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Affective neural response to restricted interests in autism spectrum disorders / Carissa J. CASCIO in Journal of Child Psychology and Psychiatry, 55-2 (February 2014)
[article]
Titre : Affective neural response to restricted interests in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Carissa J. CASCIO, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Jessica L. HEACOCK, Auteur ; Kimberly B. SCHAUDER, Auteur ; Whitney A. LORING, Auteur ; Baxter P. ROGERS, Auteur ; Jennifer R. PRYWELLER, Auteur ; Cassandra R. NEWSOM, Auteur ; Jurnell COCKHREN, Auteur ; Aize CAO, Auteur ; Scott BOLTON, Auteur Article en page(s) : p.162-171 Langues : Anglais (eng) Mots-clés : Autism restricted interests reward repetitive behavior fMRI insula salience Index. décimale : PER Périodiques Résumé : Background Restricted interests are a class of repetitive behavior in autism spectrum disorders (ASD) whose intensity and narrow focus often contribute to significant interference with daily functioning. While numerous neuroimaging studies have investigated executive circuits as putative neural substrates of repetitive behavior, recent work implicates affective neural circuits in restricted interests. We sought to explore the role of affective neural circuits and determine how restricted interests are distinguished from hobbies or interests in typical development. Methods We compared a group of children with ASD to a typically developing (TD) group of children with strong interests or hobbies, employing parent report, an operant behavioral task, and functional imaging with personalized stimuli based on individual interests. Results While performance on the operant task was similar between the two groups, parent report of intensity and interference of interests was significantly higher in the ASD group. Both the ASD and TD groups showed increased BOLD response in widespread affective neural regions to the pictures of their own interest. When viewing pictures of other children's interests, the TD group showed a similar pattern, whereas BOLD response in the ASD group was much more limited. Increased BOLD response in the insula and anterior cingulate cortex distinguished the ASD from the TD group, and parent report of the intensity and interference with daily life of the child's restricted interest predicted insula response. Conclusions While affective neural network response and operant behavior are comparable in typical and restricted interests, the narrowness of focus that clinically distinguishes restricted interests in ASD is reflected in more interference in daily life and aberrantly enhanced insula and anterior cingulate response to individuals’ own interests in the ASD group. These results further support the involvement of affective neural networks in repetitive behaviors in ASD. En ligne : http://dx.doi.org/10.1111/jcpp.12147 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=221
in Journal of Child Psychology and Psychiatry > 55-2 (February 2014) . - p.162-171[article] Affective neural response to restricted interests in autism spectrum disorders [Texte imprimé et/ou numérique] / Carissa J. CASCIO, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Jessica L. HEACOCK, Auteur ; Kimberly B. SCHAUDER, Auteur ; Whitney A. LORING, Auteur ; Baxter P. ROGERS, Auteur ; Jennifer R. PRYWELLER, Auteur ; Cassandra R. NEWSOM, Auteur ; Jurnell COCKHREN, Auteur ; Aize CAO, Auteur ; Scott BOLTON, Auteur . - p.162-171.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 55-2 (February 2014) . - p.162-171
Mots-clés : Autism restricted interests reward repetitive behavior fMRI insula salience Index. décimale : PER Périodiques Résumé : Background Restricted interests are a class of repetitive behavior in autism spectrum disorders (ASD) whose intensity and narrow focus often contribute to significant interference with daily functioning. While numerous neuroimaging studies have investigated executive circuits as putative neural substrates of repetitive behavior, recent work implicates affective neural circuits in restricted interests. We sought to explore the role of affective neural circuits and determine how restricted interests are distinguished from hobbies or interests in typical development. Methods We compared a group of children with ASD to a typically developing (TD) group of children with strong interests or hobbies, employing parent report, an operant behavioral task, and functional imaging with personalized stimuli based on individual interests. Results While performance on the operant task was similar between the two groups, parent report of intensity and interference of interests was significantly higher in the ASD group. Both the ASD and TD groups showed increased BOLD response in widespread affective neural regions to the pictures of their own interest. When viewing pictures of other children's interests, the TD group showed a similar pattern, whereas BOLD response in the ASD group was much more limited. Increased BOLD response in the insula and anterior cingulate cortex distinguished the ASD from the TD group, and parent report of the intensity and interference with daily life of the child's restricted interest predicted insula response. Conclusions While affective neural network response and operant behavior are comparable in typical and restricted interests, the narrowness of focus that clinically distinguishes restricted interests in ASD is reflected in more interference in daily life and aberrantly enhanced insula and anterior cingulate response to individuals’ own interests in the ASD group. These results further support the involvement of affective neural networks in repetitive behaviors in ASD. En ligne : http://dx.doi.org/10.1111/jcpp.12147 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=221 Altered functional organization within the insular cortex in adult males with high-functioning autism spectrum disorder: evidence from connectivity-based parcellation / T. YAMADA in Molecular Autism, 7 (2016)
[article]
Titre : Altered functional organization within the insular cortex in adult males with high-functioning autism spectrum disorder: evidence from connectivity-based parcellation Type de document : Texte imprimé et/ou numérique Auteurs : T. YAMADA, Auteur ; T. ITAHASHI, Auteur ; M. NAKAMURA, Auteur ; H. WATANABE, Auteur ; M. KURODA, Auteur ; H. OHTA, Auteur ; C. KANAI, Auteur ; N. KATO, Auteur ; R. I. HASHIMOTO, Auteur Article en page(s) : 41p. Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder/diagnostic imaging/pathology/physiopathology Brain Mapping/methods Case-Control Studies Cerebral Cortex/diagnostic imaging/pathology/physiopathology Cluster Analysis Functional Laterality Humans Image Interpretation, Computer-Assisted Magnetic Resonance Imaging Male Middle Aged Nerve Net/diagnostic imaging/pathology/physiopathology Neural Pathways/diagnostic imaging/pathology/physiopathology Autism spectrum disorder Connectivity-based functional parcellation Insula Resting-state functional magnetic resonance imaging Index. décimale : PER Périodiques Résumé : BACKGROUND: The insular cortex comprises multiple functionally differentiated sub-regions, each of which has different patterns of connectivity with other brain regions. Such diverse connectivity patterns are thought to underlie a wide range of insular functions, including cognitive, affective, and sensorimotor processing, many of which are abnormal in autism spectrum disorder (ASD). Although past neuroimaging studies of ASD have shown structural and functional abnormalities in the insula, possible alterations in the sub-regional organization of the insula and the functional characteristics of each sub-region have not been examined in the ASD brain. METHODS: Resting-state functional magnetic resonance imaging (rs-fMRI) data were acquired from 36 adult males with ASD and 38 matched typically developed (TD) controls. A data-driven clustering analysis was applied to rs-fMRI data of voxels in the left and right insula to automatically group voxels with similar intrinsic connectivity pattern into a cluster. After determining the optimal number of clusters based on information theoretic measures of variation of information and mutual information, functional parcellation patterns in both the left and the right insula were compared between the TD and ASD groups. Furthermore, functional profiles of each sub-region were meta-analytically decoded using Neurosynth and were compared between the groups. RESULTS: We observed notable alterations in the anterior sector of the left insula and the middle ventral sub-region of the right insula in the ASD brain. Meta-analytic decoding revealed that whereas the anterior sector of the left insula contained two functionally differentiated sub-regions for cognitive, sensorimotor, and emotional/affective functions in TD brain, only a single functional cluster for cognitive and sensorimotor functions was identified in the anterior sector in the ASD brain. In the right insula, the middle ventral sub-region, which is primarily specialized for sensory- and auditory-related functions, showed a significant volumetric increase in the ASD brain compared with the TD brain. CONCLUSIONS: The results indicate an altered organization of sub-regions in specific parts of the left and right insula of the ASD brain. The alterations in the left and right insula may constitute neural substrates underlying abnormalities in emotional/affective and sensory functions in ASD. En ligne : http://dx.doi.org/10.1186/s13229-016-0106-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329
in Molecular Autism > 7 (2016) . - 41p.[article] Altered functional organization within the insular cortex in adult males with high-functioning autism spectrum disorder: evidence from connectivity-based parcellation [Texte imprimé et/ou numérique] / T. YAMADA, Auteur ; T. ITAHASHI, Auteur ; M. NAKAMURA, Auteur ; H. WATANABE, Auteur ; M. KURODA, Auteur ; H. OHTA, Auteur ; C. KANAI, Auteur ; N. KATO, Auteur ; R. I. HASHIMOTO, Auteur . - 41p.
Langues : Anglais (eng)
in Molecular Autism > 7 (2016) . - 41p.
Mots-clés : Adult Autism Spectrum Disorder/diagnostic imaging/pathology/physiopathology Brain Mapping/methods Case-Control Studies Cerebral Cortex/diagnostic imaging/pathology/physiopathology Cluster Analysis Functional Laterality Humans Image Interpretation, Computer-Assisted Magnetic Resonance Imaging Male Middle Aged Nerve Net/diagnostic imaging/pathology/physiopathology Neural Pathways/diagnostic imaging/pathology/physiopathology Autism spectrum disorder Connectivity-based functional parcellation Insula Resting-state functional magnetic resonance imaging Index. décimale : PER Périodiques Résumé : BACKGROUND: The insular cortex comprises multiple functionally differentiated sub-regions, each of which has different patterns of connectivity with other brain regions. Such diverse connectivity patterns are thought to underlie a wide range of insular functions, including cognitive, affective, and sensorimotor processing, many of which are abnormal in autism spectrum disorder (ASD). Although past neuroimaging studies of ASD have shown structural and functional abnormalities in the insula, possible alterations in the sub-regional organization of the insula and the functional characteristics of each sub-region have not been examined in the ASD brain. METHODS: Resting-state functional magnetic resonance imaging (rs-fMRI) data were acquired from 36 adult males with ASD and 38 matched typically developed (TD) controls. A data-driven clustering analysis was applied to rs-fMRI data of voxels in the left and right insula to automatically group voxels with similar intrinsic connectivity pattern into a cluster. After determining the optimal number of clusters based on information theoretic measures of variation of information and mutual information, functional parcellation patterns in both the left and the right insula were compared between the TD and ASD groups. Furthermore, functional profiles of each sub-region were meta-analytically decoded using Neurosynth and were compared between the groups. RESULTS: We observed notable alterations in the anterior sector of the left insula and the middle ventral sub-region of the right insula in the ASD brain. Meta-analytic decoding revealed that whereas the anterior sector of the left insula contained two functionally differentiated sub-regions for cognitive, sensorimotor, and emotional/affective functions in TD brain, only a single functional cluster for cognitive and sensorimotor functions was identified in the anterior sector in the ASD brain. In the right insula, the middle ventral sub-region, which is primarily specialized for sensory- and auditory-related functions, showed a significant volumetric increase in the ASD brain compared with the TD brain. CONCLUSIONS: The results indicate an altered organization of sub-regions in specific parts of the left and right insula of the ASD brain. The alterations in the left and right insula may constitute neural substrates underlying abnormalities in emotional/affective and sensory functions in ASD. En ligne : http://dx.doi.org/10.1186/s13229-016-0106-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329 Brain response to viewing others being harmed in children with conduct disorder symptoms / Kalina J. MICHALSKA in Journal of Child Psychology and Psychiatry, 57-4 (April 2016)
[article]
Titre : Brain response to viewing others being harmed in children with conduct disorder symptoms Type de document : Texte imprimé et/ou numérique Auteurs : Kalina J. MICHALSKA, Auteur ; Thomas A. ZEFFIRO, Auteur ; Jean DECETY, Auteur Article en page(s) : p.510-519 Langues : Anglais (eng) Mots-clés : Conduct disorder callousness affective arousal emotional empathy insula anterior cingulate cortex Index. décimale : PER Périodiques Résumé : Background Deficient empathic processing is thought to foster conduct disorder (CD). It is important to determine the extent to which neural response associated with perceiving harm to others predicts CD symptoms and callous disregard for others. Methods A total of 107 9- to 11-year-old children (52 female) were recruited from pediatric and mental health clinics, representing a wide range of CD symptoms. Children were scanned with functional magnetic resonance imaging while viewing brief video clips of persons being harmed intentionally or accidentally. Results Perceiving harm evoked increased hemodynamic response in the anterior insula (aINS), anterior cingulate cortex (ACC), amygdala, periaqueductal gray (PAG), caudate, and inferior parietal lobe (IPL) across all participants. Intentionally caused, relative to unintentional harm was associated with greater activity in the aINS, amygdala, and temporal pole. There was an inverse association of number of CD symptoms with right posterior insula in both the Harm > No Harm and the Intentional > Unintentional Harm contrasts. Furthermore, an inverse association between callousness and posterior insula activation was found in the Harm > No Harm contrast, with the opposite pattern for reactive aggression scores. An interaction revealed a stronger association in girls between CD symptoms and the right posterior superior temporal sulcus (pSTS) in the Intentional Harm versus Unintentional Harm contrast. Conclusions Children with greater CD and callousness exhibit dampened hemodynamic response to viewing others being harmed in the insula, a region which plays a key role in empathy and emotional awareness. Sex differences in the neural correlates of CD were observed. En ligne : http://dx.doi.org/10.1111/jcpp.12474 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285
in Journal of Child Psychology and Psychiatry > 57-4 (April 2016) . - p.510-519[article] Brain response to viewing others being harmed in children with conduct disorder symptoms [Texte imprimé et/ou numérique] / Kalina J. MICHALSKA, Auteur ; Thomas A. ZEFFIRO, Auteur ; Jean DECETY, Auteur . - p.510-519.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 57-4 (April 2016) . - p.510-519
Mots-clés : Conduct disorder callousness affective arousal emotional empathy insula anterior cingulate cortex Index. décimale : PER Périodiques Résumé : Background Deficient empathic processing is thought to foster conduct disorder (CD). It is important to determine the extent to which neural response associated with perceiving harm to others predicts CD symptoms and callous disregard for others. Methods A total of 107 9- to 11-year-old children (52 female) were recruited from pediatric and mental health clinics, representing a wide range of CD symptoms. Children were scanned with functional magnetic resonance imaging while viewing brief video clips of persons being harmed intentionally or accidentally. Results Perceiving harm evoked increased hemodynamic response in the anterior insula (aINS), anterior cingulate cortex (ACC), amygdala, periaqueductal gray (PAG), caudate, and inferior parietal lobe (IPL) across all participants. Intentionally caused, relative to unintentional harm was associated with greater activity in the aINS, amygdala, and temporal pole. There was an inverse association of number of CD symptoms with right posterior insula in both the Harm > No Harm and the Intentional > Unintentional Harm contrasts. Furthermore, an inverse association between callousness and posterior insula activation was found in the Harm > No Harm contrast, with the opposite pattern for reactive aggression scores. An interaction revealed a stronger association in girls between CD symptoms and the right posterior superior temporal sulcus (pSTS) in the Intentional Harm versus Unintentional Harm contrast. Conclusions Children with greater CD and callousness exhibit dampened hemodynamic response to viewing others being harmed in the insula, a region which plays a key role in empathy and emotional awareness. Sex differences in the neural correlates of CD were observed. En ligne : http://dx.doi.org/10.1111/jcpp.12474 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285 Neural Correlates of Cardiac Interoceptive Focus Across Development: Implications for Social Symptoms in Autism Spectrum Disorder / Michelle D. FAILLA in Autism Research, 13-6 (June 2020)
[article]
Titre : Neural Correlates of Cardiac Interoceptive Focus Across Development: Implications for Social Symptoms in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Michelle D. FAILLA, Auteur ; Lauren K. BRYANT, Auteur ; Brynna H. HEFLIN, Auteur ; Lisa E. MASH, Auteur ; Kimberly B. SCHAUDER, Auteur ; Samona DAVIS, Auteur ; Madison B. GERDES, Auteur ; Amy WEITLAUF, Auteur ; Baxter P. ROGERS, Auteur ; Carissa J. CASCIO, Auteur Article en page(s) : p.908-920 Langues : Anglais (eng) Mots-clés : autism development fMRI insula interoception Index. décimale : PER Périodiques Résumé : Interoception involves the processing of sensory information relevant to physiological functioning and is integral to building self-awareness, emotional states, and modulating social behaviors. With the role of interoception in emotional processing and social functioning, there is growing interest in characterizing interoception in autism spectrum disorder (ASD), yet, there are mixed results regarding cardiac interoceptive accuracy in ASD. In this study, we explored the neural basis of cardiac interoception using an fMRI heartbeat-counting task in order to assess neural correlates of primary interoception. We predicted that interoceptive-specific response in the insula, a "hub" for interoception, would be related to ASD symptomatology. We investigated the relationship of insula responses during cardiac interoceptive focus and a self/caregiver-reported autism-related symptom scale (Social Responsiveness Scale-2 (SRS)). Participants included 46 individuals with autism spectrum disorder (ASD) (age 8-54, mean = 19.43?±?10.68?years) and 54 individuals with typical development for comparison (TC, age 8-53, mean = 21.43?±?10.41?years). We found no significant difference in cardiac interoceptive accuracy or neural response to cardiac interoception focus in ASD. Several insula subdivisions had a curvilinear relationship to age, peaking in early adulthood. Interoceptive-specific insula response was associated with adult self-report SRS scores; this association differed by diagnostic group and was not present for caregiver-reported scores. This work suggests that (a) there is no global deficit in cardiac interoception in ASD, but integrating interoceptive cues with social information may distinguish individuals with ASD, and (b) there is a developmental trajectory for interoceptive processing in the insula that may be relevant for socio-emotional health. Autism Res 2020, 13: 908-920. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We use internal sensory information from the body, such as signals from the heart, to understand our emotional response to the external world. We measured how accurately people with autism feel their heartbeat and how the brain responds to this type of information. We found no differences between the autism and comparison groups in how the brain senses heartbeats, or in how accurately people feel their heartbeats. However, for people with autism, brain responses while sensing heartbeats were related to social difficulties. This work suggests people with autism may use internal and external information in a different way. En ligne : http://dx.doi.org/10.1002/aur.2289 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427
in Autism Research > 13-6 (June 2020) . - p.908-920[article] Neural Correlates of Cardiac Interoceptive Focus Across Development: Implications for Social Symptoms in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Michelle D. FAILLA, Auteur ; Lauren K. BRYANT, Auteur ; Brynna H. HEFLIN, Auteur ; Lisa E. MASH, Auteur ; Kimberly B. SCHAUDER, Auteur ; Samona DAVIS, Auteur ; Madison B. GERDES, Auteur ; Amy WEITLAUF, Auteur ; Baxter P. ROGERS, Auteur ; Carissa J. CASCIO, Auteur . - p.908-920.
Langues : Anglais (eng)
in Autism Research > 13-6 (June 2020) . - p.908-920
Mots-clés : autism development fMRI insula interoception Index. décimale : PER Périodiques Résumé : Interoception involves the processing of sensory information relevant to physiological functioning and is integral to building self-awareness, emotional states, and modulating social behaviors. With the role of interoception in emotional processing and social functioning, there is growing interest in characterizing interoception in autism spectrum disorder (ASD), yet, there are mixed results regarding cardiac interoceptive accuracy in ASD. In this study, we explored the neural basis of cardiac interoception using an fMRI heartbeat-counting task in order to assess neural correlates of primary interoception. We predicted that interoceptive-specific response in the insula, a "hub" for interoception, would be related to ASD symptomatology. We investigated the relationship of insula responses during cardiac interoceptive focus and a self/caregiver-reported autism-related symptom scale (Social Responsiveness Scale-2 (SRS)). Participants included 46 individuals with autism spectrum disorder (ASD) (age 8-54, mean = 19.43?±?10.68?years) and 54 individuals with typical development for comparison (TC, age 8-53, mean = 21.43?±?10.41?years). We found no significant difference in cardiac interoceptive accuracy or neural response to cardiac interoception focus in ASD. Several insula subdivisions had a curvilinear relationship to age, peaking in early adulthood. Interoceptive-specific insula response was associated with adult self-report SRS scores; this association differed by diagnostic group and was not present for caregiver-reported scores. This work suggests that (a) there is no global deficit in cardiac interoception in ASD, but integrating interoceptive cues with social information may distinguish individuals with ASD, and (b) there is a developmental trajectory for interoceptive processing in the insula that may be relevant for socio-emotional health. Autism Res 2020, 13: 908-920. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We use internal sensory information from the body, such as signals from the heart, to understand our emotional response to the external world. We measured how accurately people with autism feel their heartbeat and how the brain responds to this type of information. We found no differences between the autism and comparison groups in how the brain senses heartbeats, or in how accurately people feel their heartbeats. However, for people with autism, brain responses while sensing heartbeats were related to social difficulties. This work suggests people with autism may use internal and external information in a different way. En ligne : http://dx.doi.org/10.1002/aur.2289 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427 Self-injuring adolescent girls exhibit insular cortex volumetric abnormalities that are similar to those seen in adults with borderline personality disorder / Theodore P. BEAUCHAINE in Development and Psychopathology, 31-4 (October 2019)
[article]
Titre : Self-injuring adolescent girls exhibit insular cortex volumetric abnormalities that are similar to those seen in adults with borderline personality disorder Type de document : Texte imprimé et/ou numérique Auteurs : Theodore P. BEAUCHAINE, Auteur ; Colin L. SAUDER, Auteur ; Christina M. DERBIDGE, Auteur ; L. L. UYEJI, Auteur Article en page(s) : p.1203-1212 Langues : Anglais (eng) Mots-clés : adolescence borderline personality disorder insula magnetic resonance imaging self-injury Index. décimale : PER Périodiques Résumé : Self-inflicted injury (SII) in adolescence is a serious public health concern that portends prospective vulnerability to internalizing and externalizing psychopathology, borderline personality development, suicide attempts, and suicide. To date, however, our understanding of neurobiological vulnerabilities to SII is limited. Behaviorally, affect dysregulation is common among those who self-injure. This suggests ineffective cortical modulation of emotion, as observed among adults with borderline personality disorder. In borderline samples, structural and functional abnormalities are observed in several frontal regions that subserve emotion regulation (e.g., anterior cingulate, insula, dorsolateral prefrontal cortex). However, no volumetric analyses of cortical brain regions have been conducted among self-injuring adolescents. We used voxel-based morphometry to compare cortical gray matter volumes between self-injuring adolescent girls, ages 13-19 years (n = 20), and controls (n = 20). Whole-brain analyses revealed reduced gray matter volumes among self-injurers in the insular cortex bilaterally, and in the right inferior frontal gyrus, an adjacent neural structure also implicated in emotion and self-regulation. Insular and inferior frontal gyrus gray matter volumes correlated inversely with self-reported emotion dysregulation, over-and-above effects of psychopathology. Findings are consistent with an emotion dysregulation construal of SII, and indicate structural abnormalities in some but not all cortical brain regions implicated in borderline personality disorder among adults. En ligne : http://dx.doi.org/10.1017/s0954579418000822 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406
in Development and Psychopathology > 31-4 (October 2019) . - p.1203-1212[article] Self-injuring adolescent girls exhibit insular cortex volumetric abnormalities that are similar to those seen in adults with borderline personality disorder [Texte imprimé et/ou numérique] / Theodore P. BEAUCHAINE, Auteur ; Colin L. SAUDER, Auteur ; Christina M. DERBIDGE, Auteur ; L. L. UYEJI, Auteur . - p.1203-1212.
Langues : Anglais (eng)
in Development and Psychopathology > 31-4 (October 2019) . - p.1203-1212
Mots-clés : adolescence borderline personality disorder insula magnetic resonance imaging self-injury Index. décimale : PER Périodiques Résumé : Self-inflicted injury (SII) in adolescence is a serious public health concern that portends prospective vulnerability to internalizing and externalizing psychopathology, borderline personality development, suicide attempts, and suicide. To date, however, our understanding of neurobiological vulnerabilities to SII is limited. Behaviorally, affect dysregulation is common among those who self-injure. This suggests ineffective cortical modulation of emotion, as observed among adults with borderline personality disorder. In borderline samples, structural and functional abnormalities are observed in several frontal regions that subserve emotion regulation (e.g., anterior cingulate, insula, dorsolateral prefrontal cortex). However, no volumetric analyses of cortical brain regions have been conducted among self-injuring adolescents. We used voxel-based morphometry to compare cortical gray matter volumes between self-injuring adolescent girls, ages 13-19 years (n = 20), and controls (n = 20). Whole-brain analyses revealed reduced gray matter volumes among self-injurers in the insular cortex bilaterally, and in the right inferior frontal gyrus, an adjacent neural structure also implicated in emotion and self-regulation. Insular and inferior frontal gyrus gray matter volumes correlated inversely with self-reported emotion dysregulation, over-and-above effects of psychopathology. Findings are consistent with an emotion dysregulation construal of SII, and indicate structural abnormalities in some but not all cortical brain regions implicated in borderline personality disorder among adults. En ligne : http://dx.doi.org/10.1017/s0954579418000822 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406 Brains of a feather flocking together? Peer and individual neurobehavioral risks for substance use across adolescence / J. KIM-SPOON in Development and Psychopathology, 31-5 (December 2019)
PermalinkEmotional decision-making in autism spectrum disorder: the roles of interoception and alexithymia / P. SHAH in Molecular Autism, 7 (2016)
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