Atypical development of white matter microstructure of the corpus callosum in males with autism: a longitudinal investigation / Brittany G. TRAVERS in Molecular Autism, (March 2015)  

Public ISBD [article]  inMolecular Autism > (March 2015) . - p.1-15 Titre : Atypical development of white matter microstructure of the corpus callosum in males with autism: a longitudinal investigation Type de document : Texte imprimé et/ou numérique Auteurs : Brittany G. TRAVERS, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Nicholas LANGE, Auteur ; Dan DESTICHE, Auteur ; Chad ENNIS, Auteur ; Jared A. NIELSEN, Auteur ; Alyson L. FROEHLICH, Auteur ; Molly B. D. PRIGGE, Auteur ; P. Thomas FLETCHER, Auteur ; Jeffrey S. ANDERSON, Auteur ; Brandon A. ZIELINSKI, Auteur ; Erin D. BIGLER, Auteur ; Janet E. LAINHART, Auteur ; Andrew L. ALEXANDER, Auteur Article en page(s) : p.1-15 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The corpus callosum is the largest white matter structure in the brain, and it is the most consistently reported to be atypical in diffusion tensor imaging studies of autism spectrum disorder. In individuals with typical development, the corpus callosum is known to undergo a protracted development from childhood through young adulthood. However, no study has longitudinally examined the developmental trajectory of corpus callosum in autism past early childhood. En ligne : http://dx.doi.org/10.1186/s13229-015-0001-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=277 [article] Atypical development of white matter microstructure of the corpus callosum in males with autism: a longitudinal investigation [Texte imprimé et/ou numérique] / Brittany G. TRAVERS, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Nicholas LANGE, Auteur ; Dan DESTICHE, Auteur ; Chad ENNIS, Auteur ; Jared A. NIELSEN, Auteur ; Alyson L. FROEHLICH, Auteur ; Molly B. D. PRIGGE, Auteur ; P. Thomas FLETCHER, Auteur ; Jeffrey S. ANDERSON, Auteur ; Brandon A. ZIELINSKI, Auteur ; Erin D. BIGLER, Auteur ; Janet E. LAINHART, Auteur ; Andrew L. ALEXANDER, Auteur . - p.1-15. Langues : Anglais (eng) in Molecular Autism > (March 2015) . - p.1-15 Index. décimale : PER Périodiques Résumé : The corpus callosum is the largest white matter structure in the brain, and it is the most consistently reported to be atypical in diffusion tensor imaging studies of autism spectrum disorder. In individuals with typical development, the corpus callosum is known to undergo a protracted development from childhood through young adulthood. However, no study has longitudinally examined the developmental trajectory of corpus callosum in autism past early childhood. En ligne : http://dx.doi.org/10.1186/s13229-015-0001-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=277

Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism / Brittany G. TRAVERS in Journal of Autism and Developmental Disorders, 45-9 (September 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.3030-3040 Titre : Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism Type de document : Texte imprimé et/ou numérique Auteurs : Brittany G. TRAVERS, Auteur ; Erin D. BIGLER, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; Danica SAMSIN, Auteur ; Alyson FROEHLICH, Auteur ; Molly D. B. PRIGGE, Auteur ; Tyler C. DUFFIELD, Auteur ; Nicholas LANGE, Auteur ; Andrew L. ALEXANDER, Auteur ; Janet E. LAINHART, Auteur Article en page(s) : p.3030-3040 Langues : Anglais (eng) Mots-clés : Autism  Motor  Diffusion tensor imaging  Brainstem  Grip strength  Finger tapping Index. décimale : PER Périodiques Résumé : Mounting evidence suggests that poorer motor skills may be related to more severe autism symptoms. This study investigated if atypical white matter microstructure in the brain mediated the relationship between motor skills and ASD symptom severity. Sixty-seven males with ASD and 42 males with typical development (5–33 years old) completed a diffusion tensor imaging scan and measures of grip strength, finger tapping, and autism symptom severity. Within the ASD group, weaker grip strength predicted more severe autism symptoms. Fractional anisotropy of the brainstem’s corticospinal tract predicted both grip strength and autism symptom severity and mediated the relationship between the two. These findings suggest that brainstem white matter may contribute to autism symptoms and grip strength in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2467-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Brainstem White Matter Predicts Individual Differences in Manual Motor Difficulties and Symptom Severity in Autism [Texte imprimé et/ou numérique] / Brittany G. TRAVERS, Auteur ; Erin D. BIGLER, Auteur ; Do P. M. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; Danica SAMSIN, Auteur ; Alyson FROEHLICH, Auteur ; Molly D. B. PRIGGE, Auteur ; Tyler C. DUFFIELD, Auteur ; Nicholas LANGE, Auteur ; Andrew L. ALEXANDER, Auteur ; Janet E. LAINHART, Auteur . - p.3030-3040. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.3030-3040 Mots-clés : Autism  Motor  Diffusion tensor imaging  Brainstem  Grip strength  Finger tapping Index. décimale : PER Périodiques Résumé : Mounting evidence suggests that poorer motor skills may be related to more severe autism symptoms. This study investigated if atypical white matter microstructure in the brain mediated the relationship between motor skills and ASD symptom severity. Sixty-seven males with ASD and 42 males with typical development (5–33 years old) completed a diffusion tensor imaging scan and measures of grip strength, finger tapping, and autism symptom severity. Within the ASD group, weaker grip strength predicted more severe autism symptoms. Fractional anisotropy of the brainstem’s corticospinal tract predicted both grip strength and autism symptom severity and mediated the relationship between the two. These findings suggest that brainstem white matter may contribute to autism symptoms and grip strength in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2467-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Diffusion Tensor Imaging in Autism Spectrum Disorder: A Review / Brittany G. TRAVERS in Autism Research, 5-5 (October 2012)  

Public ISBD [article]  inAutism Research > 5-5 (October 2012) . - p.289-313 Titre : Diffusion Tensor Imaging in Autism Spectrum Disorder: A Review Type de document : Texte imprimé et/ou numérique Auteurs : Brittany G. TRAVERS, Auteur ; Nagesh ADLURU, Auteur ; Chad ENNIS, Auteur ; Do P. M. TROMP, Auteur ; Dan DESTICHE, Auteur ; Sam DORAN, Auteur ; Erin D. BIGLER, Auteur ; Nicholas LANGE, Auteur ; Janet E. LAINHART, Auteur ; Andrew A. ALEXANDER, Auteur Article en page(s) : p.289-313 Langues : Anglais (eng) Mots-clés : diffusion tensor imaging  neuroimaging  autism  white matter Index. décimale : PER Périodiques Résumé : White matter tracts of the brain allow neurons and neuronal networks to communicate and function with high efficiency. The aim of this review is to briefly introduce diffusion tensor imaging methods that examine white matter tracts and then to give an overview of the studies that have investigated white matter integrity in the brains of individuals with autism spectrum disorder (ASD). From the 48 studies we reviewed, persons with ASD tended to have decreased fractional anisotropy and increased mean diffusivity in white matter tracts spanning many regions of the brain but most consistently in regions such as the corpus callosum, cingulum, and aspects of the temporal lobe. This decrease in fractional anisotropy was often accompanied by increased radial diffusivity. Additionally, the review suggests possible atypical lateralization in some white matter tracts of the brain and a possible atypical developmental trajectory of white matter microstructure in persons with ASD. Clinical implications and future research directions are discussed. Autism Res 2012, 5: 289–313. © 2012 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1243 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=183 [article] Diffusion Tensor Imaging in Autism Spectrum Disorder: A Review [Texte imprimé et/ou numérique] / Brittany G. TRAVERS, Auteur ; Nagesh ADLURU, Auteur ; Chad ENNIS, Auteur ; Do P. M. TROMP, Auteur ; Dan DESTICHE, Auteur ; Sam DORAN, Auteur ; Erin D. BIGLER, Auteur ; Nicholas LANGE, Auteur ; Janet E. LAINHART, Auteur ; Andrew A. ALEXANDER, Auteur . - p.289-313. Langues : Anglais (eng) in Autism Research > 5-5 (October 2012) . - p.289-313 Mots-clés : diffusion tensor imaging  neuroimaging  autism  white matter Index. décimale : PER Périodiques Résumé : White matter tracts of the brain allow neurons and neuronal networks to communicate and function with high efficiency. The aim of this review is to briefly introduce diffusion tensor imaging methods that examine white matter tracts and then to give an overview of the studies that have investigated white matter integrity in the brains of individuals with autism spectrum disorder (ASD). From the 48 studies we reviewed, persons with ASD tended to have decreased fractional anisotropy and increased mean diffusivity in white matter tracts spanning many regions of the brain but most consistently in regions such as the corpus callosum, cingulum, and aspects of the temporal lobe. This decrease in fractional anisotropy was often accompanied by increased radial diffusivity. Additionally, the review suggests possible atypical lateralization in some white matter tracts of the brain and a possible atypical developmental trajectory of white matter microstructure in persons with ASD. Clinical implications and future research directions are discussed. Autism Res 2012, 5: 289–313. © 2012 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1243 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=183

Longitudinal development of thalamic and internal capsule microstructure in autism spectrum disorder / K. MCLAUGHLIN in Autism Research, 11-3 (March 2018)  

Public ISBD [article]  inAutism Research > 11-3 (March 2018) . - p.450-462 Titre : Longitudinal development of thalamic and internal capsule microstructure in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : K. MCLAUGHLIN, Auteur ; B. G. TRAVERS, Auteur ; O. I. DADALKO, Auteur ; D. C. DEAN, Auteur ; D. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; A. FREEMAN, Auteur ; M. D. PRIGGE, Auteur ; A. FROEHLICH, Auteur ; T. C. DUFFIELD, Auteur ; B. A. ZIELINSKI, Auteur ; Erin D. BIGLER, Auteur ; N. LANGE, Auteur ; Jeffrey S. ANDERSON, Auteur ; A. L. ALEXANDER, Auteur ; J. E. LAINHART, Auteur Article en page(s) : p.450-462 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  diffusion magnetic resonance imaging  internal capsule  thalamus  white matter Index. décimale : PER Périodiques Résumé : The thalamus is a key sensorimotor relay area that is implicated in autism spectrum disorder (ASD). However, it is unknown how the thalamus and white-matter structures that contain thalamo-cortical fiber connections (e.g., the internal capsule) develop from childhood into adulthood and whether this microstructure relates to basic motor challenges in ASD. We used diffusion weighted imaging in a cohort-sequential design to assess longitudinal development of the thalamus, and posterior- and anterior-limbs of the internal capsule (PLIC and ALIC, respectively) in 89 males with ASD and 56 males with typical development (3-41 years; all verbal). Our results showed that the group with ASD exhibited different developmental trajectories of microstructure in all regions, demonstrating childhood group differences that appeared to approach and, in some cases, surpass the typically developing group in adolescence and adulthood. The PLIC (but not ALIC nor thalamus) mediated the relation between age and finger-tapping speed in both groups. Yet, the gap in finger-tapping speed appeared to widen at the same time that the between-group gap in the PLIC appeared to narrow. Overall, these results suggest that childhood group differences in microstructure of the thalamus and PLIC become less robust in adolescence and adulthood. Further, finger-tapping speed appears to be mediated by the PLIC in both groups, but group differences in motor speed that widen during adolescence and adulthood suggest that factors beyond the microstructure of the thalamus and internal capsule may contribute to atypical motor profiles in ASD. Autism Res 2018, 11: 450-462. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Microstructure of the thalamus, a key sensory and motor brain area, appears to develop differently in individuals with autism spectrum disorder (ASD). Microstructure is important because it informs us of the density and organization of different brain tissues. During childhood, thalamic microstructure was distinct in the ASD group compared to the typically developing group. However, these group differences appeared to narrow with age, suggesting that the thalamus continues to dynamically change in ASD into adulthood. En ligne : http://dx.doi.org/10.1002/aur.1909 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 [article] Longitudinal development of thalamic and internal capsule microstructure in autism spectrum disorder [Texte imprimé et/ou numérique] / K. MCLAUGHLIN, Auteur ; B. G. TRAVERS, Auteur ; O. I. DADALKO, Auteur ; D. C. DEAN, Auteur ; D. TROMP, Auteur ; Nagesh ADLURU, Auteur ; Dan DESTICHE, Auteur ; A. FREEMAN, Auteur ; M. D. PRIGGE, Auteur ; A. FROEHLICH, Auteur ; T. C. DUFFIELD, Auteur ; B. A. ZIELINSKI, Auteur ; Erin D. BIGLER, Auteur ; N. LANGE, Auteur ; Jeffrey S. ANDERSON, Auteur ; A. L. ALEXANDER, Auteur ; J. E. LAINHART, Auteur . - p.450-462. Langues : Anglais (eng) in Autism Research > 11-3 (March 2018) . - p.450-462 Mots-clés : autism spectrum disorder  diffusion magnetic resonance imaging  internal capsule  thalamus  white matter Index. décimale : PER Périodiques Résumé : The thalamus is a key sensorimotor relay area that is implicated in autism spectrum disorder (ASD). However, it is unknown how the thalamus and white-matter structures that contain thalamo-cortical fiber connections (e.g., the internal capsule) develop from childhood into adulthood and whether this microstructure relates to basic motor challenges in ASD. We used diffusion weighted imaging in a cohort-sequential design to assess longitudinal development of the thalamus, and posterior- and anterior-limbs of the internal capsule (PLIC and ALIC, respectively) in 89 males with ASD and 56 males with typical development (3-41 years; all verbal). Our results showed that the group with ASD exhibited different developmental trajectories of microstructure in all regions, demonstrating childhood group differences that appeared to approach and, in some cases, surpass the typically developing group in adolescence and adulthood. The PLIC (but not ALIC nor thalamus) mediated the relation between age and finger-tapping speed in both groups. Yet, the gap in finger-tapping speed appeared to widen at the same time that the between-group gap in the PLIC appeared to narrow. Overall, these results suggest that childhood group differences in microstructure of the thalamus and PLIC become less robust in adolescence and adulthood. Further, finger-tapping speed appears to be mediated by the PLIC in both groups, but group differences in motor speed that widen during adolescence and adulthood suggest that factors beyond the microstructure of the thalamus and internal capsule may contribute to atypical motor profiles in ASD. Autism Res 2018, 11: 450-462. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Microstructure of the thalamus, a key sensory and motor brain area, appears to develop differently in individuals with autism spectrum disorder (ASD). Microstructure is important because it informs us of the density and organization of different brain tissues. During childhood, thalamic microstructure was distinct in the ASD group compared to the typically developing group. However, these group differences appeared to narrow with age, suggesting that the thalamus continues to dynamically change in ASD into adulthood. En ligne : http://dx.doi.org/10.1002/aur.1909 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352

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