Influence of Visual Prism Adaptation on Auditory Space Representation. (December 2017)

• Record Type: Journal Article
• Authors: Pochopien, Klaudia; Fahle, Manfred
• Is Part Of: I-Perception. Volume 8:Number 6(2017)
• Publication Date: 2017-12
• Subjects: prism adaptation -- directional hearing -- sound localization -- perceptual learning -- plasticity; Perception -- Periodicals; Visual perception -- Periodicals; Perception; Perception; Electronic journals; Periodical; Fulltext; Internet Resources; Periodicals; Periodicals; 153.7
• DOI: 10.1177/2041669517746701
• Languages: English
• ISSNs: 2041-6695

Abstract

Prisms shifting the visual input sideways produce a mismatch between the visual versus felt position of one's hand. Prism adaptation eliminates this mismatch, realigning hand proprioception with visual input. Whether this realignment concerns exclusively the visuo-(hand)motor system or it generalizes to acoustic inputs is controversial. We here show that there is indeed a slight influence of visual adaptation on the perceived direction of acoustic sources. However, this shift in perceived auditory direction can be fully explained by a subconscious head rotation during prism exposure and by changes in arm proprioception. Hence, prism adaptation does only indirectly generalize to auditory space perception.