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Auditory Spatial Facilitation of Visual Search Performance: Effect of Cue Precision and Distractor Density

机译:视觉搜索性能的听觉空间促进:提示精度和干扰因素的影响。

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TWo experiments examined auditory spatial facilitation of visual search perfor- mance under conditions varying in auditory cue precision and visual distractor density The auditory cue was spatially coincided with the target, was displaced from the target by 6", or was uninformative. Distractors were manipulated global- ly (throughout the field) and locally (within 6.5" of the target) separately at densi- ties of 0/100, 20/100, and 80/100. In Experiment l, auditory cue precision was constant and distractor densities varied within a trial block; in Experiment 2, auditory pre- cision varied and distractor densities were constant within a trial block. Coincident auditory cues minimized local and global distractor effects in both expenments, suggesting that auditory spatial cues facilitate both target localiza- tion and identification. The effectiveness of displaced auditory cues depended on cue reliability: In some conditions, displaced cues caused higher mean search latencies than did centered cues, indicating that participants were unable to ignore inaccurate auditory stimuli. Actual or potential applications of this research include virtual audio environments and auditory displays in cockpits.
机译:两次实验检查了在听觉提示精度和视觉干扰因子密度不同的条件下,视觉搜索性能对听觉空间的促进作用。听觉提示在空间上与目标重合,偏离目标6“,或者没有提供信息。 -分别(在整个字段中)和局部(在目标的6.5英寸之内)以0 / 100、20 / 100和80/100的密度进行。在实验一中,听觉提示的精度是恒定的,并且牵张器的密度在试验区中是变化的。在实验2中,在一个试块内,听觉的精度是变化的,并且牵张器的密度是恒定的。巧合的听觉线索在两个方面都将局部和全局干扰因素的影响降到最低,这表明听觉空间线索有助于目标定位和识别。听觉提示的有效性取决于提示的可靠性:在某些情况下,提示引起的平均搜索等待时间要比居中提示更高,这表明参与者无法忽略不正确的听觉刺激。这项研究的实际或潜在应用包括虚拟音频环境和座舱中的听觉显示。

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