A5008722925- Language Development and Disorders
- Reading and Literacy Development
- Neuroscience and Music Perception
- Advanced Neuroimaging Techniques and Applications
- Neonatal and fetal brain pathology
- Neurobiology of Language and Bilingualism
- Child and Animal Learning Development
- Neural dynamics and brain function
- Multisensory perception and integration
- Functional Brain Connectivity Studies
- Cognitive and developmental aspects of mathematical skills
- Face Recognition and Perception
- Infant Health and Development
- Fetal and Pediatric Neurological Disorders
- Hearing Loss and Rehabilitation
- Hemispheric Asymmetry in Neuroscience
- Visual perception and processing mechanisms
- EEG and Brain-Computer Interfaces
- Blind Source Separation Techniques
- Advanced MRI Techniques and Applications
- Infant Development and Preterm Care
- Phonetics and Phonology Research
- Mathematics Education and Teaching Techniques
- Health, Medicine and Society
- Neuroscience, Education and Cognitive Function
Inserm
2016-2025
Cognitive Neuroimaging Lab
2016-2025
CEA Paris-Saclay
2016-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2016-2025
Université Paris-Saclay
2016-2025
Centre National de la Recherche Scientifique
2005-2025
NeuroSpine Institute
2008-2022
Direction de la Recherche Fondamentale
2006-2021
Centre National pour la Recherche Scientifique et Technique (CNRST)
2020
Université Paris-Sud
2008-2019
A standard model of word reading postulates that visual information is initially processed by occipitotemporal areas contralateral to the stimulated hemifield, from whence it subsequently transferred form (VWF) system, a left inferior temporal region specifically devoted processing letter strings. For stimuli displayed in field, this transfer proceeds right hemisphere through posterior portion corpus callosum. In order characterize spatial and organization these processes, tasks with...
Reading, Writing, and Face Recognition not to mention writing texting, is a relatively recent invention, hence it believed that preliterate brain must adapt on the fly, so speak, in learning how process written words, rather than being able rely upon evolutionarily ancient modifications of visual system pathways. Dehaene et al. (p. 1359 , published online 11 November) examined neural response range stimuli three groups: illiterate adults, adults who learned read as children, adults. Reading...
Human infants begin to acquire their native language in the first months of life. To determine which brain regions support processing at this young age, we measured with functional magnetic resonance imaging activity evoked by normal and reversed speech awake sleeping 3-month-old infants. Left-lateralized similar those adults, including superior temporal angular gyri, were already active Additional activation right prefrontal cortex was seen only speech. Thus, precursors adult cortical areas...
Does the neonate's brain have left hemisphere (LH) dominance for speech? Twelve full-term neonates participated in an optical topography study designed to assess whether neonate responds specifically linguistic stimuli. Participants were tested with normal infant-directed speech, same utterances played reverse and without auditory stimulation. We used a 24-channel device changes concentration of total hemoglobin response stimulation 12 areas right LH. found that LH temporal showed...
EVENT-RELATED potentials, recorded through a 128-electrode net, were used to study phonemic processing in the human auditory system. Within stream of identical syllables, acoustic deviants introduced that either crossed phonetic boundary or remained within same category. Two boundaries explored, one present and other absent subjects' native language. A large mismatch negativity was induced by deviants, but not non-native within-category deviants. We suggest language-specific code has...
The ontogeny of linguistic functions in the human brain remains elusive. Although some auditory capacities are described before term, whether and how such immature cortical circuits might process speech unknown. Here we used functional optical imaging to evaluate cerebral responses syllables at earliest age which external stimuli can be recorded humans (28- 32-wk gestational age). At this age, organization layers is not completed. Many neurons still located subplate migrating their final...
Abstract Normal cognitive development in infants follows a well‐known temporal sequence, which is assumed to be correlated with the structural maturation of underlying functional networks. Postmortem studies and, more recently, MR imaging have described qualitatively heterogeneous spatiotemporal progression white matter myelination. However, vivo quantification phases fiber bundles still lacking. We used noninvasive diffusion tensor and tractography twenty‐three 1–4‐month‐old healthy...
We examined the functional organization of cerebral activity in 3-month-old infants when they were listening to their mother language. Short sentences presented a slow event-related MRI paradigm. then parsed infant's network perisylvian responsive regions into functionally distinct based on speed activation and sensitivity sentence repetition. An adult-like structure response delays was observed along superior temporal regions, suggesting hierarchical processing scheme. The fastest responses...
How does education affect cortical organization? All literate adults possess a region specialized for letter strings, the visual word form area (VWFA), within mosaic of ventral regions involved in processing other categories such as objects, places, faces, or body parts. Therefore, acquisition literacy may induce reorientation maps towards letters at expense faces. To test this recycling hypothesis, we studied how cortex individual children changes during first months reading acquisition....
Children's cognitive abilities and school achievements are deeply affected by parental socioeconomic status (SES). Numerous studies have reported lower performance in relation to unfavorable environments, but little is known about the effects of SES on child's neural structures. Here, we systematically explore association between brain anatomy through MRI a group 23 healthy 10-year-old children with wide range SES. We confirm behaviorally that language one domains most Furthermore, observe...
Consciousness Arrives Neurophysiological measures in human adults correspond to the transition between very brief, “unnoticeable,” and slightly longer-lived visual stimuli that penetrate deeply enough leave a conscious imprint subjects report they can “see.” Kouider et al. (p. 376 ) have performed parallel behavioral neurophysiological studies infants identify similar neural signal appears mark development of consciousness.
Identifying potentially unique features of the human cerebral cortex is a first step to understanding how evolution has shaped brain in our species. By analyzing MR images obtained from 177 humans and 73 chimpanzees, we observed human-specific asymmetry superior temporal sulcus at heart communication regions which have named "superior asymmetrical pit" (STAP). This 45-mm-long segment ventral Heschl's gyrus deeper right hemisphere than left 95% typical subjects, infanthood till adulthood,...
Abstract It is well known that speech perception deeply affected by the phoneme categories of native language. Recent studies have found phonotactics, i.e., constraints on cooccurrence phonemes within words, also a considerable impact routines. For example, Japanese does not allow (nonasal) coda consonants. When presented with stimuli violate this constraint, as in / ebzo/, adults report they hear /u/ between consonants, /ebuzo/. We examine phenomenon using event-related potentials (ERPs)...
IN adults, neural networks for phonological processing distinct from those involved in acoustical are located the left temporal lobe. We now report that by age of 3 months, infants display devices analogous to found adults. Within a stream identical syllables, acoustic deviants were introduced, either crossing phonetic boundary or remaining within same category. Event-related potentials recorded using 64-electrode net. Although change was similar amplitude two deviants, electrophysiological...
Both language capacity and strongly lateralized hand preference are among the most intriguing particularities of human species. They associated in adult brain with functional anatomical hemispheric asymmetries speech perception–production network sensori-motor system. Only studies early life can help us to understand how such arise during development, which point structural left–right differences source or consequence lateralization. In this study, we aimed provide new vivo markers infants...
All humans, regardless of their culture and education, possess an intuitive understanding number. Behavioural evidence suggests that numerical competence may be present early on in infancy. Here, we brain-imaging for distinct cerebral coding number object identity 3-mo-old infants. We compared the visual event-related potentials evoked by unforeseen changes either objects forming a set, or cardinal this set. In adults 4-y-old children, sense relies dorsal system bilateral intraparietal...