Developmental relations between amygdala volume and anxiety traits: Effects of informant, sex, and age / Katherine RICE WARNELL in Development and Psychopathology, 30-4 (October 2018)  

Public ISBD [article]  inDevelopment and Psychopathology > 30-4 (October 2018) . - p.1503-1515 Titre : Developmental relations between amygdala volume and anxiety traits: Effects of informant, sex, and age Type de document : Texte imprimé et/ou numérique Auteurs : Katherine RICE WARNELL, Auteur ; Meredith PECUKONIS, Auteur ; Elizabeth REDCAY, Auteur Article en page(s) : p.1503-1515 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Although substantial human and animal evidence suggests a role for the amygdala in anxiety, literature linking amygdala volume to anxiety symptomatology is inconclusive, with studies finding positive, negative, and null results. Clarifying this brain–behavior relation in middle to late childhood is especially important, as this is a time both of amygdala structural maturation and the emergence of many anxiety disorders. The goal of the current study was to clarify inconsistent findings in previous literature by identifying factors moderating the relation between amygdala volume and anxiety traits in a large sample of typically developing children aged 6–13 years (N = 72). In particular, we investigated the moderating effects of informant (parent vs. child), age, and sex. We found that children's reports (i.e., self-reports) were related to amygdala volume; children who reported higher anxiety levels had smaller amygdalae. This negative relation between amygdala volume and anxiety weakened with age. There was also an independent effect of sex, such that relations were stronger in males than in females. These results indicate the importance of considering sample and informant characteristics when charting the neurobiological mechanisms underlying developmental anxiety. En ligne : http://dx.doi.org/10.1017/S0954579417001626 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=368 [article] Developmental relations between amygdala volume and anxiety traits: Effects of informant, sex, and age [Texte imprimé et/ou numérique] / Katherine RICE WARNELL, Auteur ; Meredith PECUKONIS, Auteur ; Elizabeth REDCAY, Auteur . - p.1503-1515. Langues : Anglais (eng) in Development and Psychopathology > 30-4 (October 2018) . - p.1503-1515 Index. décimale : PER Périodiques Résumé : Although substantial human and animal evidence suggests a role for the amygdala in anxiety, literature linking amygdala volume to anxiety symptomatology is inconclusive, with studies finding positive, negative, and null results. Clarifying this brain–behavior relation in middle to late childhood is especially important, as this is a time both of amygdala structural maturation and the emergence of many anxiety disorders. The goal of the current study was to clarify inconsistent findings in previous literature by identifying factors moderating the relation between amygdala volume and anxiety traits in a large sample of typically developing children aged 6–13 years (N = 72). In particular, we investigated the moderating effects of informant (parent vs. child), age, and sex. We found that children's reports (i.e., self-reports) were related to amygdala volume; children who reported higher anxiety levels had smaller amygdalae. This negative relation between amygdala volume and anxiety weakened with age. There was also an independent effect of sex, such that relations were stronger in males than in females. These results indicate the importance of considering sample and informant characteristics when charting the neurobiological mechanisms underlying developmental anxiety. En ligne : http://dx.doi.org/10.1017/S0954579417001626 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=368

Explaining Variance in Social Symptoms of Children with Autism Spectrum Disorder / Diana ALKIRE in Journal of Autism and Developmental Disorders, 51-4 (April 2021)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 51-4 (April 2021) . - p.1249-1265 Titre : Explaining Variance in Social Symptoms of Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Diana ALKIRE, Auteur ; Katherine RICE WARNELL, Auteur ; Laura Anderson KIRBY, Auteur ; Dustin MORACZEWSKI, Auteur ; Elizabeth REDCAY, Auteur Article en page(s) : p.1249-1265 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Biological motion perception  Empathy  Social anxiety  Social reward  Theory of mind Index. décimale : PER Périodiques Résumé : The social symptoms of autism spectrum disorder are likely influenced by multiple psychological processes, yet most previous studies have focused on a single social domain. In school-aged autistic children (n?=?49), we compared the amount of variance in social symptoms uniquely explained by theory of mind (ToM), biological motion perception, empathy, social reward, and social anxiety. Parent-reported emotional contagion-the aspect of empathy in which one shares another's emotion-emerged as the most important predictor, explaining 11-14% of the variance in social symptoms, with higher levels of emotional contagion predicting lower social symptom severity. Our findings highlight the role of mutual emotional experiences in social-interactive success, as well as the limitations of standard measures of ToM and social processing in general. En ligne : http://dx.doi.org/10.1007/s10803-020-04598-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=445 [article] Explaining Variance in Social Symptoms of Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Diana ALKIRE, Auteur ; Katherine RICE WARNELL, Auteur ; Laura Anderson KIRBY, Auteur ; Dustin MORACZEWSKI, Auteur ; Elizabeth REDCAY, Auteur . - p.1249-1265. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 51-4 (April 2021) . - p.1249-1265 Mots-clés : Autism spectrum disorder  Biological motion perception  Empathy  Social anxiety  Social reward  Theory of mind Index. décimale : PER Périodiques Résumé : The social symptoms of autism spectrum disorder are likely influenced by multiple psychological processes, yet most previous studies have focused on a single social domain. In school-aged autistic children (n?=?49), we compared the amount of variance in social symptoms uniquely explained by theory of mind (ToM), biological motion perception, empathy, social reward, and social anxiety. Parent-reported emotional contagion-the aspect of empathy in which one shares another's emotion-emerged as the most important predictor, explaining 11-14% of the variance in social symptoms, with higher levels of emotional contagion predicting lower social symptom severity. Our findings highlight the role of mutual emotional experiences in social-interactive success, as well as the limitations of standard measures of ToM and social processing in general. En ligne : http://dx.doi.org/10.1007/s10803-020-04598-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=445

Social and delay discounting in autism spectrum disorder / Katherine RICE WARNELL in Autism Research, 12-6 (June 2019)  

Public ISBD [article]  inAutism Research > 12-6 (June 2019) . - p.870-877 Titre : Social and delay discounting in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Katherine RICE WARNELL, Auteur ; S. MANISCALCO, Auteur ; S. BAKER, Auteur ; R. YI, Auteur ; E. REDCAY, Auteur Année de publication : 2019 Article en page(s) : p.870-877 Langues : Anglais (eng) Mots-clés : autism  delay discounting  perspective taking  reward  social discounting  temporal discounting Index. décimale : PER Périodiques Résumé : Current literature is divided over whether and how processes such as perspective taking and reward sensitivity differ between individuals with autism spectrum disorder (ASD) versus neurotypical individuals. Discounting tasks may provide novel insight into how these processes operate. In delay discounting tasks, participants choose between smaller immediate rewards and larger delayed rewards, and in social discounting tasks, participants choose between a smaller monetary rewards for themselves versus a larger reward for partners of varied social distance (e.g., a close friend vs. an acquaintance). Delay and social discounting tasks thus implicitly measure the subjective value of rewards given to one's future self and to others, capturing constructs such as perspective taking, reward processing, and social closeness, all of which have been discussed as core cognitive mechanisms underlying ASD. Despite extensive research on discounting in other clinical populations, few studies have examined delay discounting in ASD and no research has examined social discounting in ASD. The goal of the current study was to assess delay and social discounting for monetary rewards in a single sample of adolescents and adults with ASD compared to a matched neurotypical sample. Overall, adults and adolescents with ASD valued both future rewards and rewards given to others less than their typical counterparts did, but rates of discounting were not significantly correlated across temporal and social domains. These results extend an important behavioral paradigm for understanding both perspective taking and reward processing to autism. Autism Res 2019, 12: 870-877. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Discounting tasks-which experimentally measure the subjective value of different rewards-have been used with a variety of clinical populations, but are underexplored in ASD. We found that compared to neurotypical individuals, individuals with ASD showed diminished subjective value for future rewards (compared to immediate rewards) and rewards for others (compared to rewards for self). This finding has implications for understanding perspective taking, reward processing, and social closeness in ASD. En ligne : https://dx.doi.org/10.1002/aur.2085 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=400 [article] Social and delay discounting in autism spectrum disorder [Texte imprimé et/ou numérique] / Katherine RICE WARNELL, Auteur ; S. MANISCALCO, Auteur ; S. BAKER, Auteur ; R. YI, Auteur ; E. REDCAY, Auteur . - 2019 . - p.870-877. Langues : Anglais (eng) in Autism Research > 12-6 (June 2019) . - p.870-877 Mots-clés : autism  delay discounting  perspective taking  reward  social discounting  temporal discounting Index. décimale : PER Périodiques Résumé : Current literature is divided over whether and how processes such as perspective taking and reward sensitivity differ between individuals with autism spectrum disorder (ASD) versus neurotypical individuals. Discounting tasks may provide novel insight into how these processes operate. In delay discounting tasks, participants choose between smaller immediate rewards and larger delayed rewards, and in social discounting tasks, participants choose between a smaller monetary rewards for themselves versus a larger reward for partners of varied social distance (e.g., a close friend vs. an acquaintance). Delay and social discounting tasks thus implicitly measure the subjective value of rewards given to one's future self and to others, capturing constructs such as perspective taking, reward processing, and social closeness, all of which have been discussed as core cognitive mechanisms underlying ASD. Despite extensive research on discounting in other clinical populations, few studies have examined delay discounting in ASD and no research has examined social discounting in ASD. The goal of the current study was to assess delay and social discounting for monetary rewards in a single sample of adolescents and adults with ASD compared to a matched neurotypical sample. Overall, adults and adolescents with ASD valued both future rewards and rewards given to others less than their typical counterparts did, but rates of discounting were not significantly correlated across temporal and social domains. These results extend an important behavioral paradigm for understanding both perspective taking and reward processing to autism. Autism Res 2019, 12: 870-877. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Discounting tasks-which experimentally measure the subjective value of different rewards-have been used with a variety of clinical populations, but are underexplored in ASD. We found that compared to neurotypical individuals, individuals with ASD showed diminished subjective value for future rewards (compared to immediate rewards) and rewards for others (compared to rewards for self). This finding has implications for understanding perspective taking, reward processing, and social closeness in ASD. En ligne : https://dx.doi.org/10.1002/aur.2085 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=400

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