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Aldag N, Nogueira W. Psychoacoustic and electroencephalographic responses to changes in amplitude modulation depth and frequency in relation to speech recognition in cochlear implantees. Sci Rep 2024; 14:8181. [PMID: 38589483 PMCID: PMC11002021 DOI: 10.1038/s41598-024-58225-1] [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] [Received: 04/28/2023] [Accepted: 03/26/2024] [Indexed: 04/10/2024] Open
Abstract
Temporal envelope modulations (TEMs) are one of the most important features that cochlear implant (CI) users rely on to understand speech. Electroencephalographic assessment of TEM encoding could help clinicians to predict speech recognition more objectively, even in patients unable to provide active feedback. The acoustic change complex (ACC) and the auditory steady-state response (ASSR) evoked by low-frequency amplitude-modulated pulse trains can be used to assess TEM encoding with electrical stimulation of individual CI electrodes. In this study, we focused on amplitude modulation detection (AMD) and amplitude modulation frequency discrimination (AMFD) with stimulation of a basal versus an apical electrode. In twelve adult CI users, we (a) assessed behavioral AMFD thresholds and (b) recorded cortical auditory evoked potentials (CAEPs), AMD-ACC, AMFD-ACC, and ASSR in a combined 3-stimulus paradigm. We found that the electrophysiological responses were significantly higher for apical than for basal stimulation. Peak amplitudes of AMFD-ACC were small and (therefore) did not correlate with speech-in-noise recognition. We found significant correlations between speech-in-noise recognition and (a) behavioral AMFD thresholds and (b) AMD-ACC peak amplitudes. AMD and AMFD hold potential to develop a clinically applicable tool for assessing TEM encoding to predict speech recognition in CI users.
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Affiliation(s)
- Nina Aldag
- Department of Otolaryngology, Hannover Medical School and Cluster of Excellence 'Hearing4all', Hanover, Germany
| | - Waldo Nogueira
- Department of Otolaryngology, Hannover Medical School and Cluster of Excellence 'Hearing4all', Hanover, Germany.
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2
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Schwartz S, Wang L, Uribe S, Shinn-Cunningham B, Tager-Flusberg H. Auditory evoked potentials in adolescents with autism: An investigation of brain development, intellectual impairment, and neural encoding. Autism Res 2023; 16:1859-1876. [PMID: 37735966 PMCID: PMC10676753 DOI: 10.1002/aur.3003] [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] [Received: 02/07/2023] [Accepted: 07/21/2023] [Indexed: 09/23/2023]
Abstract
Limited research has evaluated neural encoding of sounds from a developmental perspective in individuals with autism (ASD), especially among those with intellectual disability. We compared auditory evoked potentials (AEPs) in autistic adolescents with a wide range of intellectual abilities (n = 40, NVIQ 30-160) to both age-matched cognitively able neurotypical adolescent controls (NT-A, n = 37) and younger neurotypical children (NT-C, n = 27) to assess potential developmental delays. In addition to a classic measure of peak amplitude, we calculated a continuous measure of intra-class correlation (ICC) between each adolescent participant's AEP and the age-normative, average AEP waveforms calculated from NT-C and NT-A to study differences in signal morphology. We found that peak amplitudes of neural responses were significantly smaller in autistic adolescents compared to NT-A. We also found that the AEP morphology of autistic adolescents looked more like NT-A peers than NT-C but was still significantly different from NT-A AEP waveforms. Results suggest that AEPs of autistic adolescents present differently from NTs, regardless of age, and differences cannot be accounted for by developmental delay. Nonverbal intelligence significantly predicted how closely each adolescent's AEP resembled the age-normed waveform. These results support an evolving theory that the degree of disruption in early neural responses to low-level inputs is reflected in the severity of intellectual impairments in autism.
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Affiliation(s)
- Sophie Schwartz
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
| | - Le Wang
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, USA
| | - Sofia Uribe
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
- Department of Psychology, Southern Methodist University, Dallas, TX, USA
| | | | - Helen Tager-Flusberg
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
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Charlebois-Poirier AR, Lalancette E, Agbogba K, Fauteux AA, Knoth IS, Lippé S. Working memory and processing speed abilities are related to habituation and change detection in school-aged children: An ERP study. Neuropsychologia 2023; 187:108616. [PMID: 37339690 DOI: 10.1016/j.neuropsychologia.2023.108616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/24/2023] [Accepted: 06/08/2023] [Indexed: 06/22/2023]
Abstract
High cognitive performance is related to efficient brain processing while accomplishing complex cognitive tasks. This efficiency is observed through a rapid engagement of the brain regions and the cognitive processes required for task accomplishment. However, it is unclear if this efficiency is also present in basic sensory processes such as habituation and change detection. We recorded EEG with 85 healthy children (51 males) aged between 4 and 13 years old, while they listened to an auditory oddball paradigm. Cognitive functioning was evaluated using the Weschler Intelligence Scales for Children Fifth Edition and the Weschler Preschool & Primary School for Intelligence Fourth Edition. Auditory evoked potentials (AEPs) analyses and repeated measure analysis of covariance as well as regression models were performed. The analysis revealed that P1 and N1 repetition effects were observed across levels of cognitive functioning. Further, working memory abilities were related to repetition suppression on the auditory P2 component amplitude, while faster processing speed was related to repetition enhancement on the N2 component amplitude. Also, Late Discriminative Negativity (LDN) amplitude, a neural correlate of change detection, increased with working memory abilities. Our results confirm that efficient repetition suppression (i.e. greater reduction in amplitudes with greater levels of cognitive functioning) and more sensitive change detection (greater amplitude changes of the LDN) are related to the level of cognitive functioning in healthy children. More specifically, working memory and processing speed abilities are the cognitive domains related to efficient sensory habituation and change detection.
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Affiliation(s)
- A-R Charlebois-Poirier
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada; Department of Psychology, Université de Montréal Montréal, QC, Canada.
| | - E Lalancette
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada; Department of Psychology, Université de Montréal Montréal, QC, Canada
| | - K Agbogba
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada
| | - A-A Fauteux
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada; Department of Psychology, Université de Montréal Montréal, QC, Canada
| | - I S Knoth
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada
| | - S Lippé
- Research Center, Sainte-Justine Hospital, Université de Montréal, Montréal, QC, Canada; Department of Psychology, Université de Montréal Montréal, QC, Canada.
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4
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Alatorre-Cruz GC, Andres A, Gu Y, Downs H, Hagood D, Sorensen ST, Williams DK, Larson-Prior LJ. Impact of feeding habits on the development of language-specific processing of phonemes in brain: An event-related potentials study. Front Nutr 2023; 10:1032413. [PMID: 36875846 PMCID: PMC9982124 DOI: 10.3389/fnut.2023.1032413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/27/2023] [Indexed: 02/19/2023] Open
Abstract
Introduction Infancy is a stage characterized by multiple brain and cognitive changes. In a short time, infants must consolidate a new brain network and develop two important properties for speech comprehension: phonemic normalization and categorical perception. Recent studies have described diet as an essential factor in normal language development, reporting that breastfed infants show an earlier brain maturity and thus a faster cognitive development. Few studies have described a long-term effect of diet on phonological perception. Methods To explore that effect, we compared the event-related potentials (ERPs) collected during an oddball paradigm (frequent /pa/80%, deviant/ba/20%) of infants fed with breast milk (BF), cow-milk-based formula (MF), and soy-based formula (SF), which were assessed at 3, 6, 9, 12, and 24 months of age [Mean across all age groups: 127 BF infants, Mean (M) 39.6 gestation weeks; 121 MF infants, M = 39.16 gestation weeks; 116 SF infants, M = 39.16 gestation weeks]. Results Behavioral differences between dietary groups in acoustic comprehension were observed at 24-months of age. The BF group displayed greater scores than the MF and SF groups. In phonological discrimination task, the ERPs analyses showed that SF group had an electrophysiological pattern associated with difficulties in phonological-stimulus awareness [mismatch negativity (MMN)-2 latency in frontal left regions of interest (ROI) and longer MMN-2 latency in temporal right ROI] and less brain maturity than BF and MF groups. The SF group displayed more right-lateralized brain recruitment in phonological processing at 12-months old. Discussion We conclude that using soy-based formula in a prolonged and frequent manner might trigger a language development different from that observed in the BF or MF groups. The soy-based formula's composition might affect frontal left-brain area development, which is a nodal brain region in phonological-stimuli awareness.
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Affiliation(s)
- Graciela C Alatorre-Cruz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Aline Andres
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Yuyuan Gu
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Heather Downs
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Darcy Hagood
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Seth T Sorensen
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - David Keith Williams
- Arkansas Children's Nutrition Center, Little Rock, AR, United States.,Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Linda J Larson-Prior
- Arkansas Children's Nutrition Center, Little Rock, AR, United States.,Departments of Neurobiology and Developmental Sciences, Psychiatry, Neurology, Pediatrics and Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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Hussain RO, Kumar P, Singh NK. Subcortical and Cortical Electrophysiological Measures in Children With Speech-in-Noise Deficits Associated With Auditory Processing Disorders. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2022; 65:4454-4468. [PMID: 36279585 DOI: 10.1044/2022_jslhr-22-00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
PURPOSE The aim of this study was to analyze the subcortical and cortical auditory evoked potentials for speech stimuli in children with speech-in-noise (SIN) deficits associated with auditory processing disorder (APD) without any reading or language deficits. METHOD The study included 20 children in the age range of 9-13 years. Ten children were recruited to the APD group; they had below-normal scores on the speech-perception-in-noise test and were diagnosed as having APD. The remaining 10 were typically developing (TD) children and were recruited to the TD group. Speech-evoked subcortical (brainstem) and cortical (auditory late latency) responses were recorded and compared across both groups. RESULTS The results showed a statistically significant reduction in the amplitudes of the subcortical potentials (both for stimulus in quiet and in noise) and the magnitudes of the spectral components (fundamental frequency and the second formant) in children with SIN deficits in the APD group compared to the TD group. In addition, the APD group displayed enhanced amplitudes of the cortical potentials compared to the TD group. CONCLUSION Children with SIN deficits associated with APD exhibited impaired coding/processing of the auditory information at the level of the brainstem and the auditory cortex. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.21357735.
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Affiliation(s)
| | - Prawin Kumar
- Department of Audiology, All India Institute of Speech and Hearing, Mysore
| | - Niraj Kumar Singh
- Department of Audiology, All India Institute of Speech and Hearing, Mysore
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Macaskill M, Omidvar S, Koravand A. Long Latency Auditory Evoked Responses in the Identification of Children With Central Auditory Processing Disorders: A Scoping Review. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2022; 65:3595-3619. [PMID: 36037462 DOI: 10.1044/2022_jslhr-21-00544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE The long latency auditory evoked responses (LLAERs), originating in the auditory cortex, are often considered a biomarker for maturity in the central auditory system and may therefore be useful in the evaluation of children with central auditory processing disorder (CAPD). However, the characteristics of the LLAERs elicited in this population have not been widely described, and clinical applications remain unclear. The goal of this scoping review was to investigate if LLAERs can be used to identify children with CAPD. METHOD A systematic search strategy was used to identify studies that analyzed the latencies and amplitudes of P1, N1, P2, and N2 waveforms of the LLAERs. The online databases, including Embase, Web of Science, MEDLINE, PubMed, ProQuest, and CINAHL, as well as the gray literature were searched for papers published in English and French between January 1980 and May 2021. RESULTS Seventeen papers met the eligibility criteria and were included in the study. Four papers had pre- and posttraining study designs, and the remaining studies were cross-sectional. Several studies reported significant differences in LLAERs between children with CAPD and their normal-hearing peers, and the results tended toward longer latencies and smaller amplitudes regardless of LLAER waves considered. N1 and/or N2 results were most likely to reveal significant differences between children with CAPD and normal-hearing controls and could potentially be considered a biomarker for CAPD. CONCLUSIONS It seems that LLAER assessments, especially waves N1 and N2, might assist in better identification of CAPD children. However, considering heterogeneity in the methodology among the included studies, the results should be interpreted with caution. Well-designed studies on children with confirmed CAPD using standard diagnostic and assessment protocols are suggested.
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Affiliation(s)
- Melissa Macaskill
- Audiology and Speech-Language Pathology Program, School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
| | - Shaghayegh Omidvar
- Audiology and Speech-Language Pathology Program, School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
| | - Amineh Koravand
- Audiology and Speech-Language Pathology Program, School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
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Coughler C, Quinn de Launay KL, Purcell DW, Oram Cardy J, Beal DS. Pediatric Responses to Fundamental and Formant Frequency Altered Auditory Feedback: A Scoping Review. Front Hum Neurosci 2022; 16:858863. [PMID: 35664350 PMCID: PMC9157279 DOI: 10.3389/fnhum.2022.858863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose The ability to hear ourselves speak has been shown to play an important role in the development and maintenance of fluent and coherent speech. Despite this, little is known about the developing speech motor control system throughout childhood, in particular if and how vocal and articulatory control may differ throughout development. A scoping review was undertaken to identify and describe the full range of studies investigating responses to frequency altered auditory feedback in pediatric populations and their contributions to our understanding of the development of auditory feedback control and sensorimotor learning in childhood and adolescence. Method Relevant studies were identified through a comprehensive search strategy of six academic databases for studies that included (a) real-time perturbation of frequency in auditory input, (b) an analysis of immediate effects on speech, and (c) participants aged 18 years or younger. Results Twenty-three articles met inclusion criteria. Across studies, there was a wide variety of designs, outcomes and measures used. Manipulations included fundamental frequency (9 studies), formant frequency (12), frequency centroid of fricatives (1), and both fundamental and formant frequencies (1). Study designs included contrasts across childhood, between children and adults, and between typical, pediatric clinical and adult populations. Measures primarily explored acoustic properties of speech responses (latency, magnitude, and variability). Some studies additionally examined the association of these acoustic responses with clinical measures (e.g., stuttering severity and reading ability), and neural measures using electrophysiology and magnetic resonance imaging. Conclusion Findings indicated that children above 4 years generally compensated in the opposite direction of the manipulation, however, in several cases not as effectively as adults. Overall, results varied greatly due to the broad range of manipulations and designs used, making generalization challenging. Differences found between age groups in the features of the compensatory vocal responses, latency of responses, vocal variability and perceptual abilities, suggest that maturational changes may be occurring in the speech motor control system, affecting the extent to which auditory feedback is used to modify internal sensorimotor representations. Varied findings suggest vocal control develops prior to articulatory control. Future studies with multiple outcome measures, manipulations, and more expansive age ranges are needed to elucidate findings.
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Affiliation(s)
- Caitlin Coughler
- Graduate Program in Health and Rehabilitation Sciences, Faculty of Health Sciences, The University of Western Ontario, London, ON, Canada
- *Correspondence: Caitlin Coughler,
| | - Keelia L. Quinn de Launay
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
- Rehabilitation Sciences Institute, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - David W. Purcell
- School of Communication Sciences and Disorders, Faculty of Health Sciences, The University of Western Ontario, London, ON, Canada
- National Centre for Audiology, Faculty of Health Sciences, The University of Western Ontario, London, ON, Canada
| | - Janis Oram Cardy
- School of Communication Sciences and Disorders, Faculty of Health Sciences, The University of Western Ontario, London, ON, Canada
- National Centre for Audiology, Faculty of Health Sciences, The University of Western Ontario, London, ON, Canada
| | - Deryk S. Beal
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
- Rehabilitation Sciences Institute, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Department of Speech-Language Pathology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Cancer A, Antonietti A. Music-Based and Auditory-Based Interventions for Reading Difficulties: A Literature Review. Heliyon 2022; 8:e09293. [PMID: 35497042 PMCID: PMC9048091 DOI: 10.1016/j.heliyon.2022.e09293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/26/2021] [Accepted: 04/13/2022] [Indexed: 01/08/2023] Open
Abstract
Remediation of reading difficulties through music and auditory-based interventions in children with impairments in reading (such as developmental dyslexia) has been suggested in light of the putative neural and cognitive overlaps between the music and language domains. Several studies had explored the effect of music training on reading development, showing mixed results. However, to date, the meta-analyses on this topic did not differentiate the studies on typical children from those on children with reading difficulties. To draw a clear picture of the remedial effects of music-based and auditory-based interventions, the present review of the literature included studies on struggling readers only. Eighteen studies have been categorized according to the type of the main training activity – either specific auditory training or more broad music training – and the combination with reading exercises. The reviewed studies showed that musical and auditory interventions yielded a positive, but not consistent, effect on reading. Nevertheless, significantly larger improvements of phonological abilities, relative to the control conditions, were overall reported. These findings support the hypothesis of a transfer effect of musical and auditory training on phonological and literacy skills in children with reading difficulties.
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Pitchaimuthu A, Ananth E, Bhat JS, Haralakatta Shivananjappa S. Comparison of temporal fine structure sensitivity and concurrent vowel perception between children with and without reading disability. F1000Res 2021; 9:1271. [PMID: 35035902 PMCID: PMC8729192 DOI: 10.12688/f1000research.21544.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/26/2021] [Indexed: 11/20/2022] Open
Abstract
Background: Children with reading disabilities (RD) exhibit difficulty in perceiving speech in background noise due to poor auditory stream segregation. There is a dearth of literature on measures of temporal fine structure sensitivity (TFS) and concurrent vowel perception abilities to assess auditory stream segregation in children with reading disabilities. Hence the present study compared temporal fine structure sensitivity (TFS) and concurrent vowel perception abilities between children with and without reading deficits. Method: The present research consisted of a total number of 30 participants, 15 children with reading disabilities (RD) and fifteen typically developing (TD) children within the age range of 7-14 years and were designated as Group 1 and Group 2 respectively. Both groups were matched for age, grade, and classroom curricular instructions. The groups were evaluated for TFS and concurrent vowel perception abilities and the performance was compared using independent ‘t’ test and repeated measure ANOVA respectively. Results: Results revealed that the children with RD performed significantly (p < 0.001) poorer than TD children on both TFS and concurrent vowel identification task. On concurrent vowel identification tasks, there was no significant interaction found between reading ability and F0 difference suggesting that the trend was similar in both the groups. Conclusion: The study concludes that the children with RD show poor temporal fine structure sensitivity and concurrent vowel identification scores compared to age and grade matched TD children owing to poor auditory stream segregation in children with RD.
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Affiliation(s)
- Arivudainambi Pitchaimuthu
- Department of Audiology & Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 575001, India
| | - Eshwari Ananth
- Department of Audiology & Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 575001, India
| | - Jayashree S Bhat
- Department of Audiology & Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 575001, India
| | - Somashekara Haralakatta Shivananjappa
- Department of Audiology & Speech Language Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 575001, India
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Magimairaj BM, Nagaraj NK, Champlin CA, Thibodeau LK, Loeb DF, Gillam RB. Speech Perception in Noise Predicts Oral Narrative Comprehension in Children With Developmental Language Disorder. Front Psychol 2021; 12:735026. [PMID: 34744907 PMCID: PMC8566731 DOI: 10.3389/fpsyg.2021.735026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/17/2021] [Indexed: 11/13/2022] Open
Abstract
We examined the relative contribution of auditory processing abilities (tone perception and speech perception in noise) after controlling for short-term memory capacity and vocabulary, to narrative language comprehension in children with developmental language disorder. Two hundred and sixteen children with developmental language disorder, ages 6 to 9 years (Mean = 7; 6), were administered multiple measures. The dependent variable was children's score on the narrative comprehension scale of the Test of Narrative Language. Predictors were auditory processing abilities, phonological short-term memory capacity, and language (vocabulary) factors, with age, speech perception in quiet, and non-verbal IQ as covariates. Results showed that narrative comprehension was positively correlated with the majority of the predictors. Regression analysis suggested that speech perception in noise contributed uniquely to narrative comprehension in children with developmental language disorder, over and above all other predictors; however, tone perception tasks failed to explain unique variance. The relative importance of speech perception in noise over tone-perception measures for language comprehension reinforces the need for the assessment and management of listening in noise deficits and makes a compelling case for the functional implications of complex listening situations for children with developmental language disorder.
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Affiliation(s)
- Beula M Magimairaj
- Communicative Disorders and Deaf Education, Emma Eccles Jones Early Childhood Education and Research Center, Utah State University, Logan, UT, United States
| | - Naveen K Nagaraj
- Communicative Disorders and Deaf Education, Emma Eccles Jones Early Childhood Education and Research Center, Utah State University, Logan, UT, United States
| | - Craig A Champlin
- Speech, Language, and Hearing Sciences, The University of Texas at Austin, Austin, TX, United States
| | - Linda K Thibodeau
- Callier Center for Communication Disorders, The University of Texas at Dallas, Dallas, TX, United States
| | - Diane F Loeb
- Communication Sciences and Disorders, Baylor University, Waco, TX, United States
| | - Ronald B Gillam
- Communicative Disorders and Deaf Education, Emma Eccles Jones Early Childhood Education and Research Center, Utah State University, Logan, UT, United States
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Multiple Cases of Auditory Neuropathy Illuminate the Importance of Subcortical Neural Synchrony for Speech-in-noise Recognition and the Frequency-following Response. Ear Hear 2021; 43:605-619. [PMID: 34619687 DOI: 10.1097/aud.0000000000001122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The role of subcortical synchrony in speech-in-noise (SIN) recognition and the frequency-following response (FFR) was examined in multiple listeners with auditory neuropathy. Although an absent FFR has been documented in one listener with idiopathic neuropathy who has severe difficulty recognizing SIN, several etiologies cause the neuropathy phenotype. Consequently, it is necessary to replicate absent FFRs and concomitant SIN difficulties in patients with multiple sources and clinical presentations of neuropathy to elucidate fully the importance of subcortical neural synchrony for the FFR and SIN recognition. DESIGN Case series. Three children with auditory neuropathy (two males with neuropathy attributed to hyperbilirubinemia, one female with a rare missense mutation in the OPA1 gene) were compared to age-matched controls with normal hearing (52 for electrophysiology and 48 for speech recognition testing). Tests included standard audiological evaluations, FFRs, and sentence recognition in noise. The three children with neuropathy had a range of clinical presentations, including moderate sensorineural hearing loss, use of a cochlear implant, and a rapid progressive hearing loss. RESULTS Children with neuropathy generally had good speech recognition in quiet but substantial difficulties in noise. These SIN difficulties were somewhat mitigated by a clear speaking style and presenting words in a high semantic context. In the children with neuropathy, FFRs were absent from all tested stimuli. In contrast, age-matched controls had reliable FFRs. CONCLUSION Subcortical synchrony is subject to multiple forms of disruption but results in a consistent phenotype of an absent FFR and substantial difficulties recognizing SIN. These results support the hypothesis that subcortical synchrony is necessary for the FFR. Thus, in healthy listeners, the FFR may reflect subcortical neural processes important for SIN recognition.
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12
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Kumar P, Singh NK, Hussain RO. Efficacy of Computer-Based Noise Desensitization Training in Children With Speech-in-Noise Deficits. Am J Audiol 2021; 30:325-340. [PMID: 33974448 DOI: 10.1044/2021_aja-20-00153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Purpose Auditory training is known to improve the speech-perception-in-noise (SPIN) skills in children with auditory processing disorders (APDs); however, conventional non-computer-based trainings are dreary and nonmotivating. This study intended to develop a computer-based noise desensitization training module in Indian English and test the efficacy of the same in children with APD having SPIN deficits. There are no such modules available at present to be used in Indian children. Method The module incorporated words-in-noise training, with monosyllables and trisyllables as target words in the presence of speech-shaped noise as well as multitalker babble at different signal-to-noise ratios ranging from +20 to -4 dB SNR. The study included 20 children with SPIN deficits diagnosed with APD and who were recruited randomly to the experimental group who received the training (n = 10; M age = 11.1 years) and to the control group who did not receive any training (n = 10; M age = 11.4 years). The outcome measures included behavioral measures and electrophysiological measures (auditory long latency responses for speech in quiet and noise). Results Compared to children in the control group, children in the experimental group exhibited improvements in the SPIN scores as well as temporal processing measures after training. Dichotic consonant-vowel tests and auditory memory and sequencing tests did not yield significant improvement post training. Also, auditory long latency responses in quiet and noise revealed significant reduction in the amplitudes after training. No significant difference was noted in the latencies of auditory long latency responses post training. Control group participants did not show any significant difference in any of the measures between the initial and follow-up evaluations. Conclusions The developed training module was successful in fetching improvements in behavioral and electrophysiological measures. It would be a great addition to the evidence-based rehabilitation support inventory for children with SPIN deficits in India. Supplemental Material https://doi.org/10.23641/asha.14551041.
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Affiliation(s)
- Prawin Kumar
- Department of Audiology, All India Institute of Speech and Hearing, Mysore
| | - Niraj Kumar Singh
- Department of Audiology, All India Institute of Speech and Hearing, Mysore
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Yoshimura Y, Hasegawa C, Ikeda T, Saito DN, Hiraishi H, Takahashi T, Kumazaki H, Kikuchi M. The maturation of the P1m component in response to voice from infancy to 3 years of age: A longitudinal study in young children. Brain Behav 2020; 10:e01706. [PMID: 32573987 PMCID: PMC7428512 DOI: 10.1002/brb3.1706] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/06/2020] [Accepted: 05/17/2020] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION In the early development of human infants and toddlers, remarkable changes in brain cortical function for auditory processing have been reported. Knowing the maturational trajectory of auditory cortex responses to human voice in typically developing young children is crucial for identifying voice processing abnormalities in children at risk for neurodevelopmental disorders and language impairment. An early prominent positive component in the cerebral auditory response in newborns has been reported in previous electroencephalography and magnetoencephalography (MEG) studies. However, it is not clear whether this prominent component in infants less than 1 year of age corresponds to the auditory P1m component that has been reported in young children over 2 years of age. METHODS To test the hypothesis that the early prominent positive component in infants aged 0 years is an immature manifestation of P1m that we previously reported in children over 2 years of age, we performed a longitudinal MEG study that focused on this early component and examined the maturational changes over three years starting from age 0. Five infants participated in this 3-year longitudinal study. RESULTS This research revealed that the early prominent component in infants aged 3 month corresponded to the auditory P1m component in young children over 2 years old, which we had previously reported to be related to language development and/or autism spectrum disorders. CONCLUSION Our data revealed the development of the auditory-evoked field in the left and right hemispheres from 0- to 3-year-old children. These results contribute to the elucidation of the development of brain functions in infants.
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Affiliation(s)
- Yuko Yoshimura
- Institute of Human and Social Sciences, Kanazawa University, Kanazawa, Japan.,Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Chiaki Hasegawa
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Takashi Ikeda
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Daisuke N Saito
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Hirotoshi Hiraishi
- Institute for Medical Photonics research, Hamamatsu University school of medicine, Hamamatsu, Japan
| | | | - Hirokazu Kumazaki
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Mitsuru Kikuchi
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan.,Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Ishikawa, Japan
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Cavalcanti HG, da Silva Nunes AD, da Cunha BKS, de Freitas Alvarenga K, Balen SA, Pereira A. Early exposure to environment sounds and the development of cortical auditory evoked potentials of preterm infants during the first 3 months of life. BMC Res Notes 2020; 13:303. [PMID: 32586405 PMCID: PMC7318486 DOI: 10.1186/s13104-020-05129-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 06/04/2020] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE Preterm infants are exposed earlier than their term counterparts to unattenuated sounds from the external environment during the sensitive period of the organization of the auditory cortical circuitry. In the current study, we investigate the effect of preterm birth on the course of development of auditory cortical areas by evaluating how gestational age (GA) correlates with the latency of the P1 component of the cortical auditory evoked potential (CAEP) of two experimental groups measured at 1 or 3 months of age. RESULTS Our sample consisted of 23 infants delivered at GA ranging from 31.28 to 41.42 weeks and separated into two groups evaluated transversally at 1 or 3 months of corrected age (CA). In the group evaluated at 1-month CA, the latency of the component P1 was similar in both terms and infants classified as late-preterm (GA > 32 weeks). However, in the group evaluated at 3 months CA, P1 latency was significantly smaller in preterms. These preliminary results suggest an acceleration of the development of auditory cortical pathways in preterms, probably due to their early exposure to socially relevant auditory stimuli from the external environment.
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Affiliation(s)
- Hannalice Gottschalck Cavalcanti
- Department of Speech and Language Pathology, Federal University of Paraíba, Cidade Universitária, S/N - Conj. Pres. Castelo Branco III, João Pessoa, PB, 58051-900, Brazil
| | - Aryelly Dayane da Silva Nunes
- Speech and Language Pathology Graduate Program, Federal University of Rio Grande do Norte, Rua Gen. Gustavo Cordeiro de Farias, S/N, Natal, RN, 59012-570, Brazil
| | - Brenda Karla Silva da Cunha
- Speech and Language Pathology Graduate Program, Federal University of Rio Grande do Norte, Rua Gen. Gustavo Cordeiro de Farias, S/N, Natal, RN, 59012-570, Brazil
| | - Kátia de Freitas Alvarenga
- Department of Speech and Language Pathology, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, SP, 17012-901, Brazil
| | - Sheila Andreoli Balen
- Department of Speech and Language Pathology, Federal University of Rio Grande do Norte, Rua Gen. Gustavo Cordeiro de Farias, S/N, Natal, RN, 59012-570, Brazil
| | - Antonio Pereira
- Department of Electrical and Biomedical Engineering, Institute of Technology, Federal University of Pará, Rua Augusto Correa, S/N, Belém, PA, 66075-110, Brazil.
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15
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Mukari SZMS, Umat C, Chan SC, Ali A, Maamor N, Zakaria MN. Effects of Age and Type of Stimulus on the Cortical Auditory Evoked Potential in Healthy Malaysian Children. J Audiol Otol 2020; 24:35-39. [PMID: 31914504 PMCID: PMC6949480 DOI: 10.7874/jao.2019.00262] [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] [Received: 07/01/2019] [Accepted: 12/01/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The cortical auditory evoked potential (CAEP) is a useful objective test for diagnosing hearing loss and auditory disorders. Prior to its clinical applications in the pediatric population, the possible influences of fundamental variables on the CAEP should be studied. The aim of the present study was to determine the effects of age and type of stimulus on the CAEP waveforms. SUBJECTS AND METHODS Thirty-five healthy Malaysian children aged 4 to 12 years participated in this repeated-measures study. The CAEP waveforms were recorded from each child using a 1 kHz tone burst and the speech syllable /ba/. Latencies and amplitudes of P1, N1, and P2 peaks were analyzed accordingly. RESULTS Significant negative correlations were found between age and speech-evoked CAEP latency for each peak (p< 0.05). However, no significant correlations were found between age and tone-evoked CAEP amplitudes and latencies (p>0.05). The speech syllable /ba/ produced a higher mean P1 amplitude than the 1 kHz tone burst (p=0.001). CONCLUSIONS The CAEP latencies recorded with the speech syllable became shorter with age. While both tone-burst and speech stimuli were appropriate for recording the CAEP, significantly bigger amplitudes were found in speech-evoked CAEP. The preliminary normative CAEP data provided in the present study may be beneficial for clinical and research applications in Malaysian children.
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Affiliation(s)
- Siti Zamratol-Mai Sarah Mukari
- Institute of Ear, Hearing and Speech, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Cila Umat
- Department of Audiology and Speech Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Soon Chien Chan
- Department of Audiology and Speech Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Akmaliza Ali
- Department of Audiology and Speech Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Nashrah Maamor
- Department of Audiology and Speech Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Mohd Normani Zakaria
- Audiology and Speech Pathology Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Address for correspondence Mohd Normani Zakaria, PhD Audiology and Speech Pathology Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia Tel +6097677691 Fax +6097677515 E-mail
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16
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Relationship between aided cortical auditory evoked responses and aided behavioral thresholds. Int J Pediatr Otorhinolaryngol 2019; 125:98-102. [PMID: 31276893 DOI: 10.1016/j.ijporl.2019.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The present study aimed to determine the relationship between aided cortical auditory evoked potentials and aided behavioral thresholds. Secondary aims of the study were to investigate the relationship between age and Cortical Auditory Evoked Potentials latencies, and to analyze the relationship between the /m/, /g/ and /t/ stimuli. METHOD Therefore, 20 subjects (4-8 years old) who diagnosed with moderate to severe hearing loss were included in the study. Behavioral pure-tone audiometry was performed using supra-aural earphones. After verification of the settings of hearing aid settings, aided behavioral thresholds were determined in the free field. Aided CAEPs were recorded using the HEARLab system in a sound-treated room. The /m/, /g/, and /t/ speech stimuli were applied with durations of 30, 20, and 30 ms respectively. RESULTS A strong correlation was found between aided cortical auditory evoked responses at the level of 55 dB SPL and aided behavioral thresholds in the free field(r=0.86). We showed that the CAEP latencies were not correlated with the age (/m/ stimulus [r=-0.051; p=0.830], /g/ stimulus [r=-0.053; p=0.825], and /t/ stimulus [r=0.121; p=0,610]). The mean latency of the /m/ stimulus at 55 dB SPL intensity was longer than those of the /g/ and /t/ stimuli. CONCLUSION The results of the present study demonstrated that the use of the cortical auditory evoked potentials is clinically useful for measuring the hearing aid benefit. The CAEP can predict the aided behavioral thresholds in children with moderate hearing loss.
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White-Schwoch T, Anderson S, Krizman J, Nicol T, Kraus N. Case studies in neuroscience: subcortical origins of the frequency-following response. J Neurophysiol 2019; 122:844-848. [DOI: 10.1152/jn.00112.2019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The auditory frequency-following response (FFR) reflects synchronized and phase-locked activity along the auditory pathway in response to sound. Although FFRs were historically thought to reflect subcortical activity, recent evidence suggests an auditory cortex contribution as well. Here we present electrophysiological evidence for the FFR’s origins from two cases: a patient with bilateral auditory cortex lesions and a patient with auditory neuropathy, a condition of subcortical origin. The patient with auditory cortex lesions had robust and replicable FFRs, but no cortical responses. In contrast, the patient with auditory neuropathy had no FFR despite robust and replicable cortical responses. This double dissociation shows that subcortical synchrony is necessary and sufficient to generate an FFR. NEW & NOTEWORTHY The frequency-following response (FFR) reflects synchronized and phase-locked neural activity in response to sound. The authors present a dual case study, comparing FFRs and cortical potentials between a patient with auditory neuropathy (a condition of subcortical origin) and a patient with bilateral auditory cortex lesions. They show that subcortical synchrony is necessary and sufficient to generate an FFR.
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Affiliation(s)
- Travis White-Schwoch
- Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, Illinois
| | - Samira Anderson
- Department of Hearing and Speech Sciences, University of Maryland College Park, College Park, Maryland
| | - Jennifer Krizman
- Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, Illinois
| | - Trent Nicol
- Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, Illinois
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Department of Communication Sciences, Northwestern University, Evanston, Illinois
- Department of Neurobiology, Northwestern University, Evanston, Illinois
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18
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Parviainen T, Helenius P, Salmelin R. Children show hemispheric differences in the basic auditory response properties. Hum Brain Mapp 2019; 40:2699-2710. [PMID: 30779260 DOI: 10.1002/hbm.24553] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/31/2018] [Accepted: 01/23/2019] [Indexed: 11/09/2022] Open
Abstract
Auditory cortex in each hemisphere shows preference to sounds from the opposite hemifield in the auditory space. Besides this contralateral dominance, the auditory cortex shows functional and structural lateralization, presumably influencing the features of subsequent auditory processing. Children have been shown to differ from adults in the hemispheric balance of activation in higher-order auditory based tasks. We studied, first, whether the contralateral dominance can be detected in 7- to 8-year-old children and, second, whether the response properties of auditory cortex in children differ between hemispheres. Magnetoencephalography (MEG) responses to simple tones revealed adult-like contralateral preference that was, however, extended in time in children. Moreover, we found stronger emphasis towards mature response properties in the right than left hemisphere, pointing to faster maturation of the right-hemisphere auditory cortex. The activation strength of the child-typical prolonged response was significantly decreased with age, within the narrow age-range of the studied child population. Our results demonstrate that although the spatial sensitivity to the opposite hemifield has emerged by 7 years of age, the population-level neurophysiological response shows salient immature features, manifested particularly in the left hemisphere. The observed functional differences between hemispheres may influence higher-level processing stages, for example, in language function.
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Affiliation(s)
- Tiina Parviainen
- Centre for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland.,Aalto NeuroImaging, Aalto University, Espoo, Finland
| | - Päivi Helenius
- Division of Child Neurology, Helsinki University Hospital, Helsinki, Finland
| | - Riitta Salmelin
- Aalto NeuroImaging, Aalto University, Espoo, Finland.,Department of Neuroscience and Biomedical Engineering, Aalto University, Espoo, Finland
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19
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Lunardelo PP, Simões HDO, Zanchetta S. Differences and similarities in the long-latency auditory evoked potential recording of P1-N1 for different sound stimuli. REVISTA CEFAC 2019. [DOI: 10.1590/1982-0216/201921218618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Purpose: this study aimed at illustrating the similarities and differences in the recording of components P1 and N1 for verbal and non-verbal stimuli, in an adult sample population, for reference purposes. Methods: twenty-one adult, eutrophic individuals of both sexes were recruited for this study. The long-latency auditory evoked potential was detected by bilateral stimulation in both ears, using simultaneous recording, with non-verbal stimuli and the syllable /da/. Results: for non-verbal and speech stimuli, N1 was identified in 100.0% of the participants, whereas P1 was observed in 85.7% and 95.2% individuals for non-verbal and speech stimuli, respectively. Significant differences were observed for the P1 and N1 amplitudes between the ears (p <0.05); the P1 component, in the left ear, was higher than that in the right ear, whereas the N1 component was higher in the right one. Regarding the stimuli, the amplitude and latency values of N1 were higher for speech, whereas in P1, different results were obtained only in latency. Conclusion: the N1 component was the most frequently detected one. Differences in latency and amplitude for each stimuli occurred only for N1, which can be justified by its role in the process of speech discrimination.
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20
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Arnett AB, Hudac CM, DesChamps TD, Cairney BE, Gerdts J, Wallace AS, Bernier RA, Webb SJ. Auditory perception is associated with implicit language learning and receptive language ability in autism spectrum disorder. BRAIN AND LANGUAGE 2018; 187:1-8. [PMID: 30312833 PMCID: PMC7970711 DOI: 10.1016/j.bandl.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/30/2018] [Accepted: 09/25/2018] [Indexed: 06/01/2023]
Abstract
BACKGROUND Autism spectrum disorder (ASD) is associated with language impairment as well as atypical auditory sensory processing. The current study investigated associations among auditory perception, implicit language learning and receptive language ability in youth with ASD. METHODS We measured auditory event related potentials (ERP) during an artificial language statistical learning task in 76 youth with ASD and 27 neurotypical (NT) controls. Participants with ASD had a broad range of cognitive and language abilities. RESULTS NT youth showed evidence of implicit learning via attenuated P1 amplitude in the left hemisphere. In contrast, among youth with ASD, implicit learning elicited bilateral attenuation that was increasingly evident with greater receptive language skill. CONCLUSIONS Efficient early auditory perception reflects language learning and is a marker of language ability among youth with ASD. Atypical lateralization of word learning is evident in ASD across a broad range of receptive language abilities.
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Affiliation(s)
- Anne B Arnett
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States.
| | - Caitlin M Hudac
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States
| | | | - Brianna E Cairney
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States
| | - Jennifer Gerdts
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States
| | - Arianne S Wallace
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States
| | - Raphael A Bernier
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States
| | - Sara J Webb
- University of Washington, Department of Psychiatry & Behavioral Sciences, United States; Seattle Children's Hospital Research Institute, United States
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21
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White-Schwoch T, Nicol T, Warrier CM, Abrams DA, Kraus N. Individual Differences in Human Auditory Processing: Insights From Single-Trial Auditory Midbrain Activity in an Animal Model. Cereb Cortex 2018; 27:5095-5115. [PMID: 28334187 DOI: 10.1093/cercor/bhw293] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 08/29/2016] [Indexed: 11/13/2022] Open
Abstract
Auditory-evoked potentials are classically defined as the summations of synchronous firing along the auditory neuraxis. Converging evidence supports a model whereby timing jitter in neural coding compromises listening and causes variable scalp-recorded potentials. Yet the intrinsic noise of human scalp recordings precludes a full understanding of the biological origins of individual differences in listening skills. To delineate the mechanisms contributing to these phenomena, in vivo extracellular activity was recorded from inferior colliculus in guinea pigs to speech in quiet and noise. Here we show that trial-by-trial timing jitter is a mechanism contributing to auditory response variability. Identical variability patterns were observed in scalp recordings in human children, implicating jittered timing as a factor underlying reduced coding of dynamic speech features and speech in noise. Moreover, intertrial variability in human listeners is tied to language development. Together, these findings suggest that variable timing in inferior colliculus blurs the neural coding of speech in noise, and propose a consequence of this timing jitter for human behavior. These results hint both at the mechanisms underlying speech processing in general, and at what may go awry in individuals with listening difficulties.
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Affiliation(s)
- Travis White-Schwoch
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, IL, 60208, USA
| | - Trent Nicol
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, IL, 60208, USA
| | - Catherine M Warrier
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, IL, 60208, USA
| | - Daniel A Abrams
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, IL, 60208, USA.,Stanford Cognitive & Systems Neuroscience Laboratory, Stanford University, Palo Alto, CA, 94304, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory (www.brainvolts.northwestern.edu) & Department of Communication Sciences, Northwestern University, Evanston, IL, 60208, USA.,Department of Neurobiology & Physiology, Northwestern University, Evanston, IL, 60208, USA.,Department of Otolaryngology, Northwestern University, Chicago, IL, 60611, USA
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22
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Yu L, Wang S, Huang D, Wu X, Zhang Y. Role of inter-trial phase coherence in atypical auditory evoked potentials to speech and nonspeech stimuli in children with autism. Clin Neurophysiol 2018; 129:1374-1382. [PMID: 29729592 DOI: 10.1016/j.clinph.2018.04.599] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 03/22/2018] [Accepted: 04/09/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVE This autism study investigated how inter-trial phase coherence (ITPC) drives abnormalities in auditory evoked potential (AEP) responses for speech and nonspeech stimuli. METHODS Auditory P1-N2 responses and ITPCs in the theta band (4-7 Hz) for pure tones and words were assessed with EEG data from 15 school-age children with autism and 16 age-matched typically developing (TD) controls. RESULTS The autism group showed enhanced P1 and reduced N2 for both speech and nonspeech stimuli in comparison with the TD group. Group differences were also found with enhanced theta ITPC for P1 followed by ITPC reduction for N2 in the autism group. The ITPC values were significant predictors of P1 and N2 amplitudes in both groups. CONCLUSIONS Abnormal trial-to-trial phase synchrony plays an important role in AEP atypicalities in children with autism. ITPC-driven enhancement as well as attenuation in different AEP components may coexist, depending on the stage of information processing. SIGNIFICANCE It is necessary to examine the time course of auditory evoked potentials and the corresponding inter-trial coherence of neural oscillatory activities to better understand hyper- and hypo- sensitive responses in autism, which has important implications for sensory based treatment.
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Affiliation(s)
- Luodi Yu
- School of Psychology, South China Normal University, Guangzhou 510631, China; Department of Speech-Language-Hearing Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Suiping Wang
- School of Psychology, South China Normal University, Guangzhou 510631, China.
| | - Dan Huang
- Guangzhou Rehabilitation and Research Center for Children with Autism, Guangzhou Cana School, Guangzhou 510540, China
| | - Xueyuan Wu
- Guangzhou Rehabilitation and Research Center for Children with Autism, Guangzhou Cana School, Guangzhou 510540, China
| | - Yang Zhang
- Department of Speech-Language-Hearing Sciences, University of Minnesota, Minneapolis, MN 55455, USA; Center for Neurobehavioral Development, University of Minnesota, Minneapolis, MN 55455, USA.
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Woodruff Carr K, Fitzroy AB, Tierney A, White-Schwoch T, Kraus N. Incorporation of feedback during beat synchronization is an index of neural maturation and reading skills. BRAIN AND LANGUAGE 2017; 164:43-52. [PMID: 27701006 DOI: 10.1016/j.bandl.2016.09.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 07/29/2016] [Accepted: 09/11/2016] [Indexed: 06/06/2023]
Abstract
Speech communication involves integration and coordination of sensory perception and motor production, requiring precise temporal coupling. Beat synchronization, the coordination of movement with a pacing sound, can be used as an index of this sensorimotor timing. We assessed adolescents' synchronization and capacity to correct asynchronies when given online visual feedback. Variability of synchronization while receiving feedback predicted phonological memory and reading sub-skills, as well as maturation of cortical auditory processing; less variable synchronization during the presence of feedback tracked with maturation of cortical processing of sound onsets and resting gamma activity. We suggest the ability to incorporate feedback during synchronization is an index of intentional, multimodal timing-based integration in the maturing adolescent brain. Precision of temporal coding across modalities is important for speech processing and literacy skills that rely on dynamic interactions with sound. Synchronization employing feedback may prove useful as a remedial strategy for individuals who struggle with timing-based language learning impairments.
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Affiliation(s)
- Kali Woodruff Carr
- Auditory Neuroscience Laboratory, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Communication Sciences, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA
| | - Ahren B Fitzroy
- Auditory Neuroscience Laboratory, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Communication Sciences, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA
| | - Adam Tierney
- Auditory Neuroscience Laboratory, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Communication Sciences, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA
| | - Travis White-Schwoch
- Auditory Neuroscience Laboratory, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Communication Sciences, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Communication Sciences, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA; Department of Neurobiology & Physiology, Northwestern University, 2205 Tech Drive, Evanston, IL 60208, USA; Department of Otolaryngology, Northwestern University, 675 North St Clair, Chicago, IL, USA.
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24
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Habibi A, Cahn BR, Damasio A, Damasio H. Neural correlates of accelerated auditory processing in children engaged in music training. Dev Cogn Neurosci 2016; 21:1-14. [PMID: 27490304 PMCID: PMC6987702 DOI: 10.1016/j.dcn.2016.04.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 11/29/2022] Open
Abstract
Several studies comparing adult musicians and non-musicians have shown that music training is associated with brain differences. It is unknown, however, whether these differences result from lengthy musical training, from pre-existing biological traits, or from social factors favoring musicality. As part of an ongoing 5-year longitudinal study, we investigated the effects of a music training program on the auditory development of children, over the course of two years, beginning at age 6–7. The training was group-based and inspired by El-Sistema. We compared the children in the music group with two comparison groups of children of the same socio-economic background, one involved in sports training, another not involved in any systematic training. Prior to participating, children who began training in music did not differ from those in the comparison groups in any of the assessed measures. After two years, we now observe that children in the music group, but not in the two comparison groups, show an enhanced ability to detect changes in tonal environment and an accelerated maturity of auditory processing as measured by cortical auditory evoked potentials to musical notes. Our results suggest that music training may result in stimulus specific brain changes in school aged children.
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Affiliation(s)
- Assal Habibi
- Brain and Creativity Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, United States.
| | - B Rael Cahn
- Brain and Creativity Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, United States; Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Antonio Damasio
- Brain and Creativity Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, United States
| | - Hanna Damasio
- Brain and Creativity Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, United States
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25
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Gabr TA, Hassaan MR. Speech processing in children with cochlear implant. Int J Pediatr Otorhinolaryngol 2015; 79:2028-34. [PMID: 26421974 DOI: 10.1016/j.ijporl.2015.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/29/2015] [Accepted: 09/01/2015] [Indexed: 11/28/2022]
Abstract
UNLABELLED Cochlear implants (CIs) can be used effectively in the profoundly impaired children individuals. OBJECTIVES This work was designed to assess speech processing at brainstem and cortical level in children fitted with CIs to investigate the possible influence of brainstem processing of speech on the cortical processing in those children. METHOD Twenty children fitted with CIs underwent aided sound-field audiologic evaluation, speech evoked cortical auditory evoked potentials (S-CAEPs) and according to the results, children were classified into two groups: group I with good cortical response and group II with poor cortical response. This was followed by speech evoked ABR (S-ABR) recoding. RESULTS P1 component of CAEPs was recorded in all children while other component showed variable results. S-ABR was recorded in all children even those with poor S-CAEPs response who showed delayed D, E, F and O latencies. However, S-ABR amplitudes did not show any significant difference between both groups. CONCLUSIONS Children fitted with CI showed immediate cortical activation following device programming and this activity depends on the age of implantation as well as the child's age. S-ABR provides a new clinical tool that showed an important role of brainstem in complex sound processing that contribute to cortical processing.
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Affiliation(s)
- Takwa A Gabr
- Associate Professor of Audiology, Audiology Unit, ENT Department, Faculty of Medicine Tanta University, Tanta, Egypt.
| | - Mohammad R Hassaan
- Associate Professor of Audiology, Audiology Unit, ENT Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Fitzroy AB, Krizman J, Tierney A, Agouridou M, Kraus N. Longitudinal maturation of auditory cortical function during adolescence. Front Hum Neurosci 2015; 9:530. [PMID: 26539092 PMCID: PMC4611058 DOI: 10.3389/fnhum.2015.00530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 09/14/2015] [Indexed: 12/03/2022] Open
Abstract
Cross-sectional studies have demonstrated that the cortical auditory evoked potential (CAEP) changes substantially in amplitude and latency from childhood to adulthood, suggesting that these aspects of the CAEP continue to mature through adolescence. However, no study to date has longitudinally followed maturation of these CAEP measures through this developmental period. Additionally, no study has examined the trial-to-trial variability of the CAEP during adolescence. Therefore, we longitudinally tracked changes in the latency, amplitude, and variability of the P1, N1, P2, and N2 components of the CAEP in 68 adolescents from age 14 years to age 17 years. Latency decreased for N1 and N2, and did not change for P1 or P2. Amplitude decreased for P1 and N2, increased for N1, and did not change for P2. Variability decreased with age for all CAEP components. These findings provide longitudinal support for the view that the human auditory system continues to mature through adolescence. Continued auditory system maturation through adolescence suggests that CAEP neural generators remain plastic during this age range and potentially amenable to experience-based enhancement or deprivation.
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Affiliation(s)
- Ahren B Fitzroy
- Department of Communication Sciences and Disorders, Northwestern University Evanston, IL, USA ; Auditory Neuroscience Laboratory, Northwestern University Evanston, IL, USA
| | - Jennifer Krizman
- Department of Communication Sciences and Disorders, Northwestern University Evanston, IL, USA ; Auditory Neuroscience Laboratory, Northwestern University Evanston, IL, USA
| | - Adam Tierney
- Department of Communication Sciences and Disorders, Northwestern University Evanston, IL, USA ; Auditory Neuroscience Laboratory, Northwestern University Evanston, IL, USA
| | - Manto Agouridou
- Department of Communication Sciences and Disorders, Northwestern University Evanston, IL, USA ; Auditory Neuroscience Laboratory, Northwestern University Evanston, IL, USA
| | - Nina Kraus
- Department of Communication Sciences and Disorders, Northwestern University Evanston, IL, USA ; Auditory Neuroscience Laboratory, Northwestern University Evanston, IL, USA ; Institute for Neuroscience, Northwestern University Evanston, IL, USA ; Department of Neurobiology and Physiology, Northwestern University Evanston, IL, USA ; Department of Otolaryngology, Northwestern University Evanston, IL, USA
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Almeqbel A, McMahon C. Objective measurement of high-level auditory cortical function in children. Int J Pediatr Otorhinolaryngol 2015; 79:1055-62. [PMID: 25998216 DOI: 10.1016/j.ijporl.2015.04.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 04/16/2015] [Accepted: 04/17/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE This study examined whether the N2 latency of the cortical auditory evoked potential (CAEP) could be used as an objective indicator of temporal processing ability in normally hearing children. METHODS The N2 latency was evoked using three temporal processing paradigms: (1) differences in voice-onset-times (VOTs); (2) speech-in-noise using the CV/da/embedded in broadband noise (BBN) with varying signal-to-noise ratios (SNRs); and (3) 16Hz amplitude-modulated (AM) BBN presented (i) alone and (ii) following an unmodulated BBN, using four modulation depths. Thirty-four school-aged children with normal hearing, speech, language and reading were stratified into two groups: 5-7 years (n=13) and 8-12 years (n=21). RESULTS The N2 latency shifted significantly and systematically with differences in VOT and SNR, and was significantly different in the two AM-BBN conditions. CONCLUSIONS For children without an N1 peak in the cortical waveform, the N2 peak can be used as a sensitive measure of temporal processing for these stimuli. SIGNIFICANCE N2 latency of the CAEP can be used as an objective measure of temporal processing ability in a paediatric population with temporal processing disorder who are difficult to assess via behavioural response.
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Affiliation(s)
- Aseel Almeqbel
- Department of Hearing and Speech Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Kuwait City, Kuwait.
| | - Catherine McMahon
- Linguistics Department, Faculty of Human Sciences, Macquarie University, Sydney, NSW, Australia; The HEARing Cooperative Research Centre (CRC), Melbourne, VIC, Australia
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Auditory event-related potentials are related to cognition at preschool age after very preterm birth. Pediatr Res 2015; 77:570-8. [PMID: 25642663 DOI: 10.1038/pr.2015.7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 10/01/2014] [Indexed: 11/08/2022]
Abstract
BACKGROUND Auditory event-related potentials (AERP) are neurophysiological correlates of sound perception and cognitive processes. Our aim was to study in very preterm born children at preschool age if AERP correlate with cognitive outcome. METHODS Seventy children (mean ± SD gestational age 27.4 ± 1.9 wk, birth weight 996 ± 288 g) were investigated at age 4.3-5.3 y with psychological testing (WPPSI-R, four subtests of NEPSY). Electroencephalogram was recorded while they listened to a repeated standard tone, randomly replaced by one of three deviants. Latencies and amplitudes for AERP components and mean amplitudes in successive 50-ms AERP time windows were measured. RESULTS Better cognitive test results and higher gestational age correlated with shorter P1 latencies and more positive mean amplitudes 150-500 ms after stimulus change onset. Neonatal brain damage was associated with a negative displacement of AERP curves. Neonatal morbidity had an impact on earlier time windows while gestational age and brain damage on both early and later time windows. CONCLUSION AERP measures were associated with cognitive outcome. Neonatal morbidity mainly affects early cortical auditory encoding, while immaturity and brain damage additionally influence higher cortical functions of auditory perception and distraction. Perinatal auditory environment might play a role in development of auditory processing.
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Krizman J, Tierney A, Fitzroy AB, Skoe E, Amar J, Kraus N. Continued maturation of auditory brainstem function during adolescence: A longitudinal approach. Clin Neurophysiol 2015; 126:2348-55. [PMID: 25801342 DOI: 10.1016/j.clinph.2015.01.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 12/23/2014] [Accepted: 01/27/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Considerable attention has been devoted to understanding development of the auditory system during the first few years of life, yet comparatively little is known about maturation during adolescence. Moreover, the few studies investigating auditory system maturation in late childhood have employed a cross-sectional approach. METHODS To better understand auditory development in adolescence, we used a longitudinal design to measure the subcortical encoding of speech syllables in 74 adolescents at four time points from ages 14 through 17. RESULTS We find a developmental decrease in the spectral representation of the evoking syllable, trial-by-trial response consistency, and tracking of the amplitude envelope, while timing of the evoked response appears to be stable over this age range. CONCLUSIONS Subcortical auditory development is a protracted process that continues throughout the first two decades of life. Specifically, our data suggest that adolescence represents a transitional point between the enhanced response during childhood and the mature, though smaller, response of adults. SIGNIFICANCE That the auditory brainstem has not fully matured by the end of adolescence suggests that auditory enrichment begun later in childhood could lead to enhancements in auditory processing and alter developmental profiles.
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Affiliation(s)
- Jennifer Krizman
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA
| | - Adam Tierney
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA
| | - Ahren B Fitzroy
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA
| | - Erika Skoe
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA
| | - Jordan Amar
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Neurobiology and Physiology, Northwestern University, Evanston, IL, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA(3); Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA; Institute for Neuroscience, Northwestern University, Evanston, IL, USA; Department of Neurobiology and Physiology, Northwestern University, Evanston, IL, USA; Department of Otolaryngology, Northwestern University, Evanston, IL, USA.
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Strait DL, Slater J, O'Connell S, Kraus N. Music training relates to the development of neural mechanisms of selective auditory attention. Dev Cogn Neurosci 2015; 12:94-104. [PMID: 25660985 PMCID: PMC6989776 DOI: 10.1016/j.dcn.2015.01.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 01/06/2015] [Accepted: 01/06/2015] [Indexed: 11/26/2022] Open
Abstract
Does music training shape the development of neural mechanisms of auditory attention? We compared cortical responses to attended speech in child and adult musicians and nonmusicians. Musician children and adults had less prefrontal auditory response variability during attention.
Selective attention decreases trial-to-trial variability in cortical auditory-evoked activity. This effect increases over the course of maturation, potentially reflecting the gradual development of selective attention and inhibitory control. Work in adults indicates that music training may alter the development of this neural response characteristic, especially over brain regions associated with executive control: in adult musicians, attention decreases variability in auditory-evoked responses recorded over prefrontal cortex to a greater extent than in nonmusicians. We aimed to determine whether this musician-associated effect emerges during childhood, when selective attention and inhibitory control are under development. We compared cortical auditory-evoked variability to attended and ignored speech streams in musicians and nonmusicians across three age groups: preschoolers, school-aged children and young adults. Results reveal that childhood music training is associated with reduced auditory-evoked response variability recorded over prefrontal cortex during selective auditory attention in school-aged child and adult musicians. Preschoolers, on the other hand, demonstrate no impact of selective attention on cortical response variability and no musician distinctions. This finding is consistent with the gradual emergence of attention during this period and may suggest no pre-existing differences in this attention-related cortical metric between children who undergo music training and those who do not.
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Affiliation(s)
- Dana L Strait
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA; Institute for Neuroscience, Northwestern University, Chicago, IL, USA
| | - Jessica Slater
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA; Department of Communication Sciences, Northwestern University, Evanston, IL, USA
| | - Samantha O'Connell
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, USA; Institute for Neuroscience, Northwestern University, Chicago, IL, USA; Department of Communication Sciences, Northwestern University, Evanston, IL, USA; Department of Neurobiology and Physiology, Northwestern University, Evanston, IL, USA; Department of Otolaryngology, Northwestern University, Chicago, IL, USA.
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Shafer VL, Yu YH, Wagner M. Maturation of cortical auditory evoked potentials (CAEPs) to speech recorded from frontocentral and temporal sites: three months to eight years of age. Int J Psychophysiol 2014; 95:77-93. [PMID: 25219893 DOI: 10.1016/j.ijpsycho.2014.08.1390] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 08/08/2014] [Accepted: 08/12/2014] [Indexed: 11/18/2022]
Abstract
The goal of the current analysis was to examine the maturation of cortical auditory evoked potentials (CAEPs) from three months of age to eight years of age. The superior frontal positive-negative-positive sequence (P1, N2, P2) and the temporal site, negative-positive-negative sequence (possibly, Na, Ta, Tb of the T-complex) were examined. Event-related potentials were recorded from 63 scalp sites to a 250-ms vowel. Amplitude and latency of peaks were measured at left and right frontal sites (near Fz) and at left and right temporal sites (T7 and T8). In addition, the largest peak (typically corresponding to P1) was selected from global field power (GFP). The results revealed a large positive peak (P1) easily identified at frontal sites across all ages. The N2 emerged after 6 months of age and the following P2 between 8 and 30 months of age. The latencies of these peaks decreased exponentially with the most rapid decrease observed for P1. For amplitude, only P1 showed a clear relationship with age, becoming more positive in a somewhat linear fashion. At the temporal sites only a negative peak, which might be Na, was clearly observed at both left and right sites in children older than 14 months and peaking between 100 and 200 ms. P1 measures at frontal sites and Na peak latencies were moderately correlated. The temporal negative peak latency showed a different maturational timecourse (linear in nature) than the P1 peak, suggesting at least partial independence. Distinct Ta (positive) and Tb (negative) peaks, following Na and peaking between 120 and 220 ms were not consistently found in most age groups of children, except Ta which was present in 7 year olds. Future research, which includes manipulation of stimulus factors, and use of modeling techniques will be needed to explain the apparent, protracted maturation of the temporal site measures in the current study.
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Affiliation(s)
- Valerie L Shafer
- Ph.D. Program in Speech-Language-Hearing Sciences, The Graduate Center, City University of New York, 365 5th Avenue, New York, NY 10016, USA.
| | - Yan H Yu
- William Paterson University of New Jersey, 300 Pompton Road, Wayne, NJ 07470, USA
| | - Monica Wagner
- St. John's University, 8000 Utopia Parkway, Queens, NY 11439, USA
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32
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Yoshimura Y, Kikuchi M, Ueno S, Shitamichi K, Remijn GB, Hiraishi H, Hasegawa C, Furutani N, Oi M, Munesue T, Tsubokawa T, Higashida H, Minabe Y. A longitudinal study of auditory evoked field and language development in young children. Neuroimage 2014; 101:440-7. [PMID: 25067819 DOI: 10.1016/j.neuroimage.2014.07.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 06/16/2014] [Accepted: 07/18/2014] [Indexed: 10/25/2022] Open
Abstract
The relationship between language development in early childhood and the maturation of brain functions related to the human voice remains unclear. Because the development of the auditory system likely correlates with language development in young children, we investigated the relationship between the auditory evoked field (AEF) and language development using non-invasive child-customized magnetoencephalography (MEG) in a longitudinal design. Twenty typically developing children were recruited (aged 36-75 months old at the first measurement). These children were re-investigated 11-25 months after the first measurement. The AEF component P1m was examined to investigate the developmental changes in each participant's neural brain response to vocal stimuli. In addition, we examined the relationships between brain responses and language performance. P1m peak amplitude in response to vocal stimuli significantly increased in both hemispheres in the second measurement compared to the first measurement. However, no differences were observed in P1m latency. Notably, our results reveal that children with greater increases in P1m amplitude in the left hemisphere performed better on linguistic tests. Thus, our results indicate that P1m evoked by vocal stimuli is a neurophysiological marker for language development in young children. Additionally, MEG is a technique that can be used to investigate the maturation of the auditory cortex based on auditory evoked fields in young children. This study is the first to demonstrate a significant relationship between the development of the auditory processing system and the development of language abilities in young children.
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Affiliation(s)
- Yuko Yoshimura
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Mitsuru Kikuchi
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan.
| | - Sanae Ueno
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Kiyomi Shitamichi
- Department of Psychiatry and Neurobiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Gerard B Remijn
- International Education Center, Kyushu University, Fukuoka, Japan
| | - Hirotoshi Hiraishi
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Chiaki Hasegawa
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Naoki Furutani
- Department of Psychiatry and Neurobiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Manabu Oi
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Toshio Munesue
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Tsunehisa Tsubokawa
- Department of Anesthesiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Haruhiro Higashida
- Research Center for Child Mental Development, Kanazawa University, Kanazawa, Japan
| | - Yoshio Minabe
- Department of Psychiatry and Neurobiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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33
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Effects of broadband noise on cortical evoked auditory responses at different loudness levels in young adults. Neuroreport 2014; 25:312-9. [DOI: 10.1097/wnr.0000000000000089] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hövel H, Partanen E, Huotilainen M, Lindgren M, Rosén I, Fellman V. Auditory event-related potentials at preschool age in children born very preterm. Clin Neurophysiol 2014; 125:449-56. [DOI: 10.1016/j.clinph.2013.07.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 07/02/2013] [Accepted: 07/27/2013] [Indexed: 11/30/2022]
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Strait DL, Slater J, Abecassis V, Kraus N. Cortical response variability as a developmental index of selective auditory attention. Dev Sci 2014; 17:175-86. [PMID: 24267508 PMCID: PMC4119172 DOI: 10.1111/desc.12107] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Accepted: 07/02/2013] [Indexed: 11/30/2022]
Abstract
Attention induces synchronicity in neuronal firing for the encoding of a given stimulus at the exclusion of others. Recently, we reported decreased variability in scalp-recorded cortical evoked potentials to attended compared with ignored speech in adults. Here we aimed to determine the developmental time course for this neural index of auditory attention. We compared cortical auditory-evoked variability with attention across three age groups: preschoolers, school-aged children and young adults. Results reveal an increased impact of selective auditory attention on cortical response variability with development. Although all three age groups have equivalent response variability to attended speech, only school-aged children and adults have a distinction between attend and ignore conditions. Preschoolers, on the other hand, demonstrate no impact of attention on cortical responses, which we argue reflects the gradual emergence of attention within this age range. Outcomes are interpreted in the context of the behavioral relevance of cortical response variability and its potential to serve as a developmental index of cognitive skill.
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Affiliation(s)
- Dana L. Strait
- Auditory Neuroscience Laboratory, Northwestern University, USA
- Institute for Neuroscience, Northwestern University, USA
| | - Jessica Slater
- Auditory Neuroscience Laboratory, Northwestern University, USA
- Department of Communication Sciences, Northwestern University, USA
| | - Victor Abecassis
- Auditory Neuroscience Laboratory, Northwestern University, USA
- McCormick School of Engineering and Applied Sciences, Northwestern University, USA
| | - Nina Kraus
- Auditory Neuroscience Laboratory, Northwestern University, USA
- Institute for Neuroscience, Northwestern University, USA
- Department of Communication Sciences, Northwestern University, USA
- McCormick School of Engineering and Applied Sciences, Northwestern University, USA
- Department of Neurobiology and Physiology, Northwestern University, USA
- Department of Otolaryngology, Northwestern University, USA
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Scheerer NE, Liu H, Jones JA. The developmental trajectory of vocal and event-related potential responses to frequency-altered auditory feedback. Eur J Neurosci 2013; 38:3189-200. [DOI: 10.1111/ejn.12301] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/30/2013] [Accepted: 06/09/2013] [Indexed: 01/17/2023]
Affiliation(s)
- Nichole E. Scheerer
- Psychology Department and Laurier Centre for Cognitive Neuroscience; Wilfrid Laurier University; Waterloo ON N2L 4A6 Canada
| | - Hanjun Liu
- Department of Rehabilitation Medicine; The First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - Jeffery A. Jones
- Psychology Department and Laurier Centre for Cognitive Neuroscience; Wilfrid Laurier University; Waterloo ON N2L 4A6 Canada
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Munivrana B, Mildner V. Cortical auditory evoked potentials in unsuccessful cochlear implant users. CLINICAL LINGUISTICS & PHONETICS 2013; 27:472-483. [PMID: 23621479 DOI: 10.3109/02699206.2013.771214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In some cochlear implant users, success is not achieved in spite of optimal clinical factors (including age at implantation, duration of rehabilitation and post-implant hearing level), which may be attributed to disorders at higher levels of the auditory pathway. We used cortical auditory evoked potentials to investigate the ability to perceive and discriminate auditory stimuli in 10 unsuccessful implant users aged 8-10 years (CI) and 10 healthy age-matched controls with normal hearing (NH). Pure tones (1 and 2 kHz) and double consonant-vowel syllables were applied. The stimuli were presented in an oddball paradigm that required the subjects to react consciously. The latencies and amplitudes of the P1, N1, P2, N2 and P3 waves were analyzed, in addition to reaction times and number of responses. Significant differences in the average response times and number of responses were observed between the CI and NH groups. The latencies also indicate that the CI group took longer to perceive and discriminate between tonal and speech auditory stimuli than the NH group.
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Agostinho-Pesse RS, Alvarenga KDF. Potencial evocado auditivo de longa latência para estímulo de fala apresentado com diferentes transdutores em crianças ouvintes. REVISTA CEFAC 2013. [DOI: 10.1590/s1516-18462013005000028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objetivo: analisar, de forma comparativa, a influência do transdutor no registro dos componentes P1, N1 e P2 eliciados por estímulo de fala, quanto à latência e à amplitude, em crianças ouvintes. Método: 30 crianças ouvintes de quatro a 12 anos de idade, de ambos os sexos. Os potenciais evocados auditivos de longa latência foram pesquisados por meio dos transdutores, fone de inserção e caixa acústica, eliciados por estímulo de fala /da/, sendo o intervalo interestímulos de 526ms, a intensidade de 70dBNA e a taxa de apresentação de 1,9 estímulos por segundo. Foram analisados os componentes P1, N1 e P2 quando presentes, quanto à latência e à amplitude. Resultados: constatou-se um nível de concordância forte entre a pesquisadora e o juiz. Não houve diferença estatisticamente significante ao comparar os valores de latência e amplitude dos componentes P1, N1 e P2, ao considerar sexo e orelha, assim como para a latência dos componentes quando analisado os tipos de transdutores. Entretanto, houve diferença estatisticamente significante para a amplitude dos componentes P1 e N1, com maior amplitude para o transdutor caixa acústica. Conclusão: os valores de latência dos componentes P1, N1 e P2 e amplitude de P2 obtidos com fone de inserção podem ser utilizados como referência de normalidade independente do transdutor utilizado para a pesquisa dos potenciais evocados auditivos de longa latência.
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Lohvansuu K, Hämäläinen JA, Tanskanen A, Bartling J, Bruder J, Honbolygó F, Schulte-Körne G, Démonet JF, Csépe V, Leppänen PHT. Separating mismatch negativity (MMN) response from auditory obligatory brain responses in school-aged children. Psychophysiology 2013; 50:640-52. [DOI: 10.1111/psyp.12048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 02/23/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Kaisa Lohvansuu
- Department of Psychology; University of Jyväskylä; Jyväskylä; Finland
| | | | - Annika Tanskanen
- Department of Psychology; University of Jyväskylä; Jyväskylä; Finland
| | - Jürgen Bartling
- Department of Child and Adolescent Psychiatry; Psychosomatics and Psychotherapy; University of Munich; München; Germany
| | - Jennifer Bruder
- Department of Child and Adolescent Psychiatry; Psychosomatics and Psychotherapy; University of Munich; München; Germany
| | - Ferenc Honbolygó
- Institute for Psychology; Hungarian Academy of Sciences; Budapest; Hungary
| | - Gerd Schulte-Körne
- Department of Child and Adolescent Psychiatry; Psychosomatics and Psychotherapy; University of Munich; München; Germany
| | | | - Valéria Csépe
- Institute for Psychology; Hungarian Academy of Sciences; Budapest; Hungary
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Lateralized auditory brain function in children with normal reading ability and in children withdyslexia. Neuropsychologia 2013; 51:633-41. [DOI: 10.1016/j.neuropsychologia.2012.12.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 12/08/2012] [Accepted: 12/17/2012] [Indexed: 11/22/2022]
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Developmental sex-specific change in auditory–vocal integration: ERP evidence in children. Clin Neurophysiol 2013; 124:503-13. [PMID: 23036182 DOI: 10.1016/j.clinph.2012.08.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Revised: 08/27/2012] [Accepted: 08/29/2012] [Indexed: 10/27/2022]
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Archila-Suerte P, Zevin J, Ramos AI, Hernandez AE. The neural basis of non-native speech perception in bilingual children. Neuroimage 2013; 67:51-63. [PMID: 23123633 PMCID: PMC5942220 DOI: 10.1016/j.neuroimage.2012.10.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Revised: 09/17/2012] [Accepted: 10/15/2012] [Indexed: 10/27/2022] Open
Abstract
The goal of the present study is to reveal how the neural mechanisms underlying non-native speech perception change throughout childhood. In a pre-attentive listening fMRI task, English monolingual and Spanish-English bilingual children - divided into groups of younger (6-8yrs) and older children (9-10yrs) - were asked to watch a silent movie while several English syllable combinations played through a pair of headphones. Two additional groups of monolingual and bilingual adults were included in the analyses. Our results show that the neural mechanisms supporting speech perception throughout development differ in monolinguals and bilinguals. While monolinguals recruit perceptual areas (i.e., superior temporal gyrus) in early and late childhood to process native speech, bilinguals recruit perceptual areas (i.e., superior temporal gyrus) in early childhood and higher-order executive areas in late childhood (i.e., bilateral middle frontal gyrus and bilateral inferior parietal lobule, among others) to process non-native speech. The findings support the Perceptual Assimilation Model and the Speech Learning Model and suggest that the neural system processes phonological information differently depending on the stage of L2 speech learning.
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Alain C, Roye A, Arnott SR. Middle- and long-latency auditory evoked potentials. DISORDERS OF PERIPHERAL AND CENTRAL AUDITORY PROCESSING 2013. [DOI: 10.1016/b978-0-7020-5310-8.00009-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Purdy SC, Sharma M, Munro KJ, Morgan CLA. Stimulus level effects on speech-evoked obligatory cortical auditory evoked potentials in infants with normal hearing. Clin Neurophysiol 2012; 124:474-80. [PMID: 23117114 DOI: 10.1016/j.clinph.2012.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 09/09/2012] [Accepted: 09/16/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To determine stimulus level effects on speech-evoked cortical auditory evoked potentials (CAEPs) in infants for a low (/m/) and high (/t/) frequency speech sound. METHODS CAEPs were recorded for two natural speech tokens, /m/ and /t/. Participants were 16 infants aged 3-8months with no risk factors for hearing impairment, no parental concern regarding hearing or development, and normal tympanograms and otoacoustic emissions. Infants were either tested at levels of 30, 50, and 70dB SPL or at 40, 60, and 80dB SPL, in counterbalanced order. RESULTS Input-output functions show different effects of increasing sound level between stimuli. There were minimal changes in latency with increase in level for /t/. For /m/, there were approximately 50-60ms latency increases at soft compared to loud levels. Amplitudes saturated at moderate-high levels (60-80dB SPL) for both stimuli. CONCLUSIONS Infants' CAEP input-output functions differ for /t/ versus /m/ and differ from those previously reported for adults for other stimuli. Effects of stimulus and level on CAEPs should be considered when using CAEPs for hearing aid or cochlear implant evaluation in infants. SIGNIFICANCE Speech-evoked CAEPs provide an objective measure of central auditory processing. Possible differences in CAEP growth between infants and adults suggest developmental effects on intensity coding by the auditory cortex.
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Affiliation(s)
- S C Purdy
- The University of Auckland, New Zealand.
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Mahajan Y, McArthur G. Maturation of auditory event-related potentials across adolescence. Hear Res 2012; 294:82-94. [PMID: 23103362 DOI: 10.1016/j.heares.2012.10.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 10/14/2012] [Accepted: 10/16/2012] [Indexed: 10/27/2022]
Abstract
Adolescence is a time of great change in the brain in terms of structure and function. It is possible to track the development of neural function across adolescence using auditory event-related potentials (ERPs). We measured passive auditory ERPs to pure tones and consonant-vowel (CV) syllables in 90 children and adolescents aged 10-18 years, as well as 10 adults. With one exception, the pattern of results were the same for tones and speech: Across adolescence, the P1 ERP peak decreased in size and latency, the N1 increased in size and decreased in latency, the P2 remained constant in size, and the N2 decreased in size but remained stable across adolescence. The exception was P2 latency, which increased for speech but remained stable for tones. Interesting step-like changes were observed for N1 latency for both tones and speech stimuli in 15- to 16-year-olds. These may stem from rapid hormonal changes that affect neurotransmitter activity of the ERP-generating neurons.
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Affiliation(s)
- Yatin Mahajan
- ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Macquarie University, NSW 2109, Australia.
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Swink S, Stuart A. Auditory long latency responses to tonal and speech stimuli. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2012; 55:447-459. [PMID: 22199192 DOI: 10.1044/1092-4388(2011/10-0364)] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE The effects of type of stimuli (i.e., nonspeech vs. speech), speech (i.e., natural vs. synthetic), gender of speaker and listener, speaker (i.e., self vs. other), and frequency alteration in self-produced speech on the late auditory cortical evoked potential were examined. METHOD Young adult men (n = 15) and women (n = 15), all with normal hearing, participated. P1-N1-P2 components were evoked with the following stimuli: 723-Hz tone bursts; naturally produced male and female /a/ tokens; synthetic male and female /a/ tokens; an /a/ token self-produced by each participant; and the same /a/ token produced by the participant but with a shift in frequency. RESULTS In general, P1-N1-P2 component latencies were significantly shorter when evoked with the tonal stimulus versus speech stimuli and natural versus synthetic speech (p < .05). Women had significantly shorter latencies for only the P2 component (p < .05). For the tonal versus speech stimuli, P1 amplitudes were significantly smaller, and N1 and P2 amplitudes were significantly larger (p < .05). There was no significant effect of gender on the P1, N1, or P2 amplitude (p > .05). CONCLUSION These findings are consistent with the notion that spectrotemporal characteristics of nonspeech and speech stimuli affect P1-N1-P2 latency and amplitude components.
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Cortical auditory evoked potentials in children with a hearing loss: a pilot study. Int J Pediatr 2012; 2012:250254. [PMID: 22291717 PMCID: PMC3265101 DOI: 10.1155/2012/250254] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 10/03/2011] [Accepted: 10/11/2011] [Indexed: 11/17/2022] Open
Abstract
Objective. This study examined the patterns of neural activity in the central auditory system in children with hearing loss. Methods. Cortical potentials and mismatch responses (MMRs) were recorded from ten children aged between 9 and 10 years: five with hearing loss and five with normal hearing in passive oddball paradigms using verbal and nonverbal stimuli. Results. Results indicate a trend toward larger P1 amplitude, a significant reduction in amplitude, and latency of N2 in children with hearing loss compared to control. No significant group differences were observed for the majority of the MMRs conditions. Conclusions. Data suggest that the reduced auditory input affects the pattern of cortical-auditory-evoked potentials in children with a mild to moderately severe hearing loss. Results suggest maturational delays and/or deficits in central auditory processing in children with hearing loss, as indicated by the neurophysiological markers P1 and N2. In contrast, negative MMR data suggest that the amplification provided by the hearing aids could have allowed children with hearing loss to develop adequate discriminative abilities.
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Doellinger M, Burger M, Hoppe U, Bosco E, Eysholdt U. Effects of consonant-vowel transitions in speech stimuli on cortical auditory evoked potentials in adults. Open Neurol J 2011; 5:37-45. [PMID: 21643536 PMCID: PMC3106335 DOI: 10.2174/1874205x01105010037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Revised: 01/25/2011] [Accepted: 02/05/2011] [Indexed: 11/22/2022] Open
Abstract
We examined the neural activation to consonant-vowel transitions by cortical auditory evoked potentials (AEPs). The aim was to show whether cortical response patterns to speech stimuli contain components due to one of the temporal features, the voice-onset time (VOT). In seven normal-hearing adults, the cortical responses to four different monosyllabic words were opposed to the cortical responses to noise stimuli with the same temporal envelope as the speech stimuli. Significant hemispheric asymmetries were found for speech but not in noise evoked potentials. The difference signals between the AEPs to speech and corresponding noise stimuli revealed a significant negative component, which correlated with the VOT. The hemispheric asymmetries can be referred to rapid spectral changes. The correlation with the VOT indicates that the significant component in the difference signal reflects the perception of the acoustic change within the consonant-vowel transition. Thus, at the level of automatic processing, the characteristics of speech evoked potentials appear to be determined primarily by temporal aspects of the eliciting stimuli.
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Affiliation(s)
- Michael Doellinger
- Department of Phoniatrics and Pediatric Audiology, University Hospital Erlangen, Bohlenplatz 21, 91054 Erlangen, Germany
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Parviainen T, Helenius P, Poskiparta E, Niemi P, Salmelin R. Speech perception in the child brain: cortical timing and its relevance to literacy acquisition. Hum Brain Mapp 2011; 32:2193-206. [PMID: 21391257 DOI: 10.1002/hbm.21181] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2010] [Revised: 08/18/2010] [Accepted: 09/09/2010] [Indexed: 11/11/2022] Open
Abstract
Speech processing skills go through intensive development during mid-childhood, providing basis also for literacy acquisition. The sequence of auditory cortical processing of speech has been characterized in adults, but very little is known about the neural representation of speech sound perception in the developing brain. We used whole-head magnetoencephalography (MEG) to record neural responses to speech and nonspeech sounds in first-graders (7-8-year-old) and compared the activation sequence to that in adults. In children, the general location of neural activity in the superior temporal cortex was similar to that in adults, but in the time domain the sequence of activation was strikingly different. Cortical differentiation between sound types emerged in a prolonged response pattern at about 250 ms after sound onset, in both hemispheres, clearly later than the corresponding effect at about 100 ms in adults that was detected specifically in the left hemisphere. Better reading skills were linked with shorter-lasting neural activation, speaking for interdependence of the maturing neural processes of auditory perception and developing linguistic skills. This study uniquely utilized the potential of MEG in comparing both spatial and temporal characteristics of neural activation between adults and children. Besides depicting the group-typical features in cortical auditory processing, the results revealed marked interindividual variability in children.
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Affiliation(s)
- Tiina Parviainen
- Brain Research Unit, Low Temperature Laboratory, Aalto University School of Science and Technology, Espoo, Finland.
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