A5072090968- Hearing Loss and Rehabilitation
- Neuroscience and Music Perception
- Language Development and Disorders
- Speech and Audio Processing
- Noise Effects and Management
- Phonetics and Phonology Research
- Multisensory perception and integration
- Reading and Literacy Development
- Hearing, Cochlea, Tinnitus, Genetics
- Hearing Impairment and Communication
- Child and Animal Learning Development
- Color perception and design
- Infant Health and Development
- Early Childhood Education and Development
- Sensory Analysis and Statistical Methods
- Diverse Interdisciplinary Research Innovations
- Analog and Mixed-Signal Circuit Design
- Categorization, perception, and language
- Tactile and Sensory Interactions
- Acoustic Wave Phenomena Research
- EEG and Brain-Computer Interfaces
Centre National de la Recherche Scientifique
2011-2025
Université Paris Cité
2014-2025
Sorbonne Paris Cité
2023-2025
Délégation Paris 5
2010-2023
Centre Neurosciences intégratives et Cognition
2019-2023
Institut de Neurosciences Cognitives et Intégratives d’Aquitaine
2021-2023
University of East London
2022
Centre de recherche cerveau et cognition
2022
Université Libre de Bruxelles
2022
University College London
2018-2021
Much of our basic understanding cognitive and social processes in infancy relies on measures looking time, specifically infants’ visual preference for a novel or familiar stimulus. However, despite being the foundation many behavioral tasks infant research, determinants preferences are poorly understood, differences expression can be difficult to interpret. In this large-scale study, we test predictions from Hunter Ames model infants' preferences. We investigate effects three factors...
Speech perception is constrained by auditory processing. Although at birth infants have an immature system and limited language experience, they show remarkable speech skills. To assess neonates' ability to process the complex acoustic cues of speech, we combined near-infrared spectroscopy (NIRS) electroencephalography (EEG) measure brain responses syllables differing in consonants. The were presented three conditions preserving (i) original temporal modulations [both amplitude modulation...
The ability to detect amplitude modulation (AM) is essential distinguish the spectro-temporal features of speech from those a competing masker. Previous work shows that AM sensitivity improves until 10 years age. This may relate development sensory factors (tuning filters, susceptibility masking) or changes in processing efficiency (reduction internal noise, optimization decision strategies). To disentangle these hypotheses, three groups children (5-11 years) and one young adults completed...
Temporal modulations, especially amplitude modulations (AM), play a fundamental role in speech perception noisy environments, as highlighted by psychoacoustic research. However, the mechanisms underlying AM processing and its contribution to noise remain unclear. The present study combined both behavioral psychophysics electroencephalography (EEG) measures investigate relationship of consonants for young adults with normal hearing. Participants completed sensitivity, i.e., detection...
The role of spectro-temporal modulation cues in conveying tonal information for lexical tones was assessed native-Mandarin and native-French adult listeners using a lexical-tone discrimination task. fundamental frequency (F0) Thai either degraded an 8-band vocoder that reduced fine spectral details frequency-modulation cues, or extracted used to modulate the F0 click trains. Mandarin scored lower than French vocoded tones. For trains, outperformed listeners. These preliminary results suggest...
Young deaf children using a cochlear implant develop speech abilities on the basis of temporal-envelope signals distributed over limited number frequency bands. A Headturn Preference Procedure was used to measure looking times in 6-month-old, normal-hearing infants during presentation repeating or alternating sequences composed different tokens /aba/and /apa/ processed retain envelope information below 64 Hz while degrading temporal fine structure cues. Infants attended longer sequences,...
Objectives: Adults can use slow temporal envelope cues, or amplitude modulation (AM), to identify speech sounds in quiet. Faster AM cues and the fine structure, frequency (FM), play a more important role noise. This study assessed whether fast similar infants’ perception by comparing ability of normal-hearing 3-month-olds adults discriminating consonants contrasts. Design: English consonant–vowel syllables differing voicing place articulation were processed 2 tone-excited vocoders replace...
The capacity of 6-month-old infants to discriminate a voicing contrast (/aba/-/apa/) on the basis amplitude modulation (AM) cues and frequency (FM) was evaluated.Several vocoded speech conditions were designed either degrade FM in 4 or 32 bands AM bands. Infants familiarized stimuli for period 1 2 min. Vocoded discrimination assessed using head-turn preference procedure.Infants discriminated /aba/ from /apa/ each condition; however, familiarization time found influence strongly infants'...
This study assessed the role of spectro-temporal modulation cues in discrimination 2 phonetic contrasts (voicing and place) for young infants.A visual-habituation procedure was used to assess ability French-learning 6-month-old infants with normal hearing discriminate voiced versus unvoiced (/aba/-/apa/) labial dental (/aba/-/ada/) stop consonants. The stimuli were processed by tone-excited vocoders degrade frequency-modulation while preserving: (a) amplitude-modulation (AM) within 32...
Two experiments were performed to better understand on- and off-frequency modulation masking in normal-hearing school-age children adults. Experiment 1 estimated thresholds for detecting 16-, 64- or 256-Hz sinusoidal amplitude (AM) imposed on a 4300-Hz pure tone. Thresholds tended improve with age, larger developmental effects AM than 16-Hz AM. Detection of was also measured 1000-Hz masker tone carrying Off-frequency younger older adults when the gated target, but not continuous. 2 detection...
Introduction The auditory system encodes the phonetic features of languages by processing spectro-temporal modulations in speech, which can be described at two time scales: relatively slow amplitude variations over (AM, further distinguished into slowest <8–16 Hz and faster components 16–500 Hz), frequency (FM, oscillating higher rates about 600–10 kHz). While adults require only AM cues to identify discriminate speech sounds, infants have been shown also (>8–16 Hz) for similar...
Speech perception is constrained by auditory processing. Although at birth, infants have an immature system and limited language experience, they show remarkable speech skills. To assess neonates’ ability to process the complex acoustic cues of speech, we combined near-infrared spectroscopy (NIRS) electroencephalography (EEG) measure brain responses syllables differing in consonants. The were presented three conditions preserving (i) original temporal modulations (both amplitude frequency...
The processing of auditory temporal information is important for the extraction voice pitch, linguistic information, as well overall structure speech. However, many aspects its early development remain poorly understood. This paper reviews during first year life when infants are acquiring their native language. First, potential mechanisms neural immaturity discussed in context neurophysiological studies. Next, what known about infant capabilities considered with a focus on psychophysical...
Mandarin-speaking adults using cochlear implants (CI) experience more difficulties in perceiving lexical tones than consonants. This problem may result from the fact that CIs provide relatively sufficient temporal envelope information for consonant perception quiet environments, but do not convey fine spectro-temporal considered to be necessary accurate pitch perception. Another possibility is Mandarin speakers with post-lingual hearing loss have developed language-specific use of these...
Consonants facilitate lexical processing across many languages, including French. This study investigates whether acoustic degradation affects this phonological bias in an auditory decision task. French words were processed using eight-band vocoder, degrading their frequency modulations (FM) while preserving original amplitude (AM). Adult natives presented with these words, preceded by similarly pseudoword primes sharing vowels, consonants, or neither. Results reveal a consonant the...
The amplitude modulation following response (AMFR) is the steady-state auditory signaling phase-locking to slow variations in (AM) of stimuli that provide fundamental acoustic information. From a developmental perspective, AMFR has been recorded sleeping infants, compared or awake adults. lack recordings infants limits conclusions on development AM. Moreover, previous studies assessing AM using non-speech carriers have not included rates (<20 Hz), which are particularly important for speech...
Speech sounds convey relatively slow Amplitude Modulation cues whose processing plays a crucial role for speech comprehension.However, the development of AM and its interaction with intelligibility remains unclear.Previous studies suggested that relates to changes in central filtering or 'processing efficiency' (i.e., reduction internal noise and/or improvements optimality decision making).Here, we explored contribution (i) ability combine over time (temporal integration), (ii) response...
Abstract Infants begin to segment word forms from fluent speech—a crucial task in lexical processing—between 4 and 7 months of age. Prior work has established that infants rely on a variety cues available the speech signal (i.e., prosodic, statistical, acoustic‐segmental, lexical) accomplish this task. In two experiments with French‐learning 6‐ 10‐month‐olds, we use psychoacoustic approach examine if how degradation fundamental acoustic components extracted by auditory system, namely,...
Aims and objectives: The present study explored children’s discrimination capacities for lexical tones consonants between 3 6 years of age the effect native language on this ability. Recent studies in infants have shown a perceptual rebound non-native listeners during second year life, but only tones. However, later stages development, particularly when children start pre-school, are yet not clear. Design: Discrimination abilities 134 were measured three groups using behavioural task where...
The amplitude modulation following response (AMFR) is the steady-state auditory signaling phase-locking to slow variations in (AM) of stimuli that provide fundamental acoustic information. From a developmental perspective, AMFR has been recorded sleeping infants, compared or awake adults. lack recordings infants limits conclusions on development AM. Moreover, previous studies assessing AM using non-speech carriers have not included rates (&lt;20Hz), which are particularly important for...
The amplitude modulation following response (AMFR) is the steady-state auditory signaling phase-locking to slow variations in (AM) of stimuli that provide fundamental acoustic information. From a developmental perspective, AMFR has been recorded sleeping infants, compared or awake adults. lack recordings infants limits conclusions on development AM. Moreover, previous studies assessing AM using non-speech carriers have not included rates (&lt;20Hz), which are particularly important for...
The present study assessed the ability of 6-month-old infants with normal hearing (NH) to discriminate between voiced and unvoiced stop consonants (/aba/versus/apa/) using vocoded disyllables head-turn preference procedure. were processed by 4- or 32-band noise-excited vocoders in order (i) degrade temporal fine structure (TFS) cues while preserving spectral- temporal-envelope cues, (ii) TFS (temporal envelopes being lowpass filtered at 16 Hz each frequency band), (iii) spectral-envelope...