Selective brain response to voices at four months of age

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…

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

The development of rapid face categorization in the human infant brain

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

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

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

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

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

How odors assist the developing visual system in humans

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

Etiquetage fréquentiel en EEG pour mesurer le développement perceptif du nourrisson humain

When your nose knows what you see : multisensory development of visual categorization : evidence from odor-driven face categorization in the human brain

This thesis examines whether and how odors contribute to the development of visual categorization in the human brain using fast periodic visual stimulation coupled with scalp electroencephalography (FPVS-EEG). Specifically, we sought to characterize if a neural visual response selective to the face category is modulated by the presence of a body odor in both infants (Study 1, 2, 3) and adults (Study 4).In infants, the selectivity of the odor effect on visual categorization was addressed by testing separately three categories in three groups of 4-month-old infants presented with a control odor or their mother’s odor. We observed that a face-selective response is largely enhanced by maternal …

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.…