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DTSTART;TZID=Europe/Paris:20160226T100000
DTEND;TZID=Europe/Paris:20160226T120000
DTSTAMP:20260423T214954
CREATED:20190212T172554Z
LAST-MODIFIED:20190212T172556Z
UID:2267-1456480800-1456488000@www.ilcb.fr
SUMMARY:Dissociating Prediction and Attention Components in Language by Ruth de Diego-Balaguer
DESCRIPTION:Dissociating Prediction and Attention Components in Language by Ruth de Diego-Balaguer (ICREA Research Professor – Cognition and Brain Plasticity Unit\, Universitat de Barcelona)\nSpeech is composed of sequences of syllables\, words and phrases. These elements unfold in time in specific orders. Thus\, acquiring a language requires not only learning each of these representations but also their temporal organisation. The areas conforming the dorsal stream in language has been proposed to have a role in the processing of sequential information. In this talk I will present novel behavioural\, developmental and neuroimaging evidence indicating that the roles of the fronto-parietal and fronto temporal connectivity within this dorsal stream can be dissociated in language learning. In addition\, I will present data indicating that learning non-adjacent dependencies in language\, a core mechanism for the acquisition of syntactic rules\, involves both the ability to predict forthcoming elements implicitly and to endogenously orient attention based on the predictive cues learned. This type of learning implies the interface between the language and attention networks during the early stages of language acquisition.
URL:https://www.ilcb.fr/event/dissociating-prediction-and-attention-components-in-language-by-ruth-de-diego-balaguer/
LOCATION:Salle de conférences\, 5 avenue Pasteur\, Aix-en-Provence\, 13100\, France
CATEGORIES:Seminars
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DTSTART;TZID=Europe/Paris:20160226T110000
DTEND;TZID=Europe/Paris:20160226T130000
DTSTAMP:20260423T214954
CREATED:20190212T172809Z
LAST-MODIFIED:20190212T172812Z
UID:2269-1456484400-1456491600@www.ilcb.fr
SUMMARY:Perceptual adaptation and speech motor control: A new perspective on some well known mechanisms by Douglas Shiller
DESCRIPTION:Perceptual adaptation and speech motor control: A new perspective on some well known mechanisms by Douglas Shiller (Université de Montréal\, Faculté de médecine)\nAcoustic speech signals are notoriously variable within and between talkers. To aid in the linguistic decoding of such noisy signals\, it is well known that listeners employ a number of perceptual mechanisms to help reduce the impact of linguistically irrelevant acoustic variation. Rapid perceptual accommodation to differences in age and gender is achieved\, in part\, through vowel-extrinsic normalization\, whereby the immediately preceding speech signal provides a frame-of-reference within which talker-specific vowel category boundaries are determined (Ladefoged & Broadbent\, 1957). Listeners also draw upon higher-order linguistic information to facilitate phonetic processing of noisy or ambiguous speech acoustic signals\, as illustrated by the well-known lexical effect on perceptual category boundaries (Ganong\, 1980). \nSince their discovery many decades ago\, these adaptive perceptual mechanisms have been considered primarily as processes supporting the decoding of ambiguous speech signals originating from other talkers. Here\, I will describe two recent studies demonstrating that such adaptive processes can also alter the processing of self-generated speech acoustic signals (i.e.\, auditory feedback)\, and by extension\, the sensorimotor control of speech production. The results provide strong support for the idea that short-term auditory-perceptual plasticity rapidly transfers to the sensory processes guiding speech motor function. The findings will be discussed within the context of current models of speech production\, in particular those that highlight a role for auditory-feedback in the fine-tuning of predictive\, feed-forward control processes.
URL:https://www.ilcb.fr/event/perceptual-adaptation-and-speech-motor-control-a-new-perspective-on-some-well-known-mechanisms-by-douglas-shiller/
LOCATION:Salle de conférences\, 5 avenue Pasteur\, Aix-en-Provence\, 13100\, France
CATEGORIES:Seminars
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