在正常和受损的观察条件下,听觉和视觉线索在空间导航中的整合。

IF 2 4区 心理学 Q2 OPHTHALMOLOGY
Corey S Shayman, Maggie K McCracken, Hunter C Finney, Peter C Fino, Jeanine K Stefanucci, Sarah H Creem-Regehr
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引用次数: 0

摘要

听觉地标有助于视觉导航过程中的空间更新。虽然在导航者如何结合听觉和视觉地标方面已经发现了巨大的个体间差异,但在什么情况下使用听觉仍不清楚。此外,个体是否能将听觉线索与视觉线索最佳地结合起来,以减少知觉的不确定性或可变性,也没有得到充分的证实。在此,我们测试了虚拟导航任务中空间更新时的视听整合。在实验 1 中,24 名感觉敏锐度正常的人完成了一项三角归航任务,任务中既有视觉地标,也有听觉地标,或者两者兼有。此外,参与者还经历了第四种隐蔽空间冲突条件,即听觉地标相对于视觉地标旋转。与听觉地标相比,受试者通常更依赖视觉地标,而且使用多感官线索的准确性并不比仅使用视觉线索高。在实验 2 中,由 24 人组成的新小组完成了同样的任务,但采用了模糊过滤器的形式来模拟低视力,以增加视觉的不确定性。同样,参与者更依赖于视觉地标而不是听觉地标,没有出现多感官益处。与使用正常视力导航的组别相比,使用模糊导航的参与者并没有更多地依赖听觉。这些结果支持了之前的研究,研究表明,即使在视力受损的条件下,一次使用一种感官模式也足以进行空间更新。未来的研究可以调查导致听觉和视觉多感官线索组合策略不同的任务和参与者特定因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integration of auditory and visual cues in spatial navigation under normal and impaired viewing conditions.

Auditory landmarks can contribute to spatial updating during navigation with vision. Whereas large inter-individual differences have been identified in how navigators combine auditory and visual landmarks, it is still unclear under what circumstances audition is used. Further, whether or not individuals optimally combine auditory cues with visual cues to decrease the amount of perceptual uncertainty, or variability, has not been well-documented. Here, we test audiovisual integration during spatial updating in a virtual navigation task. In Experiment 1, 24 individuals with normal sensory acuity completed a triangular homing task with either visual landmarks, auditory landmarks, or both. In addition, participants experienced a fourth condition with a covert spatial conflict where auditory landmarks were rotated relative to visual landmarks. Participants generally relied more on visual landmarks than auditory landmarks and were no more accurate with multisensory cues than with vision alone. In Experiment 2, a new group of 24 individuals completed the same task, but with simulated low vision in the form of a blur filter to increase visual uncertainty. Again, participants relied more on visual landmarks than auditory ones and no multisensory benefit occurred. Participants navigating with blur did not rely more on their hearing compared with the group that navigated with normal vision. These results support previous research showing that one sensory modality at a time may be sufficient for spatial updating, even under impaired viewing conditions. Future research could investigate task- and participant-specific factors that lead to different strategies of multisensory cue combination with auditory and visual cues.

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来源期刊
Journal of Vision
Journal of Vision 医学-眼科学
CiteScore
2.90
自引率
5.60%
发文量
218
审稿时长
3-6 weeks
期刊介绍: Exploring all aspects of biological visual function, including spatial vision, perception, low vision, color vision and more, spanning the fields of neuroscience, psychology and psychophysics.
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