Effects of unconscious stimuli on endogenous shifts of spatial attention

无意识刺激对空间注意力内源性转移的影响

• 批准号: 60168120
• 负责人: Professor Dr. Uwe F. Mattler
• 金额: --
• 依托单位: Abteilung für Experimentelle Psychologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/60168120?language=en
• 关键词: Effects; unconscious; stimuli; endogenous; shifts

To what extend is the direction of spatial visual attention modulated by unconscious visual stimuli? Previous research has shown that visual prime stimuli can affect behavior even when primes are made invisible by masking. When participants shift their attention in response to a cue either to auditory or visual target stimuli, the classification of these target stimuli is facilitated if a previously presented prime indicated the same (congruent trials) rather than the alternative target modality (incongruent trials). This project aims to examine whether spatial cueing is modulated by masked primes in the same way as non-spatial cueing. Moreover, the locus of these priming effects {perception, decision, internal/external responses) is examined by signal detection analyses and electrophysiological measures. If the prime is followed by a separate mask processing can be facilitated by incongruent rather than congruent primes ("inverse priming effects" or "negative compatibility effects"). A corresponding set of experiments aims to examine inverse priming in a spatial cueing paradigm. If spatial and non-spatial cue priming effects result from a common basic principle, both should follow the same laws. If this principle consists in the ability of unconscious visual stimuli to initiate internal responses, spatial cue priming effects should be located in the modulation of early target processing. In this case, a modified version of the accumulator model could account for this broad class of priming effects.

无意识的视觉刺激调节空间视觉注意的方向是什么？先前的研究表明，即使通过掩盖使数量看不见的情况下，视觉素刺激也会影响行为。当参与者响应提示对听觉或视觉目标刺激的提示转移注意力时，如果先前呈现的素数表示相同（一致的试验），而不是替代目标方式（不一致的试验），则可以促进这些目标刺激的分类。该项目旨在检查空间提示是否由掩盖素数与非空间提示相同的方式调节。此外，通过信号检测分析和电生理测量方法检查了这些启动效应（感知，决策，内部/外部反应）的基因座。如果素数紧随其后，则可以通过不一致而不是一致的素数（“反启动效应”或“负兼容效应”）来促进。一组相应的实验旨在检查空间提示范式中的反启动。如果空间和非空间提示启动作用是由共同的基本原理引起的，则两者都应遵循相同的法律。如果该原理在于无意识的视觉刺激启动内部反应的能力，则在早期目标处理的调节中应将空间提示启动效应定位。在这种情况下，累加器模型的修改版本可以解释这种广泛的启动效果。