Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans

Abstract Is human beat keeping unique among vertebrates? The only non-human data showing consistent and lagless beat matching to novel stimuli, including music, come from Ronan, a trained sea lion [Cook et al., J. Comp. Psychol., 127(4):412–427]. Ronan’s convincing demonstration of adaptive auditory...

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Main Authors: Peter F. Cook, Carson Hood, Andrew Rouse, Colleen Reichmuth
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-95279-1
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author Peter F. Cook
Carson Hood
Andrew Rouse
Colleen Reichmuth
author_facet Peter F. Cook
Carson Hood
Andrew Rouse
Colleen Reichmuth
author_sort Peter F. Cook
collection DOAJ
description Abstract Is human beat keeping unique among vertebrates? The only non-human data showing consistent and lagless beat matching to novel stimuli, including music, come from Ronan, a trained sea lion [Cook et al., J. Comp. Psychol., 127(4):412–427]. Ronan’s convincing demonstration of adaptive auditory-motoric entrainment at age 3 years showed stronger tempo-phase relationships and higher variability than reported in similar studies of human subjects. This apparent performance mismatch has been used to suggest the mechanisms underlying her beat keeping ability are not isomorphic with those of humans. However, in the twelve years since our original report, Ronan has continued intermittent beat-keeping practice. Comparative arguments should consider her improved performance with increased experience and evaluate her ability against human subjects performing similar rhythmic tasks. Here, we report Ronan’s contemporary ability to synchronize head movements with novel metronomic sounds presented at novel tempos. We also provide data for ten humans moving in time to the same stimuli using a comfortable arm motion with similar amplitude. This sea lion’s sensorimotor synchronization was precise, consistent, and indistinguishable from or superior to that of typical adults. These findings challenge claims of unique neurobiological adaptations for beat keeping in humans.
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spelling doaj-art-3e2e87bb91bb4718a404e1587b1018bc2025-08-20T01:47:32ZengNature PortfolioScientific Reports2045-23222025-05-0115111610.1038/s41598-025-95279-1Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humansPeter F. Cook0Carson Hood1Andrew Rouse2Colleen Reichmuth3New College of FloridaNew College of FloridaNew College of FloridaInstitute of Marine Sciences, Long Marine Laboratory, University of California Santa CruzAbstract Is human beat keeping unique among vertebrates? The only non-human data showing consistent and lagless beat matching to novel stimuli, including music, come from Ronan, a trained sea lion [Cook et al., J. Comp. Psychol., 127(4):412–427]. Ronan’s convincing demonstration of adaptive auditory-motoric entrainment at age 3 years showed stronger tempo-phase relationships and higher variability than reported in similar studies of human subjects. This apparent performance mismatch has been used to suggest the mechanisms underlying her beat keeping ability are not isomorphic with those of humans. However, in the twelve years since our original report, Ronan has continued intermittent beat-keeping practice. Comparative arguments should consider her improved performance with increased experience and evaluate her ability against human subjects performing similar rhythmic tasks. Here, we report Ronan’s contemporary ability to synchronize head movements with novel metronomic sounds presented at novel tempos. We also provide data for ten humans moving in time to the same stimuli using a comfortable arm motion with similar amplitude. This sea lion’s sensorimotor synchronization was precise, consistent, and indistinguishable from or superior to that of typical adults. These findings challenge claims of unique neurobiological adaptations for beat keeping in humans.https://doi.org/10.1038/s41598-025-95279-1
spellingShingle Peter F. Cook
Carson Hood
Andrew Rouse
Colleen Reichmuth
Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
Scientific Reports
title Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
title_full Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
title_fullStr Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
title_full_unstemmed Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
title_short Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
title_sort sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
url https://doi.org/10.1038/s41598-025-95279-1
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