LINGUIST List 23.2803
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Thu Jun 21 2012
Review: Language Acquisition, Psycholinguistics: Grimm, Müller, Hamann, Ruigendijk (eds., 2011)
Editor for this issue: Anja Wanner
<anja linguistlist.org>
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Date: 21-Jun-2012
From: Ursula Kania <kania uni-leipzig.de>
Subject: Production-Comprehension Asymmetries in Child Language
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Announced at http://linguistlist.org/issues/22/22-4986.html EDITORS: Angela Grimm, Anja Müller, Cornelia Hamann, Esther Ruigendijk TITLE: Production-Comprehension Asymmetries in Child Language SERIES TITLE: Studies on Language Acquisition [SOLA] 43 PUBLISHER: De Gruyter Mouton YEAR: 2011 Ursula Kania, English Department, University of Leipzig (Germany) SUMMARY In language acquisition, comprehension usually precedes production -- for example, children comprehend more words than they are able to produce (e.g. Fenson et al. 1993 for English). The reverse pattern, i.e. the observation that in some cases adult-like production seems to precede comprehension is a much more recent and still underresearched phenomenon. This edited volume contains ten selected papers from the DGfS (=Deutsche Gesellschaft für Sprachwissenschaft/'German Linguistic Society') workshop ''Production-Comprehension-Asymmetries in Child Language,'' which was held at the University of Osnabrück in March 2009, presenting research on cases where "production outperforms comprehension in the same linguistic domain" (p. 1). A particular focus lies on the acquisition and use of pronouns, since the asymmetry is particularly well-attested in this area (e.g. Bloom et al. 1994; Chien & Wexler 1990). The book is organized into two sections (A and B), which correspond to the two major aims of the volume: The first aim is to present cross-linguistic research on production-comprehension asymmetries, including contributions on lesser-studied languages such as Bulgarian and Tamil (Section A). The second aim is to discuss possible sources of production-comprehension asymmetries. Based on the assumption that both comprehension and production rely on a single grammar, the seven papers in Section B mainly explore 1. in how far the observed differences can be attributed to methodological decisions (i.e. performance or task effects) and 2. "what a grammatical explanation of the observed asymmetries could look like" (p. 2). In her contribution ''Testing the Aspect Hypothesis in child Tamil,'' the first chapter in Section A, Lavanya Sankaran presents experimental findings on the influence of verb semantics on the production and comprehension of the aspectual markers 'kondiru' (consisting of the participle of 'kol,' 'to hold,' and the perfect auxiliary 'iru'; Lehmann 1993, p. 207) and 'vidu'(derived from the lexical verb for 'leave, let'; Schiffman 1999, p. 85) in Tamil, a lesser-studied Dravidian language. The results from an elicited production task carried out with two child groups (mean age = 3;0 and 4;1) and one adult control group suggest that the perfective marker 'vidu' is acquired before the imperfective marker 'kondiru' and used in an adult-like way in production from early on. However, a sentence-picture matching task used to measure comprehension showed the reverse pattern, i.e. a significantly better performance for 'kondiru' than for 'vidu'. The author suggests that this two-way asymmetry is caused by the fact that 'vidu' has a dual function (as a perfective and an inceptive marker), which might lead to a disadvantage in comprehension. The second paper, ''An asymmetry in the acquisition of accusative clitics in child Romanian,'' by Martine Coene and Laris Avram, discusses the use of accusative clitics and reflexives in the spontaneous production data of two children (1;9 and 3;0). Based on Uriagereka (1995) they argue that 1st/2nd person clitics and reflexives belong to a different class than 3rd person clitics, leading to different developmental paths in acquisition. The production data show that the former types of clitics were used in an adult-like way earlier than the latter. Even though the study focused on production only, the findings call into question the well-established observation that comprehension precedes production for Romance pronominals. It is argued that the observed asymmetry stems from the fact that previous research considered 3rd person clitics only. The paper thus suggests that the observed production-comprehension asymmetry may disappear when the whole paradigm of accusative clitics is considered. The third and last paper with a focus on cross-linguistic evidence is ''Comprehension and imitated production of personal pronouns across languages'' by Dagmar Bittner, Milena Kuehnast, and Natalia Gagarina. In order to examine the effects of the cues structural prominence and animacy on the interpretation and use of personal pronouns in subject position and to compare the cue pattern in comprehension and production, German, Russian, and Bulgarian children in two age groups (3 and 5 years) were tested with a question-after-story design. Even though the production task did not provide enough data for statistical analyses, the results indicate that the children relied on the same cues in both production and comprehension, suggesting symmetric processing. However, the authors point out that the results do not "mirror the complete anaphoric capacity of [personal pronouns] in the children's grammar" (p. 91) since only two cue types and one pronoun type were investigated. Section B starts out with a study on the ''Comprehension and production of subject pronouns in child Dutch'' by Charlotte Koster, Jan Hoeks, and Petra Hendriks. The explanatory framework used is Optimality Theory (e.g. Prince & Smolensky 2004), a constraint-based system in which language production and comprehension are viewed as processes aiming at an optimal input-output relationship. The fact that production and comprehension proceed in opposite directions (production going from meaning to form, comprehension from form to meaning) leads to a potential asymmetry between the two modalities (Asymmetric Grammar Hypothesis). Adult speakers overcome this asymmetry by taking into account both the listener's and the speaker's perspective (bidirectional optimization, Blutner 2000). Based on the assumption that children are not yet able to do so, the authors hypothesized that this would have consequences for children's production and comprehension of anaphoric subject pronouns and NPs in discourse. In the study, 31 Dutch children (mean age = 5;6) and an adult control group were given a picture storybook production task and a question-after-story task to test comprehension. The children preferred to produce subject pronouns rather than NPs even after a topic shift (thus being overly economical). Furthermore, they failed to interpret the referents of subject pronouns correctly in the comprehension task, presumably because they did not interpret a preceding NP as a topic shift signal (i.e. failing to take into account the speaker's perspective). The authors argue that these asymmetries will vanish once the children have optimized bidirectionality. The fifth paper is ''Asymmetries in the processing of object relatives in child Hebrew and Italian'' by Irena Botwinik. Based on the well-attested observation that the production of object relatives precedes their comprehension, this study lays out a possible explanation for this asymmetry by reanalyzing experimental data on the comprehension of object relatives in Hebrew (Günzberg et al. 2008) and Italian (Arosio et al. 2006). It is suggested that the correct parsing and hence interpretation of object relatives is similar to that of other garden path sentences involving local ambiguities, leading to processing difficulties which are encountered in comprehension but not in production. The sixth contribution, ''A comprehension delay of subject-object [S-O] word order in Dutch preschoolers,'' by Gisi Cannizzaro, presents experimental findings on the comprehension and production of S-O word order in children (mean age = 3;6) and adults. The two groups were tested on the same sentences in both a picture-selection and a picture-description task, for the latter of which eye-tracking data was obtained as an additional online-measure. The children, but not the adults, performed significantly worse on the comprehension than on the production task. The author bases her explanation in the framework of Optimality Theory and suggests that the observed delay in comprehension may arise from a different ranking of constraints in the two modalities which the children still have to overcome. However, since the prediction that animacy (which is related to the PROMINENCE-constraint, Hendriks et al. 2005) would influence comprehension strategies was not borne out by the data, the author concludes with suggestions for further research in order to investigate the possible sources of the asymmetry in more detail. In the seventh paper, ''Asymmetries in children's language performance within and across modalities,'' Oda-Christina Brandt-Kobele and Barbara Höhle first summarize findings from previous studies on production-comprehension asymmetries as well as selected proposals on how to account for the observed patterns. They then consider methodological explanations in more detail, reexamining their own experimental data on the comprehension of verb-inflections in German 3-4 year-olds (Brandt-Kobele & Höhle 2010). Participants were tested in 1. a preferential looking task and 2. a picture-selection task. Since the 3rd-person singular female pronoun and the 3rd-person plural pronoun are homophones in German, only these two pronouns were used in the test sentences in order to force children to obtain information on the number of participants from the verb inflection. While eye-tracking data from the first experiment provides evidence for the children's ability to do so, this is not the case for the second experiment -- the authors suggest that pointing increases the processing load, leading to poorer performance. It is argued that different methods may not only be responsible for the observed within-modality asymmetry (i.e. within comprehension) but also for attested cross-modal asymmetries (i.e. between comprehension and production). The eighth paper is ''Adults' on-line comprehension of object pronouns in discourse,'' by Petra Hendriks, Arina Banga, Jacolien von Rij, Gisi Cannizzaro, and John Hoeks. Studies on English have shown that six-year-olds correctly produce but still often misinterpret object pronouns (but not reflexives), a pattern supposedly resulting from children's inability to observe Principle B of Binding Theory (the so-called Delay of Principle B-Effect). It has been proposed that this could be due experimental artifacts (Conroy et al., 2009) or the fact that the correct interpretation relies on contextual factors (Spenader, Smits, & Hendriks 2009). Results from a picture-verification task the authors conducted with 25 Dutch adults showed that the accuracy of off-line-responses was not influenced by discourse context. However, reaction times were longer when the discourse topic was not established unambiguously in the very beginning. It is argued that this influence of discourse context on adults' online behavior and children's off-line interpretations speaks against the Delay of Principle B-Effect resulting (only) from experimental artifacts. In the ninth contribution, ''Production and comprehension of sentence negation in child German,'' Magdalena Wojtecka, Corinna Koch, Angela Grimm, and Petra Schulz investigate whether there is a developmental asymmetry between the two modalities. 34 German pre-schoolers were tested on the sentence-negator 'nicht' ('not') in an elicited production task and a truth value judgment task, with an interval of 6 months between two test rounds. While children showed mastery of 'nicht' in production already in the first test round (mean age = 3;7), comprehension was still non-adult-like in the second test round (mean age = 4;2). It is suggested that further research should use a variety of methods to test the same children in both modalities in order to shed further light on the observed asymmetry. The tenth and last paper is ''Principle B delays as a processing problem: Evidence from task effects,'' by Sergio Baauw, Shalom Zuckerman, Esther Ruigendijk, and Sergey Avrutin. Similar to Hendriks, Banga, von Rij, Cannizzaro, and Hoeks (this volume) they argue that findings on children's mistakes in the interpretation of object pronouns are not due to experimental artifacts but stem from processing problems. They compare findings from experiments on comprehension involving both picture-selection and truth-value judgment tasks conducted with Dutch and Spanish children and Spanish agrammatic Broca's aphasics. The fact that latter type of task requires more processing resources (since the acceptability of a particular reading has to be considered) should result in poorer performance. In line with this prediction, performance was found to be significantly worse in the truth-value judgment task throughout, suggesting that the Pronoun Interpretation Problem stems from processing difficulties. EVALUATION Considering that all papers focus on or at least include findings from languages other than English, the first aim of the volume -- i.e. to present cross-linguistic research on production-comprehension asymmetries -- has certainly been met. Especially the papers on lesser-studied languages such as Tamil (Sankaran) or Hebrew (Botwinik) are a welcome and much-needed addition to previous research since they widen and evaluate the potential scope of the existing explanatory frameworks. The second and certainly very ambitious aim was "to shed light on the source of the production-comprehension asymmetries" (p. 4). The studies which really succeed in this respect are the ones fulfilling one of the following two criteria: first, in order to rule out the possibility that the observed asymmetry is due to differences between (groups of) participants, it is necessary to test the same children in both modalities. Furthermore, within-modality asymmetries have to be explored by comparing the results obtained via different experimental methods and measures (e.g. offline vs. online). In total, eight of the ten papers in this volume satisfy either the first (e.g. Sankaran; Bittner, Kuehnast & Gagarina) or the second criterion (e.g. Brandt-Kobele & Höhle), thus providing valuable converging evidence on the observed asymmetries both across and within modalities. Since the volume takes a generative grammar perspective, it will at first glance mainly be of interest to nativist language acquisition researchers and generative linguists concerned with the phenomena discussed (most notably pronouns, but also negation and aspect marking). However, the neglect of certain aspects (inevitably) resulting from this theoretical decision could also serve as a starting point for a debate on production-comprehension asymmetries between generativists and researchers working within the competing usage-based paradigm (e.g. Tomasello 2003). For example, the potential role of item-based effects is not considered in this volume. One implication resulting from a usage-based perspective is that one should be careful about crediting children with adult-like productivity, since (spontaneous) productivity has been found to be more item-based and thus more limited than is often assumed in generative approaches (e.g. Dabrowska & Lieven 2005 for questions in English). It is thus to be hoped that this volume stimulates future research (within both generative and usage-based frameworks) in order to shed further light on the observed patterns. Furthermore, on a more general level, the inclusion of studies using both off- and online-measures (e.g. Cannizzaro) and the resulting discussion about which parts of language processing the different methods and measures actually tap into make this volume a stimulating read for everyone interested in the design and evaluation of psycholinguistic experiments. REFERENCES Arosio, Fabrizio, Flavia Adani & Maria Teresia Guasti. 2006. Children's processing of subject and object relatives in Italian. In Adriana Belletti, Elisa Bennati, Christiano Chesi & Ida Ferrari (eds.), Language Acquisition and Development, 15-27. Cambridge Scholars Press. Bloom, Paul, Andrew Baars, Laura Conway & Janet Nicol. 1994. Children's knowledge of binding and coreference. Evidence from spontaneous speech. Language 70. 53-71. Blutner, Reinhard. 2000. Some aspects of optimality in natural language interpretation. Journal of Semantics 17. 189-216. Brandt-Kobele, Oda-Christina & Barbara Höhle. 2010. What asymmetries within comprehension reveal about asymmetries between comprehension and production: The case of verbal inflection in language acquisition. Lingua 120. 1910-1925. Chien, Yu-Chin & Kenneth Wexler. 1990. Children's knowledge of locality conditions on binding as evidence for the modularity of syntax and pragmatics. Language Acquisition 1. 225-295. Conroy, Anastasia, Eri Takahashi, Jeffrey Lidz & Colin Phillips. 2009. Equal treatment for all antecedents. How children succeed with Principle B. Linguistic Inquiry 40. 446-486. Dabrowska, Ewa, & Elena Lieven. 2005. Towards a lexically specific grammar of children's question constructions. Cognitive Linguistics 16(3). 437--474. Fenson, Larry, Philip S. Dale, J. Steven Reznick, Donna Thal, Elizabeth Bates, Jeffrey P. Hartung, Steve Pethick & Judy S. Reilly. 1993. The MacArthur Communicative Development Inventories: User's guide and technical manual. San Diego: Paul H Brookes. Günzberg-Kerbel, Noa, Lilach Shvimer & Naama Friedman. 2008. "Take the hen that the cow kissed the hen": Comprehension and production of various relative clauses by Hebrew speaking children. Language and Brain 7. 23-43 (in Hebrew). Hendriks, Petra, Helen de Hoop & Monique Lamers. 2005. Asymmetries in language use reveal asymmetries in the grammar. In Paul Dekke & Michael Franke (eds.), Proceedings of the 15th Amsterdam Colloquium, 113-118. Amsterdam: Institute for Logic, Language, and Computation. Lehmann, Thomas. 1993. A grammar of modern Tamil. Pondicherry Institute of Linguistic Culture. Prince, Alan & Paul Smolensky. 2004. Optimality Theory: Constraint interaction in generative grammar. Malden, MA: Blackwell. Schiffman, Harold. 1999. A Reference Grammar of Spoken Tamil. Cambridge: Cambridge University Press. Spenader, Jennifer, Erik-Jan Smits & Petra Hendriks. 2009. Coherent discourse solves the Pronoun Interpretation Problem. Journal of Child Language 36. 23-52. Tomasello, Michael. 2003. Constructing a language: A usage-based theory of language acquisition. Cambridge, Mass.: Harvard University Press. Uriagereka, Juan. 1995. The syntax of clitic placement in Western Romance. Linguistic Inquiry 26(1). 79-123. ABOUT THE REVIEWER Ursula Kania (BA/MA) is a research assistant and PhD student at the University of Leipzig, Germany. She teaches undergraduate courses in (synchronic and diachronic) English linguistics. Her main research interests are construction grammar and usage-based approaches to first and second language acquisition. She is a member of the German Cognitive Linguistics Association (GCLA/DGKL) and the International Association for the Study of Child Language (IASCL). Her PhD project is entitled 'The L1-Acquisition of (non)canonical polar question constructions in English.'
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