Ph.D. University of Toronto, 2008. Department of Speech-Language Pathology. Dissertation:Morphosyntactic Acquisition in monolingual 3-, 4-, and 5-year-old Spanish-speaking
M.S. Universidad del Valle, Colombia, 2003. Specialist Program in Bilingual Education.
B.S. Universidad del Valle, Colombia, 2000. Speech Language Pathology.
- Typical and atypical language development.
- Grammatical markers of specific language impairment.
- Individual differences in second language acquisition.
- Language assessment in monolingual and bilingual children.
I have been an assistant professor at SUNY Fredonia since August of 2009. My primary
interests are Spanish language development, language assessment and disorders in Spanish-speaking
monolingual and bilingual children. I teach courses in language acquisition, language
disorders and language assessment for monolingual and bilingual children. Please visit
the Child Language Laboratory at SUNY Fredonia for more information about my current research projects. .
Ripoll, J.C., Aguado, G., & Castilla-Earls, A.P. (2013). Systematic review on the SVR model. Revista de Logopedia, Foniatria y Audiologia.
Pérez-Leroux, A.T., Pirvulescu, M., Roberge, Y. & Castilla-Earls, A.P. (2013). On the Development of Null Implicit Objects in L1. Canadian Journal of Linguistics, 443-464.
Castilla-Earls, A.P. & Eriks-Brophy, A. (2012). Developmental language measures in Spanish-speaking
children. Revista de Logopedia, Foniatria y Audiologia, e7-e19.
Perez-Leroux, A.T. & Castilla-Earls, A.P., Massam, D., & Bejar, S. (2012) Elmo’s sister’s ball: Nominal recursion as
a measure of language complexity. Language Acquisition: A Journal of Developmental Linguistics, 301-311.
Perez-Leroux, A.T., Bejar, S., Massam, D., & Castilla-Earls, A.P (2012). The Acquisition of NP Recursion in English-Speaking Children. BUCLD 36, 449-460.
Pérez-Leroux, A.T., Castilla-Earls, A.P. & Bruner, J. (2012). General and specific effects of lexicon in grammar: Determiner
and object pronoun omission in child Spanish. Journal of Speech, Language and Hearing Research, 313-327.
Castilla, A.P. & Perez-Leroux, A.T (2010). Omissions and Substitutions in Early Spanish Clitics.
Journal of Language Acquisition, 2-25.
Restrepo, M.A., Castilla, A.P. Schwanenflugel, P., Pritchett, S., Hamilton, C. & Arboleda, A. (2010) Sentence
length, complexity and growth in Spanish-speaking children attending English-only
and bilingual preschool programs. Language, Speech and Hearing Services in Schools, 3-13.
Castilla, A. P. (2009). Morphosyntactic Acquisition in monolingual 3-, 4-, and 5-year-old
Spanish-speaking children. In V. Marrero & I. Pinera (Eds.) Linguistics: The Challenge
of Clinical Application. Proceedings of the II International Conference on Clinical
Linguistics. Euphonia Ediciones: Madrid, Spain.
Castilla, A.P., Restrepo, M.A. & Perez-Leroux, A.T. (2009). Individual differences and language
interdependence in Spanish-English bilingual children. International Journal of Bilingualism, 1-16.
Castilla, A.P., Perez-Leroux, A.T. & Eriks-Brophy, A. (2008). Syntax and the lexicon in early
omission of Spanish clitics. BUCLD, 32, 72-83.
Castilla, A.P., Perez-Leroux, A.T & Eriks-Brophy, A. (2008). Omissions in early Spanish clitics.
In A. Gavarro, & J. Freitas (Eds.), Language acquisition and development: Proceedings of GALA 2007 (pp.112-122). Cambridge Scholars Publishing.
Restrepo M. A. & Castilla A. P. (2007) Language elicitation considerations in the study of language skills
of Latino children with language disorders. In J. G. Centeno, L. K. Obler & R. Anderson
(Eds.) Communication Disorders in Spanish Speakers: Theoretical, Research and Clinical