scholarly journals Effects of Visually Induced Self-Motion on Sound Localization Accuracy

2021 ◽  
Vol 12 (1) ◽  
pp. 173
Author(s):  
Akio Honda ◽  
Kei Maeda ◽  
Shuichi Sakamoto ◽  
Yôiti Suzuki
Keyword(s):  
Sound Localization ◽  
Acoustic Stimulus ◽  
Space Perception ◽  
Rotation Velocity ◽  
Noise Burst ◽  
Auditory Space ◽  
Localization Accuracy ◽  
Perception Of Self ◽  
Computational Resources ◽  
Self Motion

The deterioration of sound localization accuracy during a listener’s head/body rotation is independent of the listener’s rotation velocity (Honda et al., 2016). However, whether this deterioration occurs only during physical movement in a real environment remains unclear. In this study, we addressed this question by subjecting physically stationary listeners to visually induced self-motion, i.e., vection. Two conditions—one with a visually induced perception of self-motion (vection) and the other without vection (control)—were adopted. Under both conditions, a short noise burst (30 ms) was presented via a loudspeaker in a circular array placed horizontally in front of a listener. The listeners were asked to determine whether the acoustic stimulus was localized relative to their subjective midline. The results showed that in terms of detection thresholds based on the subjective midline, the sound localization accuracy was lower under the vection condition than under the control condition. This indicates that sound localization can be compromised under visually induced self-motion perception. These findings support the idea that self-motion information is crucial for auditory space perception and can potentially enable the design of dynamic binaural displays requiring fewer computational resources.

scholarly journals Effect of Active Self-Motion on Auditory Space Perception

2015 ◽  
Vol 21 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Shuichi SAKAMOTO ◽  
Wataru TERAMOTO ◽  
Hideaki TERASHIMA ◽  
Jiro GYOBA
Keyword(s):  
Space Perception ◽  
Auditory Space ◽  
Self Motion

Spatial Hearing in Children with Visual Disabilities

Perception ◽  
1998 ◽  
Vol 27 (1) ◽  
pp. 105-122 ◽  
Author(s):  
Daniel H Ashmead ◽  
Robert S Wall ◽  
Kiara A Ebinger ◽  
Susan B Eaton ◽  
Mary-M Snook-Hill ◽  
...  
Keyword(s):  
Visual Experience ◽  
Space Perception ◽  
Spatial Hearing ◽  
Sound Sources ◽  
Visual Disabilities ◽  
Auditory Space ◽  
Hearing Ability ◽  
History Of ◽  
Total Blindness ◽  
Self Motion

A study is reported of the effect of early visual experience on the development of auditory space perception. The spatial hearing of thirty-five children with visual disabilities (twenty-two with congenital total blindness) was compared with that of eighteen sighted children and seventeen sighted adults. The tests provided a comprehensive assessment of spatial-hearing ability, including psychophysical estimates of spatial resolution in the horizontal, vertical, and distance dimensions, as well as measures of reaching and walking to the locations of sound sources. The spatial hearing of the children with visual disabilities was comparable to or some-what better than that of the sighted children and adults. This pattern held even when the group with visual disabilities was restricted to those children with congenital total blindness; in fact, some of those children had exceptionally good spatial hearing. These findings imply that the developmental calibration of human spatial hearing is not dependent on a history of visual experience. It seems likely that this calibration arises from the experience of changes in sound-localization cues arising from self-motion, such as turning the head or walking. As a practical matter, orientation and mobility instructors may reasonably assume that individuals with visual disabilities can use their hearing effectively in day-to-day travel situations.

Auditory Space Perception in the Blind: Horizontal Sound Localization in Acoustically Simple and Complex Situations

Perception ◽  
2019 ◽  
Vol 48 (11) ◽  
pp. 1039-1057 ◽  
Author(s):  
Martina Feierabend ◽  
Hans-Otto Karnath ◽  
Jörg Lewald
Keyword(s):  
Sound Localization ◽  
Space Perception ◽  
Auditory Space

Auditory space perception during self-motion

2016 ◽  
Vol 140 (4) ◽  
pp. 2998-2998 ◽  
Author(s):  
Shuichi Sakamoto ◽  
Wataru Teramoto ◽  
Akio Honda ◽  
Yôiti Suzuki ◽  
Jiro Gyoba
Keyword(s):  
Space Perception ◽  
Auditory Space ◽  
Self Motion

Vestibular Influence on Human Auditory Space Perception

2000 ◽  
Vol 84 (2) ◽  
pp. 1107-1111 ◽  
Author(s):  
Jörg Lewald ◽  
Hans-Otto Karnath
Keyword(s):  
Cold Water ◽  
Human Subjects ◽  
Space Perception ◽  
Median Plane ◽  
Vestibular Stimulation ◽  
Whole Body ◽  
Interaural Level Difference ◽  
Auditory Periphery ◽  
Auditory Space ◽  
Sound Image

We investigated the effect of vestibular stimulation on the lateralization of dichotic sound by cold-water irrigation of the external auditory canal in human subjects. Subjects adjusted the interaural level difference of the auditory stimulus to the subjective median plane of the head. In those subjects in whom dizziness and nystagmus indicated sufficient vestibular stimulation, these adjustments were significantly shifted toward the cooled ear compared with the control condition (irrigation with water at body temperature); i.e., vestibular stimulation induced a shift of the sound image toward the nonstimulated side. The mean magnitude of the shift was 7.3 dB immediately after vestibular stimulation and decreased to 2.5 dB after 5 min. As shown by an additional control experiment, this effect cannot be attributed to a unilateral hearing loss induced by cooling of the auditory periphery. The results indicate the involvement of vestibular afferent information in the perception of sound location during movements of the head and/or the whole body. We thus hypothesize that vestibular information is used by central-nervous mechanisms generating a world-centered representation of auditory space.

Torsional eye movements are facilitated during perception of self-motion

1999 ◽  
Vol 126 (4) ◽  
pp. 495-500 ◽  
Author(s):  
K. V. Thilo ◽  
Thomas Probst ◽  
Adolfo M. Bronstein ◽  
Yatsuji Ito ◽  
Michael A. Gresty
Keyword(s):  
Eye Movements ◽  
Perception Of Self ◽  
Self Motion

Impacts of Rotation Axis and Frequency on Vestibular Perceptual Thresholds

2022 ◽  
pp. 1-29
Author(s):  
Andrew R. Wagner ◽  
Megan J. Kobel ◽  
Daniel M. Merfeld
Keyword(s):  
Multisensory Integration ◽  
Rotation Axis ◽  
Semicircular Canals ◽  
Rotation Velocity ◽  
Pass Filter ◽  
Motion Cues ◽  
Left Posterior ◽  
Rotation Plane ◽  
Self Motion ◽  
Lower Frequencies

Abstract In an effort to characterize the factors influencing the perception of self-motion rotational cues, vestibular self-motion perceptual thresholds were measured in 14 subjects for rotations in the roll and pitch planes, as well as in the planes aligned with the anatomic orientation of the vertical semicircular canals (i.e., left anterior, right posterior; LARP, and right anterior, left posterior; RALP). To determine the multisensory influence of concurrent otolith cues, within each plane of motion, thresholds were measured at four discrete frequencies for rotations about earth-horizontal (i.e., tilts; EH) and earth-vertical axes (i.e., head positioned in the plane of the rotation; EV). We found that the perception of rotations, stimulating primarily the vertical canals, was consistent with the behavior of a high-pass filter for all planes of motion, with velocity thresholds increasing at lower frequencies of rotation. In contrast, tilt (i.e, EH rotation) velocity thresholds, stimulating both the canals and otoliths (i.e., multisensory integration), decreased at lower frequencies and were significantly lower than earth-vertical rotation thresholds at each frequency below 2 Hz. These data suggest that multisensory integration of otolithic gravity cues with semicircular canal rotation cues enhances perceptual precision for tilt motions at frequencies below 2 Hz. We also showed that rotation thresholds, at least partially, were dependent on the orientation of the rotation plane relative to the anatomical alignment of the vertical canals. Collectively these data provide the first comprehensive report of how frequency and axis of rotation influence perception of rotational self-motion cues stimulating the vertical canals.

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