AI Article Synopsis
- Prism adaptation involves using prisms that shift visual input, affecting both sensorimotor skills and spatial perception.
- There is a correlation between spatial awareness and auditory frequency, with low frequencies linked to the left side and high frequencies to the right.
- The study found that prism adaptation can alter how musicians and nonmusicians perceive auditory frequencies, specifically shifting perception of high frequencies after adapting to a leftward visual shift.
Article Abstract
Prism adaptation consists of pointing to visual targets while wearing prisms that shift the visual field laterally. The aftereffects are not restricted to sensorimotor level but extend to spatial cognition. There is a link between spatial representation and auditory frequency, with an association of low frequencies on the left side and high frequencies on the right side of space. The present study aimed first at evaluating the representation of auditory frequencies on a wide range of frequencies in musicians and nonmusicians. We used the 'auditory interval bisection judgment' within three auditory intervals. The results showed a pseudoneglect behavior in pretest in musicians and nonmusicians for high frequency intervals, reflecting a perceptual bias of the subjective interval center toward lower frequencies. The second aim of the present study was to evaluate the aftereffects of prism adaptation on an expanded auditory spectrum. The results showed aftereffects of adaptation to a leftward optical deviation for high frequency intervals in musicians and nonmusicians. Adaptation to a leftward optical deviation affects the auditory perception on an extended auditory spectrum, by shifting the subjective interval center toward high frequencies. The present study provides innovative data about representation of auditory perception and its modulation by prism adaptation.
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| http://dx.doi.org/10.1016/j.actpsy.2020.103219 | DOI Listing |
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