Event Abstract Back to Event Ventral and Dorsal Pathways for Prosodic Intentions Daniela Sammler1, 2*, Marie-Hélène Grosbras2, Patricia E. G. Bestelmeyer3 and Pascal Belin2, 4 1 Max Planck Institute for Human Cognitive and Brain Sciences, Germany 2 University of Glasgow, Institute of Neuroscience and Psychology, UK 3 Bangor University , School of Psychology, UK 4 University of Montréal and McGill University, Canada Prosody - on top of its linguistic and emotional roles - serves an interpersonal function in speech: to convey the speaker's communicative intentions. Research on the neural bases of prosodic intentions requires a fusion of the fields of neurolinguistics and social neurosciences. The present data outline (i) a right-hemispheric dual-stream account of prosodic comprehension, in analogy to prevailing dual-stream models of language comprehension in the left hemisphere; and (ii) motor simulation in the dorsal stream as a conceptual interface between prosodic comprehension and the decoding of the speaker's stimulus-linked intentions. In two separate functional/diffusion magnetic resonance imaging (MRI) and transcranial magnetic stimulation (TMS) experiments, participants categorized the prosodic intention ("naming" vs "asking"; experimental task) or the word-initial consonant (/bear/ or /pear/; control task) of single word utterances that varied along a pitch contour (falling to rising) or phoneme continuum (/b/ to /p/). The prosody task (vs control) activated (i) right posterior and anterior superior temporal sulcus (p/aSTS) connected via the middle longitudinal fasciculus (ventral pathway), and (ii) right pSTS and laryngeal premotor cortex (PMC) connected via the arcuate fasciculus (dorsal pathway). (iii) Functional relevance of the dorsal pathway was demonstrated by reduced performance in the prosody (but not control) task after TMS-induced inhibition of right PMC. These data draw a dual-stream picture of prosodic comprehension built on complementary mechanisms: A ventral WHAT pathway to map vocal pitch patterns to meaning by evaluating auditory features, and a dorsal HOW pathway to recognize a speaker's vocal action by covertly mapping the perceived pitch contour to laryngeal gestures. Following motor simulation accounts of social cognition, this latter mechanism may ground the understanding of the speaker's (low-level) intention conveyed by speech prosody. Keywords: Larynx, Intention, Motor Simulation, functional MRI, diffusion MRI, pragmatics, TMS, Prosody, dorsal pathway, ventral pathway, speech act Conference: XII International Conference on Cognitive Neuroscience (ICON-XII), Brisbane, Queensland, Australia, 27 Jul - 31 Jul, 2014. Presentation Type: Oral Presentation Topic: Language Citation: Sammler D, Grosbras M, Bestelmeyer P and Belin P (2015). Ventral and Dorsal Pathways for Prosodic Intentions. Conference Abstract: XII International Conference on Cognitive Neuroscience (ICON-XII). doi: 10.3389/conf.fnhum.2015.217.00058 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: 19 Feb 2015; Published Online: 24 Apr 2015. * Correspondence: Dr. Daniela Sammler, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, daniela.sammler@ae.mpg.de 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 Daniela Sammler Marie-Hélène Grosbras Patricia E. G. Bestelmeyer Pascal Belin Google Daniela Sammler Marie-Hélène Grosbras Patricia E. G. Bestelmeyer Pascal Belin Google Scholar Daniela Sammler Marie-Hélène Grosbras Patricia E. G. Bestelmeyer Pascal Belin PubMed Daniela Sammler Marie-Hélène Grosbras Patricia E. G. Bestelmeyer Pascal Belin 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.
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