Duration reproduction with sensory feedback delay: differential involvement of perception and action time.
Duration reproduction with sensory feedback delay: differential involvement of perception and action time.
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DOI：
10.3389/fnint.2012.00095
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发表时间：
2012
影响因子：
3.5
通讯作者：
Müller HJ
中科院分区：
文献类型：
--
作者：
Ganzenmüller S;Shi Z;Müller HJ
以前的研究表明，自愿行为可以吸引随后的延迟反馈事件，而对感觉运动延迟的适应甚至可以逆转运动-感觉时间顺序判断。然而，感觉运动延迟是否以及如何影响持续繁殖仍不清楚。为了研究这一点，我们向持续时间复制任务的感觉反馈信号注入了起始延迟或偏移延迟。我们比较了(视觉、听觉)通道内和跨视听通道与反馈信号起始和偏移延迟操作的持续时间再现。我们发现，在视觉和听觉反馈信号的起始-延迟条件下，再现持续时间都延长了。在起效-延迟的第一次试验中，延长效果立即明显。然而，当反馈信号的起始时间早于动作时，延长效应减弱。反之，反馈信号的偏置延迟效应较弱，且仅在听觉偏置延迟条件下表现出缩短效应。这些发现表明，当反馈延迟时，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，他们严重依赖运动停止信号来进行持续复制。此外，在跨通道反馈条件下，听觉持续时间被高估，而视觉持续时间被高估，并且听觉持续时间的高估(或视觉持续时间的低估)与延迟操作无关。
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.