Abstract

In two experiments, horizontal and vertical orientated sounds moved in parabolas. Participants had to touch a screen to indicate where and when a virtual moving ball would cross a visible line. We predicted that due to the sensitivity of the auditory system to temporal information, manipulations of pitch should affect temporal errors more than spatial errors. Stimuli were sound sources at five different pitches moving along a parabola produced through loudspeakers mounted around a touch screen. Results showed pitch effects on spatial constant and spatial variable errors when the parabola was horizontally oriented (Exp. 1), and on temporal constant errors in vertically oriented parabolas (Exp. 2). We conclude that temporal and spatial precision in interception tasks were affected differently by pitch manipulations and require consideration in future studies when assessing the impact of auditory information on catching virtually moving balls.

摘要

在两个实验中，水平和垂直方向的声音以抛物线移动。参与者必须触摸屏幕以指示虚拟移动球何时何地越过可见线。我们预测，由于听觉系统对时间信息的敏感性，对音高的操纵应该比空间误差更能影响时间误差。刺激是通过安装在触摸屏周围的扬声器产生的沿抛物线移动的五个不同音高的声源。结果表明，当抛物线为水平方向（实验 1）时，间距对空间常数和空间变量误差的影响，以及对垂直抛物线的时间常数误差（实验 2）的影响。