11 research outputs found

    The Human Phenotype Ontology in 2024: phenotypes around the world.

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    The Human Phenotype Ontology (HPO) is a widely used resource that comprehensively organizes and defines the phenotypic features of human disease, enabling computational inference and supporting genomic and phenotypic analyses through semantic similarity and machine learning algorithms. The HPO has widespread applications in clinical diagnostics and translational research, including genomic diagnostics, gene-disease discovery, and cohort analytics. In recent years, groups around the world have developed translations of the HPO from English to other languages, and the HPO browser has been internationalized, allowing users to view HPO term labels and in many cases synonyms and definitions in ten languages in addition to English. Since our last report, a total of 2239 new HPO terms and 49235 new HPO annotations were developed, many in collaboration with external groups in the fields of psychiatry, arthrogryposis, immunology and cardiology. The Medical Action Ontology (MAxO) is a new effort to model treatments and other measures taken for clinical management. Finally, the HPO consortium is contributing to efforts to integrate the HPO and the GA4GH Phenopacket Schema into electronic health records (EHRs) with the goal of more standardized and computable integration of rare disease data in EHRs

    Modulation of rostrolateral prefrontal cortex during cognitive introspection using real-time fmri

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    The main purpose of this study was to examine the ability of healthy individuals to gain control over RLPFC activation by making use of feedback provided to them in real-time about the level of activation in their RLPFC. It was hypothesized that RLPFC is involved in introspective evaluation of thought processes. It was also hypothesized that healthy volunteers could achieve improved modulation of their RLPFC activation by using real-time fMRI feedback from that region. Seven healthy volunteers completed a pre-training session, four to six training sessions, and a post-training session. Subjects were instructed to turn their attention toward their own thoughts in order to up-regulate, and turn their attention toward external sensations to down-regulate the target brain region. During the training sessions, subjects received feedback about their level of activation in bilateral RLPFC, while no feedback was provided during the pre- and post-training sessions. Group analysis of individual sessions revealed enhanced left RLPFC activation throughout the feedback training. In addition, direct comparison of post-training versus pre-training sessions resulted in a significant cluster of activation in left RLPFC. These findings are consistent with the hypothesized role of RLPFC in introspective evaluation of thought processes. They also demonstrate the feasibility of using real-time fMRI feedback training to achieve enhanced modulation of higher cognitive regions such as RLPFC. Finally, the findings underscore important limitations of real-time fMRI studies including global signal modulation and potential undesirable effects of feedback on task performance. Future studies will need to address these limitations.Medicine, Faculty ofGraduat
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