Linguistic diversity, language documentation and psycholinguistics: The role of stimuli

Our psycholinguistic theories tend to be based on empirical data from a biased sample of well-described languages, not doing justice to the enormous linguistic diversity in the world. As Evans and Levinson (2009: 447) put it, a major challenge of our discipline is to harness this linguistic diversity and “to show how the child’s mind can learn and the adult’s mind can use, with approximately equal ease, any one of this vast range of alternative systems.” This paper explores some of the possibilities and limits of how language documentation and description can contribute to taking up this challenge, focusing on the role of both natural data and stimuli in this enterprise.National Foreign Language Resource Cente

Child-directed language – and how it informs the documentation and description of the adult language

Language documentation efforts are most often concerned with the adult language and usually do not include the language used by and with children. Essential parts of the natural linguistic behaviour of communities thus remain undocumented, and a growing body of literature explores what language documentation, language maintenance, and language revitalization have to gain by including child language and child-directed language. This paper adds a methodological perspective to the discussion, arguing that child language and child-directed language constitute data types that can inform our understanding of the adult language. For reasons of feasibility, the paper focuses on child-directed language only. Presenting data from two on-going language acquisition projects (Qaqet from Papua New Guinea and Dëne Sųłıné from Canada), we illustrate how this data type provides insights into the metalinguistic knowledge of adult speakers. After an introduction to child-directed language, three case studies on the topics of variation sets, clarification processes, and discourse context are exemplified from both languages and related to our understanding of the adult language. Focusing on the potential of this data type, this paper argues in favour of extending our documentation efforts to events involving children.National Foreign Language Resource Cente

Child language documentation: The sketch acquisition project

This paper reports on an on-going project designed to collect comparable corpus data on child language and child-directed language in under-researched languages. Despite a long history of cross-linguistic research, there is a severe empirical bias within language acquisition research: Data is available for less than 2% of the world's languages, heavily skewed towards the larger and better-described languages. As a result, theories of language development tend to be grounded in a non-representative sample, and we know little about the acquisition of typologically-diverse languages from different families, regions, or sociocultural contexts. It is very likely that the reasons are to be found in the forbidding methodological challenges of constructing child language corpora under fieldwork conditions with their strict requirements on participant selection, sampling intervals, and amounts of data. There is thus an urgent need for proposals that facilitate and encourage language acquisition research across a wide variety of languages. Adopting a language documentation perspective, we illustrate an approach that combines the construction of manageable corpora of natural interaction with and between children with a sketch description of the corpus data – resulting in a set of comparable corpora and comparable sketches that form the basis for cross-linguistic comparisons

Correlations in spiking neuronal networks with distance dependent connections

Can the topology of a recurrent spiking network be inferred from observed activity dynamics? Which statistical parameters of network connectivity can be extracted from firing rates, correlations and related measurable quantities? To approach these questions, we analyze distance dependent correlations of the activity in small-world networks of neurons with current-based synapses derived from a simple ring topology. We find that in particular the distribution of correlation coefficients of subthreshold activity can tell apart random networks from networks with distance dependent connectivity. Such distributions can be estimated by sampling from random pairs. We also demonstrate the crucial role of the weight distribution, most notably the compliance with Dales principle, for the activity dynamics in recurrent networks of different types

Public access to research data in language documentation: Challenges and possible strategies

The Open Access Movement promotes free and unfettered access to research publications and, increasingly, to the primary data which underly those publications. As the field of documentary linguistics seeks to record and preserve culturally and linguistically relevant materials, the question of how openly accessible these materials should be becomes increasingly important. This paper aims to guide researchers and other stakeholders in finding an appropriate balance between accessibility and confidentiality of data, addressing community questions and legal, institutional, and intellectual issues that pose challenges to accessible dat

Principles and Practicalities of Corpus Design in Language Retrieval: Issues in the Digitization of the Beynon Corpus of Early Twentieth-Century Sm’algyax Materials

This paper describes a pilot project to develop a machine-readable corpus of early twentieth-century Sm’algyax texts from a large collection of handwritten manuscripts collected by the Tsimshian ethnographer and chief William Beynon. The project seeks to ensure that the materials produced are maximally accessible to the Tsimshian community. It relates established principles for corpus design to practical issues in language retrieval, recognizing that the corpus will likely function as an intermediate stage between the original manuscripts and any language materials developed by the community. The paper is addressed primarily to linguists working on language retrieval projects but may also be of use to communities who are working with linguists, as it provides insight into the concerns and preoccupations that linguists bring to such tasks.National Foreign Language Resource Cente