Electrophysiological correlates of individual differences in visual awareness

视觉意识个体差异的电生理相关性

• 批准号: 205686031
• 负责人: Privatdozentin Dr. Andrea Schankin
• 金额: --
• 依托单位: Lehrstuhl für Pervasive Computing Systems
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/205686031?language=en
• 关键词: Electrophysiological; correlates; individual; differences; visual

Biological theories of visual awareness are based on about 20 years of research. However, possible inter-individual differences in awareness remained unnoticed for the most part. In the current project, individual differences in visual awareness are investigated by the change blindness paradigm. Change blindness is the inability of observers to detect even large changes in the visual environment when they co-occur with other visual disruption. By using modern methods of statistical modelling, it is assed whether individual differences in the sensitivity for changes rely on a stable trait of a person or depend on situational factors. Furthermore, the way how information are selected from the environment (i.e., selective attention) is investigated as one possible source of inter-individual differences. In order to analyze cortical processes taking place during information processing the electrophysiological activity is recorded by the electroencephalogram (EEG). The expected results are significant from a theoretical perspective as well as from a practical point of view, for example for the design of working environments or the assessment of witness statements.

视觉感知的生物学理论是基于大约20年的研究。然而，意识上可能的个体间差异在很大程度上仍然没有被注意到。在当前的项目中，通过改变盲视范式来研究视觉知觉的个体差异。变化盲是指当视觉环境与其他视觉干扰同时发生时，观察者甚至无法察觉到视觉环境中的巨大变化。通过使用现代统计建模方法，可以判断变化敏感度的个体差异是取决于一个人的稳定特征还是取决于情景因素。此外，从环境中选择信息的方式(即选择性注意)被调查为个体间差异的一个可能来源。为了分析信息处理过程中发生的大脑皮层过程，用脑电(EEG)记录电生理活动。预期结果无论从理论角度还是从实践角度，例如对于工作环境的设计或对证人证词的评估，都具有重要意义。