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Article ; Online: Data of contralateral suppression of transient evoked otoacoustic emissions for various noise signals.

Kalaiah, Mohan Kumar / Shastri, Usha

2021 Volume 38, Page(s) 107367

Abstract: The data presented in this article is related to our research article titled "contralateral suppression of transient evoked otoacoustic emissions for various noise signals" (Kalaiah et al., 2017) [1]. The contralateral suppression of transient evoked ... ...

Abstract	The data presented in this article is related to our research article titled "contralateral suppression of transient evoked otoacoustic emissions for various noise signals" (Kalaiah et al., 2017) [1]. The contralateral suppression of transient evoked otoacoustic emissions (TEOAE) was measured from 19 young adults with normal hearing sensitivity. To measure the contralateral suppression, TEOAEs were recorded using clicks in linear mode with and without presenting noise to the contralateral ear. Initially, the TEOAE was recorded without presenting noise to the contralateral ear of participants referred to as 'baseline' TEOAE. Following this, the TEOAE was recorded by presenting noise to the contralateral ear, referred to as contralateral noise conditions. Noises used in the present study included white noise, amplitude-modulated noise, and real-life noise signals. All recordings were completed on the same session in single probe-fit condition. The data reported here include the global amplitude of TEOAE, noise-floor level, and signal-to-noise ratio across baselines and contralateral noise conditions and the magnitude of contralateral suppression for various noises. Further, the data includes the amplitude of TEOAEs and suppression magnitude across eight 2 ms time bands between 2 and 18 ms.
Language	English
Publishing date	2021-09-13
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2786545-9
ISSN	2352-3409 ; 2352-3409
ISSN (online)	2352-3409
ISSN	2352-3409
DOI	10.1016/j.dib.2021.107367
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Data of contralateral suppression of transient evoked otoacoustic emissions for various noise signals

Kalaiah, Mohan Kumar / Shastri, Usha

Data in Brief. 2021 Oct., v. 38

2021

Abstract: The data presented in this article is related to our research article titled “contralateral suppression of transient evoked otoacoustic emissions for various noise signals” (Kalaiah et al., 2017) [1]. The contralateral suppression of transient evoked ... ...

Abstract	The data presented in this article is related to our research article titled “contralateral suppression of transient evoked otoacoustic emissions for various noise signals” (Kalaiah et al., 2017) [1]. The contralateral suppression of transient evoked otoacoustic emissions (TEOAE) was measured from 19 young adults with normal hearing sensitivity. To measure the contralateral suppression, TEOAEs were recorded using clicks in linear mode with and without presenting noise to the contralateral ear. Initially, the TEOAE was recorded without presenting noise to the contralateral ear of participants referred to as ‘baseline’ TEOAE. Following this, the TEOAE was recorded by presenting noise to the contralateral ear, referred to as contralateral noise conditions. Noises used in the present study included white noise, amplitude-modulated noise, and real-life noise signals. All recordings were completed on the same session in single probe-fit condition. The data reported here include the global amplitude of TEOAE, noise-floor level, and signal-to-noise ratio across baselines and contralateral noise conditions and the magnitude of contralateral suppression for various noises. Further, the data includes the amplitude of TEOAEs and suppression magnitude across eight 2 ms time bands between 2 and 18 ms.
Keywords	Whites ; ears ; emissions ; hearing ; hearings ; signal-to-noise ratio ; sounds ; whiting ; young adults
Language	English
Dates of publication	2021-10
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	2786545-9
ISSN	2352-3409
ISSN	2352-3409
DOI	10.1016/j.dib.2021.107367
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Relationship between parental stress and attitude towards cochlear implantation outcomes in children in an Indian context.

Piplani, Saloni / Kalaiah, Mohan Kumar / Shastri, Usha

CoDAS

2022 Volume 34, Issue 5, Page(s) e20210125

Abstract: Purpose: The study was aimed to investigate the relationship between parental stress and attitude of parents towards the outcomes of cochlear implantation in an Indian scenario.: Methods: A total of 59 parents of children with cochlear implantation ... ...

Abstract	Purpose: The study was aimed to investigate the relationship between parental stress and attitude of parents towards the outcomes of cochlear implantation in an Indian scenario. Methods: A total of 59 parents of children with cochlear implantation participated in the study. The outcomes of cochlear implant was measured using Parental attitudes of various aspects of cochlear implantation questionnaire and parental stress was measured using parental stress scale. The questionnaires were circulated to participants and data was collected in the form of e-survey. Results: The present study showed that the parental stress level was similar among mothers and fathers. Further, the parental attitude towards communication abilities of children and education were positively correlated with the duration of cochlear implantation. Finally, a significant positive correlation was found between the parental stress and the parental attitude towards communication abilities of children and social skills. Conclusion: The present study showed a positive relationship between parental stress and parental attitude towards the outcomes of cochlear implantation for aspects of communication abilities and social skills.
MeSH term(s)	Attitude ; Child ; Cochlear Implantation ; Cochlear Implants ; Female ; Humans ; Parents ; Surveys and Questionnaires
Language	English
Publishing date	2022-03-25
Publishing country	Brazil
Document type	Journal Article
ISSN	2317-1782
ISSN (online)	2317-1782
DOI	10.1590/2317-1782/20212021125
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Article: The Relationship between Contralateral Suppression of Transient Evoked Otoacoustic Emission and Unmasking of Speech Evoked Auditory Brainstem Response.

Kalaiah, Mohan Kumar / Mishra, Keshav / Shastri, Usha

International archives of otorhinolaryngology

2022 Volume 26, Issue 4, Page(s) e676–e682

Abstract: ... ...

Abstract	Introduction
Language	English
Publishing date	2022-04-20
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2578584-9
ISSN	1809-4864 ; 1809-9777
ISSN (online)	1809-4864
ISSN	1809-9777
DOI	10.1055/s-0042-1742774
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Article ; Online: The effect of coffee on contralateral suppression of transient evoked otoacoustic emissions.

Srivastava, Ishaan / Kalaiah, Mohan Kumar / Roushan, Ritik / Shastri, Usha / Kumar, Kaushlendra

F1000Research

2023 Volume 11, Page(s) 878

Abstract: ... ...

Abstract	Background
MeSH term(s)	Young Adult ; Humans ; Coffee ; Caffeine ; Cross-Over Studies ; Otoacoustic Emissions, Spontaneous/physiology ; Cochlea/physiology
Chemical Substances	Coffee ; Caffeine (3G6A5W338E)
Language	English
Publishing date	2023-09-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2699932-8
ISSN	2046-1402 ; 2046-1402
ISSN (online)	2046-1402
ISSN	2046-1402
DOI	10.12688/f1000research.122851.2
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Article: The Relationship between Contralateral Suppression of Transient Evoked Otoacoustic Emission and Unmasking of Speech Evoked Auditory Brainstem Response

Kalaiah, Mohan Kumar / Mishra, Keshav / Shastri, Usha

International Archives of Otorhinolaryngology

2022 Volume 26, Issue 04, Page(s) e676–e682

Abstract: Introduction: Several studies have shown that efferent pathways of the auditory system improve perception of speech-in-noise. But, the majority of investigations assessing the role of efferent pathways on speech perception have used contralateral ... ...

Abstract	Introduction: Several studies have shown that efferent pathways of the auditory system improve perception of speech-in-noise. But, the majority of investigations assessing the role of efferent pathways on speech perception have used contralateral suppression of otoacoustic emissions as a measure of efferent activity. By studying the effect of efferent activity on the speech-evoked auditory brainstem response (ABR), some more light could be shed on the effect of efferent pathways on the encoding of speech in the auditory pathway. Objectives: To investigate the relationship between contralateral suppression of transient evoked otoacoustic emission (CSTEOAE) and unmasking of speech ABR. Methods: A total of 23 young adults participated in the study. The CSTEOAE was measured using linear clicks at 60 dB peSPL and white noise at 60 dB sound pressure level (SPL). The speech ABR was recorded using the syllable /da/ at 80 dB SPL in quiet, ipsilateral noise, and binaural noise conditions. In the ipsilateral noise condition, white noise was presented to the test ear at 60 dB SPL, and, in the binaural noise condition, two separate white noises were presented to both ears. Results: The F0 amplitude of speech ABR was higher in quiet condition; however, the mean amplitude of F0 was not significantly different across conditions. Correlation analysis showed a significant positive correlation between the CSTEOAE and the magnitude of unmasking of F0 amplitude of speech ABR. Conclusions: The findings of the present study suggests that the efferent pathways are involved in speech-in-noise processing.
Keywords	otoacoustic emissions ; auditory brainstem responses ; efferent pathways ; speech
Language	English
Publishing date	2022-04-20
Publisher	Thieme Revinter Publicações Ltda.
Publishing place	Stuttgart ; New York
Document type	Article
ZDB-ID	2578584-9
ISSN	1809-4864 ; 1809-9777 ; 1809-4864
ISSN (online)	1809-4864
ISSN	1809-9777 ; 1809-4864
DOI	10.1055/s-0042-1742774
Database	Thieme publisher's database

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Article ; Online: Effect of speech-shaped noise on the recognition of malayalam and english consonants by malayalam listeners.

Kalaiah, Mohan K / Bhat, Jayashree S / Shastri, Usha

Noise & health

2020 Volume 21, Issue 99, Page(s) 55–61

Abstract: Objective: The present study compared recognition of native and non-native consonants in quiet and noise among native speakers of Malayalam.: Methods and material: Fifteen native speakers of Malayalam who had English as the medium of instruction at ... ...

Abstract	Objective: The present study compared recognition of native and non-native consonants in quiet and noise among native speakers of Malayalam. Methods and material: Fifteen native speakers of Malayalam who had English as the medium of instruction at school participated in the study. Stimuli comprised of 16 vowel-consonants-vowel nonsense syllables spoken by eight native speakers of Malayalam (native consonants) and eight native speakers of American English (non-native consonants). Recognition of native and non-native consonants was studied in quiet and in the presence of speech-shaped noise at signal-to-noise ratios (SNRs) of 8 dB, 0 dB, and -8 dB. The consonant recognition task was carried out as 16-alternative forced-choice procedure, and the responses were stored as confusion matrix. Results: In favourable listening condition (i.e., quiet and 8 dB SNR), the recognition score for native consonants was greater than non-native consonants. In contrast, at 0 dB SNR and -8 dB SNR, the recognition score of non-native consonants was greater than native consonants. Information transfer analysis revealed that the transfer of information was highest for consonant feature manner of articulation and lowest for voicing, across listening conditions for both native and non-native consonants. Conclusions: Recognition of native and non-native consonants were affected differently in the presence of speech-shaped noise among native speakers of Malayalam. In favourable listening condition, recognition of native consonants was better than non-native consonants. However, in challenging listening condition, non-native consonants were found to be recognised better than native consonants.
MeSH term(s)	Adolescent ; Analysis of Variance ; Auditory Perception ; Female ; Humans ; India ; Language ; Linguistics ; Male ; Noise ; Speech ; Speech Perception ; Young Adult
Language	English
Publishing date	2020-03-12
Publishing country	India
Document type	Journal Article
ZDB-ID	1482372-x
ISSN	1998-4030 ; 1463-1741
ISSN (online)	1998-4030
ISSN	1463-1741
DOI	10.4103/nah.NAH_14_18
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Article ; Online: Threshold Estimation Using "Chained Stimuli" for Cortical Auditory Evoked Potentials in Individuals With Normal Hearing and Hearing Impairment.

Kalaiah, Mohan Kumar / Poovaiah, Sanjana / Shastri, Usha

American journal of audiology

2019 Volume 28, Issue 2S, Page(s) 428–436

Abstract: Purpose We investigated the utility of chained stimuli for threshold estimation using cortical auditory evoked potentials (CAEPs) in individuals with normal hearing sensitivity and hearing loss. The effect of the order of frequency in chained stimuli on ... ...

Abstract	Purpose We investigated the utility of chained stimuli for threshold estimation using cortical auditory evoked potentials (CAEPs) in individuals with normal hearing sensitivity and hearing loss. The effect of the order of frequency in chained stimuli on CAEPs was also studied. Method Seventeen individuals with normal hearing and 17 individuals with mild to severe sensorineural hearing loss participated in the study. In individuals with normal hearing, CAEPs were recorded at 80 dB nHL for 4 chained stimuli with different orders of frequencies within them (Chained Stimuli 1 [CS1]: 500, 1000, 2000, 4000 Hz; Chained Stimuli 2: 4000, 2000, 1000, 500 Hz; Chained Stimuli 3: 500, 2000, 1000, 4000 Hz; Chained Stimuli 4: 4000, 1000, 2000, 500 Hz). CAEP threshold estimation was carried out using CS1 in both groups and was compared with behavioral pure-tone thresholds. Results CS1 elicited the largest amplitude responses at low and mid frequencies, whereas all 4 stimuli elicited similar amplitude responses at high frequencies. CAEP thresholds were generally within 10-20 dB above the participants' behavioral threshold in both groups. The difference between CAEP threshold and behavioral threshold was less for individuals with hearing loss compared to individuals with normal hearing. There was a significant positive correlation between CAEP threshold and behavioral threshold at all the frequencies. Conclusions CS1 could be used to elicit CAEPs for threshold estimation in adult participants with normal hearing and hearing loss of varied degrees with theoretically reduced testing time. The actual time reduction using chained stimuli and the correction factor to be applied to estimate behavioral threshold can be studied in future investigations.
MeSH term(s)	Acoustic Stimulation/methods ; Adolescent ; Adult ; Aged ; Auditory Threshold ; Case-Control Studies ; Evoked Potentials, Auditory/physiology ; Female ; Hearing Loss, Sensorineural/physiopathology ; Humans ; Male ; Middle Aged ; Young Adult
Language	English
Publishing date	2019-08-28
Publishing country	United States
Document type	Journal Article
ZDB-ID	1162315-9
ISSN	1558-9137 ; 1059-0889
ISSN (online)	1558-9137
ISSN	1059-0889
DOI	10.1044/2018_AJA-IND50-18-0090
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Article: Cortical Auditory Event Related Potentials (P300) for Frequency Changing Dynamic Tones.

Kalaiah, Mohan Kumar / Shastri, Usha

Journal of audiology & otology

2016 Volume 20, Issue 1, Page(s) 22–30

Abstract: Background and objectives: P300 has been studied with a variety of stimuli. However, the nature of P300 has not been investigated for deviant stimuli which change its characteristics from standard stimuli after a period of time from onset.: Subjects ... ...

Abstract	Background and objectives: P300 has been studied with a variety of stimuli. However, the nature of P300 has not been investigated for deviant stimuli which change its characteristics from standard stimuli after a period of time from onset. Subjects and methods: Nine young adults with normal hearing participated in the study. The P300 was elicited using an oddball paradigm, the probability of standard and deviant stimuli was 80% and 20% respectively. Six stimuli were used to elicit P300, it included two pure-tones (1,000 Hz and 2,000 Hz) and four tone-complexes (tones with frequency changes). Among these stimuli, 1,000 Hz tone served as standard while others served as deviant stimuli. The P300 was recorded in five separate blocks, with one of the deviant stimuli as target in each block. Electroencephalographic was recorded from electrode sites Fz, Cz, C3, C4, and Pz. Latency and amplitude of components of the cortical auditory evoked potentials were measured at Cz. Results: Waveforms obtained in the present study shows that, all the deviant stimuli elicited obligatory P1-N1-P2 for stimulus onset. 2,000 Hz deviant tone elicited P300 at a latency of 300 ms. While, tone-complexes elicited acoustic change complex (ACC) for frequency changes and finally elicited P300 at a latency of 600 ms. In addition, the results showed shorter latency and larger amplitude ACC and P300 for rising tone-complexes compared to falling tone-complexes. Conclusions: Tone-complexes elicited distinct waveforms compared to 2,000 Hz deviant tone. Rising tone-complexes which had an increase in frequency elicited shorter latency and larger amplitude responses, which could be attributed to perceptual bias for frequency changes.
Language	English
Publishing date	2016-04-21
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3018961-5
ISSN	2384-1710 ; 2384-1621
ISSN (online)	2384-1710
ISSN	2384-1621
DOI	10.7874/jao.2016.20.1.22
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Article ; Online: Vestibular evoked myogenic potentials in chronic renal disease.

Varghese, Shibi / Kumar, Kaushlendra / Kalaiah, Mohan Kumar / Shastri, Usha / Ebenezer, Anupriya / Prabhu, Mayoor Vasant

Acta oto-laryngologica

2021 Volume 141, Issue 10, Page(s) 925–928

Abstract: Background: There is limited evidence to provide an insight on the VEMP characteristics to explain the association between chronic renal disease (CRD) and its effect on otolith structures.: Objective: To compare the otolithic function of individuals ... ...

Abstract	Background: There is limited evidence to provide an insight on the VEMP characteristics to explain the association between chronic renal disease (CRD) and its effect on otolith structures. Objective: To compare the otolithic function of individuals with CRD and individuals with no known CRD. To investigate the relationship between disease duration and VEMP and creatine level and VEMP among individuals with CRD. Method: A cross-sectional study design using convenient sampling method was adapted for the present study. A total of 50 adults aged between 40 and 60 years participated in the study. Group 1 included 25 individuals with CRD undergoing hemodialysis and Group 2 included 25 individuals with no known CRD. cVEMP and oVEMP were recorded from participants in both groups. Results: cVEMP and oVEMP was absent in 28% and 44% of individuals with CRD respectively, while, both VEMPs were present among all participants in group 2. Further, peak-to-peak amplitude of VEMP was reduced in individuals with CRD suggesting abnormal otolith function. In addition, a negative correlation was found between disease duration and the peak-to-peak amplitude of VEMP. Conclusion: The abnormal VEMP findings in individuals with CRD shows presence of otolithic dysfunction along with amplitude is found to decrease with an increase in the disease duration.
MeSH term(s)	Adult ; Case-Control Studies ; Cross-Sectional Studies ; Female ; Humans ; Male ; Middle Aged ; Renal Insufficiency, Chronic/physiopathology ; Vestibular Evoked Myogenic Potentials/physiology
Language	English
Publishing date	2021-10-08
Publishing country	England
Document type	Journal Article
ISSN	1651-2251
ISSN (online)	1651-2251
DOI	10.1080/00016489.2021.1983212
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