Selective brain response to voices at four months of age

Mesure du déficit de reconnaissance des émotions faciales dans la schizophrénie. Étude préliminaire du test de reconnaissance des émotions faciales (TREF)

Resume L’alteration de la cognition sociale associee a la schizophrenie, dont fait partie la perception des emotions faciales, a fait l’objet d’une recente meta-analyse qui a revele son impact majeur sur l’insertion sociale et professionnelle. Or l’utilisation de programmes de remediation cognitive portant sur le traitement des emotions faciales est freinee par un manque d’outil permettant d’identifier et de quantifier les troubles pour un sujet donne. Le test de reconnaissance des emotions faciales (TREF) permet d’evaluer la capacite a reconnaitre 6 emotions universelles (joie, colere, tristesse, peur, degout et mepris), presentees a neuf intensites d’expression s’etalant de 20 % a 100 %. …

A neural marker of rapid discrimination of facial expression in 3.5 and 7-month-old infants

Little is known about infants' ability to rapidly discriminate a facial expression against many others. Here, we investigated the development of facial expression discrimination in infancy with fast periodic visual stimulation coupled with scalp electroencephalography (EEG). EEG was recorded in 3.5- and 7-month-old infants (n=18 per group) displayed with an expressive (disgust or happy) or neutral female face at a base stimulation frequency of 6 Hz. Pictures of the same individual randomly expressing other expressions (either anger, disgust, fear, happiness, sadness, or neutrality) were introduced every 6 stimuli (i.e., at 6/6 = 1 Hz) to directly isolate a discrimination response between th…

La naissance des neurosciences

Que sont les neurosciences ? Découvrons tout cela ensemble avec un reportage !

Measuring visual perception in the human brain with frequency-tagging in scalp EEG

Matching emotional expressions of faces within an olfactory context: Does my own feeling matter?

Maternal odor selectively enhances rapid face categorization from natural images in the 4-month-old infant brain

Maternal odor selectively enhances the categorization of face(like) stimuli in the 4 month-old infant brain

Présentation Poster; International audience; In the 4-month-old infant brain, the visual categorization of natural face images is enhanced by concomitant maternal odor (Leleu et al., 2019), providing support for the early perception of congruent associations between co-occurring inputs from multiple senses. Here, we further explore whether this maternal odor effect is selective to faces or if it can be explained by a more general influence of salient odor cues on the perception of any visual object category. In Experiment 1, scalp electroencephalogram was recorded during a fast periodic visual stimulation (FPVS-EEG) while 4-month-old infants were exposed to the maternal vs. a control odor. …

Maternal odor favors the categorization of faces in younger, but not older, infants

Chemocommunication in a vision-ruled world

The development of rapid face categorization in the human infant brain

Électrophysiologie du traitement visuel des expressions faciales dans la microdélétion 22q11.2 : un nouveau marqueur sensible, spécifique et implicite

Maternal odor shapes face categorization in the 4-month-old infant brain

Auditory attentional entrainment modulates the holistic perception of faces

Semaine du Cerveau 2021 à Dijon : deux conférences en ligne du CSGA

" Ce que les illusions révèlent de notre cerveau visuel "Mardi 16/03, conférence de 12h30 à 13h30 :Dr. Arnaud LELEU, CNRS-INRAE-Université, Centre des Sciences du Goût et de l’Alimentation (CSGA), DijonLien vers la conférence sur Teams : https://bit.ly/38bSE6q" Quand notre cerveau co-nez ce qu'il voit : apprendre à voir avec les odeurs "Mercredi 17/03, conférence de 18h30 à 19h30Dr. Diane REKOW, CNRS-INRAE-Université, Centre des Sciences du Goût et de l’Alimentation, DijonLien vers la conférence sur Teams : https://bit.ly/3bhWD3e

Mesure de la perception chez l’humain par étiquetage fréquentiel en EEG

Smell what you hardly see: When odors assist the visual brain

The development of rapid face categorization in late infancy

Perceptual awareness of illusory faces in the human brain

Maternal odor favors the categorization of faces in younger, but not older, infants

Odors mediate the visual categorization of ambiguous stimuli in the human brain

Sex differences in interhemispheric communication during face identity encoding: Evidence from ERPs

Sex-related hemispheric lateralization and interhemispheric transmission times (IHTTs) were examined in twenty-four participants at the level of the first visual ERP components (P1 and N170) during face identity encoding in a divided visual-field paradigm. While no lateralization-related and sex-related differences were reflected in the P1 characteristics, these two factors modulated the N170. Indeed, N170 amplitudes indicated a right hemisphere (RH) dominance in men (and a more bilateral functioning in women). N170 latencies and the derived IHTTs confirmed the RH advantage in men but showed the reverse asymmetry in women. Altogether, the results of this study suggest a clear asymmetry in m…

Smell what you hardly see: when odors assist the visual cortex

Development of face pareidolia in objects in 3- to 6-month-old infants

Apprendre à voir avec le nez

How odors assist the developing visual system in humans

Maternal body odor helps the development of rapid face categorization in the human infant brain

Temporal dynamics of odor integration in the visual categorization of food

International audience

Perspectives actuelles dans la microdélétion 22q11.2 : prise en charge du phénotype neurocomportemental

Resume La microdeletion 22q11.2 est le syndrome microdeletionnel le plus frequent de la population generale. Le phenotype associe des anomalies de l’appareil pharynge embryonnaire a un phenotype neurocomportemental. La presentation clinique du syndrome est extremement variable d’un individu a l’autre, quelle que soit la taille de la deletion, et plus de 180 manifestations ont ete decrites, aucune n’etant pathognomonique. Les symptomes psychiatriques, particulierement de nature psychotique, sont frequents dans la microdeletion 22q11.2 et de nombreux psychiatres sont amenes a rencontrer ces patients. La prise en charge doit tenir compte des particularites du syndrome. L’evaluation de la neuro…

The time course of facial expression processing modulation by the olfactory context: an ERP study

Introduction à l’usage de l’EEG pour étudier l’intégration cognitive des informations sensorielles

How odor contexts influence the perception of facial expressions of emotions: A developmental perspective

De l’électroencéphalographie (EEG) au neurofeedback

Marqueurs neurocognitifs des troubles psychotiques dans la microdélétion 22q11.2 : une étude comportementale et électrophysiologique chez des jumeaux homozygotes

Odor-driven visual categorization in the infant brain

A developmental trade-off: Maternal odor tutors face categorization in younger, but not older, infants

Learning to see faces with body odors

Voyage au fil de nos pensées. La Nuit européenne des chercheurs

Maternal odor selectively enhances the categorization of face(like) stimuli in the 4-month-old infant brain

In the 4-month-old infant brain, the visual categorization of natural face images is enhanced by concomitant maternal odor (Leleu et al., 2019), providing support for the early perception of congruent associations between co-occurring inputs from multiple senses. Here, we further explore whether this maternal odor effect is selective to faces or if it can be explained by a more general influence of salient odor cues on the perception of any visual object category. In Experiment 1, scalp electroencephalogram was recorded during a fast periodic visual stimulation (FPVS-EEG) while 4-month-old infants were exposed to the maternal vs. a control odor. In rapid 6-Hz streams of natural images (i.e.…

The olfactory context affects facial expression processing: An ERP study