity from neural ensembles in the auditory cortex and subcortex (Chandrasekaran and Kraus 2010, Bidelman, 2015a, 2018, Coffey et al 2017b). Our objective is two-fold: demonstrate that the FFR contains information beyond stimulus properties and broad group-level markers, and to assess the practical viability of the FFR as a biometric across different sounds, auditory experiences, and recording days. APPROACH We trained the hidden Markov model (HMM) to decode listener identity from FFR spectro-temporal patterns across multiple frequency bands. Our dataset included FFRs from twenty native speakers of English or Mandarin Chinese (10 per group) listening to Mandarin Chinese tones across three EEG sessions separated by days. We decoded subject identity within the same auditory context (same tone and session) and across different stimuli and recording sessions. MAIN RESULTS The HMM decoded listeners for averaging sizes as small as one single FFR. However, model performance improved for larger averaging sizes (e.g. 25 FFRs), similarity in auditory context (same tone and day), and lack of familiarity with the sounds (i.e. native English relative to native Chinese listeners). Our results also revealed important biometric contributions from frequency bands in the cortical and subcortical EEG. SIGNIFICANCE Our study provides the first deep and systematic biometric characterization of the FFR and provides the basis for biometric identification systems incorporating this neural signal.
Collapse
Affiliation(s)
- Fernando Llanos
- Department of Communication Sciences and Disorders, University of Pittsburgh, Pittsburgh, PA 15213, United States of America
| | | | | |
Collapse
|
32
|
BinKhamis G, Perugia E, O'Driscoll M, Kluk K. Speech-ABRs in cochlear implant recipients: feasibility study. Int J Audiol 2019; 58:678-684. [PMID: 31132012 DOI: 10.1080/14992027.2019.1619100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: The aim of this study was to assess the feasibility of recording speech-ABRs from cochlear implant (CI) recipients, and to remove the artefact using a clinically applicable single-channel approach. Design: Speech-ABRs were recorded to a 40 ms [da] presented via loudspeaker using a two-channel electrode montage. Additionally, artefacts were recorded using an artificial-head incorporating a MED-EL CI with stimulation parameters as similar as possible to those of three MED-EL participants. A single-channel artefact removal technique was applied to all responses. Study sample: A total of 12 adult CI recipients (6 Cochlear Nucleus and 6 MED-EL CIs). Results: Responses differed according to the CI type, artefact removal resulted in responses containing speech-ARB characteristics in two MED-EL CI participants; however, it was not possible to verify whether these were true responses or were modulated by artefacts, and artefact removal was successful from the artificial-head recordings. Conclusions: This is the first study that attempted to record speech-ABRs from CI recipients. Results suggest that there is a potential for application of a single-channel approach to artefact removal. However, a more robust and adaptive approach to artefact removal that includes a method to verify true responses is needed.
Collapse
Affiliation(s)
- Ghada BinKhamis
- Manchester Centre for Audiology and Deafness, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK.,King Fahad Medical City , Riyadh , Saudi Arabia
| | - Emanuele Perugia
- Manchester Centre for Audiology and Deafness, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK
| | - Martin O'Driscoll
- Manchester Centre for Audiology and Deafness, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK.,Manchester Auditory Implant Centre, Manchester University Hospitals NHS Foundation Trust , Manchester , UK
| | - Karolina Kluk
- Manchester Centre for Audiology and Deafness, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK
| |
Collapse
|
33
|
Musacchia G, Ortiz-Mantilla S, Roesler CP, Rajendran S, Morgan-Byrne J, Benasich AA. Effects of noise and age on the infant brainstem response to speech. Clin Neurophysiol 2018; 129:2623-2634. [DOI: 10.1016/j.clinph.2018.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/20/2018] [Accepted: 08/24/2018] [Indexed: 12/23/2022]
|
34
|
Abstract
Cochlear implants restore hearing in deaf individuals, but speech perception remains challenging. Poor discrimination of spectral components is thought to account for limitations of speech recognition in cochlear implant users. We investigated how combined variations of spectral components along two orthogonal dimensions can maximize neural discrimination between two vowels, as measured by mismatch negativity. Adult cochlear implant users and matched normal-hearing listeners underwent electroencephalographic event-related potentials recordings in an optimum-1 oddball paradigm. A standard /a/ vowel was delivered in an acoustic free field along with stimuli having a deviant fundamental frequency (+3 and +6 semitones), a deviant first formant making it a /i/ vowel or combined deviant fundamental frequency and first formant (+3 and +6 semitones /i/ vowels). Speech recognition was assessed with a word repetition task. An analysis of variance between both amplitude and latency of mismatch negativity elicited by each deviant vowel was performed. The strength of correlations between these parameters of mismatch negativity and speech recognition as well as participants' age was assessed. Amplitude of mismatch negativity was weaker in cochlear implant users but was maximized by variations of vowels' first formant. Latency of mismatch negativity was later in cochlear implant users and was particularly extended by variations of the fundamental frequency. Speech recognition correlated with parameters of mismatch negativity elicited by the specific variation of the first formant. This nonlinear effect of acoustic parameters on neural discrimination of vowels has implications for implant processor programming and aural rehabilitation.
Collapse
Affiliation(s)
- François Prévost
- 1 Department of Speech Pathology and Audiology, McGill University Health Centre, Montreal, Quebec, Canada.,2 International Laboratory for Brain, Music & Sound Research, Montreal, Quebec, Canada
| | - Alexandre Lehmann
- 2 International Laboratory for Brain, Music & Sound Research, Montreal, Quebec, Canada.,3 Department of Otolaryngology-Head and Neck Surgery, McGill University, Montreal, Quebec, Canada.,4 Centre for Research on Brain, Language & Music, Montreal, Quebec, Canada
| |
Collapse
|
35
|
Gabriel LB, Vernier LS, Ferreira MIDDC, Silveira AL, Machado MS. Parameters for Applying the Brainstem Auditory Evoked Potential with Speech Stimulus: Systematic Review. Int Arch Otorhinolaryngol 2018; 22:460-468. [PMID: 30357057 PMCID: PMC6197961 DOI: 10.1055/s-0037-1605598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 06/29/2017] [Indexed: 11/08/2022] Open
Abstract
Introduction
Studies using the Brainstem Auditory Evoked Potential with speech stimulus are increasing in Brazil, and there are divergences between the methodologies used for testing.
Objectives
To analyze the parameters used in the study of the Brainstem Auditory Evoked Potentials with speech stimulus.
Data Synthesis
The survey was performed using electronic databases. The search strategy was as follows: “Evoked potentials, auditory” OR “Brain stem” OR “Evoked potentials, auditory, brain stem” AND “Speech.” The survey was performed from June to July of 2016. The criteria used for including articles in this study were: being written in Portuguese, English or Spanish; presenting the description of the testing parameters and the description of the sample. In the databases selected, 2,384 articles were found, and 43 articles met all of the inclusion criteria. The predominance of the following parameters was observed to achieve the potential during study: stimulation with the syllable /da/; monaural presentation with greater use of the right ear; intensity of 80 dB SPL; vertical placement of electrodes; use of in-ear headphones; patient seated, distracted in awake state; alternating polarity; use of speech synthesizer software for the elaboration of stimuli; presentation rate of 10.9/s; and sampling rate of 20 kHz.
Conclusions
The theme addressed in this systematic review is relatively recent. However, the results are significant enough to encourage the use of the procedure in clinical practice and advise clinicians about the most used procedures in each parameter.
Collapse
Affiliation(s)
- Luísa Bello Gabriel
- Phonoaudiology, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Luíza Silva Vernier
- Speech Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | | | | | - Márcia Salgado Machado
- Phonoaudiology, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| |
Collapse
|
36
|
Bidelman G, Powers L. Response properties of the human frequency-following response (FFR) to speech and non-speech sounds: level dependence, adaptation and phase-locking limits. Int J Audiol 2018; 57:665-672. [DOI: 10.1080/14992027.2018.1470338] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Gavin Bidelman
- Institute for Intelligent Systems, University of Memphis, Memphis, TN, USA
- School of Communication Sciences & Disorders, University of Memphis, Memphis, TN, USA
- Department of Anatomy and Neurobiology, University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - Louise Powers
- School of Communication Sciences & Disorders, University of Memphis, Memphis, TN, USA
| |
Collapse
|
37
|
Rostami S, Moossavi A, Ahadi M, Jalaei S. Brainstem Correlates of Comodulation Masking Release for Speech in Normal Hearing Adults. J Audiol Otol 2018; 22:128-133. [PMID: 29656636 PMCID: PMC6103495 DOI: 10.7874/jao.2017.00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 02/21/2018] [Indexed: 11/30/2022] Open
Abstract
Background and Objectives Weak signals embedded in fluctuating masker can be perceived more efficiently than similar signals embedded in unmodulated masker. This release from masking is known as comodulation masking release (CMR). In this paper, we investigate, neural correlates of CMR in the human auditory brainstem. Subjects and Methods A total of 26 normal hearing subjects aged 18-30 years participated in this study. First, the impact of CMR was quantified by a behavioral experiment. After that, the brainstem correlates of CMR was investigated by the auditory brainstem response to complex sounds (cABR) in comodulated (CM) and unmodulated (UM) masking conditions. Results The auditory brainstem responses are less susceptible to degradation in response to the speech syllable /da/ in the CM noise masker in comparison with the UM noise masker. In the CM noise masker, frequency-following response (FFR) and fundamental frequency (F0) were correlated with better behavioral CMR. Furthermore, the subcortical response timing of subjects with higher CMR was less affected by the CM noise masker, having higher stimulus-to-noise response correlations over the FFR range. Conclusions The results of the present study revealed a significant link between brainstem auditory processes and CMR. The findings of the present study show that cABR provides objective information about the neural correlates of CMR for speech stimulus.
Collapse
Affiliation(s)
- Soheila Rostami
- Department of Audiology, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Abdollah Moossavi
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Ahadi
- Department of Audiology, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Shohreh Jalaei
- Department of Statistics, Faculty of Rehabilitation Sciences, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
38
|
Mai G, Tuomainen J, Howell P. Relationship between speech-evoked neural responses and perception of speech in noise in older adults. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2018; 143:1333. [PMID: 29604686 DOI: 10.1121/1.5024340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Speech-in-noise (SPIN) perception involves neural encoding of temporal acoustic cues. Cues include temporal fine structure (TFS) and envelopes that modulate at syllable (Slow-rate ENV) and fundamental frequency (F0-rate ENV) rates. Here the relationship between speech-evoked neural responses to these cues and SPIN perception was investigated in older adults. Theta-band phase-locking values (PLVs) that reflect cortical sensitivity to Slow-rate ENV and peripheral/brainstem frequency-following responses phase-locked to F0-rate ENV (FFRENV_F0) and TFS (FFRTFS) were measured from scalp-electroencephalography responses to a repeated speech syllable in steady-state speech-shaped noise (SpN) and 16-speaker babble noise (BbN). The results showed that (1) SPIN performance and PLVs were significantly higher under SpN than BbN, implying differential cortical encoding may serve as the neural mechanism of SPIN performance that varies as a function of noise types; (2) PLVs and FFRTFS at resolved harmonics were significantly related to good SPIN performance, supporting the importance of phase-locked neural encoding of Slow-rate ENV and TFS of resolved harmonics during SPIN perception; (3) FFRENV_F0 was not associated to SPIN performance until audiometric threshold was controlled for, indicating that hearing loss should be carefully controlled when studying the role of neural encoding of F0-rate ENV. Implications are drawn with respect to fitting auditory prostheses.
Collapse
Affiliation(s)
- Guangting Mai
- Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, WC1H 0AP, England
| | - Jyrki Tuomainen
- Department of Speech, Hearing and Phonetic Sciences, Division of Psychology and Language Sciences, University College London, London, WC1N 1PF, England
| | - Peter Howell
- Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, WC1H 0AP, England
| |
Collapse
|
39
|
Zakaria MN, Jalaei B. Test-retest reliability of speech-evoked auditory brainstem response in healthy children at a low sensation level. Int J Pediatr Otorhinolaryngol 2017; 102:28-31. [PMID: 29106871 DOI: 10.1016/j.ijporl.2017.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/25/2017] [Accepted: 08/28/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Auditory brainstem responses evoked by complex stimuli such as speech syllables have been studied in normal subjects and subjects with compromised auditory functions. The stability of speech-evoked auditory brainstem response (speech-ABR) when tested over time has been reported but the literature is limited. The present study was carried out to determine the test-retest reliability of speech-ABR in healthy children at a low sensation level. METHODS Seventeen healthy children (6 boys, 11 girls) aged from 5 to 9 years (mean = 6.8 ± 3.3 years) were tested in two sessions separated by a 3-month period. The stimulus used was a 40-ms syllable /da/ presented at 30 dB sensation level. RESULTS As revealed by pair t-test and intra-class correlation (ICC) analyses, peak latencies, peak amplitudes and composite onset measures of speech-ABR were found to be highly replicable. Compared to other parameters, higher ICC values were noted for peak latencies of speech-ABR. CONCLUSION The present study was the first to report the test-retest reliability of speech-ABR recorded at low stimulation levels in healthy children. Due to its good stability, it can be used as an objective indicator for assessing the effectiveness of auditory rehabilitation in hearing-impaired children in future studies.
Collapse
Affiliation(s)
- Mohd Normani Zakaria
- Audiology and Speech Pathology Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
| | - Bahram Jalaei
- Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
40
|
Jeng FC, Lee CY, McDonald TN, Ganch HM, Teets EA, Hart BN. Subcortical frequency-coding errors are linked to speaker-variability intolerance in normal-hearing adults. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2017; 142:EL270. [PMID: 28964068 DOI: 10.1121/1.5002150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Processing speaker-specific information is an important task in daily communication. This study examined how fundamental frequency (F0) cues were encoded at the subcortical level, as reflected by scalp-recorded frequency-following responses, and their relationship with the listener's ability in processing speech stimuli produced by multiple speakers. By using Mandarin tones with distinctive F0 contours, the results indicated that subcortical frequency-coding errors were significantly correlated with the listener's speaker-variability intolerance for both percent correct and reaction time measures. These findings lay a foundation to help improve the understanding of how speaker information is processed in individuals with normal and impaired auditory systems.
Collapse
Affiliation(s)
- Fuh-Cherng Jeng
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| | - Chao-Yang Lee
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| | - Tiffany N McDonald
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| | - Hallie M Ganch
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| | - Elizabeth A Teets
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| | - Breanna N Hart
- Communication Sciences and Disorders, Ohio University, Grover Center W224, Athens, Ohio 45701, USA , , , , ,
| |
Collapse
|
41
|
Rostami S, Moossavi A. Musical Training Enhances Neural Processing of Comodulation Masking Release in the Auditory Brainstem. Audiol Res 2017; 7:185. [PMID: 28890775 PMCID: PMC5582414 DOI: 10.4081/audiores.2017.185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/19/2017] [Indexed: 12/03/2022] Open
Abstract
Musical training strengthens segregation the target signal from background noise. Musicians have enhanced stream segregation, which can be considered a process similar to comodulation masking release. In the current study, we surveyed psychoacoustical comodulation masking release in musicians and non-musicians. We then recorded the brainstem responses to complex stimuli in comodulated and unmodulated maskers to investigate the effect of musical training on the neural representation of comodulation masking release for the first time. The musicians showed significantly greater amplitudes and earlier brainstem response timing for stimulus in the presence of comodulated maskers than non-musicians. In agreement with the results of psychoacoustical experiment, musicians showed greater comodulation masking release than non-musicians. These results reveal a physiological explanation for behavioral enhancement of comodulation masking release and stream segregation in musicians.
Collapse
Affiliation(s)
- Soheila Rostami
- Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Abdollah Moossavi
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
42
|
Liu J, Wang D, Li X, Wang N. Association Between Sex and Speech Auditory Brainstem Responses in Adults, and Relationship to Sex Hormone Levels. Med Sci Monit 2017; 23:2275-2283. [PMID: 28501877 PMCID: PMC5439379 DOI: 10.12659/msm.904651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 04/26/2017] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the association between sex and speech-ABR in adults, and its relationship to sex hormone levels. MATERIAL AND METHODS Speech-ABR were elicited with the consonant-vowel syllable (/da/) in a total of 35 adults. Reproductive hormone levels were also measured. RESULTS The transient response of the speech-ABR (waves V, A, and O) in females show a shorter latency (waves V, A and O) and a larger amplitude (waves V and A) than in males (P<0.05), except for the amplitude of peak O (P>0.05). The sustained response of females exhibited a larger amplitude (wave F, P<0.05) and a shorter latency (wave D, E, and F, P<0.05) than in males, except for the amplitude of peak D and E (P>0.05). The latencies of speech-ABR were positively correlated with testosterone level (P<0.05), and were negatively correlated with estradiol (E2) levels (P<0.05), except for wave E (P>0.05). The E2 showed a positive correlation with the absolute value of amplitude of the speech-ABR (P < 0.05). On the contrary, total testosterone showed a negative correlation with the absolute value of amplitude the speech-ABR (P<0.05), except for wave D and wave O (P>0.05). CONCLUSIONS Sex differences in speech-ABR are significant in adults. The latencies and amplitude of the speech-ABR waves were correlated with the E2 concentration and testosterone level. The sex hormones likely affect speech encoding in the brainstem.
Collapse
Affiliation(s)
- Jinfeng Liu
- Corresponding Author: Jinfeng Liu, e-mail: or Ningyu Wang, e-mail:
| | | | | | | |
Collapse
|
43
|
Tichko P, Skoe E. Frequency-dependent fine structure in the frequency-following response: The byproduct of multiple generators. Hear Res 2017; 348:1-15. [DOI: 10.1016/j.heares.2017.01.014] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 01/12/2017] [Accepted: 01/22/2017] [Indexed: 11/28/2022]
|
44
|
Mild Cognitive Impairment Is Characterized by Deficient Brainstem and Cortical Representations of Speech. J Neurosci 2017; 37:3610-3620. [PMID: 28270574 DOI: 10.1523/jneurosci.3700-16.2017] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/21/2017] [Accepted: 02/24/2017] [Indexed: 11/21/2022] Open
Abstract
Mild cognitive impairment (MCI) is recognized as a transitional phase in the progression toward more severe forms of dementia and is an early precursor to Alzheimer's disease. Previous neuroimaging studies reveal that MCI is associated with aberrant sensory-perceptual processing in cortical brain regions subserving auditory and language function. However, whether the pathophysiology of MCI extends to speech processing before conscious awareness (brainstem) is unknown. Using a novel electrophysiological approach, we recorded both brainstem and cortical speech-evoked brain event-related potentials (ERPs) in older, hearing-matched human listeners who did and did not present with subtle cognitive impairment revealed through behavioral neuropsychological testing. We found that MCI was associated with changes in neural speech processing characterized as hypersensitivity (larger) brainstem and cortical speech encoding in MCI compared with controls in the absence of any perceptual speech deficits. Group differences also interacted with age differentially across the auditory pathway; brainstem responses became larger and cortical ERPs smaller with advancing age. Multivariate classification revealed that dual brainstem-cortical speech activity correctly identified MCI listeners with 80% accuracy, suggesting its application as a biomarker of early cognitive decline. Brainstem responses were also a more robust predictor of individuals' MCI severity than cortical activity. Our findings suggest that MCI is associated with poorer encoding and transfer of speech signals between functional levels of the auditory system and advance the pathophysiological understanding of cognitive aging by identifying subcortical deficits in auditory sensory processing mere milliseconds (<10 ms) after sound onset and before the emergence of perceptual speech deficits.SIGNIFICANCE STATEMENT Mild cognitive impairment (MCI) is a precursor to dementia marked by declines in communication skills. Whether MCI pathophysiology extends below cerebral cortex to affect speech processing before conscious awareness (brainstem) is unknown. By recording neuroelectric brain activity to speech from brainstem and cortex, we show that MCI hypersensitizes the normal encoding of speech information across the hearing brain. Deficient neural responses to speech (particularly those generated from the brainstem) predicted the presence of MCI with high accuracy and before behavioral deficits. Our findings advance the neurological understanding of MCI by identifying a subcortical biomarker in auditory-sensory processing before conscious awareness, which may be a precursor to declines in speech understanding.
Collapse
|
45
|
Gama N, Peretz I, Lehmann A. Recording the human brainstem frequency-following-response in the free-field. J Neurosci Methods 2017; 280:47-53. [PMID: 28185890 DOI: 10.1016/j.jneumeth.2017.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND The human auditory brainstem frequency-following response (FFR) is an objective measure used to investigate the brainstem's encoding ability of sounds. Traditionally, FFRs are recorded under close-field conditions (earphones), but free-field stimulations (loudspeaker) have yet to be attempted, which would increase the applications of FFRs by making this technique accessible to those who cannot wear inserted transducers. Here we test the feasibility and reliability of measuring speech ABRs across free and close-field. NEW METHOD The FFR was evoked by a 40-ms consonant-vowel (cv) /da/ syllable which was presented in the standard close-field conditions with insert earphones, and in a novel free-field condition via a loudspeaker. RESULTS A well-defined FFR was observed for each stimulating method (free or close-field). We show that it is possible and reliable to elicit FFRs from a speaker and that these do not systematically differ from those elicited by conventional earphones. COMPARISON WITH EXISTING METHOD Neural responses were subjected to a comparative within-subjects analysis, using standard measures found in the literature in order to quantify and compare the intrinsic (amplitude, noise, consistency), acoustic (latency, spectral amplitude) and reliability properties (intraclass correlation coefficients and Bland and Altman limits of agreement) of the neural signal. CONCLUSIONS Reliable FFRs can be elicited using free-field presentation with comparable to acoustical, intrinsic and reliability properties as those elicited by standard close-field presentations.
Collapse
Affiliation(s)
- Nuno Gama
- International Laboratory for Brain, Music and Sound Research (BRAMS www.brams.org), Outremont, QC, Canada; MRC Institute of Hearing Research, Nottingham, United Kingdom.
| | - Isabelle Peretz
- International Laboratory for Brain, Music and Sound Research (BRAMS www.brams.org), Outremont, QC, Canada; Center for Research on Brain, Language and Music (CRBLM crblm.ca), Montreal, QC, Canada; University of Montreal, Psychology Department, Montreal, QC, Canada
| | - Alexandre Lehmann
- International Laboratory for Brain, Music and Sound Research (BRAMS www.brams.org), Outremont, QC, Canada; Center for Research on Brain, Language and Music (CRBLM crblm.ca), Montreal, QC, Canada; University of Montreal, Psychology Department, Montreal, QC, Canada; Department of Otolaryngology Head & Neck Surgery, McGill University, Montreal, QC, Canada
| |
Collapse
|
46
|
Xie Z, Reetzke R, Chandrasekaran B. Stability and plasticity in neural encoding of linguistically relevant pitch patterns. J Neurophysiol 2017; 117:1407-1422. [PMID: 28077662 DOI: 10.1152/jn.00445.2016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 12/15/2022] Open
Abstract
While lifelong language experience modulates subcortical encoding of pitch patterns, there is emerging evidence that short-term training introduced in adulthood also shapes subcortical pitch encoding. Here we use a cross-language design to examine the stability of language experience-dependent subcortical plasticity over multiple days. We then examine the extent to which behavioral relevance induced by sound-to-category training leads to plastic changes in subcortical pitch encoding in adulthood relative to adolescence, a period of ongoing maturation of subcortical and cortical auditory processing. Frequency-following responses (FFRs), which reflect phase-locked activity from subcortical neural ensembles, were elicited while participants passively listened to pitch patterns reflective of Mandarin tones. In experiment 1, FFRs were recorded across three consecutive days from native Chinese-speaking (n = 10) and English-speaking (n = 10) adults. In experiment 2, FFRs were recorded from native English-speaking adolescents (n = 20) and adults (n = 15) before, during, and immediately after a session of sound-to-category training, as well as a day after training ceased. Experiment 1 demonstrated the stability of language experience-dependent subcortical plasticity in pitch encoding across multiple days of passive exposure to linguistic pitch patterns. In contrast, experiment 2 revealed an enhancement in subcortical pitch encoding that emerged a day after the sound-to-category training, with some developmental differences observed. Taken together, these findings suggest that behavioral relevance is a critical component for the observation of plasticity in the subcortical encoding of pitch.NEW & NOTEWORTHY We examine the timescale of experience-dependent auditory plasticity to linguistically relevant pitch patterns. We find extreme stability in lifelong experience-dependent plasticity. We further demonstrate that subcortical function in adolescents and adults is modulated by a single session of sound-to-category training. Our results suggest that behavioral relevance is a necessary ingredient for neural changes in pitch encoding to be observed throughout human development. These findings contribute to the neurophysiological understanding of long- and short-term experience-dependent modulation of pitch.
Collapse
Affiliation(s)
- Zilong Xie
- Department of Communication Sciences and Disorders, The University of Texas at Austin, Austin, Texas
| | - Rachel Reetzke
- Department of Communication Sciences and Disorders, The University of Texas at Austin, Austin, Texas
| | - Bharath Chandrasekaran
- Department of Communication Sciences and Disorders, The University of Texas at Austin, Austin, Texas; .,Department of Psychology, The University of Texas at Austin, Austin, Texas.,Department of Linguistics, The University of Texas at Austin, Austin, Texas.,Institute for Neuroscience, The University of Texas at Austin, Austin, Texas; and.,Institute for Mental Health Research, The University of Texas at Austin, Austin, Texas
| |
Collapse
|
47
|
Marangoni AT, Suriano ÍC, Buriti AKL, Gil D. Formal Auditory Training with Individuals after Traumatic Brain Injury. Health (London) 2017. [DOI: 10.4236/health.2017.96070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
48
|
Zaballos MTP, Plasencia DP, González MLZ, de Miguel AR, Macías ÁR. Air traffic controllers' long-term speech-in-noise training effects: A control group study. Noise Health 2016; 18:376-381. [PMID: 27991470 PMCID: PMC5227019 DOI: 10.4103/1463-1741.195804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Introduction: Speech perception in noise relies on the capacity of the auditory system to process complex sounds using sensory and cognitive skills. The possibility that these can be trained during adulthood is of special interest in auditory disorders, where speech in noise perception becomes compromised. Air traffic controllers (ATC) are constantly exposed to radio communication, a situation that seems to produce auditory learning. The objective of this study has been to quantify this effect. Subjects and Methods: 19 ATC and 19 normal hearing individuals underwent a speech in noise test with three signal to noise ratios: 5, 0 and −5 dB. Noise and speech were presented through two different loudspeakers in azimuth position. Speech tokes were presented at 65 dB SPL, while white noise files were at 60, 65 and 70 dB respectively. Results: Air traffic controllers outperform the control group in all conditions [P<0.05 in ANOVA and Mann-Whitney U tests]. Group differences were largest in the most difficult condition, SNR=−5 dB. However, no correlation between experience and performance were found for any of the conditions tested. The reason might be that ceiling performance is achieved much faster than the minimum experience time recorded, 5 years, although intrinsic cognitive abilities cannot be disregarded. Discussion: ATC demonstrated enhanced ability to hear speech in challenging listening environments. This study provides evidence that long-term auditory training is indeed useful in achieving better speech-in-noise understanding even in adverse conditions, although good cognitive qualities are likely to be a basic requirement for this training to be effective. Conclusion: Our results show that ATC outperform the control group in all conditions. Thus, this study provides evidence that long-term auditory training is indeed useful in achieving better speech-in-noise understanding even in adverse conditions.
Collapse
Affiliation(s)
- Maria T P Zaballos
- Laboratorio de Psicoacústica, Complejo Hospitalario Universitario Insular Materno Infantil, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Daniel P Plasencia
- ENT Department & Departamento de CC Quirúrgicas, Universidad de Las Palmas de Gran Canaria, Complejo Hospitalario Universitario Insular Materno Infantil, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - María L Z González
- ENT Department, Complejo Hospitalario Universitario Insular Materno Infantil, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Angel R de Miguel
- Instituto Universitario de Sistemas Inteligentes y Aplicaciones Numéricas, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Ángel R Macías
- ENT Department & Departamento de CC Quirúrgicas, Universidad de Las Palmas de Gran Canaria, Complejo Hospitalario Universitario Insular Materno Infantil, Las Palmas de Gran Canaria, Las Palmas, Spain
| |
Collapse
|
49
|
Sanfins MD, Borges LR, Ubiali T, Donadon C, Diniz Hein TA, Hatzopoulos S, Colella-Santos MF. Speech-evoked brainstem response in normal adolescent and children speakers of Brazilian Portuguese. Int J Pediatr Otorhinolaryngol 2016; 90:12-19. [PMID: 27729117 DOI: 10.1016/j.ijporl.2016.08.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
Abstract
This study aimed to analyze the coding responses of speech sounds (syllable/da/) in children and adolescent speakers of Brazilian Portuguese with typical development and normal hearing, aged between 8 and 16 years, in order to establish normative data of speech ABR response. This normative data can be used as a reference for speech ABR responses and also to enable the diagnosis in individuals with different pathologies. The analyze for absolute latency of speech sounds, more specifically the syllable/da/, for speech-ABR in children and adolescent speakers of Brazilian Portuguese with typical development were: right ear - wave V (6,43-6,57), wave A (7,35-7,57), wave C (18,19-18,46), wave D (21,99-22,42), wave E (30,73-31,05), wave F (39,19-39,55) and wave O (47,75-48,24) and left ear - wave V (6,44-6,57), wave A (7,36-7,59), wave C (18,26-18,55), wave D (22,22 -22,50), wave E (30,58-30,97), wave F (39,05-39,35) and wave O (47,78-48,13). For the amplitude values (μv), the responses were within the following ranges: right ear - wave V (0,10-0,14), wave A (0,19-0,25), wave C (0,08-0,13), wave D (0,11-0,17), wave E (0,17-0,42), wave F (0,14-0,33) and wave O (0,11-0,31) and left ear - wave V (0,09-0,13), wave A (0,08-0,23), wave C (0,08-0,14), wave D (0,10-0,15), wave E (0,20-0,26), wave F (0,16-0,22) and wave O (0,12-0,20). For the values of complex VA (slope: μv/ms and area μv x ms) the follow values obtained were: right ear - slope (0,32-0,42) and area (0,29-0,38) and left ear - slope (0,30-0,39) and area (0,27-0,35).
Collapse
Affiliation(s)
- Milaine Dominici Sanfins
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
| | - Leticia Reis Borges
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Thalita Ubiali
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Caroline Donadon
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Thais Antonelli Diniz Hein
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | | | - Maria Francisca Colella-Santos
- Child and Adolescent Heath Program, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| |
Collapse
|
50
|
Sturza J, Silver MK, Xu L, Li M, Mai X, Xia Y, Shao J, Lozoff B, Meeker J. Prenatal exposure to multiple pesticides is associated with auditory brainstem response at 9months in a cohort study of Chinese infants. ENVIRONMENT INTERNATIONAL 2016; 92-93:478-485. [PMID: 27166702 PMCID: PMC4902769 DOI: 10.1016/j.envint.2016.04.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/13/2016] [Accepted: 04/22/2016] [Indexed: 05/29/2023]
Abstract
BACKGROUND Pesticides are associated with poorer neurodevelopmental outcomes, but little is known about the effects on sensory functioning. METHODS Auditory brainstem response (ABR) and pesticide data were available for 27 healthy, full-term 9-month-old infants participating in a larger study of early iron deficiency and neurodevelopment. Cord blood was analyzed by gas chromatography-mass spectrometry for levels of 20 common pesticides. The ABR forward-masking condition consisted of a click stimulus (masker) delivered via ear canal transducers followed by an identical stimulus delayed by 8, 16, or 64 milliseconds (ms). ABR peak latencies were evaluated as a function of masker-stimulus time interval. Shorter wave latencies reflect faster neural conduction, more mature auditory pathways, and greater degree of myelination. Linear regression models were used to evaluate associations between total number of pesticides detected and ABR outcomes. We considered an additive or synergistic effect of poor iron status by stratifying our analysis by newborn ferritin (based on median split). RESULTS Infants in the sample were highly exposed to pesticides; a mean of 4.1 pesticides were detected (range 0-9). ABR Wave V latency and central conduction time (CCT) were associated with the number of pesticides detected in cord blood for the 64ms and non-masker conditions. A similar pattern seen for CCT from the 8ms and 16ms conditions, although statistical significance was not reached. Increased pesticide exposure was associated with longer latency. The relation between number of pesticides detected in cord blood and CCT depended on the infant's cord blood ferritin level. Specifically, the relation was present in the lower cord blood ferritin group but not the higher cord blood ferritin group. CONCLUSIONS ABR processing was slower in infants with greater prenatal pesticide exposure, indicating impaired neuromaturation. Infants with lower cord blood ferritin appeared to be more sensitive to the effects of prenatal pesticide exposure on ABR latency delay, suggesting an additive or multiplicative effect.
Collapse
Affiliation(s)
- Julie Sturza
- Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, USA.
| | - Monica K Silver
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
| | - Lin Xu
- Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, China.
| | - Mingyan Li
- Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, China.
| | - Xiaoqin Mai
- Department of Psychology, Renmin University of China, Beijing, China.
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Jie Shao
- Department of Child Health Care, Children's Hospital Zhejiang University School of Medicine, Zhejiang, China.
| | - Betsy Lozoff
- Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, USA.
| | - John Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
| |
Collapse
|