Neural mechanisms of negative reinforcement in children and adolescents with autism spectrum disorders / Cara R. DAMIANO in Journal of Neurodevelopmental Disorders, 7-1 (December 2015)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 7-1 (December 2015) . - p.12 Titre : Neural mechanisms of negative reinforcement in children and adolescents with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Cara R. DAMIANO, Auteur ; D. C. COCKRELL, Auteur ; K. DUNLAP, Auteur ; E. K. HANNA, Auteur ; S. MILLER, Auteur ; Joshua BIZZELL, Auteur ; M. KOVAC, Auteur ; Lauren M. TURNER-BROWN, Auteur ; J. SIDERIS, Auteur ; J. KINARD, Auteur ; Gabriel S. DICHTER, Auteur Article en page(s) : p.12 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders (ASD)  Negative reinforcement  Reward loss  Reward motivation  Reward processing  Social motivation Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous research has found accumulating evidence for atypical reward processing in autism spectrum disorders (ASD), particularly in the context of social rewards. Yet, this line of research has focused largely on positive social reinforcement, while little is known about the processing of negative reinforcement in individuals with ASD. METHODS: The present study examined neural responses to social negative reinforcement (a face displaying negative affect) and non-social negative reinforcement (monetary loss) in children with ASD relative to typically developing children, using functional magnetic resonance imaging (fMRI). RESULTS: We found that children with ASD demonstrated hypoactivation of the right caudate nucleus while anticipating non-social negative reinforcement and hypoactivation of a network of frontostriatal regions (including the nucleus accumbens, caudate nucleus, and putamen) while anticipating social negative reinforcement. In addition, activation of the right caudate nucleus during non-social negative reinforcement was associated with individual differences in social motivation. CONCLUSIONS: These results suggest that atypical responding to negative reinforcement in children with ASD may contribute to social motivational deficits in this population. En ligne : http://dx.doi.org/10.1186/s11689-015-9107-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347 [article] Neural mechanisms of negative reinforcement in children and adolescents with autism spectrum disorders [Texte imprimé et/ou numérique] / Cara R. DAMIANO, Auteur ; D. C. COCKRELL, Auteur ; K. DUNLAP, Auteur ; E. K. HANNA, Auteur ; S. MILLER, Auteur ; Joshua BIZZELL, Auteur ; M. KOVAC, Auteur ; Lauren M. TURNER-BROWN, Auteur ; J. SIDERIS, Auteur ; J. KINARD, Auteur ; Gabriel S. DICHTER, Auteur . - p.12. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 7-1 (December 2015) . - p.12 Mots-clés : Autism spectrum disorders (ASD)  Negative reinforcement  Reward loss  Reward motivation  Reward processing  Social motivation Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous research has found accumulating evidence for atypical reward processing in autism spectrum disorders (ASD), particularly in the context of social rewards. Yet, this line of research has focused largely on positive social reinforcement, while little is known about the processing of negative reinforcement in individuals with ASD. METHODS: The present study examined neural responses to social negative reinforcement (a face displaying negative affect) and non-social negative reinforcement (monetary loss) in children with ASD relative to typically developing children, using functional magnetic resonance imaging (fMRI). RESULTS: We found that children with ASD demonstrated hypoactivation of the right caudate nucleus while anticipating non-social negative reinforcement and hypoactivation of a network of frontostriatal regions (including the nucleus accumbens, caudate nucleus, and putamen) while anticipating social negative reinforcement. In addition, activation of the right caudate nucleus during non-social negative reinforcement was associated with individual differences in social motivation. CONCLUSIONS: These results suggest that atypical responding to negative reinforcement in children with ASD may contribute to social motivational deficits in this population. En ligne : http://dx.doi.org/10.1186/s11689-015-9107-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347

Neural Mechanisms of Reward Prediction Error in Autism Spectrum Disorder / Maya G. MOSNER in Autism Research and Treatment, 2019 (2019)  

Public ISBD [article]  inAutism Research and Treatment > 2019 (2019) . - 10 p. Titre : Neural Mechanisms of Reward Prediction Error in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Maya G. MOSNER, Auteur ; R. Edward MCLAURIN, Auteur ; Jessica L. KINARD, Auteur ; Shabnam HAKIMI, Auteur ; Jacob PARELMAN, Auteur ; Jasmine S. SHAH, Auteur ; Joshua BIZZELL, Auteur ; Rachel K. GREENE, Auteur ; Paul M. CERNASOV, Auteur ; Erin WALSH, Auteur ; Merideth A. ADDICOTT, Auteur ; Tory EISENLOHR-MOUL, Auteur ; R. McKell CARTER, Auteur ; Gabriel S. DICHTER, Auteur Article en page(s) : 10 p. Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Few studies have explored neural mechanisms of reward learning in ASD despite evidence of behavioral impairments of predictive abilities in ASD. To investigate the neural correlates of reward prediction errors in ASD, 16 adults with ASD and 14 typically developing controls performed a prediction error task during fMRI scanning. Results revealed greater activation in the ASD group in the left paracingulate gyrus during signed prediction errors and the left insula and right frontal pole during thresholded unsigned prediction errors. Findings support atypical neural processing of reward prediction errors in ASD in frontostriatal regions critical for prediction coding and reward learning. Results provide a neural basis for impairments in reward learning that may contribute to traits common in ASD (e.g., intolerance of unpredictability). En ligne : https://doi.org/10.1155/2019/5469191 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=402 [article] Neural Mechanisms of Reward Prediction Error in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Maya G. MOSNER, Auteur ; R. Edward MCLAURIN, Auteur ; Jessica L. KINARD, Auteur ; Shabnam HAKIMI, Auteur ; Jacob PARELMAN, Auteur ; Jasmine S. SHAH, Auteur ; Joshua BIZZELL, Auteur ; Rachel K. GREENE, Auteur ; Paul M. CERNASOV, Auteur ; Erin WALSH, Auteur ; Merideth A. ADDICOTT, Auteur ; Tory EISENLOHR-MOUL, Auteur ; R. McKell CARTER, Auteur ; Gabriel S. DICHTER, Auteur . - 10 p. Langues : Anglais (eng) in Autism Research and Treatment > 2019 (2019) . - 10 p. Index. décimale : PER Périodiques Résumé : Few studies have explored neural mechanisms of reward learning in ASD despite evidence of behavioral impairments of predictive abilities in ASD. To investigate the neural correlates of reward prediction errors in ASD, 16 adults with ASD and 14 typically developing controls performed a prediction error task during fMRI scanning. Results revealed greater activation in the ASD group in the left paracingulate gyrus during signed prediction errors and the left insula and right frontal pole during thresholded unsigned prediction errors. Findings support atypical neural processing of reward prediction errors in ASD in frontostriatal regions critical for prediction coding and reward learning. Results provide a neural basis for impairments in reward learning that may contribute to traits common in ASD (e.g., intolerance of unpredictability). En ligne : https://doi.org/10.1155/2019/5469191 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=402

Neural Mechanisms of Social and Nonsocial Reward Prediction Errors in Adolescents with Autism Spectrum Disorder / Jessica Lynn KINARD in Autism Research, 13-5 (May 2020)  

Public ISBD [article]  inAutism Research > 13-5 (May 2020) . - p.715-728 Titre : Neural Mechanisms of Social and Nonsocial Reward Prediction Errors in Adolescents with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Jessica Lynn KINARD, Auteur ; Maya Gelman MOSNER, Auteur ; Rachel Kirsten GREENE, Auteur ; Merideth A. ADDICOTT, Auteur ; Joshua BIZZELL, Auteur ; Chris PETTY, Auteur ; Paul M. CERNASOV, Auteur ; Erin WALSH, Auteur ; Tory EISENLOHR-MOUL, Auteur ; Ronald MCKELL CARTER, Auteur ; Marcy MCLAMB, Auteur ; Alissa HOPPER, Auteur ; Rebecca SUKHU, Auteur ; Gabriel S. DICHTER, Auteur Article en page(s) : p.715-728 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  fMRI  reward prediction error  social  social-communication Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by impaired predictive abilities; however, the neural mechanisms subsuming reward prediction errors in ASD are poorly understood. In the current study, we investigated neural responses during social and nonsocial reward prediction errors in 22 adolescents with ASD (ages 12-17) and 20 typically developing control adolescents (ages 12-18). Participants performed a reward prediction error task using both social (i.e., faces) and nonsocial (i.e., objects) rewards during a functional magnetic resonance imaging scan. Reward prediction errors were defined in two ways: (a) the signed prediction error, the difference between the experienced and expected reward; and (b) the thresholded unsigned prediction error, the difference between expected and unexpected outcomes regardless of magnitude. During social reward prediction errors, the ASD group demonstrated the following differences relative to the TD group: (a) signed prediction error: decreased activation in the right precentral gyrus and increased activation in the right frontal pole; and (b) thresholded unsigned prediction error: increased activation in the right anterior cingulate gyrus and bilateral precentral gyrus. Groups did not differ in brain activation during nonsocial reward prediction errors. Within the ASD group, exploratory analyses revealed that reaction times and social-communication impairments were related to precentral gyrus activation during social prediction errors. These findings elucidate the neural mechanisms of social reward prediction errors in ASD and suggest that ASD is characterized by greater neural atypicalities during social, relative to nonsocial, reward prediction errors in ASD. Autism Res 2020, 13: 715-728. (c) 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We used brain imaging to evaluate differences in brain activation in adolescents with autism while they performed tasks that involved learning about social and nonsocial information. We found no differences in brain responses during the nonsocial condition, but differences during the social condition of the learning task. This study provides evidence that autism may involve different patterns of brain activation when learning about social information. En ligne : http://dx.doi.org/10.1002/aur.2273 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422 [article] Neural Mechanisms of Social and Nonsocial Reward Prediction Errors in Adolescents with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Jessica Lynn KINARD, Auteur ; Maya Gelman MOSNER, Auteur ; Rachel Kirsten GREENE, Auteur ; Merideth A. ADDICOTT, Auteur ; Joshua BIZZELL, Auteur ; Chris PETTY, Auteur ; Paul M. CERNASOV, Auteur ; Erin WALSH, Auteur ; Tory EISENLOHR-MOUL, Auteur ; Ronald MCKELL CARTER, Auteur ; Marcy MCLAMB, Auteur ; Alissa HOPPER, Auteur ; Rebecca SUKHU, Auteur ; Gabriel S. DICHTER, Auteur . - p.715-728. Langues : Anglais (eng) in Autism Research > 13-5 (May 2020) . - p.715-728 Mots-clés : autism spectrum disorder  fMRI  reward prediction error  social  social-communication Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is characterized by impaired predictive abilities; however, the neural mechanisms subsuming reward prediction errors in ASD are poorly understood. In the current study, we investigated neural responses during social and nonsocial reward prediction errors in 22 adolescents with ASD (ages 12-17) and 20 typically developing control adolescents (ages 12-18). Participants performed a reward prediction error task using both social (i.e., faces) and nonsocial (i.e., objects) rewards during a functional magnetic resonance imaging scan. Reward prediction errors were defined in two ways: (a) the signed prediction error, the difference between the experienced and expected reward; and (b) the thresholded unsigned prediction error, the difference between expected and unexpected outcomes regardless of magnitude. During social reward prediction errors, the ASD group demonstrated the following differences relative to the TD group: (a) signed prediction error: decreased activation in the right precentral gyrus and increased activation in the right frontal pole; and (b) thresholded unsigned prediction error: increased activation in the right anterior cingulate gyrus and bilateral precentral gyrus. Groups did not differ in brain activation during nonsocial reward prediction errors. Within the ASD group, exploratory analyses revealed that reaction times and social-communication impairments were related to precentral gyrus activation during social prediction errors. These findings elucidate the neural mechanisms of social reward prediction errors in ASD and suggest that ASD is characterized by greater neural atypicalities during social, relative to nonsocial, reward prediction errors in ASD. Autism Res 2020, 13: 715-728. (c) 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We used brain imaging to evaluate differences in brain activation in adolescents with autism while they performed tasks that involved learning about social and nonsocial information. We found no differences in brain responses during the nonsocial condition, but differences during the social condition of the learning task. This study provides evidence that autism may involve different patterns of brain activation when learning about social information. En ligne : http://dx.doi.org/10.1002/aur.2273 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422

Neural Mechanisms of Vicarious Reward Processing in Adults with Autism Spectrum Disorder / Rachel K. GREENE in Autism Research and Treatment, 2020 (2020)  

Public ISBD [article]  inAutism Research and Treatment > 2020 (2020) Titre : Neural Mechanisms of Vicarious Reward Processing in Adults with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Rachel K. GREENE, Auteur ; Cara R. DAMIANO-GOODWIN, Auteur ; Erin WALSH, Auteur ; Joshua BIZZELL, Auteur ; Gabriel S. DICHTER, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Previous studies examining the neural substrates of reward processing in ASD have explored responses to rewards for oneself but not rewards earned for others (i.e., vicarious reward). This omission is notable given that vicarious reward processing is a critical component of creating and maintaining social relationships. The current study examined the neural mechanisms of vicarious reward processing in 15 adults with ASD and 15 age- and gender-matched typically developing controls. Individuals with ASD demonstrated attenuated activation of reward-related regions during vicarious reward processing. Altered connectivity was also observed in individuals with ASD during reward receipt. These findings of altered neural sensitivity to vicarious reward processing may represent a mechanism that hinders the development of social abilities in ASD. En ligne : https://doi.org/10.1155/2020/8014248 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=438 [article] Neural Mechanisms of Vicarious Reward Processing in Adults with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Rachel K. GREENE, Auteur ; Cara R. DAMIANO-GOODWIN, Auteur ; Erin WALSH, Auteur ; Joshua BIZZELL, Auteur ; Gabriel S. DICHTER, Auteur. Langues : Anglais (eng) in Autism Research and Treatment > 2020 (2020) Index. décimale : PER Périodiques Résumé : Previous studies examining the neural substrates of reward processing in ASD have explored responses to rewards for oneself but not rewards earned for others (i.e., vicarious reward). This omission is notable given that vicarious reward processing is a critical component of creating and maintaining social relationships. The current study examined the neural mechanisms of vicarious reward processing in 15 adults with ASD and 15 age- and gender-matched typically developing controls. Individuals with ASD demonstrated attenuated activation of reward-related regions during vicarious reward processing. Altered connectivity was also observed in individuals with ASD during reward receipt. These findings of altered neural sensitivity to vicarious reward processing may represent a mechanism that hinders the development of social abilities in ASD. En ligne : https://doi.org/10.1155/2020/8014248 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=438

The effects of intranasal oxytocin on reward circuitry responses in children with autism spectrum disorder / R. K. GREENE in Journal of Neurodevelopmental Disorders, 10-1 (December 2018)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 10-1 (December 2018) . - 12 p. Titre : The effects of intranasal oxytocin on reward circuitry responses in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : R. K. GREENE, Auteur ; M. SPANOS, Auteur ; C. ALDERMAN, Auteur ; E. WALSH, Auteur ; Joshua BIZZELL, Auteur ; M. G. MOSNER, Auteur ; J. L. KINARD, Auteur ; G. D. STUBER, Auteur ; Tara CHANDRASEKHAR, Auteur ; L. C. POLITTE, Auteur ; L. SIKICH, Auteur ; Gabriel S. DICHTER, Auteur Année de publication : 2018 Article en page(s) : 12 p. Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Oxytocin  Reward  fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Intranasal oxytocin (OT) has been shown to improve social communication functioning of individuals with autism spectrum disorder (ASD) and, thus, has received considerable interest as a potential ASD therapeutic agent. Although preclinical research indicates that OT modulates the functional output of the mesocorticolimbic dopamine system that processes rewards, no clinical brain imaging study to date has examined the effects of OT on this system using a reward processing paradigm. To address this, we used an incentive delay task to examine the effects of a single dose of intranasal OT, versus placebo (PLC), on neural responses to social and nonsocial rewards in children with ASD. METHODS: In this placebo-controlled double-blind study, 28 children and adolescents with ASD (age: M = 13.43 years, SD = 2.36) completed two fMRI scans, one after intranasal OT administration and one after PLC administration. During both scanning sessions, participants completed social and nonsocial incentive delay tasks. Task-based neural activation and connectivity were examined to assess the impact of OT relative to PLC on mesocorticolimbic brain responses to social and nonsocial reward anticipation and outcomes. RESULTS: Central analyses compared the OT and PLC conditions. During nonsocial reward anticipation, there was greater activation in the right nucleus accumbens (NAcc), left anterior cingulate cortex (ACC), bilateral orbital frontal cortex (OFC), left superior frontal cortex, and right frontal pole (FP) during the OT condition relative to PLC. Alternatively, during social reward anticipation and outcomes, there were no significant increases in brain activation during the OT condition relative to PLC. A Treatment Group x Reward Condition interaction revealed relatively greater activation in the right NAcc, right caudate nucleus, left ACC, and right OFC during nonsocial relative to social reward anticipation during the OT condition relative to PLC. Additionally, these analyses revealed greater activation during nonsocial reward outcomes during the OT condition relative to PLC in the right OFC and left FP. Finally, functional connectivity analyses generally revealed changes in frontostriatal connections during the OT condition relative to PLC in response to nonsocial, but not social, rewards. CONCLUSIONS: The effects of intranasal OT administration on mesocorticolimbic brain systems that process rewards in ASD were observable primarily during the processing of nonsocial incentive salience stimuli. These findings have implications for understanding the effects of OT on neural systems that process rewards, as well as for experimental trials of novel ASD treatments developed to ameliorate social communication impairments in ASD. En ligne : http://dx.doi.org/10.1186/s11689-018-9228-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=386 [article] The effects of intranasal oxytocin on reward circuitry responses in children with autism spectrum disorder [Texte imprimé et/ou numérique] / R. K. GREENE, Auteur ; M. SPANOS, Auteur ; C. ALDERMAN, Auteur ; E. WALSH, Auteur ; Joshua BIZZELL, Auteur ; M. G. MOSNER, Auteur ; J. L. KINARD, Auteur ; G. D. STUBER, Auteur ; Tara CHANDRASEKHAR, Auteur ; L. C. POLITTE, Auteur ; L. SIKICH, Auteur ; Gabriel S. DICHTER, Auteur . - 2018 . - 12 p. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 10-1 (December 2018) . - 12 p. Mots-clés : Autism spectrum disorder  Oxytocin  Reward  fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Intranasal oxytocin (OT) has been shown to improve social communication functioning of individuals with autism spectrum disorder (ASD) and, thus, has received considerable interest as a potential ASD therapeutic agent. Although preclinical research indicates that OT modulates the functional output of the mesocorticolimbic dopamine system that processes rewards, no clinical brain imaging study to date has examined the effects of OT on this system using a reward processing paradigm. To address this, we used an incentive delay task to examine the effects of a single dose of intranasal OT, versus placebo (PLC), on neural responses to social and nonsocial rewards in children with ASD. METHODS: In this placebo-controlled double-blind study, 28 children and adolescents with ASD (age: M = 13.43 years, SD = 2.36) completed two fMRI scans, one after intranasal OT administration and one after PLC administration. During both scanning sessions, participants completed social and nonsocial incentive delay tasks. Task-based neural activation and connectivity were examined to assess the impact of OT relative to PLC on mesocorticolimbic brain responses to social and nonsocial reward anticipation and outcomes. RESULTS: Central analyses compared the OT and PLC conditions. During nonsocial reward anticipation, there was greater activation in the right nucleus accumbens (NAcc), left anterior cingulate cortex (ACC), bilateral orbital frontal cortex (OFC), left superior frontal cortex, and right frontal pole (FP) during the OT condition relative to PLC. Alternatively, during social reward anticipation and outcomes, there were no significant increases in brain activation during the OT condition relative to PLC. A Treatment Group x Reward Condition interaction revealed relatively greater activation in the right NAcc, right caudate nucleus, left ACC, and right OFC during nonsocial relative to social reward anticipation during the OT condition relative to PLC. Additionally, these analyses revealed greater activation during nonsocial reward outcomes during the OT condition relative to PLC in the right OFC and left FP. Finally, functional connectivity analyses generally revealed changes in frontostriatal connections during the OT condition relative to PLC in response to nonsocial, but not social, rewards. CONCLUSIONS: The effects of intranasal OT administration on mesocorticolimbic brain systems that process rewards in ASD were observable primarily during the processing of nonsocial incentive salience stimuli. These findings have implications for understanding the effects of OT on neural systems that process rewards, as well as for experimental trials of novel ASD treatments developed to ameliorate social communication impairments in ASD. En ligne : http://dx.doi.org/10.1186/s11689-018-9228-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=386

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