scholarly journals Neural indicators of articulator-specific sensorimotor influences on infant speech perception

2021 ◽  
Vol 118 (20) ◽  
pp. e2025043118
Author(s):  
Dawoon Choi ◽  
Ghislaine Dehaene-Lambertz ◽  
Marcela Peña ◽  
Janet F. Werker
Keyword(s):  
Speech Perception ◽  
Event Related Potentials ◽  
Speech Discrimination ◽  
Phonetic Category ◽  
Common View ◽  
Oral Motor ◽  
Auditory Speech ◽  
Young Infants ◽  
Related Potentials ◽  
Phonetic Contrasts

While there is increasing acceptance that even young infants detect correspondences between heard and seen speech, the common view is that oral-motor movements related to speech production cannot influence speech perception until infants begin to babble or speak. We investigated the extent of multimodal speech influences on auditory speech perception in prebabbling infants who have limited speech-like oral-motor repertoires. We used event-related potentials (ERPs) to examine how sensorimotor influences to the infant’s own articulatory movements impact auditory speech perception in 3-mo-old infants. In experiment 1, there were ERP discriminative responses to phonetic category changes across two phonetic contrasts (bilabial–dental /ba/-/ɗa/; dental–retroflex /ɗa/-/ɖa/) in a mismatch paradigm, indicating that infants auditorily discriminated both contrasts. In experiment 2, inhibiting infants’ own tongue-tip movements had a disruptive influence on the early ERP discriminative response to the /ɗa/-/ɖa/ contrast only. The same articulatory inhibition had contrasting effects on the perception of the /ba/-/ɗa/ contrast, which requires different articulators (the lips vs. the tongue) during production, and the /ɗa/-/ɖa/ contrast, whereby both phones require tongue-tip movement as a place of articulation. This articulatory distinction between the two contrasts plausibly accounts for the distinct influence of tongue-tip suppression on the neural responses to phonetic category change perception in definitively prebabbling, 3-mo-old, infants. The results showing a specificity in the relation between oral-motor inhibition and phonetic speech discrimination suggest a surprisingly early mapping between auditory and motor speech representation already in prebabbling infants.

scholarly journals Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity

2010 ◽  
Vol 10 ◽  
pp. 329-339 ◽  
Author(s):  
Torsten Rahne ◽  
Michael Ziese ◽  
Dorothea Rostalski ◽  
Roland Mühler
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Mismatch Negativity ◽  
Speech Intelligibility ◽  
Event Related Potentials ◽  
Normal Hearing ◽  
Discrimination Test ◽  
Speech Database ◽  
Automated Speech Recognition ◽  
Related Potentials

This paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The logatome discrimination task is based on the presentation of 100 logatome pairs (i.e., nonsense syllables) with balanced representations of alternating “vowel-replacement” and “consonant-replacement” paradigms in order to assess phoneme confusions. Thirteen adult normal hearing listeners and eight adult CI users, including both good and poor performers, were included in the study and completed the test after their speech intelligibility abilities were evaluated with an established sentence test in noise. Furthermore, the discrimination abilities were measured electrophysiologically by recording the mismatch negativity (MMN) as a component of auditory event-related potentials. The results show a clear MMN response only for normal hearing listeners and CI users with good performance, correlating with their logatome discrimination abilities. Higher discrimination scores for vowel-replacement paradigms than for the consonant-replacement paradigms were found. We conclude that the logatome discrimination test is well suited to monitor the speech perception skills of CI users. Due to the large number of available spoken logatome items, the Oldenburg Logatome Corpus appears to provide a useful and powerful basis for further development of speech perception tests for CI users.

scholarly journals Brain event-related potentials to phoneme contrasts and their correlation to reading skills in school-age children

2017 ◽  
Vol 42 (3) ◽  
pp. 357-372 ◽  
Author(s):  
Jarmo Hämäläinen ◽  
Nicole Landi ◽  
Otto Loberg ◽  
Kaisa Lohvansuu ◽  
Kenneth Pugh ◽  
...  
Keyword(s):  
Speech Perception ◽  
Phonological Processing ◽  
Reading Skills ◽  
Speech Sound ◽  
Event Related Potentials ◽  
School Age Children ◽  
School Age ◽  
The Us ◽  
Related Potentials ◽  
Us Children

Development of reading skills has been shown to be tightly linked to phonological processing skills and to some extent to speech perception abilities. Although speech perception is also known to play a role in reading development, it is not clear which processes underlie this connection. Using event-related potentials (ERPs) we investigated the speech processing mechanisms for common and uncommon sound contrasts (/ba/-/da/-/ga/ and /ata/-/at: a/) with respect to the native language of school-age children in Finland and the US. In addition, a comprehensive behavioral test battery of reading and phonological processing was administered. ERPs revealed that the children could discriminate between the speech sound contrasts (place of articulation and phoneme length) regardless of their native language. No differences emerged between the Finnish and US children in their change detection responses. The brain responses to the phoneme length contrast, however, correlated robustly with reading scores in the US children, with larger responses being linked to poorer reading skills. Finnish children also showed correlations between the reading and phonological measures and ERP responses, but the pattern of results was not as clear as for the US children. The results indicate that speech perception is linked to reading skills and this link is more robust for uncommon speech sound contrasts.

Event-related potentials for better speech perception in noise by cochlear implant users

2014 ◽  
Vol 316 ◽  
pp. 110-121 ◽  
Author(s):  
Takahiro Soshi ◽  
Satoko Hisanaga ◽  
Narihiro Kodama ◽  
Yori Kanekama ◽  
Yasuhiro Samejima ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Event Related Potentials ◽  
Speech Perception In Noise ◽  
Related Potentials

Effects of Stimulus Level on Cortical Auditory Event-Related Potentials Evoked by Speech

2007 ◽  
Vol 18 (02) ◽  
pp. 107-116 ◽  
Author(s):  
Angela C. Garinis ◽  
Barbara K. Cone-Wesson
Keyword(s):  
Cognitive Processing ◽  
Event Related Potentials ◽  
Stimulus Level ◽  
P300 Amplitude ◽  
P300 Latency ◽  
Active Listening ◽  
Speech Discrimination ◽  
Auditory Event ◽  
Related Potentials ◽  
Auditory Event Related Potentials

The effect of stimulus level on cortical auditory event-related potentials (ERPs) evoked by consonant-vowel (CV) contrasts, /ta/, /da/, and /sa/, was investigated. The lowest level at which CVs were discriminated with >95% accuracy was determined for 15 normally hearing adults. ERPs were obtained at 0, 20, and 40 dB SL above this level during active listening. ERP latencies decreased as level increased. P300 amplitude did not vary with CV level or type; however, obligatory ERPs decreased in amplitude as level increased. The effect of level on P300 latency is likely related to the cognitive processing speed needed to perform speech discrimination. Obligatory ERP amplitude results suggest that attention demands vary with level during discrimination of speech features. Se investigó el efecto del nivel del estímulo en potenciales auditivos corticales relacionados con el evento (ERP) evocados por contrastes consonante-vocal (CV), /ta/, /da/ y /sa/. Se determinó en 15 adultos normoyentes el nivel menor al que se discriminaron los CV con > 95% de exactitud. Los ERP fueron obtenidos a 0, 20 y 40 dB SL por encima de este nivel durante audición activa. Las latencias de los ERP disminuyeron conforme los niveles aumentaron. La amplitud de la P300 no varió con el nivel o el tipo de los CV; sin embargo, las amplitudes siempre bajaron conforme subió el nivel. El efecto del nivel sobre las P300 parece estar relacionado con la velocidad de procesamiento cognitivo necesaria para realizar discriminación del lenguaje. Los resultados obligatorios de la amplitud de los ERP sugieren que las demandas de atención varían durante la discriminación de rasgos del lenguaje.

An Electrophysiological Study of Infants' Sensitivity to the Sound Patterns of English Speech

1998 ◽  
Vol 41 (4) ◽  
pp. 874-886 ◽  
Author(s):  
Valerie L. Shafer ◽  
David W. Shucard ◽  
Janet L. Shucard ◽  
LouAnn Gerken
Keyword(s):  
Speech Perception ◽  
Native Language ◽  
Electrophysiological Study ◽  
Event Related Potentials ◽  
Lower Amplitude ◽  
Related Potentials ◽  
Sound Patterns ◽  
Tone Probe

The study explores 10- to 11-month-old infants' sensitivity to the phonological characteristics of their native language. Event-related potentials (ERPs) were obtained for tones that were superimposed on two versions of a story: an Unmodified version containing normal English function morphemes, and a Modified version in which the prosodic and segmental properties of a subset of function morphemes were changed to make them atypical. The 11-month-olds exhibited significantly lower amplitude ERPs to the tones during the Modified story than to the Unmodified story, whereas the 10-month-olds showed no differences. These results suggest that the 11-month-olds discriminated the two versions of the story based on their representations of the phonological properties of English. Further, the tone-probe ERP method can successfully be used to study the development of speech perception in the pre-linguistic infant.

Event-Related Potentials Elicited by Phonetic Errors Differentiate Children With Speech Sound Disorder and Typically Developing Peers

2021 ◽  
pp. 1-17
Author(s):  
Katelyn L. Gerwin ◽  
Françoise Brosseau-Lapré ◽  
Christine Weber
Keyword(s):  
Speech Perception ◽  
Young Children ◽  
Speech Sound ◽  
Event Related Potentials ◽  
Speech Sound Disorder ◽  
N400 Effect ◽  
Judgment Accuracy ◽  
Lexical Meaning ◽  
Related Potentials ◽  
Phonetic Errors

Purpose A growing body of research suggests that a deficit in speech perception abilities contributes to the development of speech sound disorder (SSD). However, little work has been done to characterize the neurophysiological processes indexing speech perception deficits in this population. The primary aim of this study was to compare the neural activity underlying speech perception in young children with SSD and with typical development (TD). Method Twenty-eight children ages 4;1–6;0 (years;months) participated in this study. Event-related potentials (ERPs) were recorded while children completed a speech perception task that included phonetic (speech sound) and lexical (meaning) matches and mismatches. Groups were compared on their judgment accuracy for matches and mismatches as well as the mean amplitude of the phonological mapping negativity (PMN) and N400 ERP components. Results Children with SSD demonstrated lower judgment accuracy across the phonetic and lexical conditions compared to peers with TD. The ERPs elicited by lexical matches and mismatches did not distinguish the groups. However, in the phonetic condition, the SSD group exhibited a more consistent left-lateralized PMN effect and a delayed N400 effect over frontal sites compared to the TD group. Conclusions These findings provide some of the first evidence of a delay in the neurophysiological processing of phonological information for young children with SSD compared to their peers with TD. This delay was not present for the processing of lexical information, indicating a unique difference between children with SSD and with TD related to speech perception of phonetic errors. Supplemental Material https://doi.org/10.23641/asha.16915579

Speech Perception and Cortical Event Related Potentials in Children with Auditory Neuropathy

2002 ◽  
Vol 23 (3) ◽  
pp. 239-253 ◽  
Author(s):  
Gary Rance ◽  
Barbara Cone-Wesson ◽  
Julia Wunderlich ◽  
Richard Dowell
Keyword(s):  
Speech Perception ◽  
Event Related Potentials ◽  
Auditory Neuropathy ◽  
Related Potentials
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