Partial visual loss disrupts the relationship between judged room size and sound source distance.
Kolarik, Andrew J
Experimental Brain Research
MetadataShow full item record
Kolarik, A. J., Moore, B., Cirstea, S., Raman, R., Gopalakrishnan, S., & Pardhan, S. (2022). Partial visual loss disrupts the relationship between judged room size and sound source distance.. Experimental Brain Research https://doi.org/10.1007/s00221-021-06235-0
Visual spatial information plays an important role in calibrating auditory space. Blindness results in deficits in a number of auditory abilities, which have been explained in terms of the hypothesis that visual information is needed to calibrate audition. When judging the size of a novel room when only auditory cues are available, normally sighted participants may use the location of the farthest sound source to infer the nearest possible distance of the far wall. However, for people with partial visual loss (distinct from blindness in that some vision is present), such a strategy may not be reliable if vision is needed to calibrate auditory cues for distance. In the current study, participants were presented with sounds at different distances (ranging from 1.2 to 13.8 m) in a simulated reverberant (T60 = 700 ms) or anechoic room. Farthest distance judgments and room size judgments (volume and area) were obtained from blindfolded participants (18 normally sighted, 38 partially sighted) for speech, music, and noise stimuli. With sighted participants, the judged room volume and farthest sound source distance estimates were positively correlated (p < 0.05) for all conditions. Participants with visual losses showed no significant correlations for any of the conditions tested. A similar pattern of results was observed for the correlations between farthest distance and room floor area estimates. Results demonstrate that partial visual loss disrupts the relationship between judged room size and sound source distance that is shown by sighted participants.
Auditory distance, Multisensory plasticity, Sound localization, Spatial hearing, Vision loss
Engineering and Physical Sciences Research Council (EP/M026957/1)
External DOI: https://doi.org/10.1007/s00221-021-06235-0
This record's URL: https://www.repository.cam.ac.uk/handle/1810/329877
Attribution 4.0 International
Licence URL: https://creativecommons.org/licenses/by/4.0/
Recommended or similar items
The current recommendation prototype on the Apollo Repository will be turned off on 03 February 2023. Although the pilot has been fruitful for both parties, the service provider IKVA is focusing on horizon scanning products and so the recommender service can no longer be supported. We recognise the importance of recommender services in supporting research discovery and are evaluating offerings from other service providers. If you would like to offer feedback on this decision please contact us on: email@example.com