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Emergent Jaw Predominance in Vocal Development through Stochastic Optimization ...
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Abstract:
Infant vocal babbling strongly relies on jaw oscillations, especially at the stage of canonical babbling, which underlies the syllabic structure of world languages. In this paper, we propose, model and analyze an hypothesis to explain this predominance of the jaw in early babbling. This hypothesis states that general stochastic optimization principles, when applied to learning sensorimotor control, automatically generate ordered babbling stages with a predominant exploration of jaw movements in early stages. The reason is that those movements impact the auditory effects more than other articulators. In previous computational models, such general principles were shown to selectively freeze and free degrees of freedom in a model reproducing the proximo-distal development observed in infant arm reaching. The contribution of this paper is to show how, using the same methods, we are able to explain such patterns in vocal development. We present three experiments. The two first ones show that the recruitment order ...
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Keyword:
Audio and Speech Processing eess.AS; FOS Biological sciences; FOS Computer and information sciences; FOS Electrical engineering, electronic engineering, information engineering; Neurons and Cognition q-bio.NC; Sound cs.SD
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URL: https://arxiv.org/abs/2010.07208
https://dx.doi.org/10.48550/arxiv.2010.07208
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Emergent Jaw Predominance in Vocal Development through Stochastic Optimization
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In: ISSN: 2379-8920 ; EISSN: 2379-8939 ; IEEE Transactions on Cognitive and Developmental Systems ; https://hal.inria.fr/hal-01578075 ; IEEE Transactions on Cognitive and Developmental Systems, Institute of Electrical and Electronics Engineers, Inc, 2017, pp.1-12. ⟨10.1109/TCDS.2017.2704912⟩ ; http://ieeexplore.ieee.org/document/7955101/ (2017)
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