Multiplex lexical networks reveal patterns in early word acquisition in children

Network models of language have provided a way of linking cognitive processes to language structure. However, current approaches focus only on one linguistic relationship at a time, missing the complex multi-relational nature of language. In this work, we overcome this limitation by modelling the mental lexicon of English-speaking toddlers as a multiplex lexical network, i.e. a multi-layered network where N = 529 words/nodes are connected according to four relationship: (i) free association, (ii) feature sharing, (iii) co-occurrence, and (iv) phonological similarity. We investigate the topology of the resulting multiplex and then proceed to evaluate single layers and the full multiplex structure on their ability to predict empirically observed age of acquisition data of English speaking toddlers. We find that the multiplex topology is an important proxy of the cognitive processes of acquisition, capable of capturing emergent lexicon structure. In fact, we show that the multiplex structure is fundamentally more powerful than individual layers in predicting the ordering with which words are acquired. Furthermore, multiplex analysis allows for a quantification of distinct phases of lexical acquisition in early learners: while initially all the multiplex layers contribute to word learning, after about month 23 free associations take the lead in driving word acquisition

Is the mind a network? Maps, vehicles, and skyhooks in cognitive network science

Cognitive researchers often carve cognition up into structures and processes. Cognitive processes operate on structures, like vehicles driving over a map. Language alongside semantic and episodic memory are proposed to have structure, as are perceptual systems. Over these structures, processes operate to construct memory and solve problems by retrieving and manipulating information. Network science offers an approach to representing cognitive structures and has made tremendous inroads into understanding the nature of cognitive structure and process. But is the mind a network? If so, what kind? In this article, we briefly review the main metaphors, assumptions, and pitfalls prevalent in cognitive network science (maps and vehicles; one network/process to rule them all), highlight the need for new metaphors that elaborate on the map-and-vehicle framework (wormholes, skyhooks, and generators), and present open questions in studying the mind as a network (the challenge of capturing network change, what should the edges of cognitive networks be made of, and aggregated vs. individual-based networks). One critical lesson of this exercise is that the richness of the mind as network approach makes it a powerful tool in its own right; it has helped to make our assumptions more visible, generating new and fascinating questions, and enriching the prospects for future research. A second lesson is that the mind as a network–though useful–is incomplete. The mind is not a network, but it may contain them

EUSN 2021 Book of Abstracts, Fifth European Conference on Social Networks

Book of abstract of the fifth European conference on Social Networks EUSN 202

Approaching the Complex, Cultural Other: Towards a Renewal of Christian Cultural Engagement in the Reformed Tradition

In the Reformed evangelical tradition, there are ongoing discussions concerning approaches to Christian cultural engagement. Broadly speaking, the tradition lacks an approach for an engagement that upholds the integrity of the tradition at the same time as taking cultural complexity seriously. In this thesis I suggest that a renewal of Christian cultural engagement is possible through an approach that brings together the Reformed theological movement known as neo-Calvinism and the field of cultural anthropology in dialogue. This approach will be formed through both an analysis of the cultural theology of Abraham Kuyper and its subsequent developments, and a survey of pertinent issues concerning the idea of “culture” and “the other” in cultural anthropology. From this dialogue, I identify three dynamic ideas for a renewed approach to Christian theological cultural engagement. First, because of cultural complexity, all cultural worlds are to be approached as simultaneously meaningful and indefinable. Second, because of this tension between meaningfulness and indefinability, theological cultural engagement requires the holding of multiple perspectives as it seeks both to contextualise and remain theologically faithful. Third, a culturally contextual and theologically faithful approach to cultural works yields a positive view of creation and a hope of cultural harvest that gives cultural activity meaning and purpose. This approach to Christian cultural engagement is both faithful to and a development of Kuyperian thought. It is distinct from other approaches in the Reformed tradition because it draws on influences from cultural anthropology. This thesis will demonstrate how such an approach to Christian cultural engagement is able to give meaning to the development of cultural worlds without stultifying them, how it is able to support the multiplex nature of human diversity while upholding human commonness, and how it is able to give hope, meaning, and equality to the works of diverse cultural communities

Borrowings, Derivational Morphology, and Perceived Productivity in English, 1300-1600.

This dissertation examines how borrowed derivational morphemes such as -age, -ity, -cion, and -ment became productive in the English language, particularly in the fourteenth through sixteenth centuries. It endeavors to expand our current understanding of morphological productivity as a historical phenomenon--to account for not only aggregate quantitative measures of the products of morphological processes, but also some of the linguistic mechanisms that made those processes more productive for language users. Judgments about the productivity of different suffixes in the late ME period cannot be made on counts of frequency alone, since the vast majority of uses were not neologisms or newly coined hybrid forms but rather borrowings from Latin and French. It is not immediately clear to the historical linguist if Middle English speakers perceived a derivative such as enformacion as an undecomposable word or as a morphologically complex word. By examining usage patterns of these derivatives in guild records, the Wycliffite Bible, end-rhymed poetry, medical texts, and personal correspondence, this project argues that several mechanisms helped contribute to the increased transparency and perceived productivity of these affixes. These mechanisms include the following: the use of rhetorical sequences of derivatives with the same base or derivatives ending in the same suffix; the frequent use of derivatives as end rhymes in poetry; the lexical variety of derivatives ending in the same suffix; and the more frequent use of certain bases compared to their derivatives. All of these textual and linguistic features increased readers' and listeners' ability to analyze borrowed derivatives as suffixed words. Ultimately, the dissertation finds that several borrowed affixes were seen as potentially productive units of language in the late ME period, though some were seen as more productive than others in different discourses and contexts. It also emphasizes the value of register studies for understanding the specific motivations for the use of borrowed derivatives in different discourses, as well as the morphological consequences of salient usage patterns within different registers.Ph.D.English Language & LiteratureUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/64624/1/palmercc_1.pd

Language In My Mouth: Linguistic Variation in the Nmbo Speech Community of Southern New Guinea

This thesis is a mixed-methods investigation into the question of the sociolinguistics of linguistic diversity in Papua New Guinea. Social and cultural traits of New Guinean speech communities have been hypothesised as conducive to language differentiation and diversification (Laycock 1991, Thurston 1987, 1992, Foley 2000, Ross 2001), however there have been few empirical studies to support these hypotheses. In this thesis I investigate linguistic micro-variations within a contemporary New Guinean speech community, with the goal of identifying socio-cultural pressures that affect language variation and change. The community under investigation is the Nmbo speech community located in the Morehead area of Southern New Guinea. It is a highly multilingual community in the middle of the Nambu branch dialect chain, and consists primarily of the three villages Govav, Bevdvn, and Arovwe. The ideologically licensed speakers of Nmbo are the Kerake tribe people, but due to the practice of marriage exogamy, a large portion of non-Kerake people speak Nmbo as an additional language learnt from their parents or spouse. This thesis embraces the complexities of the multilingual ecology by including data from Kerake women who have married out of the Nmbo villages into the neighbouring Nen language village of Bimadbn. The empirical investigations bring data from three directions. First are the qualitative descriptions based on my own ethnographic fieldwork supported by prior ethnographic descriptions. The picture to emerge is of an egalitarian multilingual speech community. The qualitative descriptions also provide basic facts about demographics and social structures of the community. Second is the linguistic description of the Nmbo language. Nmbo is an under-described language without substantial prior description, and this thesis contains a sketch grammar covering the basics aspects of Nmbo grammar. Finally there are three quantitative studies of variation. The vowel sociophonetic study and the word initial [h]-drop study are classic Labovian variationist studies that investigate patterns of variation across a sample of speakers. The former is based of elicited word list data, and the latter on naturalistic speech data. The third quantitative study takes a grammaticalisation approach to an emergent topic marker in a topicalising construction from a relative clause construction. This is the first thesis ever produced providing qualitative, descriptive, and quantitative data from a New Guinean speech community within a language ecology of vital indigenous multilingualism. The contributions of the thesis are two fold. Firstly, this thesis brings grammatical and sociolinguistic descriptions from an under-studied language. It is a socio-grammar (Nagy 2009) that considers language ecology, sociolinguistics, and grammatical description. Secondly, this thesis contributes empirical data on the sociolinguistics of small-scale speech communities. The classic sociolinguistic variable of gender is not found to be particularly significant in the variables studied, despite the community being highly gendered in other social domains. Village, however, shows some significance. As far as the three variables are concerned, Nmbo speakers show little community-internal variation and paint a picture of a tight-knit society of intimates (Trudgill 2011). The conclusion to the question of the sociolinguistics of diversification is that while there is some evidence of sociolinguistic differentiation within the Nmbo speech community, the most important social groups to orient against are the other sister language groups in the Morehead area. The nascent variation within the Nmbo speech community, combined with the ethnographic evidence of a cluster of dense and multiplex social networks, suggest that should the social need to differentiate between other Kerake arise, linguistic differentiation may occur rapidly