Do innate stereotypies serve as a basis for swallowing and learned speech movements?

Mayer, Connor; Roewer-Després, François; Stavness, Ian; Gick, Bryan

doi:10.1017/s0140525x16001928

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…Since these gestures are spontaneously produced both in the womb (without any model) and perinatal life but disappear around 3 months, neonatal imitation could represent an epiphenomenon better explained by sensorimotor development. Crucially for the purpose of the current review, Keven and Akins (2017) also proposed that perinatal stereotypic gestures participate in the acquisition of orofacial motor control that, in turn, may support not only swallowing of solid food but also motor biomechanics for speech-like sounds production emerging by month 3 (also see Choi et al, 2017 ; Mayer et al, 2017 ).…”

Section: Homo Imitans? Methodological and Theoretical Controversiesmentioning

confidence: 99%

Faces and Voices Processing in Human and Primate Brains: Rhythmic and Multimodal Mechanisms Underlying the Evolution and Development of Speech

2022

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While influential works since the 1970s have widely assumed that imitation is an innate skill in both human and non-human primate neonates, recent empirical studies and meta-analyses have challenged this view, indicating other forms of reward-based learning as relevant factors in the development of social behavior. The visual input translation into matching motor output that underlies imitation abilities instead seems to develop along with social interactions and sensorimotor experience during infancy and childhood. Recently, a new visual stream has been identified in both human and non-human primate brains, updating the dual visual stream model. This third pathway is thought to be specialized for dynamics aspects of social perceptions such as eye-gaze, facial expression and crucially for audio-visual integration of speech. Here, we review empirical studies addressing an understudied but crucial aspect of speech and communication, namely the processing of visual orofacial cues (i.e., the perception of a speaker’s lips and tongue movements) and its integration with vocal auditory cues. Along this review, we offer new insights from our understanding of speech as the product of evolution and development of a rhythmic and multimodal organization of sensorimotor brain networks, supporting volitional motor control of the upper vocal tract and audio-visual voices-faces integration.

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Section: Homo Imitans? Methodological and Theoretical Controversiesmentioning

confidence: 99%

Faces and Voices Processing in Human and Primate Brains: Rhythmic and Multimodal Mechanisms Underlying the Evolution and Development of Speech

2022

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“…The 3D tongue model of ArtiSynth has been used to study physiological activities of the tongue in speech production (Dabbaghchian et al, 2017;Gick et al, 2014;Mayer et al, 2017) and articulatory motivation of phonological patterns (Jang, 2020). In the model, tongue muscles are implemented in a mesh structure based on accurate anatomical data derived from medical studies (Miyawaki, 1974;Netter, 1989;Takemoto, 2001).…”

Section: Biomechanical 3d Tongue Modelmentioning

confidence: 99%

A tutorial on articulatory muscles and ArtiSynth: Tongue and suprahyoid muscles, and 3D tongue model

Jang

2022

Language and Linguist. Compass

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This article has two main purposes: (i) to review the placement and function of the tongue and suprahyoid muscles concerning speech articulation, and (ii) as a biomechanical simulation tool to study how those muscles are involved in articulation, to introduce a 3D tongue model distributed by a 3D modelling platform called ArtiSynth. The 3D tongue model can be combined with other structural models to provide the outline of the oral cavity. This article presents examples of muscular simulations for/i/and/ɑ/using the jaw‐hyoid‐tongue model in ArtiSynth.

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“…Biomechanical simulations predict movements that result from prescribed forces, e.g., muscle forces, by solving equations that represent the mechanics of the musculoskeletal system. These methods have been applied to various complex structures involved in speech, such as the tongue (Gick et al 2017;Mayer et al 2017;Stavness et al 2011), the soft palate (Anderson et al 2019;Gick et al 2014), the larynx , and the lips (Nazari et al 2010(Nazari et al , 2011Stavness et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Quantal biomechanical effects in speech postures of the lips

Gick

Mayer

Chiu

et al. 2020

Journal of Neurophysiology

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The unique biomechanical and functional constraints on human speech make it a promising area for research investigating modular control of movement. The present paper illustrates how a modular control approach to speech can provide insights relevant to both motor control and linguistic typology. We specifically explore the robust typological finding that languages produce different degrees of labial constriction using distinct muscle groupings and concomitantly distinct lip postures. Research has suggested that these lip postures exploit biomechanical regions of non-linearity between neural activation and movement, also known as quantal regions, to allow movement goals to be realized despite variable activation signals. We present two sets of computer simulations showing that these labial postures can be generated under the assumption of modular control, and that the corresponding modules are biomechanically robust: first to variation in the activation levels of participating muscles, and second to interference from surrounding muscles. These results provide support for the hypothesis that biomechanical robustness is an important factor in selecting the muscle groupings used for speech movements, and provide insight into the neurological control of speech movements and how biomechanical and functional constraints govern the emergence of speech motor modules. We anticipate that future experimental work guided by biomechanical simulation results will provide new insights into the neural organization of speech movements.

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Do innate stereotypies serve as a basis for swallowing and learned speech movements?

Cited by 7 publications

References 13 publications

Faces and Voices Processing in Human and Primate Brains: Rhythmic and Multimodal Mechanisms Underlying the Evolution and Development of Speech

Faces and Voices Processing in Human and Primate Brains: Rhythmic and Multimodal Mechanisms Underlying the Evolution and Development of Speech

A tutorial on articulatory muscles and ArtiSynth: Tongue and suprahyoid muscles, and 3D tongue model

Quantal biomechanical effects in speech postures of the lips

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