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Translational Perspectives for Computational Neuroimaging

机译:计算神经影像学的翻译视角

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摘要

Functional neuroimaging has made fundamental contributions to our understanding of brain function. It remains challenging, however, to translate these advances into diagnostic tools for psychiatry. Promising new avenues for translation are provided by computational modeling of neuroimaging data. This article reviews contemporary frameworks for computational neuroimaging, with a focus on forward models linking unobservable brain states to measurements. These approaches-biophysical network models, generative models, and model-based fMRI analyses of neuromodulation-strive to move beyond statistical characterizations and toward mechanistic explanations of neuroimaging data. Focusing on schizophrenia as a paradigmatic spectrum disease, we review applications of these models to psychiatric questions, identify methodological challenges, and highlight trends of convergence among computational neuroimaging approaches. We conclude by outlining a translational neuromodeling strategy, highlighting the importance of openly available datasets from prospective patient studies for evaluating the clinical utility of computational models.
机译:功能性神经影像学对我们对脑功能的理解做出了根本性贡献。然而,将这些进展转化为精神病学的诊断工具仍然具有挑战性。神经影像数据的计算模型为翻译提供了有希望的新途径。本文回顾了计算神经成像的当代框架,重点是将不可观察的大脑状态与测量联系起来的正向模型。这些方法-生物物理网络模型,生成模型以及基于模型的神经调节功能fMRI分析,力求超越统计特征,转向对神经影像数据的机械解释。针对精神分裂症作为一种范式频谱疾病,我们回顾了这些模型在精神病学问题上的应用,确定了方法上的挑战,并强调了计算神经影像学方法之间趋同的趋势。最后,我们概述了翻译神经建模策略,强调了来自前瞻性患者研究的公开可用数据集对于评估计算模型的临床效用的重要性。

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