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Université Toulouse II-Le Mirail SCPAM (Publication), Université Toulouse II-Le Mirail (Production), Bruno BASTARD (Réalisation), Marina Laganaro (Intervention)
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DOI : 10.60527/kmma-2866
Citer cette ressource :
Marina Laganaro. UT2J. (2012, 22 juin). Phonological and phonetic encoding and impairment / Marina Laganaro , in Perspectives neuropsycholinguistiques sur l'aphasie. [Vidéo]. Canal-U. https://doi.org/10.60527/kmma-2866. (Consultée le 25 avril 2025)
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Phonological and phonetic encoding and impairment / Marina Laganaro

Réalisation : 22 juin 2012 - Mise en ligne : 7 mars 2013
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Phonological and phonetic encoding and impairment / Marina Laganaro, in colloque international "Perspectives neuropsycholinguistiques sur l'aphasie - NeuroPsychoLinguistic Perspectives on Aphasia", organisé par l'Unité de Recherche Interdisciplinaire Octogone de l'Université Toulouse II-Le Mirail (France). Toulouse, 21-23 juin 2012.

Current psycholinguistic models of speech production suggest independent organization of phonological and phonetic encoding processes (Levelt, Roelofs, & Meyer, 1999). In these symbolic/abstractionist models an abstract linguistic phonological form is planned (phonological encoding) before a more specified motor plan is encoded (phonetic encoding). In the neurolinguistic tradition, phonological errors produced by aphasic patients are thought to originate during the level of abstract linguistic encoding processes; by contrast, impairment at the level of phonetic encoding is thought to give rise to the pattern of errors observed in apraxia of speech (Blumstein, 1990; Code, 1998; Ziegler, 2008, 2009). These positions contrast with recent research pointing to an interaction between phonological and phonetic encoding processes and to the difficulty of clearly distinguish phonological from phonetic impairment. 

Here we will first review the empirical psycholinguistic, neurolinguistic and neuroimaging arguments favoring separate phonological and phonetic processes and time‐course. In particular, we will focus on the interpretation of the origin of phonological paraphasias (Kohn and Smith, 1994; Laganaro & Zimmermann, 2010; Schwartz et al., 2004) and on the time‐course of disruption during single word production (Laganaro et al., 2009; 2011). Then, we will discuss the difficulty of teasing out phonological and phonetic disorders in clinical practice. We will present empirical arguments in favour of an interaction between phonological and phonetic encoding processes (Baese‐Berk & Goldrick, 2009, McMillan, Corley & Lickley, 2009) and to overlapping patterns of impairments (Perret et al., to appear; Laganaro, subm.). Finally, we will discuss the consequences of interactive encoding processes on the definition of patterns of impairment.

 

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Documentation

Baese‐Berk, M., & Goldrick, M. (2009). Mechanisms of interaction in speech production. Language and Cognitive Processes, 24, 527‐554.

Blumstein, S. (1990). Phonological deficits in aphasia: Theoretical perspectives. In A. Caramazza (Ed.), Cognitive neuropsychology and neurolinguistics, Hillsdalle: Lawrence Erlbaum, pp. 33‐53. 

Code, C. (1998). Major review: Models, theories and heuristics in apraxia of speech. Clinical Linguistics and Phonetics, 12, 47–65.

Kohn, S.E. & Smith, K.L. (1994). Distinction between two phonological output deficits. Applied Psycholinguistics, 15, 75‐95.

Laganaro, M. (2012). Patterns of impairments in J. Speech, AoS and mechanisms of interaction between phonological and phonetic encoding, Language, Hearing Research, 55, 1535-43.

Laganaro, M., Morand, S. Michel, CM, Spinelli, L. & Schnider, A. (2011). ERP correlates of word production before and after stroke in an aphasic patient. Journal of Cognitive Neuroscience, 23, 374‐381.

Laganaro, M., Morand, S. & Schnider, A. (2009). Time course of evoked‐potential changes in different forms of anomia in aphasia. Journal of Cognitive Neuroscience, 21(8), 1499‐ 1510.

Laganaro, M. & Zimmermann, C. (2010). Origin of phoneme substitution and phoneme movement errors in aphasia. Language and Cognitive Processes, 25, 1‐37.

Levelt, W.J. M. Roelofs, A. & Meyer, A.S. (1999). A theory of lexical access in speech production. Behavioral and Brain Sciences, 22, 1‐75.

McMillan, C.T., Corley, M. & Lickley, R.J. (2009). Articulatory evidence for feedback and competition in speech production. Language and Cognitive Processes, 24, 44‐66.

Perret, Cyril, Schneider, L., Dayer, G. & Laganaro, Marina, (2012), Convergences and divergences between Neurolinguistic and Psycholinguistic data in the study of phonological and phonetic encoding: a parallel investigation of syllable frequency effects in brain‐damaged and healthy speakers. Language and Cognitive Processes, iFirst, 1-20. (En ligne : Perret-et-al.2013.

Schwartz, M.E., Wilshire, C.E., Gagnon, D.A. & Polansky, M. (2004). Origin of non‐word phonological errors in aphasic picture naming. Cognitive Neuropsychology, 21, 159‐186.

Ziegler, W. (2008). Apraxia of speech. In: Goldenberg, G. and Miller, B. L., Neuropsychology and Behavioral Neurology, Edinburgh: Elsevier, ed. 3, p. 269‐286..

Ziegler W. (2009). Modelling the architecture of phonetic plans: Evidence from apraxia of speech Language and Cognitive Processes, 24(5): 631‐661, 2009.


> Voir aussi la bibliographie générale à télécharger dans l'onglet "Documents" de la séquence vidéo d'ouverture du colloque.

Website dédié au colloque "Perspectives neuropsycholinguistiques sur l'aphasie"
Programme du colloque "Perspectives neuropsycholinguistiques sur l'aphasie" (Toulouse 2012)
Actes du colloque "Aphasia. Perspectives neuropsycholinguistiques sur l'aphasie" (Toulouse 2012)

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