ERP STUDIES OF ATTENTION FOLLOWING PARIETAL DAMAGE

顶叶损伤后注意力的 ERP 研究

• 批准号: 2546310
• 负责人: Amishi Parag Jha
• 金额: $ 1.45万
• 依托单位: UNIVERSITY OF CALIFORNIA AT DAVIS
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/2546310
• 关键词: attention; behavioral /social science research tag; brain electrical activity; brain injury; clinical research; cues; evoked potentials; human subject; neural information processing; parietal lobe /cortex; psychomotor reaction time; sensory feedback; space perception; visual perception; attention; behavioral /social science research tag; brain electrical activity; brain injury; clinical research; cues; evoked potentials; human subject; neural information processing; parietal lobe /cortex; psychomotor reaction time; sensory feedback; space perception; visual perception

Visual-spatial selective attention is an essential brain function that enables human observers to select and process relevant information. The parietal lobes have long been implicated in this function. Although many studies have contributed significant information about the behavioral impairments in patients with parietal damage, little is known about the locus of information processing deficits in these patients. The experiments described in this proposal will investigate the role of the parietal lobes in the initial sensory processing of information as well as attentional modulation and orienting. To this end, patients with focal lesions will be tested in spatial attention paradigms. It is hypothesized that attentionaI deficits in these patients are manifest in part by impairments in the ability to attentionally modulate sensory information. Event-related potentials as well as response times will be recorded to index the precise processing stages during which these impairments occur.

视觉空间选择性关注是必不可少的大脑功能 使人类观察者能够选择和处理相关信息。 顶叶长期以来一直与该功能有关。 尽管许多研究已经贡献了有关的重要信息 顶叶损害患者的行为障碍，几乎没有 有关信息处理缺陷的源头 患者。本提案中描述的实验将调查 顶叶在初始感官处理中的作用 信息以及注意调制和定向。对此 最后，将在空间注意力中测试患有局灶性病变的患者 范式。假设这些注意力缺陷 患者部分受到的能力损害 注意调节感官信息。事件相关的电位 以及响应时间将被记录以索引精确 处理这些障碍的处理阶段。