14 research outputs found

    Attitudes of the autism community to early autism research

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    Investigation into the earliest signs of autism in infants has become a significant sub-field of autism research. This work invokes specific ethical concerns such as: use of ‘at-risk’ language; communicating study findings to parents; and the future perspective of enrolled infants when they reach adulthood. The current study aimed to ground this research field in an understanding of the perspectives of members of the autism community. Following focus groups to identify topics, an online survey was distributed to autistic adults, parents of children with autism, and practitioners in health and education settings across eleven European countries. Survey respondents (n=2317) were positively disposed towards early autism research and there was significant overlap in their priorities for the field, and preferred language to describe infant research participants. However there were also differences including overall less favourable endorsement of early autism research by autistic adults relative to other groups and a dislike of the phrase ‘at-risk’ to describe infant participants, in all groups except healthcare practitioners. The findings overall indicate that the autism community in Europe is supportive of early autism research. Researchers should endeavour to maintain this by continuing to take community perspectives into account

    Systematic review and evaluation of meta-analysis methods for same data meta-analyses

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    International audienceResearchers using fMRI data have a wide range of analysis tools to model brain activity. This diversity of analytical approaches means there are many possible variations of the same imaging result. Thus, analyzing a dataset with a single approach can be misleading. Alternatively a multiverse analysis can be used, where multiple sets of results are obtained from running different pipelines on the same single dataset. The starting assumption for traditional meta-analyses is the independence among input data. Thus, here, we present "same data meta analysis" methods for examining multiple sets of neuroimaging results derived from a multiverse analysis, accounting for the inter-analysis dependence. The validity of this method is evaluated and compared against established meta-analysis methods, and we demonstrate the method on real world data from "NARPS", a multiverse analysis with 70 different statistic maps originating from the same data

    Systematic review and evaluation of meta-analysis methods for same data meta-analyses

    No full text
    International audienceResearchers using fMRI data have a wide range of analysis tools to model brain activity. This diversity of analytical approaches means there are many possible variations of the same imaging result. Thus, analyzing a dataset with a single approach can be misleading. Alternatively a multiverse analysis can be used, where multiple sets of results are obtained from running different pipelines on the same single dataset. The starting assumption for traditional meta-analyses is the independence among input data. Thus, here, we present "same data meta analysis" methods for examining multiple sets of neuroimaging results derived from a multiverse analysis, accounting for the inter-analysis dependence. The validity of this method is evaluated and compared against established meta-analysis methods, and we demonstrate the method on real world data from "NARPS", a multiverse analysis with 70 different statistic maps originating from the same data

    Systematic review and evaluation of meta-analysis methods for same data meta-analyses

    No full text
    International audienceResearchers using fMRI data have a wide range of analysis tools to model brain activity. This diversity of analytical approaches means there are many possible variations of the same imaging result. Thus, analyzing a dataset with a single approach can be misleading. Alternatively a multiverse analysis can be used, where multiple sets of results are obtained from running different pipelines on the same single dataset. The starting assumption for traditional meta-analyses is the independence among input data. Thus, here, we present "same data meta analysis" methods for examining multiple sets of neuroimaging results derived from a multiverse analysis, accounting for the inter-analysis dependence. The validity of this method is evaluated and compared against established meta-analysis methods, and we demonstrate the method on real world data from "NARPS", a multiverse analysis with 70 different statistic maps originating from the same data

    Revue et Ă©valuation des mĂ©thodes de mĂ©ta-analyse sur donnĂ©es corrĂ©lĂ©es pour l’analyse multivers

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    National audienceLes chercheurs utilisant des donnĂ©es d'IRMf de tĂąche disposent d'une vaste gamme d'outils d'analyse pour modĂ©liser l'activitĂ© cĂ©rĂ©brale. Cette diversitĂ© d'approches analytiques signifie qu'il existe de nombreuses variations possibles du mĂȘme rĂ©sultat d'imagerie. L'analyse d'un ensemble de donnĂ©es avec une seule approche peut donc ĂȘtre trompeuse. Une solution efficace est d’utiliser une analyse multivers, oĂč plusieurs ensembles de rĂ©sultats sont obtenus en exĂ©cutant diffĂ©rents pipelines sur les mĂȘmes donnĂ©es. Toutefois, le postulat de dĂ©part pour les mĂ©ta-analyses traditionnelles est l'indĂ©pendance des donnĂ©es d'entrĂ©e. C’est pourquoi nous prĂ©sentons ici des mĂ©thodes de "mĂ©ta-analyse sur mĂȘmes donnĂ©es" afin d’examiner plusieurs ensembles de rĂ©sultats de neuro-imagerie issus d'une analyse multivers, tout en tenant compte de la dĂ©pendance entre les analyses. La validitĂ© de ces mĂ©thodes est Ă©valuĂ©e et comparĂ©e aux mĂ©thodes de mĂ©ta-analyse traditionnelles. Nous Ă©valuons la validitĂ© des mĂ©thodes sur des simulations ainsi que sur des donnĂ©es rĂ©elles provenant de l’étude "NARPS" (Botvinik-Nezer et al. 2020), une analyse multivers avec 70 cartes statistiques issues des mĂȘmes donnĂ©es. Nos rĂ©sultats montrent que les mĂ©thodes dĂ©veloppĂ©es prĂ©cisĂ©ment pour l’analyse multivers sont valides et prĂ©sentent diffĂ©rents profils de significativitĂ© en fonction de leurs spĂ©cificitĂ©s. Ces diffĂ©rents rĂ©sultats illustrent diffĂ©rents types d’infĂ©rences que les analystes pourraient souhaiter mener en fonction des hypothĂšses sous-jacentes de leurs Ă©tudes

    Revue et Ă©valuation des mĂ©thodes de mĂ©ta-analyse sur donnĂ©es corrĂ©lĂ©es pour l’analyse multivers

    No full text
    National audienceLes chercheurs utilisant des donnĂ©es d'IRMf de tĂąche disposent d'une vaste gamme d'outils d'analyse pour modĂ©liser l'activitĂ© cĂ©rĂ©brale. Cette diversitĂ© d'approches analytiques signifie qu'il existe de nombreuses variations possibles du mĂȘme rĂ©sultat d'imagerie. L'analyse d'un ensemble de donnĂ©es avec une seule approche peut donc ĂȘtre trompeuse. Une solution efficace est d’utiliser une analyse multivers, oĂč plusieurs ensembles de rĂ©sultats sont obtenus en exĂ©cutant diffĂ©rents pipelines sur les mĂȘmes donnĂ©es. Toutefois, le postulat de dĂ©part pour les mĂ©ta-analyses traditionnelles est l'indĂ©pendance des donnĂ©es d'entrĂ©e. C’est pourquoi nous prĂ©sentons ici des mĂ©thodes de "mĂ©ta-analyse sur mĂȘmes donnĂ©es" afin d’examiner plusieurs ensembles de rĂ©sultats de neuro-imagerie issus d'une analyse multivers, tout en tenant compte de la dĂ©pendance entre les analyses. La validitĂ© de ces mĂ©thodes est Ă©valuĂ©e et comparĂ©e aux mĂ©thodes de mĂ©ta-analyse traditionnelles. Nous Ă©valuons la validitĂ© des mĂ©thodes sur des simulations ainsi que sur des donnĂ©es rĂ©elles provenant de l’étude "NARPS" (Botvinik-Nezer et al. 2020), une analyse multivers avec 70 cartes statistiques issues des mĂȘmes donnĂ©es. Nos rĂ©sultats montrent que les mĂ©thodes dĂ©veloppĂ©es prĂ©cisĂ©ment pour l’analyse multivers sont valides et prĂ©sentent diffĂ©rents profils de significativitĂ© en fonction de leurs spĂ©cificitĂ©s. Ces diffĂ©rents rĂ©sultats illustrent diffĂ©rents types d’infĂ©rences que les analystes pourraient souhaiter mener en fonction des hypothĂšses sous-jacentes de leurs Ă©tudes

    Presentation of the project 'Narps Open Pipeline'

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    International audienceShort presentation of the project 'Narps Open Pipeline' during the Neuro Openscience Workshop https://open-neuro.org/.The main goal is to create a codebase reproducing the 70 pipelines of the NARPS study and share this as an open resource for the communit

    Presentation of the project 'Narps Open Pipeline'

    No full text
    International audienceShort presentation of the project 'Narps Open Pipeline' during the Neuro Openscience Workshop https://open-neuro.org/.The main goal is to create a codebase reproducing the 70 pipelines of the NARPS study and share this as an open resource for the communit

    Grey matter volume and CSF biomarkers predict neuropsychological subtypes of MCI

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    We demonstrated that mild cognitive impairment (MCI) participants of the ADNI database (N=640)can be discriminated into 3 coherent and neuropsychologically-defined subgroups. Our clusteringapproach revealed an amnestic MCI, a mixed MCI and a false positive subgroup. Furthermore, weinvestigated the neurobiological foundation of these automatically extracted MCI subgroups.Classification modelling exposed that specific predictive features can be used to differentiateamnestic and mixed MCI from healthy controls: CSF AÎČ1-42 concentration for the former and CSF AÎČ1-42concentration, tau concentration as well as cortical atrophies (especially in the temporal and occipitallobes) for the latter. In contrast, false positive participants exhibited an identical profile to healthyparticipants in terms of cognitive performance, brain structure and CSF biomarker levels. Ourcomprehensive data-analytics strategy provide further evidence that multimodal neuropsychologicalsubtyping is both clinically and neurobiologically meaningful

    Grey matter volume and CSF biomarkers predict neuropsychological subtypes of MCI

    No full text
    We demonstrated that mild cognitive impairment (MCI) participants of the ADNI database (N=640)can be discriminated into 3 coherent and neuropsychologically-defined subgroups. Our clusteringapproach revealed an amnestic MCI, a mixed MCI and a false positive subgroup. Furthermore, weinvestigated the neurobiological foundation of these automatically extracted MCI subgroups.Classification modelling exposed that specific predictive features can be used to differentiateamnestic and mixed MCI from healthy controls: CSF AÎČ1-42 concentration for the former and CSF AÎČ1-42concentration, tau concentration as well as cortical atrophies (especially in the temporal and occipitallobes) for the latter. In contrast, false positive participants exhibited an identical profile to healthyparticipants in terms of cognitive performance, brain structure and CSF biomarker levels. Ourcomprehensive data-analytics strategy provide further evidence that multimodal neuropsychologicalsubtyping is both clinically and neurobiologically meaningful
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