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Détail de l'auteur
Auteur Joshua H. BALSTERS |
Documents disponibles écrits par cet auteur (2)
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Contagion of Temporal Discounting Value Preferences in Neurotypical and Autistic Adults / L. THOMAS in Journal of Autism and Developmental Disorders, 52-2 (February 2022)
[article]
Titre : Contagion of Temporal Discounting Value Preferences in Neurotypical and Autistic Adults Type de document : Texte imprimé et/ou numérique Auteurs : L. THOMAS, Auteur ; P. L. LOCKWOOD, Auteur ; M. M. GARVERT, Auteur ; Joshua H. BALSTERS, Auteur Article en page(s) : p.700-713 Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder Autistic Disorder Bayes Theorem Delay Discounting Humans Learning Index. décimale : PER Périodiques Résumé : Neuroeconomics paradigms have demonstrated that learning about another's beliefs can make you more like them (i.e., contagion). Due to social deficits in autism, it is possible that autistic individuals will be immune to contagion. We fit Bayesian computational models to a temporal discounting task, where participants made decisions for themselves before and after learning the distinct preferences of two others. Two independent neurotypical samples (N?=?48; N?=?98) both showed a significant contagion effect; however the strength of contagion was unrelated to autistic traits. Equivalence tests showed autistic (N?=?12) and matched neurotypical N?=?12) samples had similar levels of contagion and accuracy when learning about others. Despite social impairments being at the core of autistic symptomatology, contagion of value preferences appears to be intact. En ligne : http://dx.doi.org/10.1007/s10803-021-04962-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455
in Journal of Autism and Developmental Disorders > 52-2 (February 2022) . - p.700-713[article] Contagion of Temporal Discounting Value Preferences in Neurotypical and Autistic Adults [Texte imprimé et/ou numérique] / L. THOMAS, Auteur ; P. L. LOCKWOOD, Auteur ; M. M. GARVERT, Auteur ; Joshua H. BALSTERS, Auteur . - p.700-713.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 52-2 (February 2022) . - p.700-713
Mots-clés : Adult Autism Spectrum Disorder Autistic Disorder Bayes Theorem Delay Discounting Humans Learning Index. décimale : PER Périodiques Résumé : Neuroeconomics paradigms have demonstrated that learning about another's beliefs can make you more like them (i.e., contagion). Due to social deficits in autism, it is possible that autistic individuals will be immune to contagion. We fit Bayesian computational models to a temporal discounting task, where participants made decisions for themselves before and after learning the distinct preferences of two others. Two independent neurotypical samples (N?=?48; N?=?98) both showed a significant contagion effect; however the strength of contagion was unrelated to autistic traits. Equivalence tests showed autistic (N?=?12) and matched neurotypical N?=?12) samples had similar levels of contagion and accuracy when learning about others. Despite social impairments being at the core of autistic symptomatology, contagion of value preferences appears to be intact. En ligne : http://dx.doi.org/10.1007/s10803-021-04962-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 Social and monetary reward processing in autism spectrum disorders / Sonja DELMONTE in Molecular Autism, (September 2012)
[article]
Titre : Social and monetary reward processing in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Sonja DELMONTE, Auteur ; Joshua H. BALSTERS, Auteur ; Jane MCGRATH, Auteur ; Jacqueline FITZGERALD, Auteur ; Sean BRENNAN, Auteur ; Andrew J. FAGAN, Auteur ; Louise GALLAGHER, Auteur Année de publication : 2012 Article en page(s) : 13 p. Langues : Anglais (eng) Mots-clés : Autism Reward Social motivation Striatum Functional magnetic resonance imaging fMRI Index. décimale : PER Périodiques Résumé :
Background
Social motivation theory suggests that deficits in social reward processing underlie social impairments in autism spectrum disorders (ASD). However, the extent to which abnormalities in reward processing generalize to other classes of stimuli remains unresolved. The aim of the current study was to examine if reward processing abnormalities in ASD are specific to social stimuli or can be generalized to other classes of reward. Additionally, we sought to examine the results in the light of behavioral impairments in ASD.
Methods
Participants performed adapted versions of the social and monetary incentive delay tasks. Data from 21 unmedicated right-handed male participants with ASD and 21 age- and IQ-matched controls were analyzed using a factorial design to examine the blood-oxygen-level-dependent (BOLD) response during the anticipation and receipt of both reward types.
Results
Behaviorally, the ASD group showed less of a reduction in reaction time (RT) for rewarded compared to unrewarded trials than the control group. In terms of the fMRI results, there were no significant group differences in reward circuitry during reward anticipation. During the receipt of rewards, there was a significant interaction between group and reward type in the left dorsal striatum (DS). The ASD group showed reduced activity in the DS compared to controls for social rewards but not monetary rewards and decreased activation for social rewards compared to monetary rewards. Controls showed no significant difference between the two reward types. Increased activation in the DS during social reward processing was associated with faster response times for rewarded trials, compared to unrewarded trials, in both groups. This is in line with behavioral results indicating that the ASD group showed less of a reduction in RT for rewarded compared to unrewarded trials. Additionally, de-activation to social rewards was associated with increased repetitive behavior in ASD.
Conclusions
In line with social motivation theory, the ASD group showed reduced activation, compared to controls, during the receipt of social rewards in the DS. Groups did not differ significantly during the processing of monetary rewards. BOLD activation in the DS, during social reward processing, was associated with behavioral impairments in ASD.En ligne : http://dx.doi.org/10.1186/2040-2392-3-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=201
in Molecular Autism > (September 2012) . - 13 p.[article] Social and monetary reward processing in autism spectrum disorders [Texte imprimé et/ou numérique] / Sonja DELMONTE, Auteur ; Joshua H. BALSTERS, Auteur ; Jane MCGRATH, Auteur ; Jacqueline FITZGERALD, Auteur ; Sean BRENNAN, Auteur ; Andrew J. FAGAN, Auteur ; Louise GALLAGHER, Auteur . - 2012 . - 13 p.
Langues : Anglais (eng)
in Molecular Autism > (September 2012) . - 13 p.
Mots-clés : Autism Reward Social motivation Striatum Functional magnetic resonance imaging fMRI Index. décimale : PER Périodiques Résumé :
Background
Social motivation theory suggests that deficits in social reward processing underlie social impairments in autism spectrum disorders (ASD). However, the extent to which abnormalities in reward processing generalize to other classes of stimuli remains unresolved. The aim of the current study was to examine if reward processing abnormalities in ASD are specific to social stimuli or can be generalized to other classes of reward. Additionally, we sought to examine the results in the light of behavioral impairments in ASD.
Methods
Participants performed adapted versions of the social and monetary incentive delay tasks. Data from 21 unmedicated right-handed male participants with ASD and 21 age- and IQ-matched controls were analyzed using a factorial design to examine the blood-oxygen-level-dependent (BOLD) response during the anticipation and receipt of both reward types.
Results
Behaviorally, the ASD group showed less of a reduction in reaction time (RT) for rewarded compared to unrewarded trials than the control group. In terms of the fMRI results, there were no significant group differences in reward circuitry during reward anticipation. During the receipt of rewards, there was a significant interaction between group and reward type in the left dorsal striatum (DS). The ASD group showed reduced activity in the DS compared to controls for social rewards but not monetary rewards and decreased activation for social rewards compared to monetary rewards. Controls showed no significant difference between the two reward types. Increased activation in the DS during social reward processing was associated with faster response times for rewarded trials, compared to unrewarded trials, in both groups. This is in line with behavioral results indicating that the ASD group showed less of a reduction in RT for rewarded compared to unrewarded trials. Additionally, de-activation to social rewards was associated with increased repetitive behavior in ASD.
Conclusions
In line with social motivation theory, the ASD group showed reduced activation, compared to controls, during the receipt of social rewards in the DS. Groups did not differ significantly during the processing of monetary rewards. BOLD activation in the DS, during social reward processing, was associated with behavioral impairments in ASD.En ligne : http://dx.doi.org/10.1186/2040-2392-3-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=201