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Infant speech perception

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https://www.readbyqxmd.com/read/29210952/survey-of-the-american-neurotology-society-on-cochlear-implantation-part-1-candidacy-assessment-and-expanding-indications
#1
Matthew L Carlson, Douglas P Sladen, Richard K Gurgel, Nicole M Tombers, Christine M Lohse, Colin L Driscoll
OBJECTIVE: To examine practice variance of cochlear implant candidacy assessment and off-label indications across centers in the United States. METHODS: Cross-sectional survey of the American Neurotology Society (ANS). RESULTS: A total of 81 surveys were returned from ANS members who report regular involvement in cochlear implant care. Overall there was a broad distribution in age and clinical experience, with most respondents reporting ACGME accreditation in neurotology and employment at an academic center...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29157996/longitudinal-interactions-between-brain-and-cognitive-measures-on-reading-development-from-6-months-to-14-years
#2
Kaisa Lohvansuu, Jarmo A Hämäläinen, Leena Ervast, Heikki Lyytinen, Paavo H T Leppänen
Dyslexia is a neurobiological disorder impairing learning to read. Brain responses of infants at genetic risk for dyslexia are abnormal already at birth, and associations from infant speech perception to preschool cognitive skills and reading in early school years have been documented, but there are no studies showing predicting power until adolescence. Here we show that in at-risk infants, brain activation to pseudowords at left hemisphere predicts 44% of reading speed at 14 years, and even improves the prediction after taking into account neurocognitive preschool measures of letter naming, phonology, and verbal short-term memory...
November 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29156241/pre-linguistic-segmentation-of-speech-into-syllable-like-units
#3
Okko Räsänen, Gabriel Doyle, Michael C Frank
Syllables are often considered to be central to infant and adult speech perception. Many theories and behavioral studies on early language acquisition are also based on syllable-level representations of spoken language. There is little clarity, however, on what sort of pre-linguistic "syllable" would actually be accessible to an infant with no phonological or lexical knowledge. Anchored by the notion that syllables are organized around particularly sonorous (audible) speech sounds, the present study investigates the feasibility of speech segmentation into syllable-like chunks without any a priori linguistic knowledge...
November 17, 2017: Cognition
https://www.readbyqxmd.com/read/28970650/the-organization-and-reorganization-of-audiovisual-speech-perception-in-the-first-year-of-life
#4
D Kyle Danielson, Alison G Bruderer, Padmapriya Kandhadai, Eric Vatikiotis-Bateson, Janet F Werker
The period between six and 12 months is a sensitive period for language learning during which infants undergo auditory perceptual attunement, and recent results indicate that this sensitive period may exist across sensory modalities. We tested infants at three stages of perceptual attunement (six, nine, and 11 months) to determine 1) whether they were sensitive to the congruence between heard and seen speech stimuli in an unfamiliar language, and 2) whether familiarization with congruent audiovisual speech could boost subsequent non-native auditory discrimination...
April 2017: Cognitive Development
https://www.readbyqxmd.com/read/28955278/bilingual-infants-demonstrate-perceptual-flexibility-in-phoneme-discrimination-but-perceptual-constraint-in-face-discrimination
#5
Leher Singh, Darrell Loh, Naiqi G Xiao
Perceptual narrowing is a highly significant development associated with the first year of life. It conventionally refers to an orientation toward nativeness whereby infant's perceptual sensitivities begin to align with the phonetic properties of their native environment. Nativeness effects, such as perceptual narrowing, have been observed in several domains, most notably, in face discrimination within other-race faces and speech discrimination of non-native phonemes. Thus, far, nativeness effects in the face and speech perception have been theoretically linked, but have mostly been investigated independently...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28937300/infants-processing-of-prosodic-cues-electrophysiological-evidence-for-boundary-perception-beyond-pause-detection
#6
Julia Holzgrefe-Lang, Caroline Wellmann, Barbara Höhle, Isabell Wartenburger
Infants as young as six months are sensitive to prosodic phrase boundaries marked by three acoustic cues: pitch change, final lengthening, and pause. Behavioral studies suggest that a language-specific weighting of these cues develops during the first year of life; recent work on German revealed that eight-month-olds, unlike six-month-olds, are capable of perceiving a prosodic boundary on the basis of pitch change and final lengthening only. The present study uses Event-Related Potentials (ERPs) to investigate the neuro-cognitive development of prosodic cue perception in German-learning infants...
September 1, 2017: Language and Speech
https://www.readbyqxmd.com/read/28712970/cortical-responses-to-tone-and-phoneme-mismatch-as-a-predictor-of-dyslexia-a-systematic-review
#7
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
#8
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
#9
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
#10
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
#11
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...
July 2017: Journal of Communication Disorders
https://www.readbyqxmd.com/read/28621001/early-vocabulary-development-in-children-with-bilateral-cochlear-implants
#12
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
#13
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
#14
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
#15
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
#16
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"...
October 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28443053/perceptual-improvement-of-lexical-tones-in-infants-effects-of-tone-language-experience
#17
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
#18
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
#19
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
#20
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
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