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Influence of Event Duration and Impact Intensity on the Auditory Perception of Contact Severity

机译：事件持续时间和影响强度对接触严重程度的听觉感知的影响

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摘要

Previous research suggests that individuals can use sound to identify events, such as the approach of an object. It has been argued that the change in intensity over time (represented as t, tau) has the potential to be informative about when a target will arrive at the point of observation. The change in t (or t, tau dot) refers to the change in speed of an approaching object and, thus, is believed to provide information about the severity of a collision between two objects. An object decelerating at an insufficient rate will make hard contact with an object in its path, while sufficient deceleration will result in soft or no contact. With respect to audition, the change in sound intensity is informative about an object's speed of approach and the forceful-ness of a collision. The present study seeks to examine the extent to which participant perception of collision severity was affected by variations in the duration of the pre-collision event and by variations in the sound intensity associated with collision. The findings reveal participant judgments were significantly affected by variations of both factors, though variations in collision-related sound intensity had a greater impact. While the authors provide a number of reasons for why the results of the present study should be tentatively considered, it is believed tau dot, as currently considered, is incapable of explaining the perception of collision when relying solely on sound. The authors argue that modification of the t formula is necessary.
机译：先前的研究表明，个人可以使用声音来识别事件，例如对象的方法。有人认为，随着时间的推移，强度的变化（表示为t，tau）有可能了解目标何时到达观察点。 t（或t，tau dot）的变化是指接近对象的速度的变化，因此被认为提供了有关两个对象之间碰撞严重程度的信息。以不足速率减速的对象将与其路径中的对象进行紧密接触，而足够的减速将导致软或无接触。关于试镜，声音强度的变化对于对象的进速度和碰撞的有力性是有益的。本研究旨在检查参与者对碰撞严重程度的看法受到预碰撞事件持续时间的变化以及与碰撞相关的声音强度的变化的影响。研究结果表明，参与者的判断受到这两个因素的变化的显着影响，尽管与碰撞相关的声音强度的变化具有更大的影响。虽然作者提供了许多原因，以使为什么应考虑本研究的结果，但据当前认为，tau dot无法解释仅依靠声音时碰撞的感知。作者认为，必须修改T公式。

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