Scholarly opinions vary on what language is, how it evolved, and from where or what it evolved. Long considered uniquely human, today scholars argue for evolutionary continuity between human language and animal communication systems. But while it is generally recognized that language is an evolving communication system, scholars continue to debate from which species language evolved, and what behavioral and cognitive features are the precursors to human language. To understand the nature of protolanguage, some look for homologs in gene functionality, (...) brain areas, or anatomical structures such as the supralaryngeal vocal tract; others point toward primates, their gestural, vocal, multimodal, and in later evolving hominins also their pantomimic communication systems; and still others draw parallels between the musicality that characterizes language and the pitch found in the numerous sounds produced by animals. Accordingly, protolanguage theories today are multiple and diverse, and protolanguages might have also been diverse. This special issue on Evolving (Proto)Language/s for Lingua bundles several of the protolanguage theories that were put forward at the sixth edition of the Ways to Protolanguage conference series, held at the Calouste Gulbenkian Foundation in Lisbon, in 2019. Not aimed at surveying all the different ways there are to conceptualize, study, and model protolanguage/s, this issue provides interested readers with good overviews on the role played in current theorizing on protolanguage/s by (paleo)anthropology, genetics, physiology, developmental, evolutionary, ecological, and pragmatic research lines. (shrink)

Perceptual symbol systems provide a welcome alternative to amodal encapsulated means of cognitive processing. However, the relations between perceived reality and internal mentation require a more differentiated approach, reflecting both developmental differences between infant and adult experience and qualitative differences between consciously perceived and mentally represented contents. Neurological evidence suggests a developmental trajectory from initial perceptual states in infancy to a more differentiated consciousness from two years of age on. Children's processing of and verbal expressions regarding motion events provides an (...) example of the changing capacity for mental experience. (shrink)

Developmental aspects of the frame/content perspective are explored in relation to (1) transitions in early language acquisition, (2) possible differential neurological control for babbling and early and later speech, and (3) development of word production templates in precocious early speakers. Proportionally high frequency of bilabial stops in early stable words versus babble offers advantages for afferent monitoring and supporting “frame dominance.”.

This commentary is a brief reflection on the relationship between the embodied cognition analysis and a Piagetian theoretical position. In particular, the place of A-not-B in the larger Piagetian framework and the importance of the concept of mental representation, in contrast with perceptual understanding, are noted.

Do children’s single words related to motion and change also encode aspects of environmental events highlighted by Talmy’s motion event analysis? If so, these meanings may predict children’s early verb meanings. Analyzing the kinds of meanings expressed in single “dynamic event words” through motion event semantics yields links between early true verbs in sentences and the semantics encoded in these single words. Dynamic event words reflect the sense of temporal and spatial reversibility established in the late sensorimotor period. We propose (...) that these dynamic meanings provide the semantic foundation for the most common verbs included in early sentences, and thus a bootstrap to full development of the verb repertoire. In this study, we followed the spoken language development of five children. We identified dynamic event words as encoding dynamic change in the following dimensions: spatial direction in relation to self; vertical spatial direction; figure/ground relationships; and temporal event sequences. Verbs continuing the semantics previously identified in dynamic event words occurred early and dominated the verb repertoire through 24 months of age. (shrink)