Loading Events

« All Events

  • This event has passed.

Analyzing, Cognitive, and Neural Modeling of Language-Related Brain Potentials by Peter Beim Graben

12/15/2015

Analyzing, Cognitive, and Neural Modeling of Language-Related Brain Potentials by Peter Beim Graben (Bernstein Center for Computational Neuroscience Berlin, Humboldt-Universität zu Berlin)

How is the human language faculty neurally implemented in the brain? What are the neural correlates of linguistic computations? To which extent are neuromorphic cognitive architectures feasible and could they eventually lead to new diagnosis and treatment methods in clinical linguistics (such as linguistic prosthetics)? These questions interfacing neurolinguistics with computational linguistics and computational neuroscience are addressed by the emergent discipline of computational neurolinguistics. In my presentation I will give an overview about my own research in computational neurolinguistics in the framework of language-related brain potentials (ERPs). By means of a paradigmatic ERP experiment for the processing and resolution of local ambiguities in German [1], I first introduce a novel method to identifying ERP components such as the P600 as ""recurrence domains"" in neuronal dynamics [2]. In a second step, I use a neuro-computational approach, called ""nonlinear dynamical automaton"" NDA [1] in order to construct a context-free ""limited repair parser"" [3] for processing the linguistic stimuli of the study. Finally, I demonstrate how the time-discrete evolution of the NDA can be embedded into continuous time using winner-less competition in neural population models [4]. This leads to a representation of the automaton's configurations as recurrence domains in the neural network that can be correlated with experimentally measured ERPs through subsequent statistical modeling [5,6]

Details

Date:
12/15/2015
Event Category:

Venue

Salle de conférences
5 avenue Pasteur
Aix-en-Provence, 13100 France
+ Google Map