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首页> 美国卫生研究院文献>Frontiers in Integrative Neuroscience >Duration reproduction with sensory feedback delay: differential involvement of perception and action time
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Duration reproduction with sensory feedback delay: differential involvement of perception and action time

机译：具有感觉反馈延迟的持续时间再现：感知和动作时间的不同参与

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Previous research has shown that voluntary action can attract subsequent, delayed feedback events toward the action, and adaptation to the sensorimotor delay can even reverse motor-sensory temporal order judgments. However, whether and how sensorimotor delay affects duration reproduction is still unclear. To investigate this, we injected an onset- or offset-delay to the sensory feedback signal from a duration reproduction task. We compared duration reproductions within (visual, auditory) modality and across audiovisual modalities with feedback signal onset- and offset-delay manipulations. We found that the reproduced duration was lengthened in both visual and auditory feedback signal onset-delay conditions. The lengthening effect was evident immediately, on the first trial with the onset-delay. However, when the onset of the feedback signal was prior to the action, the lengthening effect was diminished. In contrast, a shortening effect was found with feedback signal offset-delay, though the effect was weaker and manifested only in the auditory offset-delay condition. These findings indicate that participants tend to mix the onset of action and the feedback signal more when the feedback is delayed, and they heavily rely on motor-stop signals for the duration reproduction. Furthermore, auditory duration was overestimated compared to visual duration in crossmodal feedback conditions, and the overestimation of auditory duration (or the underestimation of visual duration) was independent of the delay manipulation.
机译：先前的研究表明，自愿行为可以吸引后续的，延迟的反馈事件，并且对感觉运动延迟的适应甚至可以逆转运动感觉的时间顺序判断。然而，尚不清楚感觉运动延迟是否以及如何影响持续时间的再现。为了对此进行研究，我们向持续时间重现任务的感官反馈信号注入了起始或偏移延迟。我们比较了在（视觉，听觉）模态和跨视听模态的持续时间复制与反馈信号的开始和偏移延迟操作。我们发现，在视觉和听觉反馈信号发作延迟条件下，复制的时间都延长了。在首次试验中出现延迟的情况下，加长效果立即明显。但是，当反馈信号的作用早于作用开始时，延长作用就会减弱。相比之下，虽然反馈信号偏移延迟较弱，并且仅在听觉偏移延迟条件下才表现出缩短的效果。这些发现表明，当反馈被延迟时，参与者倾向于将动作的开始和反馈信号更多地混合在一起，并且他们严重依赖于电动机停止信号来进行持续时间的再现。此外，与交叉模式反馈条件下的视觉持续时间相比，听觉持续时间被高估了，听觉持续时间的高估（或视觉持续时间的低估）与延迟操纵无关。

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