Anna Marczyk

University of Toulouse · LLCE

Le présent travail s’inscrit dans la ligne des études qui se proposent de déterminer la nature sous-jacente phonétique et/ou phonologique des erreurs segmentales chez des sujets aphasiques. Nous avons analysé acoustiquement les productions correctes et les substitutions portant sur le trait de voisement (les assourdissements) chez trois sujets apha...

A great number of studies in aphasiology have reported devoicing of voiced consonants in patients who have particular difficulty with the phonetic processing of speech. Recently, other studies have made attempts to account for these difficulties not only in negative terms of ‘deficit’ but also, positively, as a palliative strategy which patients wo...

Since the very outset, the science of aphasiology has concerned itself with the sound structure anomalies of patients with aphasia, attempting to classify the different types of aphasia according to whether the speech errors can be interpreted as the result of central or peripheral deficits. The purpose of this chapter is to contribute to this deba...

Le domaine des recherches en Phonétique Clinique vise à améliorer nos connaissances sur les pathologies de la parole en confrontant les méthodes et les recherches en phonétique avec les données cliniques et les diagnostics des cliniciens. En France, la Phonétique Clinique s’est développée depuis une trentaine d’années dans une communauté importante...

This article reports on vowel clarity metrics based on spectrotemporal modulations of speech signals. Motivated by previous findings on the relevance of modulation-based metrics for speech intelligibility assessment and pathology classification, the current study used factor analysis to identify regions within a bi-dimensional modulation space, the...

Objectives: Loss of intelligibility is a major complaint for patients with speech disorders, as it affects their everyday communication and thus contributes to a decrease in their quality of life. Several tests are available to measure intelligibility, but these tests do not take into account the evaluators' ability to restore distorted sequences....

Assessing the intelligibility of speech-disordered individuals generally involves asking them to read aloud texts such as word lists, a procedure that can be time-consuming if the materials are lengthy. This paper seeks to optimize such elicitation materials by identifying an optimal trade-off between the quantity of material needed for assessment...

L'intelligibilité de la parole est portée par des modulations d'amplitude évoluant en fonction du temps et de la fréquence (Rosen, 1992) où les fluctuations à cadences rapides (8-16 Hz) et lentes (1-2 Hz et 4-8 Hz) véhiculent respectivement l'information segmentale et suprasegmentale (Elliott & Theunissen, 2009). L'analyse du signal modulé a été ré...

This paper investigates random vs. phonetically motivated reduction of linguistic material used in an intelligibility task in speech disordered populations and the subsequent impact on the discrimination classifier quantified by the area under the receiver operating characteristics curve (AUC of ROC). The comparison of obtained accuracy indexes sho...

Numerosos estudios han destacado las alteraciones de la prosodia afectiva y pragmática en los trastornos del espectro autista (TEA), pero son escasas las investigaciones que hayan estudiado las alteraciones de las formas más rudimentarias de la prosodia, como el acento. El objetivo de este estudio exploratorio es ofrecer un análisis preliminar de l...

We report experimental evidence on covariation between vowel onset f0 and voice onset time (VOT) in voiced and voiceless stops produced by Spanish speakers with apraxia of speech and conduction aphasia as compared to a healthy control group. These two disorders are argued to affect different components of the same dorsal stream involved in mapping...

This paper is concerned with the phonetic realization of the voicing contrast by two Spanish speakers with surgery-related apraxia of speech and two matched control speakers. Specifically, it examines whether speakers with AOS, widely reported to have a deficit in laryngeal control, use nasal leak as a compensatory mechanism aimed at facilitating t...

This paper is concerned with the phonetic realization of the voicing contrast by two Spanish speakers with surgery-related apraxia of speech and two matched control speakers. Specifically, it examines whether speakers with AOS, widely reported to have a deficit in laryngeal control, use nasal leak as a compensatory mechanism aimed at facilitating t...

RESUME Cette étude exploratoire examine le débit d'air nasal dans la production de consonnes plosives chez une locutrice apraxique hispanophone, dans le but de déterminer si elle utilise la nasalité comme mécanisme compensatoire pour faciliter l'initiation du voisement. Les résultats mettent en évidence que les plosives initiales identifiées comme...

This paper is concerned with the phonetic realization of the voicing contrast by two Spanish speakers with surgery-related apraxia of speech and two matched control speakers. Specifically, it examines whether speakers with AOS, widely reported to have a deficit in laryngeal control, use nasal leak as a compensatory mechanism aimed at facilitating t...

The goal of this study was to investigate the phonetic realisation of the voicing feature in two tumour resection-related Spanish speakers with apraxia of speech. Temporal parameters related to the phonological contrast of voicing in Spanish have been analysed for intervocalic voiced and voiceless obstruents embedded in isolated words and nonwords,...

This paper analyses the factors that predict substitution errors produced by four Broca’s and four conduction aphasic subjects, all native speakers of Spanish, in reading and repetition tasks. Errors were elicited using a list of words where type of consonant, lexical stress and phonetic context were controlled for and where variables related to fr...

Présentation de la soutenance de thèse de doctorat.

The present study is concerned with deficits that affect the phonetic and phonological component of speech in aphasia. Its main objective is to account for the underlying determinism of errors observed in the speech output of Spanish-speaking aphasic patients, according to the clinical type of aphasia. The central hypothesis of our study predicts a...

In this presentation we share some results of our work in phonetics and and its application to the study of aphasic speech errors and other disorders.

Traitement par unités lexicales vs. par mots-forme en vue d'applications en technologies de la parole : analyse prosodique de suites libres et de suites figées en français et en polonais 1 Abstract The aim of this paper is to describe the prosodic differences between a set of Polish and French phrasemes vs. free expressions that are comparable in t...