Sign Language Of The Netherlands Research Articles

Iconicity and Gesture Jointly Facilitate Learning of Second Language Signs at First Exposure in Hearing Nonsigners

AbstractWhen learning spoken second language (L2), words overlapping in form and meaning with one's native language (L1) help break into the new language. When nonsigning speakers learn a sign language as L2, such overlaps are absent because of the modality differences (L1: speech, L2: sign). In such cases, nonsigning speakers might use iconic form‐meaning mappings in signs or their own gestural experience as gateways into the to‐be‐acquired sign language. In this study, we investigated how both these phenomena may contribute jointly to the acquisition of sign language vocabulary by hearing nonsigners. Participants were presented with three types of signs in the Sign Language of the Netherlands (NGT): arbitrary signs, iconic signs with high or low gesture overlap. Signs that were both iconic and highly overlapping with gestures boosted learning most at first exposure, and this effect remained the day after. Findings highlight the influence of modality‐specific attributes supporting the acquisition of a signed lexicon.

Biased polar question forms in Sign Language of the Netherlands (NGT)

We identify several polar question forms in Sign Language of the Netherlands (NGT)through a production experiment in which we manipulate two types of biases: (i) theprior expectations of the person asking the question, and (ii) the evidence available inthe immediate context of utterance. Our analysis in the present paper focuses on formsinvolving headshake. We find that in some cases headshake expresses negation, as expected,but in other cases it fulfils another function, namely, it is part of a sentence-finalphrase either expressing uncertainty or signalling a request for a response from the addressee,or possibly both at the same time. We further observe that each question formhas a distinct ‘bias profile’, indicating a certain combination of prior expectations andcontextual evidence. Besides these empirical findings, our study also makes a methodologicalcontribution: our experimental design could be used in future work to identifypolar question forms with different bias profiles in sign languages other than NGT, aswell as visual cues accompanying polar questions with different bias profiles in spokenlanguages.

Some properties of neg-raising in three sign languages

Neg-raising, the phenomenon whereby a negation in the main clause of a complex constructionis interpreted as if belonging to the embedded clause, has been intensivelystudied in spoken languages. The same cannot be said for sign languages. In this paper,we investigate the properties of Neg-raising constructions in three sign languages:French Sign Language, Italian Sign Language, and Sign Language of the Netherlands.We report on two syntactic tests we applied to disambiguate Neg-raising and non-Negraisingreadings, showing that Neg-raising constructions have similar properties in thethree sign languages that we studied, as well as in comparable constructions in spokenlanguages. We also discuss some intricate headshake spreading patterns we found inNeg-raising constructions in Sign Language of the Netherlands, a non-manual dominantsign language.

Exploring new methods for measuring, analyzing, and visualizing facial expressions

We explore new methods for measuring, analyzing, and visualizing facial expressionsand demonstrate the utility of these methods in a case study on polar questions in SignLanguage of the Netherlands.

Units of sub-sign meaning in NGT

Abstract This paper provides an overview of all the meaningful sub-sign form units (form-meaning units; FMUs) in lexical signs in Sign Language of the Netherlands (NGT). We investigated the potential meaning of all form features that were previously established in analyses of NGT form by analyzing their distribution in lexical signs. The data set consisted of 500 NGT signs in the lexical database Global Signbank, and a set of 163 elicited newly-formed lexical signs. All features in these data sets appear to bear meaning (at least once). No completely arbitrary features were found, and some features appeared to be always associated to a specific meaning. This toolkit and the set of FMUs in NGT provides a possible basis for cross-linguistic study and for a more fine-grained approach in various research disciplines, for instance psycholinguistics and acquisition, and it may thus advance the theoretical and applied study of sign languages.

Nominal plurals in Sign Language of the Netherlands: Accounting for allomorphy and variation

In both signed and spoken languages, reduplication is a common process in the formation of morphologically complex structures, expressing, e.g., plurality and certain aspectual meanings. A framework in which spoken language reduplication has been formalized frequently is Optimality Theory (OT). While an important attribute of OT-constraints is their universality, to date, the question to what extent such constraints are modality-independent, and thus work for sign language reduplication as well, remains largely unanswered. In the present study, we offer the first OT-formalization of plural reduplication in Sign Language of the Netherlands (NGT). The NGT-data reveal that this language features different plural allomorphs, the choice of which depends on phonological properties of the base noun. However, we also identify variation, e.g., all noun types allow for zero marking.In our formalization, we aim to introduce constraints that are maximally modality-independent, using constraint types that have previously been proposed for spoken language reduplication. Our formalization is the first to take into account base-reduplicant faithfulness for a sign language, and also the first to account for variation in sign language data by employing stochastic OT, whereby some noise is added to the ranking value of each constraint at evaluation time. Evaluating the modality-(in)dependence of our proposed account suggests that the types of constraints we employ as well as the evaluation in the spirit of stochastic OT are not specific to a modality, while the featural implementation is inevitably modality-dependent.

Lexical comprehension within and across sign languages of Belgium, China and the Netherlands

There are hundreds of known sign languages around the world today, distinct languages each with its own historical and cultural context. Nevertheless, it is well known among signers who move through international spaces and across signing communities that a certain degree of mutual intelligibility is achievable during so-called cross-signing, even between historically unrelated sign languages. This has been explained by shared experiences, translanguaging competence and a higher degree of iconicity in the lexicons of sign languages. In this paper, I investigate one aspect of mutual intelligibility between four different sign languages: Sign Language of the Netherlands (NGT), Flemish Sign Language (VGT), French-Belgian Sign Language (LSFB) and Chinese Sign Language (CSL). Through a comprehension task with NGT signs, I analyze how accurately signers of the four sign languages identify NGT signs in an experimental sign-to-picture matching task, matching one target sign to one of four meaning choices: one target meaning and three distractors based on either form-similarity or plausible iconicity-mapping to the target sign. The results show that signers of VGT and LSFB perform better than CSL signers on this task, which may be attributed to lexical overlap, shared iconic mappings and experiences, as well as language contact due to geographic proximity. It is found that misidentification of target meanings is mostly caused by distractors with iconically plausible mappings between form and meaning. Across the four languages, signers’ self-evaluations of their performance on the lexical comprehension task correlate with test scores, demonstrating that they generally judge their level of comprehension accurately.

Hesitation Markers in Sign Language of the Netherlands A Corpus-Based Study

We present one of the first detailed studies on hesitation marking in a sign language. Based on the analysis of a set of monologues and dialogues from the Corpus NGT (Crasborn and Zwitserlood 2008; Crasborn, Zwitserlood, and Ros 2008), we describe the form and position of manual and nonmanual markers of hesitation in Sign Language of the Netherlands (NGT). We show that palm-up, used as a hesitation marker, is akin to a "filled pause" in spoken language, both in its formal properties and its distribution. palm-up is regularly used to mark hesitation in dialogues, but far less commonly in monologues, which we suggest indicates that palm-up is used deliberately by signers to signal a delay in signing (cf. e.g., Maclay and Osgood 1959). Other manual markers of hesitation include sign holds and breaks in signing; their form and patterning in the data suggest they are closer to "unfilled pauses" in speech. As for nonmanuals, we show that all instances of hesitation in our data are marked by a change in the direction of eye gaze, suggesting that this is a clear pragmatic cue that signers use—intentionally or not—to signal a planning problem in signing. This fits well with previous observations that eye gaze plays an important role in turn-taking regulation in sign languages (e.g., Baker 1977).

As strong as an NPI in LSF, NGT and LIS

Negative polarity items emerge from the interaction between some propertiesof the semantic module of human language and its lexicon. This leads tothe expectation that they should be equally common in spoken and sign language,contrary to what has been documented. We describe the sign UNTIL in French SignLanguage, Italian Sign Language and Sign Language of the Netherlands. We showthat under its punctual reading, UNTIL behaves as a strong negative polarity item,just like English until. We also discuss why more prototypical cases of polarityitems like any or ever are much harder to find in sign language

Interference: a case study of lexical borrowings in international sign interpreting

ABSTRACT In simultaneous interpreting studies, the concept of interference – namely, the marks of the source language in the target language – is perceived as a negative phenomenon. However, interference is likely to happen at a lexical level when the target language does not have its own lexicon. This is the case in international sign (IS), which can be defined as a mix of different sign languages, in which the lexical items are not fixed. This qualitative study analyses a dataset of interpretation from Sign Language of the Netherlands (NGT) to IS by a team of two Dutch, deaf interpreters at an international conference in Nijmegen, the Netherlands. We observed the occurrence of source NGT lexical items borrowed into the IS target output and considered the strategies used in this. The phenomenon was found to be recurrent. In addition, depending upon the type of lexical items, the strategies used to borrow NGT lexicon were found to differ. Thus, we have described the set of strategies and examined the results in comparison with previous findings. As a practical output, this study could inspire current and future IS interpreters to expand their set of interpreting strategies.

Measuring Theory of Mind in Adolescents With Language and Communication Problems: An Ecological Perspective.

We tested if the newly designed ToMotion task reflects a single construct and if the atypical groups differ in their performance compared to typically developing peers. Furthermore, we were interested if ToMotion maps a developmental sequence in a Theory of Mind (ToM) performance as exemplified by increasing difficulty of the questions asked in every item. The sample consisted of 13 adolescents that have been diagnosed with a developmental language disorder (DLD) and 14 adolescents that are deaf or hard of hearing (DHH). All of these adolescents were in special schools for secondary vocational education. The control group existed of 34 typical developing adolescents (TD) who were in regular intermediate vocational education, ranging from level 2 to 4. The ToMotion, available in a spoken Dutch version and in a version in Sign Language of the Netherlands (SLN), was used to map ToM abilities. An attempt has been made to fill the gap of missing studies of ToM in adolescents by developing a new measuring instrument. In conclusion, assessing ToM with the ToMotion results in a picture that DHH adolescents score lower than TD peers. However, their scores are as consistent as those of the TD peers. The picture of DLD adolescents is the reverse. They show no differences in ToM scores, but seem to be somewhat more inconsistent compared to TD peers. We provide a discussion on those results and its implications for future research. What this paper adds? The current study introduces a new visual Theory of Mind (ToM) task, ToMotion, designed specifically to assess ToM in adolescents in an ecologically valid way and adapted to the needs of adolescents with language and communication difficulties.

Predictors of Word and Text Reading Fluency of Deaf Children in Bilingual Deaf Education Programmes

Reading continues to be a challenging task for most deaf children. Bimodal bilingual education creates a supportive environment that stimulates deaf children’s learning through the use of sign language. However, it is still unclear how exposure to sign language might contribute to improving reading ability. Here, we investigate the relative contribution of several cognitive and linguistic variables to the development of word and text reading fluency in deaf children in bimodal bilingual education programmes. The participants of this study were 62 school-aged (8 to 10 years old at the start of the 3-year study) deaf children who took part in bilingual education (using Dutch and Sign Language of The Netherlands) and 40 age-matched hearing children. We assessed vocabulary knowledge in speech and sign, phonological awareness in speech and sign, receptive fingerspelling ability, and short-term memory at time 1 (T1). At times 2 (T2) and 3 (T3), we assessed word and text reading fluency. We found that (1) speech-based vocabulary strongly predicted word and text reading at T2 and T3, (2) fingerspelling ability was a strong predictor of word and text reading fluency at T2 and T3, (3) speech-based phonological awareness predicted word reading accuracy at T2 and T3 but did not predict text reading fluency, and (4) fingerspelling and STM predicted word reading latency at T2 while sign-based phonological awareness predicted this outcome measure at T3. These results suggest that fingerspelling may have an important function in facilitating the construction of orthographical/phonological representations of printed words for deaf children and strengthening word decoding and recognition abilities.

Cross-language activation in bimodal bilinguals: Do mouthings affect the co-activation of speech during sign recognition?

AbstractThe present study provides insight into cross-language activation in hearing bimodal bilinguals by (1) examining co-activation of spoken words during processing of signs by hearing bimodal bilingual users of Dutch (their L1) and Sign Language of the Netherlands (NGT; late learners) and (2) investigating the contribution of mouthings to bimodal cross-language activation. NGT signs were presented with or without mouthings in two sign-picture verification experiments. In both experiments the phonological relation (unrelated, cohort overlap or final rhyme overlap) between the Dutch translation equivalents of the NGT signs and pictures was manipulated. Across both experiments, the results showed slower responses for sign-picture pairs with final rhyme overlap relative to phonologically unrelated sign-picture pairs, indicating co-activation of the spoken language during sign processing, but no significant effect for sign-picture pairs with cohort overlap in Dutch. In addition, co-activation was not affected by the presence or absence of mouthings.

Rezension: Vadim Kimmelman (2019): Information structure in sign languages. Evidence from Russian Sign Language and Sign Language of the Netherlands. Berlin: De Gruyter and Ishara Press.

Rezension: Vadim Kimmelman (2019): Information structure in sign languages. Evidence from Russian Sign Language and Sign Language of the Netherlands. Berlin: De Gruyter and Ishara Press.

Phonological restrictions on nominal pluralization in Sign Language of the Netherlands: evidence from corpus and elicited data

Abstract This study focuses on nominal pluralization in Sign Language of the Netherlands (NGT). The aim is to offer a comprehensive description of nominal pluralization processes in the language, based on both corpus data and elicited data, taking into account potential phonological restrictions. The results reveal that NGT nouns can undergo several pluralization processes, the main ones being simple reduplication (i.e., repeating the noun sign at one location) and sideward reduplication (i.e., repeating the noun sign while moving the hand sideward). The choice of pluralization process depends on phonological properties of the base noun: (i) nouns that are body-anchored or involve a complex movement undergo simple reduplication; (ii) nouns articulated at the lateral side of the signing space undergo sideward reduplication; (iii) nouns articulated on the midsagittal plane can undergo both simple and sideward reduplication. Strikingly, the data show considerable variation, and all types of nouns can be zero-marked, that is, plural marking on the noun is not obligatory. The results further suggest that all nouns can undergo at least one type of reduplication. Thus, while phonological properties of the base noun influence the type of reduplication, they do not block reduplication altogether. Plural reduplication in NGT is therefore less constrained than has been reported for other sign languages, where certain noun types cannot undergo reduplication. This shows that reduplication – despite being iconically motivated – is subject to language-specific grammatical constraints.

Phonological restrictions on nominal pluralization in Sign Language of the Netherlands: evidence from corpus and elicited data

Abstract This study focuses on nominal pluralization in Sign Language of the Netherlands (NGT). The aim is to offer a comprehensive description of nominal pluralization processes in the language, based on both corpus data and elicited data, taking into account potential phonological restrictions. The results reveal that NGT nouns can undergo several pluralization processes, the main ones being simple reduplication (i.e., repeating the noun sign at one location) and sideward reduplication (i.e., repeating the noun sign while moving the hand sideward). The choice of pluralization process depends on phonological properties of the base noun: (i) nouns that are body-anchored or involve a complex movement undergo simple reduplication; (ii) nouns articulated at the lateral side of the signing space undergo sideward reduplication; (iii) nouns articulated on the midsagittal plane can undergo both simple and sideward reduplication. Strikingly, the data show considerable variation, and all types of nouns can be zero-marked, that is, plural marking on the noun is not obligatory. The results further suggest that all nouns can undergo at least one type of reduplication. Thus, while phonological properties of the base noun influence the type of reduplication, they do not block reduplication altogether. Plural reduplication in NGT is therefore less constrained than has been reported for other sign languages, where certain noun types cannot undergo reduplication. This shows that reduplication – despite being iconically motivated – is subject to language-specific grammatical constraints.

Asymmetry and Contrast: Coordination in Sign Language of the Netherlands

This paper investigates coordination in Sign Language of the Netherlands (NGT). We offer an account for a typologically unusual coordination pattern found in this language. We show that the conjuncts of a coordinated structure in NGT may violate a constraint governing coordinated structures in spoken languages, which we refer to as the ‘Parallel Structure Constraint’. The violation consists in asymmetric fronting in the second conjunct of a coordinated structure. We argue that a violation of the Parallel Structure Constraint is acceptable in NGT in order to express a contrast across the conjuncts. Hence asymmetric reordering in the second conjunct is a strategy that allows signers to obtain the desired strength of marking when in situ marking is insufficient.

A Tale of Two Modalities: Sign and Speech Influence Each Other in Bimodal Bilinguals

Bimodal bilinguals are hearing individuals fluent in a sign and a spoken language. Can the two languages influence each other in such individuals despite differences in the visual (sign) and vocal (speech) modalities of expression? We investigated cross-linguistic influences on bimodal bilinguals’ expression of spatial relations. Unlike spoken languages, sign uses iconic linguistic forms that resemble physical features of objects in a spatial relation and thus expresses specific semantic information. Hearing bimodal bilinguals (n = 21) fluent in Dutch and Sign Language of the Netherlands and their hearing nonsigning and deaf signing peers (n = 20 each) described left/right relations between two objects. Bimodal bilinguals expressed more specific information about physical features of objects in speech than nonsigners, showing influence from sign language. They also used fewer iconic signs with specific semantic information than deaf signers, demonstrating influence from speech. Bimodal bilinguals’ speech and signs are shaped by two languages from different modalities.

Review of:] V. Kimmelman. Information structure in sign languages. Evidence from Russian Sign Language and Sign Language of the Netherlands. Boston; Berlin: De Gruyter Mouton; Ishara Press, 2019.

Review of:] V. Kimmelman. Information structure in sign languages. Evidence from Russian Sign Language and Sign Language of the Netherlands. Boston; Berlin: De Gruyter Mouton; Ishara Press, 2019.

Fill the gap: A novel test to elicit nominal plurals in Sign Language of the Netherlands

The present study introduces a novel gap-filling test to elicit plural nouns in Sign Language of the Netherlands (NGT). As of yet, nominal plurals in NGT have not been described in detail, as eliciting plural nouns is not without challenges. In previous research on NGT (Zwitserlood and Nijhof 1999), native signers were asked to describe pictures of plural objects. However, when describing pictures, the signers automatically also expressed the spatial distribution of the objects depicted on the stimulus picture, using localization. As a consequence, it remains unclear what ‘pure’ plurals – without localization – look like. The goal of our gap-filling task is to disentangle pluralization from localization: participants are asked to insert plural nouns in signed sentence contexts where the spatial distribution of the referents is irrelevant. After piloting the task, five deaf native signers participated. The task succeeded in eliciting pure plural forms that were not spatially distributed, and the results show that NGT optionally employs reduplication to mark the pure plural of nouns. We conclude that our gap-filling task successfully controls for localization, targeting the desired structure without using written language. In future studies, the gap-filling task can be applied to other sign languages, targeting also other construction types.