Imaging supra- versus sub-threshold perception: Towards a neural 'signature' of conscious experience

阈上感知与阈下感知的成像：走向意识体验的神经“特征”

• 批准号: DP0345481
• 负责人: Prof Leanne Williams
• 金额: $ 12.56万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0345481
• 关键词: Imaging; supra; versus; sub; threshold

This is the first study to combine spatial and temporal brain measures to test the prediction that 'conscious' (versus 'unconscious') emotion perception is distinguished by responses in cortical brain regions, and by later peaks in integrative brain activity. Two additional innovative features include the simultaneous measurement of arousal (as an independent index of responses to emotion, regardless of conscious awareness), and the use of psychophysical methods to establish objective thresholds for 'unconscious' and 'conscious' perception. Elucidating the neural basis of conscious emotion perception is important to understanding the mechanisms of unique human experience, and disorders of stress and anxiety.

这是第一个研究联合收割机空间和时间的大脑措施，以测试预测，“有意识的”（与“无意识的”）情绪感知是由大脑皮层区域的反应，并在整合的大脑活动后期高峰区分。两个额外的创新功能包括同时测量唤醒（作为对情绪反应的独立指数，无论有意识的意识如何），以及使用心理物理学方法来建立“无意识”和“有意识”感知的客观阈值。阐明有意识情绪感知的神经基础对于理解人类独特体验的机制以及压力和焦虑障碍具有重要意义。