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This paper deals with the emergence of verb morphology in one German child up to the time mini-paradigms occur in the data. I will focus on the role of protomorphology as a transitional stage between rote learning and the productive use of morphological distinctions.
In this paper the first results concerning the development of early verb morphology in an L1-English speaking child are presented. Adopting the framework of morphological development of Dressler (Dressler, this volume) the data of a girl from the CHILDES database, Nina of the Suppes corpus, is analysed with regard to the emergence of early verbal categories (e.g. number and person) and their appearance in a first mini-paradigm. In the sessions analysed so far the child Nina has reached an age of 2;2 when the first mini-paradigm emerges.
In these conclusions we can deal only with some of the tentative comparative results of the workshop papers on the early development of verb morphology. The main focus is on criteria of how the child detects morphology and how this emerging morphological competence develops in its earliest phases. In view of the purpose and tentative character of these conclusions, all references will be limited to the papers of the workshop and to earlier studies by workshop participants within the "Crosslinguistic Project on Pre- and Protomorphology in Language Acquisition". Much more will be given in the projected final publication.
Introduction
(2000)
This 18th issue of ZAS-Papers in Linguistics consists of papers on the development of verb acquisition in 9 languages from the very early stages up to the onset of paradigm construction. Each of the 10 papers deals with first-Ianguage developmental processes in one or two children studied via longitudinal data. The languages involved are French, Spanish, Russian, Croatian, Lithuanien, Finnish, English and German. For German two different varieties are examined, one from Berlin and one from Vienna. All papers are based on presentations at the workshop 'Early verbs: On the way to mini-paradigms' held at the ZAS (Berlin) on the 30./31. of September 2000. This workshop brought to a close the first phase of cooperation between two projects on language acquisition which has started in October 1999:
a) the project on "Syntaktische Konsequenzen des Morphologieerwerbs" at the ZAS (Berlin) headed by Juergen Weissenborn and Ewald Lang, and financially supported by the Deutsche Forschungsgemeinschaft, and
b) the international "Crosslinguistic Project on Pre- and Protomorphology in Language Acquisition" coordinated by Wolfgang U. Dressler in behalf of the Austrian Academy of Sciences.
On the early development of aspect in greek and russian child language, a comparative analysis
(2003)
The category of aspect is grammaticized in both Greek and Russian opposing perfective and imperfective verb forms in all inflectional categories except the nonpast (‘present’). Despite these similarities there are important differences in the way the aspectual systems function in the two languages. While in Greek nearly all verbs oppose a perfective to a given imperfective grammatical form, Russian aspect is more strongly lexicalized with pairs of imperfective and perfective lexemes not only differing aspectually, but also as far as their lexical meanings are concerned. This is especially true of perfective verbs formed by prefixes as compared to their imperfective bases. Thus, in pairs of prefixed and unprefixed dynamic verbs, the derived prefixed (perfective) member has a telic meaning while its unprefixed (imperfective) counterpart is atelic (e.g. sjest’ (PFV) ‘to eat up’ vs. jest’ (IPF) ‘to eat’). Such derived perfective verbs may in turn be “secondarily” imperfectivized by suffixation furnishing the only “true” perfective/imperfective pairs of verbs (e.g. sjest’ (PFV) ‘to eat up’ vs. sjedat’ (IPF) ‘to eat up’ (iterative)). “Secondary” imperfectives do not occur in our child data.
In this pilot study, we will analyze the tense-aspect-mood forms of the 20 most frequent verbs with equivalent meanings occurring in the longitudinal audiotaped data of a Greek and a Russian boy between 2;1 and 2;3 (their entire lexical inventories comprise approx. 100 verbs each).
We adopt a constructivist perspective on the development of aspect in Greek and Russian child language and will show that in spite of a broad inventory of imperfective and perfective verb forms to be found in the speech of both children aspect has not yet developed into a generalized grammatical category, but is strongly dependent on aktionsart (stative/dynamic, telic/atelic) in both languages. While this results in a strong preference for perfective verb forms of telic verbs and of imperfective forms of atelic ones in the speech of the Greek boy, the Russian child tends to use the unmarked members.
It has been previously reported that in languages demonstrating the Root Infinitive (RI) Stage the use of RIs is characterized by two properties: these forms are overwhelmingly eventive and have, in the majority of instances, a modal interpretation. Hoekstra and Hyams (1998, 1999) have proposed a theory stating that these two properties of RIs are co-dependent in that the application of the modal reference restriction limits the use of the aspectual verbal classes to eventive predicates. Furthermore, this theory assumed that the described mutual dependency of these constraints was valid cross-linguistically.
In this paper, we investigate the application of this theory to the case of RIs in Russian, one of the languages exhibiting the RI Stage. Using new longitudinal data from two monolingual Russian-speaking children, we demonstrate that the predictions of Hoekstra and Hyams’ approach are not realized for Russian child speech. While the constraint requiring that Ris have a modal reference does not seem to apply in Russian since the infinitival forms do receive past and present tense interpretation, these predicates are still overwhelmingly eventive and stative predicates appear mostly as finite verbs. Having shown that a theory connecting the application of the two restrictions on RIs does not account for the Russian data, we examine several alternative analyses of Russian RIs. We arrive at a conclusion that an explanation based on the lack of the event variable in stative predicates (Kratzer 1989) necessary for the interpretation of RIs in discourse (Avrutin 1997) succeeds in handling the Russian data presented in this article.
The acquisition of spanish perfective aspect : A study on children's production and comprehension
(2003)
This paper presents the acquisition of Spanish perfective aspect in production and comprehension. It argues that, although young children use perfective aspect to talk about completed events, young children have difficulty in assessing perfective meaning from perfective morphology. This paper proposes that in the process of acquiring aspectual meaning, children use local strategies to decode aspectual meaning from form: when analyzing a completed situation, young children depend on certain learnability factors to correctly assess the entailment of completion of the perfective, namely, their ability to determine if the object of the event measures out the event as a whole or not, and their ability to read the agent’s intentions. When those factors are removed from the situation, young children had difficulty determining the entailment of completion of perfective aspect. This study also suggests that the manner in which aspectual information is conveyed in a language, may play a role on the readiness of the acquisition of the semantic morphology of the language (e.g., verb+object vs. verb+affixes). The results of this study indicate that successful performance on the semantics of Spanish perfective aspect develops around the age of 5-6.
The current study investigates the relation between aspect and particle verbs in the acquisition of English. Its purpose is to determine whether children associate telicity, as argued in previous studies, or rather perfectivity, which entails completion of a telic situation, with their early particle verb use. The study analyzes naturalistic data of four monolingual children between 1;6 and 3;8 from CHILDES acquiring English as their first language. On the one hand, it finds that children use both –ed and irregular perfective morphology with simplex verbs before particle verbs. They further use imperfective before perfective morphology with particle verbs. These findings suggest that there is no correlation between telic particle verbs and perfective morphology, as would have been predicted on an account which claims that lexical aspect of predicates guides the acquisition of grammatical aspect (Olsen & Weinberg 1999). On the other hand, the study finds that the children’s particle verbs denote telic situations from early on, but not half of them were used to refer to situations that are also completed. This finding questions analyses which claim that, at an initial stage, children will only interpret predicates as telic if they refer to situations that are at the same time completed. Completion information is not necessary for children in order to use particle verbs correctly for telic situations, as would have been predicted on an extended account along the lines of Wagner (2001). As a conclusion, it is suggested that the divergent findings result from a difference in methodology. While restrictions of perfective and imperfective morphology to particular classes of lexical aspect pertain to the production of grammatical aspect morphology, perfective and imperfective viewpoints on situations pertain to the level of interpretation of telic and atelic situations.