abstract: A core operation in speech production is the preparation of words from a semantic base. The theory of lexical access reviewed in this article covers a sequence of processing stages beginning with the speaker's focusing on a target concept and ending with the initiation of articulation. The initial stages of preparation are concerned with lexical selection, which is zooming in on the appropriate lexical item in the mental lexicon. The following stages concern form encoding, i.e., retrieving a word's morphemic phonological codes, syllabifying the word, and accessing the corresponding articulatory gestures. The theory is based on chronometric measurements of spoken word production, obtained, for instance, in picture-naming tasks. The theory is largely computationally implemented. It provides a handle on the analysis of multiword utterance production as well as a guide to the analysis and design of neuroimaging studies of spoken utterance production. author: Levelt, Willem J. M. author_list: - affiliation: - name: Max Planck Institute for Psycholinguistics, P.O. Box 310, 6500 AH, Nijmegen, The Netherlands family: Levelt given: Willem J. M. citations: - author: Wundt W unstructured: W Wundt Die Sprache (Engelmann, Leipzig, Germany, 1900). volume-title: Die Sprache year: '1900' - author: Meringer R unstructured: R Meringer, K Mayer Versprechen und Verlesen (Goschen, Stuttgart, 1896). volume-title: Versprechen und Verlesen year: '1896' - doi: 10.1016/S1364-6613(99)01319-4 - author: Levelt W J M doi: 10.7551/mitpress/6393.001.0001 unstructured: 'W J M Levelt Speaking: From Intention to Articulation (MIT Press, Cambridge, MA, 1989).' volume-title: 'Speaking: From Intention to Articulation' year: '1989' - author: Miller G A unstructured: G A Miller The Science of Words (Scientific American, New York, 1991). volume-title: The Science of Words year: '1991' - doi: 10.1016/0010-0277(92)90041-F - doi: 10.1016/S0010-0277(97)00027-9 - doi: 10.1016/S0010-0277(97)00010-3 - author: Halle M unstructured: M Halle Linguistic Theory and Psychological Reality, eds M Halle, J Bresnan, G A Miller (MIT Press, Cambridge, MA, 1978). volume-title: Linguistic Theory and Psychological Reality year: '1978' - author: Levelt W J M first-page: '1' journal-title: Behav Brain Sci unstructured: W J M Levelt, A Roelofs, A S Meyer Behav Brain Sci 22, 1–38 (1999). volume: '22' year: '1999' - doi: 10.1023/A:1023245931630 - author: Levelt W J M unstructured: 'W J M Levelt Language, Brain, and Cognitive Development: Essays in Honor of Jacques Mehler, ed E Dupoux (MIT Press, Cambridge, MA, 2001).' volume-title: 'Language, Brain, and Cognitive Development: Essays in Honor of Jacques Mehler' year: '2001' - doi: 10.1111/j.1467-9280.1997.tb00444.x - doi: 10.1016/0010-0277(95)00663-J - doi: 10.4159/harvard.9780674421288 - author: Levelt W J M unstructured: 'W J M Levelt Speech, Place, and Action: Studies in Deixis and Related Topics, eds R J Jarvella, W Klein (Wiley, New York, 1982).' volume-title: 'Speech, Place, and Action: Studies in Deixis and Related Topics' year: '1982' - unstructured: 'Levinson S. C. Space in Language and Cognition: Explorations in Cognitive Diversity (Cambridge Univ. Press Cambridge U.K.) in press.' - author: Levelt W J M unstructured: W J M Levelt Language and Space, eds P Bloom, M A Peterson, L Nadel (MIT Press, Cambridge, MA, 1996). volume-title: Language and Space year: '1996' - doi: 10.1016/0010-0277(84)90024-6 - author: Luce R D unstructured: R D Luce Individual Choice Behavior (Wiley, London, 1959). volume-title: Individual Choice Behavior year: '1959' - doi: 10.1037/0096-1523.10.5.640 - doi: 10.1016/0749-596X(90)90011-N - author: Kempen G unstructured: G Kempen The Syntax–Semantics Interface. Linguistic Structures and Processes, eds H Härtl, S Olsen, H Tappe (De Gruyter, Berlin, 2001). volume-title: The Syntax–Semantics Interface. Linguistic Structures and Processes year: '2001' - doi: 10.1037/0278-7393.19.4.841 - doi: 10.1007/s004260050026 - doi: 10.1037/0278-7393.26.6.1368 - doi: 10.1080/016909699386275 - unstructured: Vigliocco G. Lauer M. Damian M. F. & Levelt W. J. M. J. Exp. Psychol. Learn. Mem. Cognit. in press. - doi: 10.1016/S0010-0277(01)00135-4 - doi: 10.1016/0001-6918(69)90055-9 - doi: 10.1037/0033-295X.98.4.615 - doi: 10.1037/0278-7393.24.3.539 - doi: 10.1037/0278-7393.24.5.1256 - doi: 10.1037/0278-7393.20.4.824 - unstructured: Roelofs A. Quart. J. Exp. Psychol. in press. - doi: 10.1037/0278-7393.17.6.1146 - author: Baumann M unstructured: M Baumann The Production of Syllables in Connected Speech (MPI, Nijmegen, The Netherlands, 1995). volume-title: The Production of Syllables in Connected Speech year: '1995' - doi: 10.1037/0278-7393.26.2.512 - doi: 10.1006/jmla.1996.0044 - doi: 10.1016/0749-596X(90)90050-A - doi: 10.1016/0749-596X(91)90011-8 - doi: 10.1080/016909699386338 - unstructured: Janssen D. P. Roelofs A. & Levelt W. J. M. Lang. Cogn. Processes in press. - unstructured: Chen J.-Y. Chen T.-M. & Dell G. J. Mem. Lang. in press. - author: Rizzolatti G unstructured: G Rizzolatti, M Gentilucci Neurobiology of Motor Cortex, eds P Rakic, W Singer (Wiley, New York, 1988). volume-title: Neurobiology of Motor Cortex year: '1988' - doi: 10.1016/0010-0277(92)90038-J - doi: 10.1016/0010-0277(94)90030-2 - unstructured: Costa A. & Caramazza A. J. Mem. Lang. in press. - doi: 10.1006/jmla.1996.0026 - doi: 10.1080/095414400750050178 - doi: 10.1080/713752301 - doi: 10.1006/jmla.1997.2517 - doi: 10.1016/S0010-0277(98)00009-2 - doi: 10.3758/BF03212987 - doi: 10.3758/BF03196402 - doi: 10.1162/089892998562960 - doi: 10.1037/0278-7393.23.4.787 - doi: 10.1126/science.280.5363.572 - author: Schmitt B M first-page: '473' journal-title: J Mem Lang unstructured: B M Schmitt, T F Münte, M Kutas J Mem Lang 37, 473–484 (2000). volume: '37' year: '2000' - doi: 10.1162/08989290152001925 - unstructured: Maess B. Friederici A. D. Damian M. Meyer A. S. & Levelt W. J. M. (2001) J. Cogn. Neurosci. in press. - author: Indefrey P unstructured: P Indefrey, W J M Levelt The New Cognitive Sciences, ed M Gazzaniga (MIT Press, Cambridge, MA, 2000). volume-title: The New Cognitive Sciences year: '2000' - author: Levelt W J M unstructured: W J M Levelt, P Indefrey Image, Language, Brain, eds A Marantz, Y Miyashita, W O'Neil (MIT Press, Cambridge, MA, 2000). volume-title: Image, Language, Brain year: '2000' doc_url: https://pnas.org/doi/pdf/10.1073/pnas.231459498 doi: 10.1073/pnas.231459498 files: - levelt2001.pdf number: 23 journal: Proceedings of the National Academy of Sciences language: en month: 11 pages: 13464--13471 papis_id: b03ca4f8028051344e4c1bd3489e094b publisher: National Academy of Sciences ref: Spoken_word_pro_Levelt_2001 time-added: 2026-08-19-13:33:26 title: 'Spoken word production: A theory of lexical access' type: article url: https://doi.org/10.1073/pnas.231459498 volume: '98' year: 2001