Détection automatique du changement d'expression émotionnelle faciale / Klara KOVARSKI in Bulletin Scientifique de l'arapi (Le), 37 (Eté 2016)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 37 (Eté 2016) . - p.57-59 Titre : Détection automatique du changement d'expression émotionnelle faciale Type de document : Texte imprimé et/ou numérique Auteurs : Klara KOVARSKI, Auteur ; Marianne LATINUS, Auteur ; Helen CLERY, Auteur ; Sylvie ROUX, Auteur ; Mathieu LEMAIRE, Auteur ; Agathe SABY, Auteur ; Frédérique BONNET-BRILHAULT, Auteur ; Magali BATTY, Auteur ; Marie GOMOT, Auteur Année de publication : 2016 Article en page(s) : p.57-59 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=293 [article] Détection automatique du changement d'expression émotionnelle faciale [Texte imprimé et/ou numérique] / Klara KOVARSKI, Auteur ; Marianne LATINUS, Auteur ; Helen CLERY, Auteur ; Sylvie ROUX, Auteur ; Mathieu LEMAIRE, Auteur ; Agathe SABY, Auteur ; Frédérique BONNET-BRILHAULT, Auteur ; Magali BATTY, Auteur ; Marie GOMOT, Auteur . - 2016 . - p.57-59. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 37 (Eté 2016) . - p.57-59 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=293

Reduced spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model / Sylvain HARQUEL ; Leonardo S. BARBOSA ; Klara KOVARSKI ; Marta I. GARRIDO ; Laurent VERCUEIL ; Louise KAUFFMANN ; Frédéric DUTHEIL ; Marie GOMOT ; Martial MERMILLOD in Autism Research, 17-9 (September 2024)  

Public ISBD [article]  inAutism Research > 17-9 (September 2024) . - p.1778-1795 Titre : Reduced spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model Type de document : Texte imprimé et/ou numérique Auteurs : Sylvain HARQUEL, Auteur ; Leonardo S. BARBOSA, Auteur ; Klara KOVARSKI, Auteur ; Marta I. GARRIDO, Auteur ; Laurent VERCUEIL, Auteur ; Louise KAUFFMANN, Auteur ; Frédéric DUTHEIL, Auteur ; Marie GOMOT, Auteur ; Martial MERMILLOD, Auteur Article en page(s) : p.1778-1795 Langues : Anglais (eng) Mots-clés : autism  EEG  emotion recognition  fusiform  sex differences  spatial frequencies Index. décimale : PER Périodiques Résumé : Abstract Face processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine information conveyed by high spatial frequencies. However, autistic individuals might have atypical predictive processes, contributing to facial processing difficulties. This may be more normalized in autistic females, who often exhibit better socio-communicational abilities than males. We hypothesized that autistic females would display a more typical coarse-to-fine processing for socio-emotional stimuli compared to autistic males. To test this hypothesis, we asked adult participants (44 autistic, 51 non-autistic) to detect fearful faces among neutral faces, filtered in two orders: from coarse-to-fine (CtF) and from fine-to-coarse (FtC). Results show lower d? values and longer reaction times for fearful detection in autism compared to non-autistic (NA) individuals, regardless of the filtering order. Both groups presented shorter P100 latency after CtF compared to FtC, and larger amplitude for N170 after FtC compared to CtF. However, autistic participants presented a reduced difference in source activity between CtF and FtC in the fusiform. There was also a more spatially spread activation pattern in autistic females compared to NA females. Finally, females had faster P100 and N170 latencies, as well as larger occipital activation for FtC sequences than males, irrespective of the group. Overall, the results do not suggest impaired predictive processes from LSF in autism despite behavioral differences in fear detection. However, they do indicate reduced brain modulation by spatial frequency in autism. In addition, the findings highlight sex differences that warrant consideration in understanding autistic females. En ligne : https://doi.org/10.1002/aur.3209 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535 [article] Reduced spatial frequency differentiation and sex-related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model [Texte imprimé et/ou numérique] / Sylvain HARQUEL, Auteur ; Leonardo S. BARBOSA, Auteur ; Klara KOVARSKI, Auteur ; Marta I. GARRIDO, Auteur ; Laurent VERCUEIL, Auteur ; Louise KAUFFMANN, Auteur ; Frédéric DUTHEIL, Auteur ; Marie GOMOT, Auteur ; Martial MERMILLOD, Auteur . - p.1778-1795. Langues : Anglais (eng) in Autism Research > 17-9 (September 2024) . - p.1778-1795 Mots-clés : autism  EEG  emotion recognition  fusiform  sex differences  spatial frequencies Index. décimale : PER Périodiques Résumé : Abstract Face processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine information conveyed by high spatial frequencies. However, autistic individuals might have atypical predictive processes, contributing to facial processing difficulties. This may be more normalized in autistic females, who often exhibit better socio-communicational abilities than males. We hypothesized that autistic females would display a more typical coarse-to-fine processing for socio-emotional stimuli compared to autistic males. To test this hypothesis, we asked adult participants (44 autistic, 51 non-autistic) to detect fearful faces among neutral faces, filtered in two orders: from coarse-to-fine (CtF) and from fine-to-coarse (FtC). Results show lower d? values and longer reaction times for fearful detection in autism compared to non-autistic (NA) individuals, regardless of the filtering order. Both groups presented shorter P100 latency after CtF compared to FtC, and larger amplitude for N170 after FtC compared to CtF. However, autistic participants presented a reduced difference in source activity between CtF and FtC in the fusiform. There was also a more spatially spread activation pattern in autistic females compared to NA females. Finally, females had faster P100 and N170 latencies, as well as larger occipital activation for FtC sequences than males, irrespective of the group. Overall, the results do not suggest impaired predictive processes from LSF in autism despite behavioral differences in fear detection. However, they do indicate reduced brain modulation by spatial frequency in autism. In addition, the findings highlight sex differences that warrant consideration in understanding autistic females. En ligne : https://doi.org/10.1002/aur.3209 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535

Spontaneous instrumental approach-avoidance learning in social contexts in autism / Morgan BEAURENAUT in Molecular Autism, 15 (2024)  

Public ISBD [article]  inMolecular Autism > 15 (2024) . - 33p. Titre : Spontaneous instrumental approach-avoidance learning in social contexts in autism Type de document : Texte imprimé et/ou numérique Auteurs : Morgan BEAURENAUT, Auteur ; Klara KOVARSKI, Auteur ; Constance DESTAIS, Auteur ; Rocco MENNELLA, Auteur ; Julie GREZES, Auteur Article en page(s) : 33p. Langues : Anglais (eng) Mots-clés : Humans  Female  Male  Adult  Autistic Disorder/psychology  Young Adult  Avoidance Learning  Adolescent  Autism Spectrum Disorder/psychology  Social Behavior  Emotions  Social Interaction  Approach/avoidance  Autism  Emotional expressions  Gender bias  Social reinforcement learning Index. décimale : PER Périodiques Résumé : BACKGROUND: Individuals with Autism Spectrum Condition (ASC) are characterized by atypicalities in social interactions, compared to Typically Developing individuals (TD). The social motivation theory posits that these difficulties stem from diminished anticipation, reception, and/or learning from social rewards. Although learning from socioemotional outcomes is core to the theory, studies to date have been sparse and inconsistent. This possibly arises from a combination of theoretical, methodological and sample-related issues. Here, we assessed participants' ability to develop a spontaneous preference for actions that lead to desirable socioemotional outcomes (approaching/avoiding of happy/angry individuals, respectively), in an ecologically valid social scenario. We expected that learning abilities would be impaired in ASC individuals, particularly in response to affiliative social feedback. METHOD: We ran an online social reinforcement learning task, on two large online cohorts with (n = 274) and without (n = 290) ASC, matched for gender, age and education. Participants had to indicate where they would sit in a waiting room. Each seat was associated with different probabilities of approaching/avoiding emotional individuals. Importantly, the task was implicit, as participants were not instructed to learn, and emotional expressions were never mentioned. We applied both categorical analyses contrasting the ASC and TD groups and dimensional factor analysis on affective questionnaires. RESULTS: Contrary to our hypothesis, participants showed spontaneous learning from socioemotional outcomes, regardless of their diagnostic group. Yet, when accounting for dimensional variations in autistic traits, as well as depression and anxiety, two main findings emerged among females who failed to develop explicit learning strategies: (1) autism severity in ASC correlated with reduced learning to approach happy individuals; (2) anxiety-depression severity across both ASC and TD participants correlated with reduced learning to approach/avoid happy/angry individuals, respectively. CONCLUSIONS: Implicit spontaneous learning from socioemotional outcomes is not generally impaired in autism but may be specifically associated with autism severity in females with ASC, when they do not have an explicit strategy for adapting to their social environment. Clinical diagnosis and intervention ought to take into account individual differences in their full complexity, including the presence of co-morbid anxiety and depression, when dealing with social atypicalities in autism. En ligne : https://dx.doi.org/10.1186/s13229-024-00610-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538 [article] Spontaneous instrumental approach-avoidance learning in social contexts in autism [Texte imprimé et/ou numérique] / Morgan BEAURENAUT, Auteur ; Klara KOVARSKI, Auteur ; Constance DESTAIS, Auteur ; Rocco MENNELLA, Auteur ; Julie GREZES, Auteur . - 33p. Langues : Anglais (eng) in Molecular Autism > 15 (2024) . - 33p. Mots-clés : Humans  Female  Male  Adult  Autistic Disorder/psychology  Young Adult  Avoidance Learning  Adolescent  Autism Spectrum Disorder/psychology  Social Behavior  Emotions  Social Interaction  Approach/avoidance  Autism  Emotional expressions  Gender bias  Social reinforcement learning Index. décimale : PER Périodiques Résumé : BACKGROUND: Individuals with Autism Spectrum Condition (ASC) are characterized by atypicalities in social interactions, compared to Typically Developing individuals (TD). The social motivation theory posits that these difficulties stem from diminished anticipation, reception, and/or learning from social rewards. Although learning from socioemotional outcomes is core to the theory, studies to date have been sparse and inconsistent. This possibly arises from a combination of theoretical, methodological and sample-related issues. Here, we assessed participants' ability to develop a spontaneous preference for actions that lead to desirable socioemotional outcomes (approaching/avoiding of happy/angry individuals, respectively), in an ecologically valid social scenario. We expected that learning abilities would be impaired in ASC individuals, particularly in response to affiliative social feedback. METHOD: We ran an online social reinforcement learning task, on two large online cohorts with (n = 274) and without (n = 290) ASC, matched for gender, age and education. Participants had to indicate where they would sit in a waiting room. Each seat was associated with different probabilities of approaching/avoiding emotional individuals. Importantly, the task was implicit, as participants were not instructed to learn, and emotional expressions were never mentioned. We applied both categorical analyses contrasting the ASC and TD groups and dimensional factor analysis on affective questionnaires. RESULTS: Contrary to our hypothesis, participants showed spontaneous learning from socioemotional outcomes, regardless of their diagnostic group. Yet, when accounting for dimensional variations in autistic traits, as well as depression and anxiety, two main findings emerged among females who failed to develop explicit learning strategies: (1) autism severity in ASC correlated with reduced learning to approach happy individuals; (2) anxiety-depression severity across both ASC and TD participants correlated with reduced learning to approach/avoid happy/angry individuals, respectively. CONCLUSIONS: Implicit spontaneous learning from socioemotional outcomes is not generally impaired in autism but may be specifically associated with autism severity in females with ASC, when they do not have an explicit strategy for adapting to their social environment. Clinical diagnosis and intervention ought to take into account individual differences in their full complexity, including the presence of co-morbid anxiety and depression, when dealing with social atypicalities in autism. En ligne : https://dx.doi.org/10.1186/s13229-024-00610-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538

Troubles du Spectre de l'Autisme chez l'enfant né prématurément / Olivier BAUD in Bulletin Scientifique de l'arapi (Le), 36 (Hiver 2015)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 36 (Hiver 2015) . - p.6-10 Titre : Troubles du Spectre de l'Autisme chez l'enfant né prématurément Type de document : Texte imprimé et/ou numérique Auteurs : Olivier BAUD, Auteur ; Klara KOVARSKI, Auteur ; Bernadette ROGE, Auteur Année de publication : 2015 Article en page(s) : p.6-10 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284 [article] Troubles du Spectre de l'Autisme chez l'enfant né prématurément [Texte imprimé et/ou numérique] / Olivier BAUD, Auteur ; Klara KOVARSKI, Auteur ; Bernadette ROGE, Auteur . - 2015 . - p.6-10. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 36 (Hiver 2015) . - p.6-10 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284

Vieillissement : approche médicale et adaptative et implications dans l'autisme / Caroline HOMMET in Bulletin Scientifique de l'arapi (Le), 36 (Hiver 2015)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 36 (Hiver 2015) . - p.35-38 Titre : Vieillissement : approche médicale et adaptative et implications dans l'autisme Type de document : Texte imprimé et/ou numérique Auteurs : Caroline HOMMET, Auteur ; Klara KOVARSKI, Auteur ; Dominique FIARD, Auteur Année de publication : 2015 Article en page(s) : p.35-38 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284 [article] Vieillissement : approche médicale et adaptative et implications dans l'autisme [Texte imprimé et/ou numérique] / Caroline HOMMET, Auteur ; Klara KOVARSKI, Auteur ; Dominique FIARD, Auteur . - 2015 . - p.35-38. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 36 (Hiver 2015) . - p.35-38 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284

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