The effect of a priming-based training on the production of object clitic pronouns in Italian speaking children with DLD.

Children with developmental language disorders (DLD) have impaired morphosyntactic abilities despite age-appropriate nonverbal cognitive abilities and no hearing disorders or brain injury. The persistent omission of third-person object clitic pronouns (3DO clitics) has been proven to be a clinical marker of developmental language disorders (DLD) for both preschool and school-aged Italian-speaking children. According to the model of 3DO clitic derivation recently brought to attention, 3DO clitic omission is a morphosyntactic matter and, therefore, we argue that the production of 3DO clitics can be enhanced through morphosyntactic priming in children with DLD. To corroborate this hypothesis, we administered a 3DO clitic training based on a morphosyntactic priming paradigm to 23 typically developing (TD) children and 11 children with DLD. Results show that their 3DO clitic production is enhanced after the training and that these effects are persistent in time. Our results suggest that a priming-based training can concretely help children with DLD in their language development.

Two clinical markers for DLD in monolingual Italian speakers: what can they tell us about second language learners with DLD?

A large number of children worldwide are only exposed to their L2 around 3 years of age and can exhibit linguistic behaviours that resemble those of a child with Developmental Language Disorder (DLD). This can lead to under- or over-identification of DLD in this population. This study endeavors to contribute to overcoming this problem, by determining whether two specific clinical markers used with the Italian monolingual population can also be used with early L2 acquiring children, namely clitic production and non-word repetition. Our study involved two groups of 5-year-old L2 learners of Italian from various language backgrounds; 18 children had been referred to Speech and Language Therapy (SLT) services (EL2_DLD), and 30 children were typically developing (EL2_TD). The participants completed an Italian clitic production task and a non-word repetition task based on Italian phonotactics. Data was also collected from the participants' caregivers with the ALDeQ Parental Questionnaire to obtain information about the children's L1. Our results suggest that non-word repetition and clitic production in Italian are potentially useful for identifying L2 learners of Italian with DLD, at the age of 5 years. The repetition of non-words is highly accurate in identifying children with DLD among the participants, while clitic production is somewhat less discriminative in this sample. This study is a first step towards uncovering clinical markers that could be used to determine the presence of DLD in children acquiring their L2.

Production of third-person direct object clitics in children with cochlear implants speaking Italian.

Previous research has shown that the production of third-person singular accusative object clitics (3DO clitics) might be taxing in Italian-speaking pre-school children with cochlear implants (CIs). We investigated this topic by assessing 3DO clitic production in 14 children with an average age of 8 years, who had received CI between age 1 and 4. The first goal of the study was to analyze whether school-aged children with CIs exhibit atypical behavior in 3DO clitic production. The second goal was to analyze whether children with CIs are prone to agreement errors in case of gender mismatch between the subject and the 3DO clitic, as has been shown for normal-hearing, typically developing children. To achieve this, we used two tasks in which subject and object clitic grammatical genders were manipulated so that they would or would not match. As for the first goal, the majority of children with CIs had good performance on the clitic tasks. However, some participants' performance was poor. The pattern of deviant responses differed among the poor performers. We believe that children with CIs showing impairments in 3DO clitic production need careful individual analysis in order to plan effective speech therapy. As for the second goal, children with CIs were more prone to agreement errors in the mismatch condition compared to the match condition; this dimension needs to be considered when assessing and eventually rehabilitating clitic production.

Morphosyntactic weaknesses in Developmental Language Disorder: the role of structure and agreement configurations.

Agreement is a morphosyntactic dependency which is sensitive to the hierarchical structure of the clause and is constrained by the structural distance that separates the elements involved in this relation. In this paper we present two experiments, providing new evidence that Italian-speaking children with Developmental Language Disorder (DLD), as well as Typically Developing (TD) children, are sensitive to the same hierarchical and locality factors that characterise agreement in adult grammars. This sensitivity holds even though DLD children show accrued difficulties in more complex agreement configurations. In the first experiment, a forced-choice task was used to establish whether children are more affected in the computation of S-V agreement when an element intervenes hierarchically or linearly in the agreement relation: DLD children are more subject to attraction errors when the attractor intervenes hierarchically, indicating that DLD children discriminate between hierarchical and linear configurations. The second experiment, also conducted through a forced-choice task, shows that the computation of agreement in DLD children is more 'fragile' than in TD children (and also in children with a primary impairment in the phonological domain), in that it is more sensitive to the factors of complexity identified in Moscati and Rizzi's (2014) typology of agreement configurations. To capture the agreement pattern found in DLD children, we put forth a novel hypothesis: the Fragile Computation of Agreement Hypothesis. Its main tenet is that DLD children make use of the same grammatical operations employed by their peers, as demonstrated in Experiment 1, but difficulties increase as a function of the complexity of the agreement configuration.

Cross-linguistic patterns in the acquisition of quantifiers.

Learners of most languages are faced with the task of acquiring words to talk about number and quantity. Much is known about the order of acquisition of number words as well as the cognitive and perceptual systems and cultural practices that shape it. Substantially less is known about the acquisition of quantifiers. Here, we consider the extent to which systems and practices that support number word acquisition can be applied to quantifier acquisition and conclude that the two domains are largely distinct in this respect. Consequently, we hypothesize that the acquisition of quantifiers is constrained by a set of factors related to each quantifier's specific meaning. We investigate competence with the expressions for "all," "none," "some," "some…not," and "most" in 31 languages, representing 11 language types, by testing 768 5-y-old children and 536 adults. We found a cross-linguistically similar order of acquisition of quantifiers, explicable in terms of four factors relating to their meaning and use. In addition, exploratory analyses reveal that language- and learner-specific factors, such as negative concord and gender, are significant predictors of variation.

The production of wh-questions in Italian-speaking children with SLI.

We aim at determining whether 7-year-old Italian-speaking children with Specific Language Impairment (SLI): (1) have problems with the production of wh- questions; (2) display a subject/object asymmetry in producing which- and who questions; (3) attempt to simplify questions, especially which- questions; (4) have difficulties with movement and verbal agreement in wh- questions. We elicited subject and object who and which NP questions in 10 children with SLI (M = 7;2), in 10 chronological age (CA)-matched controls (M = 7;2) and 10 language-matched controls (M = 5;2). Results showed that (1) children with SLI produced fewer questions than both control groups; (2) a subject/object asymmetry was observed in who questions but not in which NP questions; (3) which NP questions were more problematic than who questions; (4) children with SLI produced more agreement errors and resorted to simplification strategies to avoid wh- question production. Results point to a grammatical deficit due to the computation of complex grammatical relations and suggest that there is a misalignment among pieces of linguistic competence needed to form Italian wh- questions (wh- movement and agreement computation). Outcomes have implications for clinical assessment recommending the production of wh- questions to be considered in the evaluation of SLI in Italian.

The Compositionality of Logical Connectives in Child Italian.

This paper investigates the interpretation that Italian-speaking children and adults assign to negative sentences with disjunction and negative sentences with conjunction. The aim of the study was to determine whether children and adults assign the same interpretation to these types of sentences. The Semantic Subset Principle (SSP) (Crain et al., in: Clifton, Frazer, Rayner (eds) Perspective on sentence processing, Lawrence Erlbaum, Hillside, 1994) predicts that children's initial scope assignment should correspond to the interpretation that makes sentences true in the narrowest range of circumstances, even when this is not the interpretation assigned by adults. This prediction was borne out in previous studies in Japanese, Mandarin and Turkish. As predicted by the SSP, the findings of the present study indicate that Italian-speaking children and adults assign the same interpretation to negative sentences with conjunction (conjunction takes scope over negation). By contrast, the study revealed that some children differed from adults in the interpretation they assigned to negative sentences with disjunction. Adults interpreted disjunction as taking scope over negation, whereas children were divided into two groups: one group interpreted disjunction as taking scope over negation as adults did; another group interpreted negation as taking scope over disjunction, as predicted by the SSP. To explain the findings, we propose that Italian-speaking children initially differ from adults as dictated by the SSP, but children converge on the adult grammar earlier than children acquiring other languages due to the negative concord status of Italian, including the application of negative concord to sentences with disjunction.

Chinese Children's Knowledge of Topicalization: Experimental Evidence from a Comprehension Study.

There is a debate as to whether topic structures in Chinese involve A'-movement or result from base-generation of the topic in the left periphery. If Chinese topicalization was derived by movement, under the assumptions of Friedmann et al.'s Relativized Minimality (Lingua 119:67-88, 2009), we would expect children's comprehension of object topicalization (with OSV order) to be worse than their comprehension of subject topicalization (with SVO order). This study examined 146 Mandarin-speaking children from age three to age six by means of a picture-sentence matching task with an appropriate context. The results showed a subject/object asymmetry when the topic marker is overt, and no asymmetry when the topic marker is covert. This suggests that the presence or absence of topic markers play an important role in children's comprehension of topicalization. We propose that both structures involve movement in the adult grammar, but not in the child grammar, at least initially. Sentences without overt topic markers are base-generated on a par with gapless sentences with a topic, and the base-generation analysis is abandoned as soon as children learn the syntax and semantics of topic markers, which function as attractors of topics.

The acquisition of Chinese relative clauses: contrasting two theoretical approaches.

This study examines the comprehension of relative clauses by Chinese-speaking children, and evaluates the validity of the predictions of the Dependency Locality Theory (Gibson, 1998, 2000) and the Relativized Minimality approach (Friedmann, Belletti & Rizzi, 2009). One hundred and twenty children from three to eight years of age were tested by using a character-sentence matching task. We found a preference for subject relative clauses that persists as children grow older. This preference is predicted by the Relativized Minimality approach, but not by the Dependency Locality Theory. In addition, we observed a fine-grained class of errors in comprehension. We discuss it in the light of the head-final status of Chinese relative clauses.

How early L2 children perform on Italian clinical markers of SLI: A study of clitic production and nonword repetition.

Early second language (EL2) learners generally perform more poorly than monolinguals in specific language domains, presenting similarities with children affected by specific language impairment (SLI). As a consequence, it can be difficult to correctly diagnose this disorder in EL2 children. The current study investigated the performance of 120 EL2 and 40 age-matched monolingual children in object clitic production and nonword repetition, which are two sensitive clinical markers of SLI in Italian. Results show that EL2 children underperform in comparison to monolinguals in the clitic task. However, in contrast to what is reported on Italian-speaking children with SLI, EL2 children tend not to omit clitics but instead produce the incorrect form, committing agreement errors. No differences are found between EL2 and monolingual children on nonword repetition. These results suggest that, at least in Italian, EL2 children only superficially resemble children with SLI and, on closer inspection, present a qualitatively and quantitatively different linguistic profile.

The production of direct object clitics in pre-school- and primary school-aged children with specific language impairments.

Third-person direct object (DO) clitic pronoun production is examined through an elicited production method in pre-school- and primary school-aged groups of Italian children with specific language impairment (SLI) to establish whether there is an improvement from age 5 years to age 7 years and whether there are qualitative differences in the two groups' responses. It was found that 5- and 7-year-old Italian children with SLI produce fewer third-person DO clitics than same-age peers. The kind of responses they provide changes: at 5 years, children with SLI tend to omit clitics, while at 7 years, they use a full noun. Production of third-person DO clitics is a persistent challenge for children with SLI and is confirmed to be a good clinical marker both at 5 and 7 years of age.

The acquisition of SV order in unaccusatives: manipulating the definiteness of the NP argument.

In two sentence repetition experiments, we investigated whether four- and five-year-olds master distinct representations for intransitive verb classes by testing two syntactic analyses of unaccusatives (Burzio, 1986; Belletti, 1988). Under the assumption that, with unaccusatives, the partitive case of the postverbal argument is realized only on indefinites (Belletti, 1988), we tested whether children used indefiniteness as a feature to assign the partitive case to the verb's argument. In the sentences, we manipulated whether the subject preceded or followed the (unaccusative or unergative) verb and whether the subject was expressed by means of a definite or indefinite NP. With unaccusatives, children tended to place the subject in the postverbal position when the subject NP was indefinite, whereas, when the sentence presented a definite postverbal subject, children preferred to place the definite subject in the preverbal position. Definiteness exerted an effect only with unaccusatives, suggesting that children treated unergatives and unaccusatives differently.

Number dissimilarities facilitate the comprehension of relative clauses in children with (Grammatical) Specific Language Impairment.

This study investigates whether number dissimilarities on subject and object DPs facilitate the comprehension of subject- and object-extracted centre-embedded relative clauses in children with Grammatical Specific Language Impairment (G-SLI). We compared the performance of a group of English-speaking children with G-SLI (mean age: 12;11) with that of two groups of younger typically developing (TD) children, matched on grammar and receptive vocabulary, respectively. All groups were more accurate on subject-extracted relative clauses than object-extracted ones and, crucially, they all showed greater accuracy for sentences with dissimilar number features (i.e., one singular, one plural) on the head noun and the embedded DP. These findings are interpreted in the light of current psycholinguistic models of sentence comprehension in TD children and provide further insight into the linguistic nature of G-SLI.

Failure to produce direct object clitic pronouns as a clinical marker of SLI in school-aged Italian speaking children.

We administrated a clitic elicitation task to 16 school-aged Italian speaking children with specific language impairment (SLI) in order to investigated whether the failure to produce third person direct object clitics (DO clitics) is a persistent clinical marker of SLI in Italian; we examined whether this failure also extends to reflexive clitics. Results show that Italian children with SLI aged 6 to 9;11 years fail to produce DO clitics and tend to produce a lexical noun introduced by a determiner (full DP) in the argument postverbal position instead of the pronoun; the production of reflexive clitics is preserved in the same population. Receiver operating characteristic curve analyses and computation of likelihood ratios show that the failure to produce DO clitics is a persistent good clinical marker of SLI in Italian. We argue that DO clitic production requires complex morphosyntactic operations that are hardly achieved by children with SLI; our findings are compatible with theories considering SLI as a deficit of processing complex linguistic relations.

Undercompression errors as evidence for conceptual primitives.

The Meaning First Approach offers a model of the relation between thought and language that includes a Generator and a Compressor. The Generator build non-linguistic thought structures and the Compressor is responsible for its articulation through three processes: structure-preserving linearization, lexification, and compression via non-articulation of concepts when licensed. One goal of this paper is to show that a range of phenomena in child language can be explained in a unified way within the Meaning First Approach by the assumption that children differ from adults with respect to compression and, specifically, that they may undercompress in production, an idea that sets a research agenda for the study of language acquisition. We focus on dependencies involving pronouns or gaps in relative clauses and wh-questions, multi-argument verbal concepts, and antonymic concepts involving negation or other opposites. We present extant evidence from the literature that children produce undercompression errors (a type of commission errors) that are predicted by the Meaning First Approach. We also summarize data that children's comprehension ability provides evidence for the Meaning First Approach prediction that decompression should be challenging, when there is no 1-to-1 correspondence.

The ReadFree tool for the identification of poor readers: a validation study based on a machine learning approach in monolingual and minority-language children.

In this study, we validated the "ReadFree tool", a computerised battery of 12 visual and auditory tasks developed to identify poor readers also in minority-language children (MLC). We tested the task-specific discriminant power on 142 Italian-monolingual participants (8-13 years old) divided into monolingual poor readers (N = 37) and good readers (N = 105) according to standardised Italian reading tests. The performances at the discriminant tasks of the "ReadFree tool" were entered into a classification and regression tree (CART) model to identify monolingual poor and good readers. The set of classification rules extracted from the CART model were applied to the MLC's performance and the ensuing classification was compared to the one based on standardised Italian reading tests. According to the CART model, auditory go-no/go (regular), RAN and Entrainment100bpm were the most discriminant tasks. When compared with the clinical classification, the CART model accuracy was 86% for the monolinguals and 76% for the MLC. Executive functions and timing skills turned out to have a relevant role in reading. Results of the CART model on MLC support the idea that ad hoc standardised tasks that go beyond reading are needed.

Could Linguistic Complexity Be Automatically Evaluated? A Multilingual Study on WHO's Emergency Learning Platform.

The ability of assessing any type of linguistic complexity of any given contents could potentially improve knowledge reproduction, especially tacit knowledge which can be expensive during a pandemic. In this paper, we develop a simple and crosslinguistic model of complexity which considers formal accounts on the study of linguistic systems, but can be easily implemented by non-linguists' groups, e.g., communication experts and policymakers. To test our model, we conduct a study on a corpus extracted from the World Health Organization (WHO)'s emergency learning platform in 6 languages. Data extracted from open-access encyclopaedic entries act as control groups. The results show that the measurements adopted signal a trend for a minimization of complexity and can be exploited as features for (automatic) text classification.

Identifying the risk of dyslexia in bilingual children: The potential of language-dependent and language-independent tasks.

This study investigates the linguistic processing and non-linguistic cognitive abilities of monolingual and bilingual children with and without reading difficulties and examines the relationship between these skills and reading. There were 72 Italian-speaking children: 18 monolingual good readers (MONO-GR, Mage = 10;4), 19 monolingual poor readers (MONO-PR, Mage = 10;3), 21 bilingual good readers (BI-GR, Mage = 10;6), and 16 bilingual poor readers (BI-PR, Mage = 10;6). All bilingual children spoke Italian as their L2. Children completed a battery of standardized Italian reading tests, language-dependent tasks: nonword repetition (NWR), sentence repetition (SR), and phonological awareness (PA), and language-independent tasks: timing anticipation, beat synchronization, inhibition control, auditory reaction time, and rapid automatized naming (RAN). Poor readers scored below good readers on the language-dependent tasks, including NWR, PA, and SR. Beat synchronization was the only language-independent task sensitive to reading ability, with poor readers showing greater variability than good readers in tapping to fast rhythms. SR was the only task influenced by language experience as bilinguals underperformed monolinguals on the task. Moreover, there were weak to moderate correlations between performance on some language-dependent tasks (NWR, PA), language-independent tasks (inhibition control, RAN), and reading measures. Performance on the experimental tasks (except for RAN) was not associated with the length of exposure to Italian. The results highlight the potential of NWR, PA, SR, and beat synchronization tasks in identifying the risk of dyslexia in bilingual populations. Future research is needed to validate these findings and to establish the tasks' diagnostic accuracy.

Rapid Automatized Naming as a Universal Marker of Developmental Dyslexia in Italian Monolingual and Minority-Language Children.

Rapid Automatized Naming (RAN) is considered a universal marker of developmental dyslexia (DD) and could also be helpful to identify a reading deficit in minority-language children (MLC), in which it may be hard to disentangle whether the reading difficulties are due to a learning disorder or a lower proficiency in the language of instruction. We tested reading and rapid naming skills in monolingual Good Readers (mGR), monolingual Poor Readers (mPR), and MLC, by using our new version of RAN, the RAN-Shapes, in 127 primary school students (from 3rd to 5th grade). In line with previous research, MLC showed, on average, lower reading performances as compared to mGR. However, the two groups performed similarly to the RAN-Shapes task. On the contrary, the mPR group underperformed both in the reading and the RAN tasks. Our findings suggest that reading difficulties and RAN performance can be dissociated in MLC; consequently, the performance at the RAN-Shapes may contribute to the identification of children at risk of a reading disorder without introducing any linguistic bias, when testing MLC.

Disambiguating information and memory resources in children's processing of Italian relative clauses.

We investigated the role of number agreement on verb and of animacy in the comprehension of subject and object relative clauses in 51 monolingual Italian-speaking children, mean age 9:33, tested through a self-paced listening experiment with a final comprehension question. A digit span test and a listening span test were also administered to examine the role of memory in comprehension. Subject relative clauses were easier to comprehend than object relative clauses; animacy of the relative clause head improved comprehension of object relative clauses; memory, as measured by the digit span test, modulates comprehension of object relative clauses, both with animate and inanimate heads, as shown in response accuracy. Although all children process number agreement morphology on the verb, only some perform a correct reanalysis, as shown by the accuracy measures.We argue that number agreement disambiguation is particularly taxing for children, as it provides a negative symptom in the sense of Fodor and Inoue (J Psycholinguist Res 29(1):25­36, 2000)and reanalysis requires them to hold two dependencies in memory.