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Psychophysical data to study the brain network mechanisms involved in reorienting attention to salient events during goal-directed visual discrimination and search tasks

机译:在目标导向的视觉歧视和搜索任务期间研究对大脑网络机制研究了对突出事件的脑网络机制

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摘要

This article presents behavior and EEG dataset collected from 19 healthy human volunteers (10 females) in the age group of 21–29 (mean = 26.9, SD = ±2.15) years at National Brain Research Centre, India during a psychophysical paradigm customized to characterize the brain network interactions during saliency processing. We provide all the raw stimulus files used in developing the experimental paradigm of the linked research article “Organization of directed functional connectivity among nodes of ventral attention network reveals the common network mechanisms underlying saliency processing across distinct spatial and spatio-temporal scales” [1] for replication and use by researchers across various cohorts of the population. Pre-processed EEG time-series segmented into epochs corresponding to three experimental trial conditions, across two visual attention tasks testing the effect of salient distractors on goal-driven tasks are provided. The dataset also includes reaction times corresponding to individual trials. Additionally, structural MRI files corresponding to each individual and 3D EEG sensor locations of all volunteers are provided to assist in accurate source localization. Therefore, the presented dataset will not only facilitate the conventional time resolved EEG analysis like evoked activity and time-frequency analysis at the sensor level but will also facilitate the investigation of source level analysis like global coherence or phase-amplitude coupling within selected regions of the brain.
机译:本文介绍了19岁21-29岁(平均= 26.9,SD =±2.15)年龄组的19岁健康人类志愿者(10名女性)所收集的行为和EEG数据集在自定义为特征的心理物理范式期间显着处理过程中的大脑网络交互。我们提供开发链接研究文章实验范式的所有原始刺激文件“腹侧关注网络节点的定向功能连通性的组织揭示了跨不同空间和时空秤的常见网络机制”[1]用于复制和使用人口各种队列的研究人员。预处理的EEG定时序列分段为对应于三个实验试验条件的时期,横跨两个视觉关注任务,测试突出的干扰器对目标驱动任务的影响。数据集还包括对应于单个试验的反应时间。另外,提供对应于所有志愿者的每个单独的和3D EEG传感器位置的结构MRI文件,以帮助准确的源定位。因此,所提出的数据集不仅可以促进传统的时间分辨的EEG分析,如传感器水平的诱发活动和时频分析,但还将促进在所选区域内的全局相干或相位幅度耦合等源电平分析的调查脑。

著录项

  • 期刊名称 Data in Brief
  • 作者单位
  • 年(卷),期 2021(-1),-1
  • 年度 2021
  • 页码 -1
  • 总页数 7
  • 原文格式 PDF
  • 正文语种
  • 中图分类
  • 关键词

    机译:视觉注意;显着性;时间尺度;脑电图;

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