Object-based attention in complex, naturalistic auditory streams
Object-based attention in complex, naturalistic auditory streams
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DOI：
10.1038/s41598-019-39166-6
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发表时间：
2019-02-27
影响因子：
4.6
通讯作者：
Baldauf, Daniel
中科院分区：
文献类型：
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作者：
Marinato, Giorgio;Baldauf, Daniel
在视觉中，物体被描述为非空间注意力在许多自然环境中运作的“单位”。在这里，我们测试的想法，基于对象的注意力在听觉域生态有效的听觉场景，由两个空间和时间重叠的声音流（语音信号与环境音景实验1和实验2中的两个语音信号）。自上而下的注意力被引导到一个或另一个听觉流的非空间线索。为了测试高层次的，基于对象的注意力效应，我们引入了一个听觉重复检测任务，参与者必须检测听觉对象的简短重复，排除任何可能的混淆与空间或基于特征的注意力。与无效提示条件相比，参与者在有效提示条件下的反应明显更快，更准确，表明高水平，基于对象的听觉注意的强大提示有效性效应。
In vision, objects have been described as the 'units' on which non-spatial attention operates in many natural settings. Here, we test the idea of object-based attention in the auditory domain within ecologically valid auditory scenes, composed of two spatially and temporally overlapping sound streams (speech signal vs. environmental soundscapes in Experiment 1 and two speech signals in Experiment 2). Top-down attention was directed to one or the other auditory stream by a non-spatial cue. To test for high-level, object-based attention effects we introduce an auditory repetition detection task in which participants have to detect brief repetitions of auditory objects, ruling out any possible confounds with spatial or feature-based attention. The participants' responses were significantly faster and more accurate in the valid cue condition compared to the invalid cue condition, indicating a robust cue-validity effect of high-level, object-based auditory attention.