The diversity of lesion network mapping findings

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This paper comments on the lesion network mapping (LNM) framework, which uses lesion location and a normative brain connectome to infer network mechanisms in brain disorders, responding to a prior critique by Van den Heuvel et al. The authors argue that methodological errors and visualization biases in the earlier study affected its conclusions, specifically disputing the claim that LNM maps diverse circumscribed brain changes mostly to one outcome. They state that the earlier study’s conclusion is not supported by its own presented data, but the excerpt does not provide additional quantitative analyses or specific evidence details. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Abstract

Lesion network mapping (LNM) has emerged as a popular framework to map the network mechanism of brain disorders using lesions and normative brain connectome (NBC) 1 . It was first demonstrated in neurological symptoms and was rapidly extended to a broad range of brain disorders in the past decade. A recent study by Van den Heuvel et al. questioned the methodological foundations of LNM 2 . We here raise concerns regarding their errors and biases in the methodology and visualization. The conclusion of that study—LNM maps circumscribed brain changes mostly to one and the same outcome—is not supported by the data presented.
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Abstract Lesion network mapping (LNM) has emerged as a popular framework to map the network mechanism of brain disorders using lesions and normative brain connectome (NBC)1. It was first demonstrated in neurological symptoms and was rapidly extended to a broad range of brain disorders in the past decade. A recent study by Van den Heuvel et al. questioned the methodological foundations of LNM2. We here raise concerns regarding their errors and biases in the methodology and visualization. The conclusion of that study—LNM maps circumscribed brain changes mostly to one and the same outcome—is not supported by the data presented. Competing Interest Statement The authors have declared no competing interest. Copyright The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.

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europepmc
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