Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys
Abstract Motion perception is a key aspect of sensory processing that enables successful interaction with the environment. While visual motion perception has been extensively studied, little is known about the determinants of auditory motion perception. Our study explores how the perception of audit...
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| Format: | Article |
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-12642-y |
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| author | Adriana M. Schoenhaut Ramnarayan Ramachandran Mark T. Wallace |
| author_facet | Adriana M. Schoenhaut Ramnarayan Ramachandran Mark T. Wallace |
| author_sort | Adriana M. Schoenhaut |
| collection | DOAJ |
| description | Abstract Motion perception is a key aspect of sensory processing that enables successful interaction with the environment. While visual motion perception has been extensively studied, little is known about the determinants of auditory motion perception. Our study explores how the perception of auditory motion direction changes with manipulations of low-level stimulus parameters in nonhuman primates (NHPs). Macaque monkeys were trained to perform a 2-AFC task in which they judged the direction of noisy auditory motion stimuli. We systematically manipulated stimulus duration, velocity, and displacement to evaluate their respective influence on motion sensitivity. Displacement had the greatest impact, while the relative influence of duration versus velocity depended upon the duration of the stimulus. These findings suggest that auditory motion direction is most likely processed by a snapshot mechanism, in which stimulus velocity is inferred by sequential snapshots of auditory stimulus location, rather than by velocity-selective motion detectors similar to those found in the visual system. To our knowledge, this study is the first to characterize the influence of low-level stimulus parameters on auditory motion perception in awake, behaving NHPs, and forms the basis for future neurophysiological investigations. |
| format | Article |
| id | doaj-art-cf7e7a0a23b34f749b395dc6a07bb4b2 |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-cf7e7a0a23b34f749b395dc6a07bb4b22025-08-20T03:04:39ZengNature PortfolioScientific Reports2045-23222025-08-0115111410.1038/s41598-025-12642-yContribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeysAdriana M. Schoenhaut0Ramnarayan Ramachandran1Mark T. Wallace2Neuroscience Graduate Program, Vanderbilt UniversityDepartment of Hearing and Speech Sciences, Vanderbilt University Medical CenterDepartment of Psychology, Vanderbilt UniversityAbstract Motion perception is a key aspect of sensory processing that enables successful interaction with the environment. While visual motion perception has been extensively studied, little is known about the determinants of auditory motion perception. Our study explores how the perception of auditory motion direction changes with manipulations of low-level stimulus parameters in nonhuman primates (NHPs). Macaque monkeys were trained to perform a 2-AFC task in which they judged the direction of noisy auditory motion stimuli. We systematically manipulated stimulus duration, velocity, and displacement to evaluate their respective influence on motion sensitivity. Displacement had the greatest impact, while the relative influence of duration versus velocity depended upon the duration of the stimulus. These findings suggest that auditory motion direction is most likely processed by a snapshot mechanism, in which stimulus velocity is inferred by sequential snapshots of auditory stimulus location, rather than by velocity-selective motion detectors similar to those found in the visual system. To our knowledge, this study is the first to characterize the influence of low-level stimulus parameters on auditory motion perception in awake, behaving NHPs, and forms the basis for future neurophysiological investigations.https://doi.org/10.1038/s41598-025-12642-y |
| spellingShingle | Adriana M. Schoenhaut Ramnarayan Ramachandran Mark T. Wallace Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys Scientific Reports |
| title | Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys |
| title_full | Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys |
| title_fullStr | Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys |
| title_full_unstemmed | Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys |
| title_short | Contribution of displacement, duration, and velocity on auditory motion direction perception in macaque monkeys |
| title_sort | contribution of displacement duration and velocity on auditory motion direction perception in macaque monkeys |
| url | https://doi.org/10.1038/s41598-025-12642-y |
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