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Replication of population-level differences in auditory-motor synchronization ability in a Norwegian-speaking
Guro S Sjuls1, Mila D Vulchanova2, M Florencia Assaneo3
1Language Acquisition and Language Processing Lab, Norwegian University of Science and Technology, Department of Language and Literature, Trondheim, Norway. guro.sjuls@gmail.com.
The Speech-to-Speech Synchronization test reveals two distinct speaker groups. This study confirms these findings in Norwegian speakers, showing the test
Area of Science:
- Neuroscience
- Speech Science
- Auditory-Motor Integration
Background:
- The Speech-to-Speech Synchronization test assesses auditory-motor synchronization, the ability to match one's speech to external rhythms.
- Previous research identified two distinct groups: high and low synchronizers, with differing neural and behavioral characteristics.
Purpose of the Study:
- To investigate the universality of the bimodal distribution of auditory-motor synchronization abilities across different language populations.
- To determine if the Speech-to-Speech Synchronization test results generalize to Norwegian speakers.
Main Methods:
- Administered the Speech-to-Speech Synchronization test to a population of Norwegian speakers.
- Analyzed the distribution of synchronization abilities within the Norwegian-speaking cohort.
Main Results:
- The study replicated the bimodal distribution observed in previous studies, with Norwegian speakers falling into high and low synchronizer groups.
- This indicates that the observed population-level distribution is not specific to English or German speakers.
Conclusions:
- The findings support the generalizability of the Speech-to-Speech Synchronization test and the existence of distinct auditory-motor synchronization profiles across diverse linguistic groups.
- Auditory-motor synchronization ability appears to have a universal, bimodal distribution in the human speaker population.
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