Language production, psycholinguistics, cross-linguistic analysis, and cognition in general are my primary interests. Current work ranges from basic processes of word production, especially the roles of sublexical units, to sentence level planning and the conceptual-lexical interface. Recent collaborations include studies of the productive phonology of Mandarin Chinese and of Spanish, Chinese speakers' conception of time, and dynamic processes in concept-to-word mappings.
Chen, J.-Y., O’Séaghdha, P. G. & Chen, T.-M. (2016). The primacy of abstract syllables in Chinese word production. Journal of Experimental Psychology: Learning, Memory and Cognition, 42, 825-836. https://dx.doi.org/10.1037/a0039911
O'Séaghdha, P. G. (2015). Across the great divide: Proximate units at the lexical-phonological interface. Japanese Psychological Research. doi: 10.1111/jpr.12074
O'Seaghdha, P.G. & Frazer, A.K. (2014). The exception does not rule: Attention constrains form preparation in word production. Journal of Experimental Psychology: Learning, Memory and Cognition, 40, 797-810.doi: 10.1037/a0035576
Frazer, A. K., O’Séaghdha, P. G., Munoz-Avila, H. & Roessler, N. (2014). Competitor activation and semantic interference: Evidence from combined phonological and semantic similarity. In P. Bello, M. Guarini, M. McShane, & B. Scassellati (Eds.), Proceedings of the 36th Annual Conference of the Cognitive Science Society (pp. 1108 - 1113). Austin, TX: Cognitive Science Society.
Chen, J. Y., Su, J. J., & O'Seaghdha, P. G. (2013). Enduring moments: The extended present in Chinese speakers’ orientation to event time. Journal of Pragmatics, 45, 90-103.
Chen, J.-Y., & O'Seaghdha, P. G. (2013). Do Mandarin and English speakers think about time differently? Review of existing evidence and some new data. Journal of Chinese Linguistics, 41, 338-358.
O'Seaghdha, P. G., Chen, J.-Y. & Chen, T.-M. (2010). Proximate units in word production: Phonological encoding begins with syllables in Mandarin Chinese but with segments in English. Cognition, 115, 282-302. http://dx.doi.org/10.1016/j.cognition.2010.01.001
O'Seaghdha, P. G. & Chen, J.-Y. (2009). Toward a language-general account of word production: The proximate units principle. In N.A. Taatgen & H. van Rijn (Eds.,), Proceedings of the 31st Annual Conference of the Cognitive Society (pp. 68-73). Austin, TX: Cognitive Science Society. Link
Pérez E., Santiago J., Palma A., & O'Seaghdha P. G. (2007) Perceptual bias in speech error data collection: Insights from Spanish speech errors. Journal of Psycholinguistic Research, 36, 207-235.
O'Seaghdha, P. G. & Marin, J. W. (2000). Phonological competition and cooperation in form-related priming: Sequential and nonsequential processes in word production. Journal of Experimental Psychology: Human Perception and Performance, 26, 57-73
Stallings, L., MacDonald, M. C., & O'Seaghdha, P. G. (1998). Phrasal ordering constraints in sentence production: Phrase length and verb disposition in Heavy-NP shift. Journal of Memory and Language, 39, 392-417.
O'Seaghdha, P. G. (1997). Conjoint and dissociable effects of syntactic and semantic context. Journal of Experimental Psychology: Learning, Memory, and Cognition, 23, 807-828.
O'Seaghdha, P. G. & Marin J. W. (1997). Mediated semantic-phonological priming: Calling distant relatives. Journal of Memory and Language, 36, 226-252.
Dell, G. S. & O'Seaghdha, P. G. (1992). Stages of lexical access in language production. Cognition, 42, 287-314. Reprinted (1993) in W. J. M. Levelt (Ed.), Lexical access in speech production (pp. 287-314). Cambridge, MA:Blackwell.