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• W2907588194 abstract "Event Abstract Back to Event Dorsal and ventral streams in language production: Evidence from a cohort of aphasic patients Enrico Ripamonti1*, Mirella Frustaci2, Giuseppina Zonca3, Silvia Aggujaro4, Franco Molteni4 and Claudio Luzzatti5, 6 1 IRCCS Fondazione don Carlo Gnocchi, Italy 2 ASST Rhodense, Passirana di Rho, Italy 3 Istituti Clinici Scientifici Maugeri, IRCCS Montescano, Italy 4 Villa Beretta Rehabilitation Unit, Valduce Hospital, Costamasnaga, Italy 5 Università di Milano-Bicocca, Department of Psychology, Italy 6 Milan Centre of Neuroscience, Italy Phonological and articulatory programming impairments may co-occur in aphasic patients and previous research does not offer a clear-cut picture of their anatomical counterparts. Hickok and Poeppel (2004, 2007) put forward a seminal model of speech processes. The ventral stream (mostly bilateral) would be involved in speech recognition and phonological-lexical processing whereas the dorsal stream (largely lateralized to the left hemisphere) would map phonological representations onto articulatory motor patterns. In this study we analyzed the neural foundation of the phonological and articulatory output processes by considering repetition errors on single words and scores based on spontaneous speech at the Italian version of the Aachen Aphasia Test (participants: n= 78). Through a subtraction design and VLSM procedure we aimed at discriminating whether repetition errors due to either a main phonological or articulatory impairment are underpinned by a different neuroanatomical substrate. We found that deficit of repetition of single words is associated with lesions in a network of peri-sylvian areas including the insula and the external capsule, the frontal and the central operculum, and the pars opercularis of the inferior frontal gyrus. Repetition errors mainly due to articulatory impairment are correlated with lesions in a number of areas in the left dorsal stream, such as the pars opercularis of the inferior frontal gyrus, the insula and the external capsule, and the premotor cortex. By contrast, repetition errors due to phonological impairment are underpinned by lesions in the left ventral route, i.e., the posterior portion of the superior and the middle temporal gyrui. Figure 1 References Dronkers, N., & Ogar, J. (2004). Brain areas involved in speech production. Brain, 127(7), 1461-1462. Hickok, G., & Poeppel, D. (2004). Dorsal and ventral streams: a framework for understanding aspects of the functional anatomy of language. Cognition, 92(1), 67-99. Hickok, G., & Poeppel, D. (2007). The cortical organization of speech processing. Nature Reviews Neuroscience, 8(5), 393-402. Keywords: Speech apraxia, phonological impairment, Neuroimaging, articulatory processing, phonological processing Conference: Academy of Aphasia 55th Annual Meeting , Baltimore, United States, 5 Nov - 7 Nov, 2017. Presentation Type: poster presentation Topic: Consider for student award Citation: Ripamonti E, Frustaci M, Zonca G, Aggujaro S, Molteni F and Luzzatti C (2019). Dorsal and ventral streams in language production: Evidence from a cohort of aphasic patients. Conference Abstract: Academy of Aphasia 55th Annual Meeting . doi: 10.3389/conf.fnhum.2017.223.00065 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 24 Apr 2017; Published Online: 25 Jan 2019. * Correspondence: Dr. Enrico Ripamonti, IRCCS Fondazione don Carlo Gnocchi, Milan, Italy, enrico.ripamonti@unimib.it Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Enrico Ripamonti Mirella Frustaci Giuseppina Zonca Silvia Aggujaro Franco Molteni Claudio Luzzatti Google Enrico Ripamonti Mirella Frustaci Giuseppina Zonca Silvia Aggujaro Franco Molteni Claudio Luzzatti Google Scholar Enrico Ripamonti Mirella Frustaci Giuseppina Zonca Silvia Aggujaro Franco Molteni Claudio Luzzatti PubMed Enrico Ripamonti Mirella Frustaci Giuseppina Zonca Silvia Aggujaro Franco Molteni Claudio Luzzatti Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page." @default.
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• W2907588194 title "Dorsal and ventral streams in language production: Evidence from a cohort of aphasic patients" @default.
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