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Infant speech perception

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https://www.readbyqxmd.com/read/28712970/cortical-responses-to-tone-and-phoneme-mismatch-as-a-predictor-of-dyslexia-a-systematic-review
#1
Susanne Volkmer, Gerd Schulte-Körne
Evidence from event-related-potential (ERP) studies has repeatedly shown differences in the perception and processing of auditory stimuli in children with dyslexia compared to control children. The mismatch negativity (MMN) - an ERP component reflecting passive auditory change detection ability - has been found to be reduced, not only in children with a diagnosis of dyslexia, but also in infants and preschool children at risk of developing dyslexia. However, the results are controversial due to the different methods, age of the children and stimuli used...
July 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28688078/differences-in-neural-correlates-of-speech-perception-in-3-month-olds-at-high-and-low-risk-for-autism-spectrum-disorder
#2
Laura A Edwards, Jennifer B Wagner, Helen Tager-Flusberg, Charles A Nelson
In this study, we investigated neural precursors of language acquisition as potential endophenotypes of autism spectrum disorder (ASD) in 3-month-old infants at high and low familial ASD risk. Infants were imaged using functional near-infrared spectroscopy while they listened to auditory stimuli containing syllable repetitions; their neural responses were analyzed over left and right temporal regions. While female low risk infants showed initial neural activation that decreased over exposure to repetition-based stimuli, potentially indicating a habituation response to repetition in speech, female high risk infants showed no changes in neural activity over exposure...
July 7, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28680487/auditory-speech-perception-development-in-relation-to-patient-s-age-with-cochlear-implant
#3
Grace Kelly Seixas Ciscare, Erika Barioni Mantello, Carla Aparecida Urzedo Fortunato-Queiroz, Miguel Angelo Hyppolito, Ana Cláudia Mirândola Barbosa Dos Reis
Introduction  A cochlear implant in adolescent patients with pre-lingual deafness is still a debatable issue. Objective  The objective of this study is to analyze and compare the development of auditory speech perception in children with pre-lingual auditory impairment submitted to cochlear implant, in different age groups in the first year after implantation. Method  This is a retrospective study, documentary research, in which we analyzed 78 reports of children with severe bilateral sensorineural hearing loss, unilateral cochlear implant users of both sexes...
July 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28674020/brain-regions-and-functional-interactions-supporting-early-word-recognition-in-the-face-of-input-variability
#4
Silvia Benavides-Varela, Roma Siugzdaite, David Maximiliano Gómez, Francesco Macagno, Luigi Cattarossi, Jacques Mehler
Perception and cognition in infants have been traditionally investigated using habituation paradigms, assuming that babies' memories in laboratory contexts are best constructed after numerous repetitions of the very same stimulus in the absence of interference. A crucial, yet open, question regards how babies deal with stimuli experienced in a fashion similar to everyday learning situations-namely, in the presence of interfering stimuli. To address this question, we used functional near-infrared spectroscopy to test 40 healthy newborns on their ability to encode words presented in concomitance with other words...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28662419/perceptual-statistical-learning-over-one-week-in-child-speech-production
#5
Peter T Richtsmeier, Lisa Goffman
What cognitive mechanisms account for the trajectory of speech sound development, in particular, gradually increasing accuracy during childhood? An intriguing potential contributor is statistical learning, a type of learning that has been studied frequently in infant perception but less often in child speech production. To assess the relevance of statistical learning to developing speech accuracy, we carried out a statistical learning experiment with four- and five-year-olds in which statistical learning was examined over one week...
June 17, 2017: Journal of Communication Disorders
https://www.readbyqxmd.com/read/28621001/early-vocabulary-development-in-children-with-bilateral-cochlear-implants
#6
Taina Välimaa, Sari Kunnari, Päivi Laukkanen-Nevala, Eila Lonka
BACKGROUND: Children with unilateral cochlear implants (CIs) may have delayed vocabulary development for an extended period after implantation. Bilateral cochlear implantation is reported to be associated with improved sound localization and enhanced speech perception in noise. This study proposed that bilateral implantation might also promote early vocabulary development. Knowledge regarding vocabulary growth and composition in children with bilateral CIs and factors associated with it may lead to improvements in the content of early speech and language intervention and family counselling...
June 16, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28604578/long-term-outcomes-of-cochlear-implantation-in-children-with-congenital-cytomegalovirus-infection
#7
Haruo Yoshida, Haruo Takahashi, Yukihiko Kanda, Kyoko Kitaoka, Minoru Hara
OBJECTIVE: To investigate the role of the developmental delay often observed in children with congenital cytomegalovirus (CMV) infection on the improvement of language understanding after cochlear implantation (CI). STUDY DESIGN: Retrospective chart review. PATIENTS: Sixteen children with severe and/or profound hearing loss due to congenital CMV infection (CMV group) and 107 congenitally deaf children (168 ears) without CMV infection as the cause of deafness (non-CMV group)...
August 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28599541/prosodic-exaggeration-within-infant-directed-speech-consequences-for-vowel-learnability
#8
Frans Adriaans, Daniel Swingley
Perceptual experiments with infants show that they adapt their perception of speech sounds toward the categories of the native language. How do infants learn these categories? For the most part, acoustic analyses of natural infant-directed speech have suggested that phonetic categories are not presented to learners as separable clusters of sounds in acoustic space. As a step toward explaining how infants begin to solve this problem, the current study proposes that the exaggerated prosody characteristic of infant-directed speech may highlight for infants certain speech-sound tokens that collectively form more readily identifiable categories...
May 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28585512/auditory-visual-speech-perception-in-three-and-four-year-olds-and-its-relationship-to-perceptual-attunement-and-receptive-vocabulary
#9
Doğu Erdener, Denis Burnham
Despite the body of research on auditory-visual speech perception in infants and schoolchildren, development in the early childhood period remains relatively uncharted. In this study, English-speaking children between three and four years of age were investigated for: (i) the development of visual speech perception - lip-reading and visual influence in auditory-visual integration; (ii) the development of auditory speech perception and native language perceptual attunement; and (iii) the relationship between these and a language skill relevant at this age, receptive vocabulary...
June 6, 2017: Journal of Child Language
https://www.readbyqxmd.com/read/28467888/auditory-object-perception-a-neurobiological-model-and-prospective-review
#10
Julie A Brefczynski-Lewis, James W Lewis
Interaction with the world is a multisensory experience, but most of what is known about the neural correlates of perception comes from studying vision. Auditory inputs enter cortex with its own set of unique qualities, and leads to use in oral communication, speech, music, and the understanding of emotional and intentional states of others, all of which are central to the human experience. To better understand how the auditory system develops, recovers after injury, and how it may have transitioned in its functions over the course of hominin evolution, advances are needed in models of how the human brain is organized to process real-world natural sounds and "auditory objects"...
April 30, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28443053/perceptual-improvement-of-lexical-tones-in-infants-effects-of-tone-language-experience
#11
Feng-Ming Tsao
To learn words in a tonal language, tone-language learners should not only develop better abilities for perceiving consonants and vowels, but also for lexical tones. The divergent trend of enhancing sensitivity to native phonetic contrasts and reduced sensitivity to non-native phonetic contrast is theoretically essential to evaluate effects of listening to an ambient language on speech perception development. The loss of sensitivity in discriminating lexical tones among non-tonal language-learning infants was apparent between 6 and 12 months of age, but only few studies examined trends of differentiating native lexical tones in infancy...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28421015/music-and-its-inductive-power-a-psychobiological-and-evolutionary-approach-to-musical-emotions
#12
Mark Reybrouck, Tuomas Eerola
The aim of this contribution is to broaden the concept of musical meaning from an abstract and emotionally neutral cognitive representation to an emotion-integrating description that is related to the evolutionary approach to music. Starting from the dispositional machinery for dealing with music as a temporal and sounding phenomenon, musical emotions are considered as adaptive responses to be aroused in human beings as the product of neural structures that are specialized for their processing. A theoretical and empirical background is provided in order to bring together the findings of music and emotion studies and the evolutionary approach to musical meaning...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28395548/incorporating-ceiling-effects-during-analysis-of-speech-perception-data-from-a-paediatric-cochlear-implant-cohort
#13
Hanneke Bruijnzeel, Guido Cattani, Inge Stegeman, Vedat Topsakal, Wilko Grolman
OBJECTIVE: To compare speech perception between children with a different age at cochlear implantation. DESIGN: We evaluated speech perception by comparing consonant-vowel-consonant (auditory) (CVC(A)) scores at five-year follow-up of children implanted between 1997 and 2010. The proportion of children from each age-at-implantation group reaching the 95%CI of CVC(A) ceiling scores (>95%) was calculated to identify speech perception differences masked by ceiling effects...
April 10, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28367052/articulating-what-infants-attune-to-in-native-speech
#14
Catherine T Best, Louis M Goldstein, Hosung Nam, Michael D Tyler
To become language users, infants must embrace the integrality of speech perception and production. That they do so, and quite rapidly, is implied by the native-language attunement they achieve in each domain by 6-12 months. Yet research has most often addressed one or the other domain, rarely how they interrelate. Moreover, mainstream assumptions that perception relies on acoustic patterns whereas production involves motor patterns entail that the infant would have to translate incommensurable information to grasp the perception-production relationship...
October 1, 2016: Ecological Psychology: a Publication of the International Society for Ecological Psychology
https://www.readbyqxmd.com/read/28338496/infants-and-adults-use-of-temporal-cues-in-consonant-discrimination
#15
Laurianne Cabrera, Lynne Werner
OBJECTIVES: Adults can use slow temporal envelope cues, or amplitude modulation (AM), to identify speech sounds in quiet. Faster AM cues and the temporal fine structure, or frequency modulation (FM), play a more important role in noise. This study assessed whether fast and slow temporal modulation cues play a similar role in infants' speech perception by comparing the ability of normal-hearing 3-month-olds and adults to use slow temporal envelope cues in discriminating consonants contrasts...
July 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28337157/pitch-perception-in-the-first-year-of-life-a-comparison-of-lexical-tones-and-musical-pitch
#16
Ao Chen, Catherine J Stevens, René Kager
Pitch variation is pervasive in speech, regardless of the language to which infants are exposed. Lexical tone is influenced by general sensitivity to pitch. We examined whether the development in lexical tone perception may develop in parallel with perception of pitch in other cognitive domains namely music. Using a visual fixation paradigm, 100 and one 4- and 12-month-old Dutch infants were tested on their discrimination of Chinese rising and dipping lexical tones as well as comparable three-note musical pitch contours...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28335558/modeling-the-development-of-audiovisual-cue-integration-in-speech-perception
#17
Laura M Getz, Elke R Nordeen, Sarah C Vrabic, Joseph C Toscano
Adult speech perception is generally enhanced when information is provided from multiple modalities. In contrast, infants do not appear to benefit from combining auditory and visual speech information early in development. This is true despite the fact that both modalities are important to speech comprehension even at early stages of language acquisition. How then do listeners learn how to process auditory and visual information as part of a unified signal? In the auditory domain, statistical learning processes provide an excellent mechanism for acquiring phonological categories...
March 21, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28291832/electrophysiological-and-hemodynamic-mismatch-responses-in-rats-listening-to-human-speech-syllables
#18
Mahdi Mahmoudzadeh, Ghislaine Dehaene-Lambertz, Fabrice Wallois
Speech is a complex auditory stimulus which is processed according to several time-scales. Whereas consonant discrimination is required to resolve rapid acoustic events, voice perception relies on slower cues. Humans, right from preterm ages, are particularly efficient to encode temporal cues. To compare the capacities of preterms to those observed in other mammals, we tested anesthetized adult rats by using exactly the same paradigm as that used in preterm neonates. We simultaneously recorded neural (using ECoG) and hemodynamic responses (using fNIRS) to series of human speech syllables and investigated the brain response to a change of consonant (ba vs...
2017: PloS One
https://www.readbyqxmd.com/read/28124795/the-role-of-auditory-and-visual-speech-in-word-learning-at-18%C3%A2-months-and-in-adulthood
#19
Mélanie Havy, Afra Foroud, Laurel Fais, Janet F Werker
Visual information influences speech perception in both infants and adults. It is still unknown whether lexical representations are multisensory. To address this question, we exposed 18-month-old infants (n = 32) and adults (n = 32) to new word-object pairings: Participants either heard the acoustic form of the words or saw the talking face in silence. They were then tested on recognition in the same or the other modality. Both 18-month-old infants and adults learned the lexical mappings when the words were presented auditorily and recognized the mapping at test when the word was presented in either modality, but only adults learned new words in a visual-only presentation...
January 26, 2017: Child Development
https://www.readbyqxmd.com/read/28087242/brains-for-birds-and-babies-neural-parallels-between-birdsong-and-speech-acquisition
#20
REVIEW
Jonathan Prather, Kazuo Okanoya, Johan J Bolhuis
Language as a computational cognitive mechanism appears to be unique to the human species. However, there are remarkable behavioral similarities between song learning in songbirds and speech acquisition in human infants that are absent in non-human primates. Here we review important neural parallels between birdsong and speech. In both cases there are separate but continually interacting neural networks that underlie vocal production, sensorimotor learning, and auditory perception and memory. As in the case of human speech, neural activity related to birdsong learning is lateralized, and mirror neurons linking perception and performance may contribute to sensorimotor learning...
January 10, 2017: Neuroscience and Biobehavioral Reviews
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