@article{SaddyBeimGrabenSchlesewsky1999, author = {Saddy, Douglas and Beim Graben, Peter and Schlesewsky, Matthias}, title = {Cortical Dynamics of Language Processes}, year = {1999}, language = {en} } @article{FrischSaddyFriederici2000, author = {Frisch, Stefan and Saddy, Douglas and Friederici, A. D.}, title = {Cutting a long story (too) short}, year = {2000}, language = {en} } @article{SaddySchlesewskyBeimGraben1999, author = {Saddy, Douglas and Schlesewsky, Matthias and Beim Graben, Peter}, title = {Cylinder Entropies and Case resolution}, year = {1999}, language = {en} } @article{DrenhausBeimGrabenSaddyetal.2006, author = {Drenhaus, Heiner and Beim Graben, Peter and Saddy, Douglas and Frisch, Stefan}, title = {Diagnosis and repair of negative polarity constructions in the light of symbolic resonance analysis}, issn = {0093-934X}, doi = {10.1016/j.bandl.2005.05.001}, year = {2006}, abstract = {in a post hoc analysis, we investigate differences in event-related potentials of two studies (Drenhaus et al., 2004, to appear; Saddy et al., 2004) by using the symbolic resonance analysis (Beim Graben \& Kurths, 2003). The studies under discussion, examined the failure to license a negative polarity item (NPI) in German: Saddy et al. (2004a) reported an N400 component when the NPI was not accurately licensed by negation; Drenhaus et al. (2004, to appear) considered additionally the influence of constituency of the licensor in NPI constructions. A biphasic N400-P600 response was found for the two induced violations (the lack of licensor and the inaccessibility of negation in a relative clause). The symbolic resonance analysis (SRA) revealed an effect in the P600 time window for the data in Saddy et al., which was not found by using the averaging technique. The SRA of the ERPs in Drenhaus et al., showed that the P600 components are distinguishable concerning the amplitude and latency. It was smaller and earlier in the condition where the licensor is inaccessible, compared to the condition without negation in the string. Our findings suggest that the failure in licensing NPIs is not exclusively related to semantic integration costs (N400). The elicited P600 components reflect differences in syntactic processing. Our results confirm and replicate the effects of the traditional voltage average analysis and show that the SRA is a useful tool to reveal and pull apart ERP differences which are not evident using the traditional voltage average analysis.}, language = {en} } @article{BeimGrabenJurishSaddyetal.2004, author = {Beim Graben, Peter and Jurish, B. and Saddy, Douglas and Frisch, Stefan}, title = {Language processing by dynamical systems}, issn = {0218-1274}, year = {2004}, abstract = {We describe a part of the stimulus sentences of a German language processing ERP experiment using a context- free grammar and represent different processing preferences by its unambiguous partitions. The processing is modeled by deterministic pushdown automata. Using a theorem proven by Moore, we map these automata onto discrete time dynamical systems acting at the unit square, where the processing preferences are represented by a control parameter. The actual states of the automata are rectangles lying in the unit square that can be interpreted as cylinder sets in the context of symbolic dynamics theory. We show that applying a wrong processing preference to a certain input string leads to an unwanted invariant set in the parsers dynamics. Then, syntactic reanalysis and repair can be modeled by a switching of the control parameter - in analogy to phase transitions observed in brain dynamics. We argue that ERP components are indicators of these bifurcations and propose an ERP-like measure of the parsing model}, language = {en} } @article{SaddyBeimGrabenSchlesewsky1999, author = {Saddy, Douglas and Beim Graben, Peter and Schlesewsky, Matthias}, title = {Measuring entropy during language processing}, year = {1999}, language = {en} } @article{SaddyUriagereka2004, author = {Saddy, Douglas and Uriagereka, J.}, title = {Measuring language}, issn = {0218-1274}, year = {2004}, abstract = {The study of language, its processing and its bearing on human cortical processes are all extensive domains of investigation in their own right. In this overview tutorial we limit ourselves to a sample of core illustrative issues. Our central aim is to demonstrate how complexity within the language faculty arises from two a priori distinct sources: the computational complexity inherent in the grammar of the language system itself and the procedural complexity resulting from marshalling processing resources in order to produce or interpret utterances that correspond to the grammar. Distinguishing between these two sources of complexity is a current goal in investigations of the human language faculty. The combination of quantitative approaches with newer qualitative approaches to the analysis of electro-cortical behaviour associated with carefully controlled language paradigms represents a new approach to clarifying this central issue}, language = {en} } @article{Saddy1999, author = {Saddy, Douglas}, title = {Measuring the dynamics of language processes}, year = {1999}, language = {en} } @article{BrehmJurishSaddy2005, author = {Brehm-Jurish, Eva Ute and Saddy, Douglas}, title = {On cohesion and coherence in text processing : two ERP studies}, issn = {0898-929X}, year = {2005}, language = {en} } @article{DrenhausBeimGrabenSaddyetal.2005, author = {Drenhaus, Heiner and Beim Graben, Peter and Saddy, Douglas and Frisch, Stefan}, title = {On the processing of negative polarity constructions revealed by the symbolic resonance analysis}, issn = {0898-929X}, year = {2005}, language = {en} }