PLEX5 - A production lexicon of child speech for European Portuguese 

PLEX5 - Um léxico infantil para o Português Europeu

 (Portuguese CDI supporting documents)

Funding:

DEPE Project (PTDC/CLE-LIN/108722/2008)
Laboratório de Fonética & Lisbon Baby Lab
Centro de Linguística da Universidade de Lisboa

PLEX5 was based on the materials from two publicly available databases of child speech: Correia, S. & T. Costa (2010). EP_Mono. Base de Dados de Aquisição do Português Europeu como Língua Materna (dados monolingues). Laboratório de Psicolinguística, CLUL/Projecto PhonBank (http://www.clul.ul.pt/pt/investigacao/159-acquisition-in-european-portuguese-resources-and-results); LumaLiDa Resources for Child Language (http://labfon.letras.ulisboa.pt/LumaLiDa.htm - Frota, S., M. Vigário & R. Jordão (2008). LumaLiDaOn (version 1). Lisboa: Laboratório de Fonética da FLUL; Frota, S., M. Vigário, N. Matos, M. Cruz & R. Jordão. (2012). LumaLiDaAudy – Audio Child Speech Database with phonetic transcription and prosodic labeling. Lisboa: Lab.Fonética, CLUL/FLUL).

This child speech resource was built as part of the supporting documents for the development of the McArthur Bates Communicative Inventories (CDI) for European Portuguese – Short forms for Level I (8 to 18 months) and Level 2 (16 to 30 months). The main goal behind PLEX5 was to provide information on the developmental course of lexical acquisition. Lexical frequency lists were obtained with the FreP tool (Martins, F., M. Vigário & S. Frota. 2011. FreP - Frequency in Portuguese. Version 3.0.).

PLEX5 contains the following information, as database fields:
Orthographic word list, together with frequency of occurrence
Morphosyntactic category
Mean age of emergence
Number of children that produced the word
Information on which children produced the word
Lemma list, together with frequency of occurrence
Lemma mean age of emergence
Number of children that produced the lemma 

PLEX5 thus provides both group and individual lexical development data, assembled in a single database.

For more information, please read About PLEX5 and/or contact labfon AT letras.ulisboa.pt. To use PLEX5, contact labfon AT letras.ulisboa.pt.

PLEX5 is a publicly available resource for scientific, educational and clinical purposes. See User agreement.

© Frota, S., S. Correia, C. Severino, M. Cruz, M. Vigário & S. Cortês, 2012

PLEX5 - A production lexicon of child speech for European Portuguese / Um léxico infantil para o Português Europeu. Lisboa: Laboratório de Fonética CLUL/FLUL. ISBN 978-989-95713-6-5. ISLRN 124-998-098-334-1.