This research was designed to evaluate the interaction of conceptual and linguistic factors during the acquisition of the spatial and temporal systems of Polish, English and Finnish from 3 to 6 years of age. In the conceptual-spatial task, children reconstructed a layout from a 180-degree change in perspective, and in the conceptual-temporal task they arranged three picture cards in a sequence while telling a story. In the linguistic domain, there were two comprehension tests and one production test containing spatial and temporal contrasts requiring either a single or multiple referent object(s)/event(s). The main effects (i.e., age, dimension, complexity) were always significant. There was clear evidence for a Language x Dimension interaction in the linguistic
The purpose of this research was to investigate the potential interaction of conceptual representations and linguistic systems in the process of language acquisition. Language–thought interactions were studied in 80 American, 48 Finnish and 48 Polish preschool children. The research focused on the conceptual and linguistic development of space and time. The spatial and temporal conceptual tasks were designed to measure the transition from experiential to inferential knowledge of space/time representations. In the linguistic domain, comprehension and production tests were used to evaluate the children's capacity to understand mono- and bi-referential location in space and time, where mono-referential location involves a single referent object/event with intrinsic properties (e.g. in/on or past/non-past), and bi-referential location requires two or more referent objects/events and relative perspective (e.g. deictic front/back or before/after). The conceptual and linguistic tests revealed significant changes during the period from two to five years of age, and measures of conceptual development were correlated with measures of linguistic development. As spatial and temporal representations became more structured, children were able to move from mono- to bi-referential location. In a comprehension test, we discovered an interaction of language by dimension. Finnish children found spatial distinctions relatively easy and Polish children found temporal distinctions relatively easy. This interaction was expected on the basis of the relative complexity of the morpho-syntactic coding in the spatial and temporal systems of the two languages. However, the argument relating the timing of acquisition to the transparency versus opacity of the linguistic systems was not supported by the English language comparison. Finally, the Finnish children were relatively better able to accomplish the spatial conceptual tasks as compared to the Polish children. This finding is consistent with a developmental concept of linguistic relativity. In general, the research indicates that spatial and temporal linguistic systems and representational knowledge interact during development with the influence occurring in both directions.
This study concerns the acquisition of complex sentence structures in Finnish. Specifically, three simultaneous and sequential events were acted out with toys in an elicitation task, and the production of "and," "and then," "when," and "after" were observed. There were 48 children in a cross-sectional design at the age levels 3, 4, 5, and 6 years. Immediately after the complex event was presented, the child was asked the initial request "What happened?" If the child did not produce the whole event spontaneously, she or he was prompted by "What else happened?" Finally, the prompted request "When did X?" was asked (X referring to the second action component of the event). The results showed that prompting better revealed the ability of the children, especially that of the younger ones, to use temporal conjunctions in complex sentences, as well as the delicate interplay of language skills and their flexible use.
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