|Programa general, fitxa d'activitat|
||Dijous 8 de setembre de 2016 14:30 a 15:00
Network Science contributions to the analysis of typical/atypical language developmentExposa: LLUÍS BARCELÓ-COBLIJN, Universitat de les Illes Balears, Ajudant Doctor
Exposa: Marga Palmer Riera, Universitat de les Illes Balears
Autors: Lluís Barceló-Coblijn, Aritz Irurtzun, Marga Palmer & Antoni Gomila
Network Science contributions to the analysis of typical/atypical language development
Fairly recent, a technique for linguistic analysis based on complexity theory and linguistics has been developed (Corominas-Murtra et al. 2009), which extracts a pattern of complexity from a conversation sample: after the syntactic analysis of all sentences a complex network is plotted, where nodes represent lexical items, and edges represent syntactic relationships between nodes. Theese authroes observed that both children (English, typical) developed following the same pattern. Further, Barceló-Coblijn et al. (2012) analyzed 3 corpora of 3 three new languages (Dutch, German and Spanish) yielding similar results.
The most interesting aspect is that typical children undergo three differentiated stages. After a progressive development, the transition to next stage is always abrupt, showing a combination of linear and non-linear growth. Each stage is represented by a type of network: tree-like network, Scale-free network and Small-world network.
We have replicated this technique and new data from 5 typical corpora are presented (Catalan, French, Italian and Basque), showing that this technique is not sensitive to linguistic typology. Moreover, data of 32 linguistic samples of children with Down syndrome (DS; 20 Dutch + 10 English speakers) , SLI (20 speakers), Hearing Impairment (20 speakers) and children affected by Williams syndrome are also included. Atypical data clearly show a deviation from the typical developmental pattern.
Linguistic analyses by means of complex networks offer global information about the speaker that is hidden to human eyes. Finally, this technique is very useful to follow the linguistic development of children, due to its capability to differentiate typical from atypical developmental patterns.
Barceló-Coblijn L., Corominas-Murtra B., & Gomila A. (2012) Syntactic trees and small-world networks: syntactic development as a dynamical process. Adaptive Behavior, 20, 427–442.
Corominas-Murtra B., Valverde, S., & Solé, R.V. (2009) The Ontogeny Of Scale-Free Syntax Networks: Phase Transitions In Early Language Acquisition. Advances in Complex Systems, 12, 371–392.Nous enfocaments metodològics per a l'estudi del llenguatge
Lloc: Aula A-15