Effects of Anxiety on Interhemispheric Processing

焦虑对半球间加工的影响

• 批准号: 6358204
• 负责人: REBECCA J COMPTON
• 金额: $ 10.89万
• 依托单位: HAVERFORD COLLEGE
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6358204
• 关键词: angers; anxiety; clinical research; face expression; human subject; interhemispheric transfer; neural information processing; neuropsychology; pleasure; psychological stressor

DESCRIPTION (provided by investigator): Individuals with high levels of anxiety are known to exhibit cognitive processing abnormalities, such as heightened attention to potentially threatening information. Such processing abnormalities contribute to the pernicious thought patterns that can prolong clinical disorders. Yet, despite recent research describing attentional deficits in anxiety, little is currently known about the neural mechanisms contributing to these deficits. The present investigation examines the effects of anxiety on interhemispheric processing, a paradigmatic brain system for investigating selective attention. Prior research has demonstrated that interhemispheric processing, the division of relevant perceptual information between the left and right hemispheres, increases the cognitive capacity available for task performance and can aid in filtering out distracting, irrelevant information. Though many studies have investigated the interhemispheric processing of cognitive and perceptual information, virtually none have investigated the interhemispheric processing of emotional information. The present study is designed to meet three specific objectives: (1) the development of a measure of the interhemispheric transfer of emotional information; (2) examination of the effects of trait anxiety on interhemispheric transfer of emotional information; and (3) examination of the effects of evaluation stress on interhemispheric transfer of emotional information. The hypotheses to be tested are first, that trait-anxious individuals are deficient overall in their utilization of interhemispheric resources; and second, that failure to suppress task-irrelevant threatening information from being communicated between the hemispheres is a characteristic of both trait anxiety and evaluation stress. Together, the three stages of the project integrate cognitive and neuropsychological approaches to emotion to advance knowledge regarding the effects of anxiety on processing of emotional information in the brain.

描述（由研究者提供）：高度焦虑的个体 已知表现出认知处理异常，例如高度 注意潜在威胁信息。此类处理异常 助长有害的思维模式，从而延长临床时间 失调。然而，尽管最近的研究描述了注意力缺陷 目前对于焦虑的神经机制知之甚少 这些赤字。 本研究探讨焦虑对大脑半球间的影响 处理，用于研究选择性注意力的典型大脑系统。 先前的研究表明，大脑半球间的处理、分裂 左右半球之间的相关感知信息， 提高可用于执行任务的认知能力，并有助于 过滤掉分散注意力的、不相关的信息。尽管许多研究已经 研究了认知和知觉的半球间处理 信息，几乎没有人研究过半球间的处理 的情感信息。本研究旨在满足三个特定 目标：（1）开发半球间转移的测量方法 情感信息； (2) 特质焦虑的影响检验 情绪信息的半球间传递； (3) 检查 评价压力对情绪半球间传递的影响 信息。要检验的假设首先是特质焦虑 个体在大脑半球间的利用方面总体上存在缺陷 资源;其次，未能抑制与任务无关的威胁 半球之间交流的信息是一个特征 特质焦虑和评价压力。三个阶段相结合， 项目将认知和神经心理学方法整合到情感中 增进有关焦虑对情绪处理的影响的知识 大脑中的信息。