Tid: Onsdagen 28 november kl. 15.00
Plats: C307, Södra huset, Frescati, Stockholms universitet.

Postseminarium äger rum direkt efter seminariet i institutionens pentry.


We present a recent development of our modeling paradigm combining task dynamical implementation of ariculatory phonology with optimization approach akin to hypo- / hyper-articulation theory. Temporal details of intergestural sequencing and dynamical parameters of articulatory gestures are seen as emergent from trade-offs between competing efficiency and effectiveness requirements imposed by articulatory, auditory and communication constraints.

Three types of phenomena, traditionally investigated under different domains of speech science, are shown to be, in principle, accounted for by our model. First, phonetic patterns - temporal details of intergestural timing - reflect articulatory properties of embodied gestures involved in an utterance production. Second, phonological contrast between singletons and geminates emerges in form of two discretely distinct patterns faithfully capturing the articulatory characteristics of these two types of gestures. Finally, a simplified version of our model is shown to be fully compatible with task dynamic coupled-oscillator accounts used for modeling various prosodic phenomena such as stress or final lengthening. Quasi-oscilatory characteristics of speech postulated by these accounts emerge in our model as an optimal solution satisfying hierarchically organized set of production and perception efficiency constraints.

About Juraj Šimko
Juraj Šimko is currently a Researcher (Alexander von Humboldt Foundation Fellow) at CITEC (Cognitive Interaction Technology Center of Excellence) and Faculty of Linguistics and Literary Studies Bielefeld University, Germany. He has a PhD in Cognitive Science from University College Dublin, Ireland (2009). The title of his thesis was "The Embodied Modelling of Gestural Sequencing in Speech" and it was supervised by Dr. Fred Cummins. He won the ISCA Award for Best Student Paper at Interspeech 2009, Brighton, UK. He has a MSc in Mathematics, from Comenius University, Bratislava, Slovakia (1993). Outside academia, he has been employed as a Language Specialist at Microsoft, EPDC, Dublin, Ireland. He has been teaching a postgraduate course on Dynamical Modelling of Speech in Bielefeld; as well as undergraduate courses on Formal Logic at Trinity College Dublin, Department of Philosophy and on Logic: Informal and Formal at University College Dublin, School of Philosophy.

Juraj asked to come to give a seminar in Phonetics at Stockholm University to discuss H&H theory and EMA with us.


Lisa Gustavsson