Precise vs. Approximate Numeracy in Stroke Participants

"v1.0.0: This dataset includes the processed final lesion images for a sample of left hemisphere chronic stroke survivors who completed a behavioral assessment of precise and approximate numeracy and language. Normalized and 4mm Gaussian smoothed lesion masks are provided along with the standard brain template. Normalized, skull stripped brains are provided for each subject. Final precise and approximate numeracy behavioral scores and aphasia severity are provided.

It is important to note that some structural images were acquired from medical records as clinical scans when research-grade acquisition was not possible. For a complete list of subjects that contain clinical-grade MR or CT (in three cases) data, see image_modality in participants.tsv. This affected the skull-stripping quality of some subject image files.

This dataset corresponds to the data described in: Duricy E, Durisko C, Fiez J.A. (2025). Lesion-symptom mapping reveals differential relationships between language and precise versus approximate numeracy. In review at Cortex.

v2.0.0: This version expands the dataset to include additional behavioral and imaging data for a sample of left hemisphere chronic stroke survivors.

Notable changes include the addition of a new subject (sub-105), factor loading scores for four factors derived from two factor analyses as reported in the manuscript listed below (listed in participants.tsv), and the inclusion of non-smoothed, normalized lesion masks for all subjects.

This dataset corresponds to the data described in: Duricy E, Durisko C, Fiez J.A. (2026). Using data-driven, lesion-symptom mapping to study the relationship between neural and theoretical components of numeracy. In review at Neuropsychologia."

v1.0.0：本数据集v1.0.0版本包含经预处理的最终病灶影像，样本来源于完成了精确与近似数能力及语言行为评估的左侧半球慢性卒中幸存者。数据集提供经标准化处理、4mm高斯平滑的病灶掩码（lesion masks），以及标准脑模板；同时为每位受试者提供经标准化处理的去颅骨脑部影像。此外还包含最终的精确与近似数能力行为评分，以及失语症严重程度数据。

需特别说明：部分结构影像因无法获取研究级扫描条件，故从临床病历中提取为临床扫描影像。如需获取包含临床级磁共振（MR）或计算机断层扫描（CT，共3例）数据的完整受试者列表，请参阅participants.tsv文件中的image_modality字段。此类情况对部分受试者影像文件的去颅骨处理质量造成了影响。

本数据集对应已投稿学术文献：Duricy E, Durisko C, Fiez J.A. (2025). 病灶-症状映射揭示语言与精确/近似数能力间的差异化关联。目前正在《皮层》（Cortex）期刊审稿中。

v2.0.0：本数据集v2.0.0版本对数据进行了扩展，新增了左侧半球慢性卒中幸存者样本的额外行为与影像数据。

本次更新的核心内容包括：新增受试者sub-105；添加了如下所列手稿中报道的、由两次因子分析得到的四个因子的因子载荷评分（详见participants.tsv文件）；为所有受试者提供未经平滑处理的标准化病灶掩码。

本数据集对应已投稿学术文献：Duricy E, Durisko C, Fiez J.A. (2026). 采用数据驱动的病灶-症状映射方法探究数能力的神经与理论成分间关联。目前正在《神经心理学》（Neuropsychologia）期刊审稿中。

搜集汇总

背景与挑战

背景概述

该数据集聚焦于左半球慢性中风幸存者，研究其精确与近似计算能力及语言功能，提供行为评估分数、病灶图像和脑模板数据。关键特点包括两个版本：v1.0.0包含标准化和4mm高斯平滑的病灶掩模，v2.0.0扩展了受试者样本并新增因子分析得分，用于病灶-症状映射分析以探索神经与计算能力的关系。