Subjective Audibility Modulates the Susceptibility to Sound-Induced Flash Illusion: Effect of Loudness and Auditory Masking.

IF 1.8 4区 心理学 Q3 BIOPHYSICS
Yuki Ito, Hanaka Matsumoto, Kohta I Kobayasi
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引用次数: 0

Abstract

When a brief flash is presented along with two brief sounds, the single flash is often perceived as two flashes. This phenomenon is called a sound-induced flash illusion, in which the auditory sense, with its relatively higher reliability in providing temporal information, modifies the visual perception. Decline of audibility due to hearing impairment is known to make subjects less susceptible to the flash illusion. However, the effect of decline of audibility on susceptibility to the illusion has not been directly investigated in subjects with normal hearing. The present study investigates the relationship between audibility and susceptibility to the illusion by varying the sound pressure level of the stimulus. In the task for reporting the number of auditory stimuli, lowering the sound pressure level caused the rate of perceiving two sounds to decrease on account of forward masking. The occurrence of the illusory flash was reduced as the intensity of the second auditory stimulus decreased, and was significantly correlated with the rate of perceiving the two auditory stimuli. These results suggest that the susceptibility to sound-induced flash illusion depends on the subjective audibility of each sound.

主观听觉调节声音诱发的闪光错觉的易感性:响度和听觉掩蔽的影响。
当一个短暂的闪光与两个短暂的声音一起出现时,单个闪光通常被认为是两个闪光。这种现象被称为声音诱导的闪光错觉,其中听觉在提供时间信息方面具有相对较高的可靠性,从而改变了视觉感知。众所周知,听力受损导致的听力下降会使受试者更不容易受到闪光错觉的影响。然而,听力下降对幻觉易感性的影响尚未在听力正常的受试者中直接研究。本研究通过改变刺激的声压水平来研究可听性和对幻觉的易感性之间的关系。在报告听觉刺激次数的任务中,由于前向掩蔽,降低声压级会导致感知两个声音的速率降低。幻觉闪光的发生随着第二次听觉刺激强度的降低而减少,并且与感知两次听觉刺激的速率显著相关。这些结果表明,对声音引起的闪光错觉的易感性取决于每个声音的主观可听性。
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来源期刊
Multisensory Research
Multisensory Research BIOPHYSICS-PSYCHOLOGY
CiteScore
3.50
自引率
12.50%
发文量
15
期刊介绍: Multisensory Research is an interdisciplinary archival journal covering all aspects of multisensory processing including the control of action, cognition and attention. Research using any approach to increase our understanding of multisensory perceptual, behavioural, neural and computational mechanisms is encouraged. Empirical, neurophysiological, psychophysical, brain imaging, clinical, developmental, mathematical and computational analyses are welcome. Research will also be considered covering multisensory applications such as sensory substitution, crossmodal methods for delivering sensory information or multisensory approaches to robotics and engineering. Short communications and technical notes that draw attention to new developments will be included, as will reviews and commentaries on current issues. Special issues dealing with specific topics will be announced from time to time. Multisensory Research is a continuation of Seeing and Perceiving, and of Spatial Vision.
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