Grammatical Aspect in Early Child Mandarin: Evidence from a Preferential Looking Experiment

Online Processing of Grammatical Aspect in Subsamples of Preschool Mandarin-acquiring Autistic Children

Grammatical comprehension remains a strength in English-acquiring autistic preschoolers, yet limited studies have examined how autistic children process grammatical constructions in real time, in any language. This study sought to characterize the online processing of grammatical aspect in a diverse sample of Mandarin-acquiring autistic children. Forty-six 3-6-year-old autistic children, further divided into high (N = 23) and low verbal subgroups (N = 23) based on their expressive vocabulary levels, were assessed via Intermodal Preferential Looking (IPL). Children viewed side-by-side renditions of the same event, one of which was ongoing, while the other was completed, paired with familiar verbs with the perfective aspect le or the durative aspect zhe. Both high and low verbal autistic groups demonstrated robust comprehension of le and zhe. Similar to TD children, autistic children in each group showed processing facilities upon the initial presentation of the zhe test audio, but they may be less efficient at le processing. Moreover, the comprehension degree of grammatical aspect correlated negatively with their autism severity scores for the total autistic group; the processing efficiency correlated positively with the production of grammatical aspect for the total and low verbal autistic groups. The findings confirm the strength of processing grammatical aspect in subsamples of preschoolers with autism spanning a wide range of language functioning, suggesting that young autistic group across languages could surmount at least some challenges of aspect acquisition, such as delayed expressive language skills and pragmatic deficits. Additionally, the influencing factors provided insight into the informing intervention strategies that are optimally, developmentally timed.

The development of using function word "zài" to learn novel verbs in young Mandarin speakers

The present research examined whether Mandarin-speaking children could use function words to learn novel verbs and recognize verbs in a new sentential context. In Experiment 1, 3- to 6-year-old children were taught two novel verbs supported by the verb marker "zài." The 5- and 6-year-old children successfully used the function word "zài" to learn novel verbs, but the 3- and 4-year-olds failed to interpret the novel words as verbs. In Experiment 2 and 3, the children had to recognize the newly learned verbs in new sentences containing a different function word (a different verb-biased marker "le" or a non-verb-biased marker "shì"). Results showed that the 5-year-old children could recognize the newly learned verbs with another verb-biased marker "le," but only the 6-year-old children could recognize the newly learned verbs with the non-verb-biased marker "shì." The study verified that Mandarin-speaking children could use the function word "zài" to determine a novel word as a verb and revealed that such an ability appeared between the ages of 4 and 5 years. In addition, the ability to extend a newly learned verb across different morphosyntactic markers is developed in 5- to 6-year-olds.

Acquisition of grammatical aspect by Mandarin-speaking preschool children with autism spectrum disorder

BACKGROUND

Mandarin-speaking children with autism spectrum disorder (ASD) have difficulties producing aspect markers. The difficulties were explained in terms of pragmatic deficits since these children demonstrated strength in the comprehension of aspect markers using the Intermodal Preferential Looking (IPL) task.

AIMS

To verify whether this dissociation between production and comprehension could be replicated using another technique to the IPL, and if all children with ASD show difficulties in the production of aspect markers.

METHODS & PROCEDURES

A total of 34 children with ASD without cognitive delay, half with language impairment (ALI; mean age = 61.25 months old) and half with normal language (ALN, mean age = 61.52 months old), as well as 17 age-matched typically developing (TD) children (mean age = 61.38 months old) participated in a sentence-picture-matching task and a priming picture-description task to investigate their comprehension and production of Mandarin aspect markers zai-, -le and -zhe.

OUTCOMES & RESULTS

In the comprehension task, children in the ALN group performed similarly to their TD peers, but those in the ALI group were less accurate on zai- and -le than TD children; children in all groups received higher accuracy when zai- was combined with Activity rather than Accomplishment verbs, and those in the ALI group was also more accurate when -le occurred with Achievement verbs, in contrast to Activity verbs. In the production task, children in the ALI group produced fewer targets and more irrelevant sentences with zai- than their TD peers, and they tended to produce bare verbs for -le and -zhe than TD children; children in all groups tended to combine zai- with Activity verbs, and those in the ALN group also tended to combine -le with Achievement verbs.

CONCLUSIONS & IMPLICATIONS

The comprehension and production of Mandarin aspect markers by children with ASD are linked to general language abilities, and interactions between lexical and grammatical aspect. Patterns of performance are similar to those of TD peers only for the subgroup with spared global language, while pragmatic deficits are pervasive throughout the spectrum. Therefore, training on formal language, with a specific emphasis on aspectual rather than pragmatic abilities, may be more effective at enhancing the production of aspect markers.

WHAT THIS PAPER ADDS

What is already known on this subject Mandarin-speaking children with ASD have difficulties producing aspect markers but demonstrate strengths in aspectual comprehension via the IPL task. Therefore, it has been proposed that their 'specific' difficulties in aspectual production should be ascribed to their pragmatic deficits. However, pragmatic deficits are highly pervasive in children with ASD while only a subgroup of children with ASD who are impaired in language development (children with ALI) show difficulties in producing tense/aspect morphology. Pursuing this reasoning, pragmatic deficits might not be the critical factor impacting the performance of children with ASD in aspectual production. What this study adds Children with ASD were divided into one group with ALI and the other with normal language (ALN). Results of a sentence-picture-matching and a priming picture-description task illustrated that both groups preserved the comprehension of Mandarin aspect markers zai-, -le and -zhe. However, children with ALI performed worse than age-matched TD children, while children with ALN demonstrated similar performance to TD children in aspectual production. These findings, coupled with the fact that pragmatic challenges affect individuals throughout the spectrum, suggest that general language abilities rather than pragmatics better explain the performance of children with ASD on aspectual production. What are the potential or actual clinical implications of this work? Since general language abilities rather than pragmatic deficits of children with ASD determine their performance on the production of aspect markers, direct training on the use of aspect markers or more global language therapy could benefit children with ASD in the production of aspect markers.

Use of Aspect Markers by Mandarin-speaking Children with High-Functioning Autism Plus Language Impairment and Children with Developmental Language Disorder

INTRODUCTION

This study investigates the comprehension and production of four typical Mandarin aspect markers zai-, -le, -zhe, and -guo by preschool children with high functioning autism plus language impairment (HFA-LI) and those with developmental language disorder (DLD), by comparing them with typically developing age-matched (TDA) children.

METHODS

Twenty children with HFA-LI (M/F: 18/2; mean age: 5.20), 20 with DLD (M/F: 11/9; mean age: 5.25), and 20 TDA children (M/F:14/6; mean age:5.27) completed a picture-choice task and priming picture-description task. The results were analyzed using non-parametric methods.

RESULTS

In the comprehension task, the HFA-LI and DLD groups achieved lower accuracy than the TDA group on zai-, -le, and -guo. The comprehension of aspect markers in the HFA-LI and DLD groups was affected by lexical aspect. In the production task, the HFA-LI and DLD groups produced fewer sentences with the target aspect marker for all four aspect markers than the TDA group. However, they produced more sentences with bare verb forms for zai- and -guo than the TDA group. Furthermore, all three groups tended to combine aspect markers with their semantically inherent types of verbs (e.g, zai-+Activity verbs). The HFA-LI group produced more sentences irrelevant to the task than the other two groups for -zhe and -guo, and some children in the HFA-LI group produced ungrammatical sentences in which both the progressive zai- and perfective -le were used.

CONCLUSIONS

Children with HFA-LI and DLD demonstrate similarities in the comprehension and production of Mandarin aspect markers, given their poor comprehension of the aspect markers zai-, -le and -guo, and poor production of all four aspect markers compared to their TDA peers. Their performance was also impacted by lexical aspect.

Predicting Chinese Preschoolers’ Acquisition of Aspect Markers: A Corpus-Based Study

This study explored the patterns and predictors of aspect marker acquisition of Chinese preschoolers speaking Mandarin Chinese as their first language (L1). Based on a corpus drawn from 157 preschoolers from Beijing, China, this study set out to explore (1) the developmental pattern of aspect marker acquisition; (2) the interactional pattern between grammatical aspect markers and lexical aspects; (3) the production of temporal adverbs with aspect markers; and (4) the predictors of aspect marker acquisition. The main research findings included the following: (1) the Jonckheere–Terpstra test revealed an age-related increase in children’s production of aspect markers, and in particular, there was a significant increase in grammatical aspect markers and lexical aspect subclasses from age 4;6 (Year; Month) onwards; (2) the Friedman’s ANOVAs indicated that -LE was frequently used in combination with most of the lexical aspect subclasses, among them the achievement was the most frequently co-occurring subclass, while the activities came second; (3) a series of Chi-square tests showed that using temporal adverbs in combination with aspect markers became increasingly common among older children; (4) the hierarchical regression analysis identified children’s preschooling experience as a significant predictor of their early aspectual development, after controlling for the other variables.

Comprehension of Mandarin Aspect Markers by Preschool Children With and Without Developmental Language Disorder

Children with developmental language disorder (DLD) reportedly struggle with the comprehension of aspect. However, since aspect and tense are closely entangled in the languages spoken by the children with DLD in previous studies, it is unclear whether the difficulty stems from aspect, tense, or both. Mandarin Chinese, a language without morphological manifestations of tense, is ideal to investigate whether the comprehension of aspect is specifically affected in children with DLD, yet to date work on this is scarce and presents methodological limitations. In this study, we examined whether preschool Mandarin-speaking children with DLD have difficulty in comprehending perfective aspect (represented with the aspect marker -le) compared to imperfective aspect (represented with the aspect markers zai- and -zhe), whether performance can be explained in terms of the pre- vs. post-verbal realization of the aspect markers, and the potential role played by lexical aspect in the comprehension of grammatical aspect. Fourteen preschool children with DLD (mean age: 61.11 months old) and 14 TD children (mean age: 63.4 months old) matched for age and nonverbal intelligence participated in a sentence-picture matching task. Global results showed that, similar to their TD peers, children with DLD performed better on imperfective aspect than perfective aspect. Concerning specific aspect markers, while children with DLD indeed performed similarly to TD children on imperfective -zhe, they obtained significantly lower accuracy than TD children on perfective -le and imperfective zai-. However, considering verb types combined with these aspect markers, results revealed that children with DLD scored significantly higher on the prototypical combination(s) (e.g., zai- + Activity verbs) than on the non-prototypical combination(s) (e.g., zai- + Accomplishment verbs). The performance pattern suggests that the comprehension of aspect markers by children with DLD is particularly affected by lexical aspect. As this also affects younger TD children, children with DLD are arguably at an earlier stage of aspectual development than their age and nonverbal intelligence matched TD peers. Therefore, the aspectual development of children with DLD appears to be delayed rather than deviant. Given this, language programs addressing difficulties in DLD may need to incorporate training on the use of aspect markers, especially targeting their combination with non-prototypical verbs.

Do infants have abstract grammatical knowledge of word order at 17 months? Evidence from Mandarin Chinese

We test the comprehension of transitive sentences in very young learners of Mandarin Chinese using a combination of the weird word order paradigm with the use of pseudo-verbs and the preferential looking paradigm, replicating the experiment of Franck et al. (2013) on French. Seventeen typically-developing Mandarin infants (mean age: 17.4 months) participated and the same experiment was conducted with eighteen adults. The results show that hearing well-formed NP-V-NP sentences triggered infants to fixate more on a transitive scene than on a reflexive scene. In contrast, when they heard deviant NP-NP-V sequences, no such preference pattern was found, a performance pattern that is adult-like. This is at variance with some of the results from Candan et al. (2012), who only found evidence for canonical word order comprehension at almost age 3 when considering fixation time. Furthermore, within the age range tested, performance showed no effect of age or vocabulary size.