Cognitive Control of Intentions for Voluntary Actions in Individuals With a High Level of Autistic Traits / Edita POLJAC in Journal of Autism and Developmental Disorders, 42-12 (December 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-12 (December 2012) . - p.2523-2533 Titre : Cognitive Control of Intentions for Voluntary Actions in Individuals With a High Level of Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : Edita POLJAC, Auteur ; Ervin POLJAC, Auteur ; Nick YEUNG, Auteur Article en page(s) : p.2523-2533 Langues : Anglais (eng) Mots-clés : Autism  Autism-Spectrum Quotient  Cognitive control  Perseveration  Repetitive behavior  Voluntary task switching Index. décimale : PER Périodiques Résumé : Impairments in cognitive control generating deviant adaptive cognition have been proposed to account for the strong preference for repetitive behavior in autism. We examined if this preference reflects intentional deficits rather than problems in task execution in the broader autism phenotype using the Autism-Spectrum Quotient (AQ). Participants chose between two tasks differing in their relative strength by indicating first their voluntary task choice and then responding to the subsequently presented stimulus. We observed a stronger repetition bias for the harder task in high AQ participants, with no other differences between the two groups. These findings indicate that the interference between competing tasks significantly contributes to repetitive behavior in autism by modulating the formation of task intentions when choosing tasks voluntarily. En ligne : http://dx.doi.org/10.1007/s10803-012-1509-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184 [article] Cognitive Control of Intentions for Voluntary Actions in Individuals With a High Level of Autistic Traits [Texte imprimé et/ou numérique] / Edita POLJAC, Auteur ; Ervin POLJAC, Auteur ; Nick YEUNG, Auteur . - p.2523-2533. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-12 (December 2012) . - p.2523-2533 Mots-clés : Autism  Autism-Spectrum Quotient  Cognitive control  Perseveration  Repetitive behavior  Voluntary task switching Index. décimale : PER Périodiques Résumé : Impairments in cognitive control generating deviant adaptive cognition have been proposed to account for the strong preference for repetitive behavior in autism. We examined if this preference reflects intentional deficits rather than problems in task execution in the broader autism phenotype using the Autism-Spectrum Quotient (AQ). Participants chose between two tasks differing in their relative strength by indicating first their voluntary task choice and then responding to the subsequently presented stimulus. We observed a stronger repetition bias for the harder task in high AQ participants, with no other differences between the two groups. These findings indicate that the interference between competing tasks significantly contributes to repetitive behavior in autism by modulating the formation of task intentions when choosing tasks voluntarily. En ligne : http://dx.doi.org/10.1007/s10803-012-1509-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184

Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits / Ervin POLJAC in Autism, 17-6 (November 2013)  

Public ISBD [article]  inAutism > 17-6 (November 2013) . - p.668-680 Titre : Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits Type de document : Texte imprimé et/ou numérique Auteurs : Ervin POLJAC, Auteur ; Edita POLJAC, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2013 Article en page(s) : p.668-680 Langues : Anglais (eng) Mots-clés : Autism spectrum quotient  Broader autistic phenotype  Face perception  Emotion recognition  Facial expression Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is among other things characterized by specific impairments in emotion processing. It is not clear, however, to what extent the typical decline in affective functioning is related to the specific autistic traits. We employed The Autism Spectrum-Quotient (AQ) to quantify autistic traits in a group of 500 healthy individuals and investigate whether we could detect similar difficulties in the perception of emotional expressions in a broader autistic phenotype. The group with high AQ score was less accurate and needed higher emotional content to recognize emotions of anger, disgust, and sadness. Our findings demonstrate a selective impairment in identification of emotional facial expressions in healthy individuals that is primarily related to the extent of autistic traits. En ligne : http://dx.doi.org/10.1177/1362361312455703 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218 [article] Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits [Texte imprimé et/ou numérique] / Ervin POLJAC, Auteur ; Edita POLJAC, Auteur ; Johan WAGEMANS, Auteur . - 2013 . - p.668-680. Langues : Anglais (eng) in Autism > 17-6 (November 2013) . - p.668-680 Mots-clés : Autism spectrum quotient  Broader autistic phenotype  Face perception  Emotion recognition  Facial expression Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is among other things characterized by specific impairments in emotion processing. It is not clear, however, to what extent the typical decline in affective functioning is related to the specific autistic traits. We employed The Autism Spectrum-Quotient (AQ) to quantify autistic traits in a group of 500 healthy individuals and investigate whether we could detect similar difficulties in the perception of emotional expressions in a broader autistic phenotype. The group with high AQ score was less accurate and needed higher emotional content to recognize emotions of anger, disgust, and sadness. Our findings demonstrate a selective impairment in identification of emotional facial expressions in healthy individuals that is primarily related to the extent of autistic traits. En ligne : http://dx.doi.org/10.1177/1362361312455703 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218

Understanding Behavioural Rigidity in Autism Spectrum Conditions: The Role of Intentional Control / Edita POLJAC in Journal of Autism and Developmental Disorders, 47-3 (March 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-3 (March 2017) . - p.714-727 Titre : Understanding Behavioural Rigidity in Autism Spectrum Conditions: The Role of Intentional Control Type de document : Texte imprimé et/ou numérique Auteurs : Edita POLJAC, Auteur ; Vincent HOOFS, Auteur ; Myrthe M. PRINCEN, Auteur ; Ervin POLJAC, Auteur Article en page(s) : p.714-727 Langues : Anglais (eng) Mots-clés : Cognitive control  Autism  Intentions  Task switching  Voluntary action Index. décimale : PER Périodiques Résumé : Although behavioural rigidity belongs to the core symptoms of autism spectrum conditions, little is known about its underlying cognitive mechanisms. The current study investigated the role of intentional control mechanisms in behavioural rigidity in autism. Autistic individuals and their matched controls were instructed to repeatedly choose between two simple cognitive tasks and to respond accordingly to the subsequently presented stimulus. Results showed that autistic participants chose to repeat tasks more often than their controls and when choosing to switch, they demonstrated larger performance costs. These findings illustrate that when required to make their own choices, autistic people demonstrate rigidity at different performance levels, suggesting that intentional control mechanisms might be important for a better understanding of behavioural rigidity in autism. En ligne : http://dx.doi.org/10.1007/s10803-016-3010-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304 [article] Understanding Behavioural Rigidity in Autism Spectrum Conditions: The Role of Intentional Control [Texte imprimé et/ou numérique] / Edita POLJAC, Auteur ; Vincent HOOFS, Auteur ; Myrthe M. PRINCEN, Auteur ; Ervin POLJAC, Auteur . - p.714-727. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-3 (March 2017) . - p.714-727 Mots-clés : Cognitive control  Autism  Intentions  Task switching  Voluntary action Index. décimale : PER Périodiques Résumé : Although behavioural rigidity belongs to the core symptoms of autism spectrum conditions, little is known about its underlying cognitive mechanisms. The current study investigated the role of intentional control mechanisms in behavioural rigidity in autism. Autistic individuals and their matched controls were instructed to repeatedly choose between two simple cognitive tasks and to respond accordingly to the subsequently presented stimulus. Results showed that autistic participants chose to repeat tasks more often than their controls and when choosing to switch, they demonstrated larger performance costs. These findings illustrate that when required to make their own choices, autistic people demonstrate rigidity at different performance levels, suggesting that intentional control mechanisms might be important for a better understanding of behavioural rigidity in autism. En ligne : http://dx.doi.org/10.1007/s10803-016-3010-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304

---

1 (1 - 3 / 3)