Probing the time course of head-motion cues integration during auditory scene analysis
Probing the time course of head-motion cues integration during auditory scene analysis
复制标题
探索听觉场景分析期间头部运动线索整合的时间过程
作者：
H. Kondo;I. Toshima;D. Pressnitzer;M. Kashino
听觉场景的感知组织是人类听者难以解决的重要问题。因此，它是可能的，从几个模态的线索被汇集用于听觉场景分析，包括与场景的主动探索相关的感觉运动线索。我们以前报告了一个强大的影响头部运动听觉流。流是指一种实验范式，其中听众听到纯音序列，并对他们对一个或多个称为流的主观源的感知进行评级。为了解开头部运动的影响（耳朵的声音线索，主观位置线索和运动线索的变化），我们使用了机器人远程呈现系统Telehead。我们发现，头部运动诱导知觉重组，即使在声学场景没有改变。在这里，我们重新分析了相同的数据，以探索感觉-运动整合的时间过程。我们发现，电机线索有一个不同的时间过程相比，声学或主观位置线索：电机线索影响知觉组织较早，时间较短，比其他线索，连续的积极和消极的贡献流。另一项实验控制了意志预期成分的影响，发现手臂或腿的运动对场景分析没有任何影响。这些数据提供了第一次调查的时间过程中的听觉场景分析任务的复杂整合的感觉-运动线索，他们建议松散的时间耦合所涉及的不同机制之间。
The perceptual organization of auditory scenes is a hard but important problem to solve for human listeners. It is thus likely that cues from several modalities are pooled for auditory scene analysis, including sensory-motor cues related to the active exploration of the scene. We previously reported a strong effect of head motion on auditory streaming. Streaming refers to an experimental paradigm where listeners hear sequences of pure tones, and rate their perception of one or more subjective sources called streams. To disentangle the effects of head motion (changes in acoustic cues at the ear, subjective location cues, and motor cues), we used a robotic telepresence system, Telehead. We found that head motion induced perceptual reorganization even when the acoustic scene had not changed. Here we reanalyzed the same data to probe the time course of sensory-motor integration. We show that motor cues had a different time course compared to acoustic or subjective location cues: motor cues impacted perceptual organization earlier and for a shorter time than other cues, with successive positive and negative contributions to streaming. An additional experiment controlled for the effects of volitional anticipatory components, and found that arm or leg movements did not have any impact on scene analysis. These data provide a first investigation of the time course of the complex integration of sensory-motor cues in an auditory scene analysis task, and they suggest a loose temporal coupling between the different mechanisms involved.
影响因子：
1.8
作者：
Meng, M;Tong, F
通讯作者：
Tong, F