ELAPS: Embodied Latency Adaptation and the Perception of Simultaneity

ELAPS：体现的延迟适应和同时性的感知

• 批准号: 191674407
• 负责人: Dr. Marieke Rohde
• 金额: --
• 依托单位: Arbeitsgruppe Kognitive Neurowissenschaften
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/191674407?language=en
• 关键词: ELAPS; Embodied; Latency; Adaptation; Perception

The human brain continually compensates for latencies between the senses and between action and perception. The previous project "ELAPS: Embodied Latency Adaptation and the Perception of Simultaneity" investigated the plasticity of visuomotor delay compensation mechanisms. This is a topic of great relevance for the design and use of digital interfaces (e.g., virtual reality, remote manipulation), where feedback delays are often inevitable. The project results show that humans adapt their motor behavior and time perception to additional feedback delays (sub-second range) given the right circumstances, e.g., a predictable task environment.The continuation proposal "ELASTiC: Embodied Latencies in Agency, Space, Time and Causation" extends these results with targeted additional experiments for a better understanding of the underlying mechanisms. This work will pay additional attention to the concept of agency (self-initiated action) in the context of visual feedback latencies. The results from the project ELAPS show, on the one hand, that agency is a key factor in delay adaptation and processing. On the other hand, sensorimotor timing determines the sense of agency (e.g., an action has to happen before a sensory event for humans to perceive a causal link). The project ELASTiC will investigate these interdependencies between agency and visuomotor timing using different strands of experiments on human behavior. (1) Experiments on motor control in the closed sensorimotor loop.Firstly, simple and controlled motor tasks (manual tracking) will be used to study the basic components of latency adaptation and processing. Secondly, experiments on delay adaptation in freely moving participants provide a more ecologically valid complement to this work. For this research, participants wear a portable virtual reality glasses. This work tests for generalization of delay adaptation, such as: If participants adapt to a visual delay on hand movements, will this learning transfer to the control of whole body movements with feedback delays?(2) Experiments on perceptionChanges in time and agency perception are studied using a multisensory psychophysics approach. Human perceptual judgments (e.g., on sensed agency or temporal order) are recorded and described as a function of a continuously varied physical variable (e.g., visuomotor latencies), in order to extract parameters that characterize the perceptual world.Especially the interface between these two approaches (perceptual learning in motor control; active agency perception) will increase our understanding of the plastic neural processes involved in action and perception. The theoretical framework of these results (multisensory integration, control theory) makes the project results suitable for engineering applications (e.g., interface design, human-machine-interaction) or even in medicine (e.g., disruptions of the sense of agency in schizophrenic patients).

人类的大脑不断地补偿感官之间以及动作和感知之间的延迟。以前的项目“ELAPS：视觉延迟补偿机制的可塑性研究。这是一个与数字接口的设计和使用非常相关的主题（例如，虚拟现实、远程操纵），其中反馈延迟通常是不可避免的。该项目的结果表明，在适当的情况下，人类会使其运动行为和时间感知适应额外的反馈延迟（亚秒范围），例如，“ELASTIC：在机构、空间、时间和因果关系方面的经验丰富”的延续提案通过有针对性的额外实验扩展了这些结果，以便更好地理解潜在的机制。这项工作将更加关注视觉反馈框架下的能动性（自发行动）概念。ELAPS项目的结果表明，一方面，代理是延迟适应和处理的关键因素。另一方面，感觉运动时间决定了代理感（例如，动作必须发生在人类感知因果联系的感觉事件之前）。ELASTIC项目将使用不同的人类行为实验来研究代理和视觉计时之间的相互依赖关系。(1)在闭合感觉运动回路中进行运动控制的实验。首先，将使用简单和受控的运动任务（手动跟踪）来研究潜伏期适应和处理的基本组成部分。第二，延迟适应自由移动的参与者的实验提供了一个更生态有效的补充这项工作。在这项研究中，参与者戴着便携式虚拟现实眼镜。这项工作测试了延迟适应的一般化，例如：如果参与者适应了手部运动的视觉延迟，这种学习会转移到具有反馈延迟的全身运动的控制上吗？(2)知觉实验采用多感官心理物理学方法研究了时间和代理知觉的变化。人类的感知判断（例如，在感测的作用或时间顺序上）被记录和描述为连续变化的物理变量的函数（例如，特别是这两种方法（运动控制中的知觉学习;主动代理知觉）之间的接口将增加我们对涉及动作和知觉的可塑性神经过程的理解。这些结果的理论框架（多感觉整合，控制理论）使项目结果适合工程应用（例如，界面设计、人机交互）或甚至在医学中（例如，精神分裂症患者的能动感中断）。