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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 8 of 8 1 Predicting language treatment response in bilingual aphasia using neural network-based patient models Grasemann, Uli; Peñaloza, Claudia; Dekhtyar, Maria... In: Sci Rep (2021) BASE Show details 2 BiLex: A computational approach to the effects of age of acquisition and language exposure on bilingual lexical access Peñaloza, Claudia; Grasemann, Uli; Dekhtyar, Maria. - 2019 BASE Show details 3 A computational account of bilingual aphasia rehabilitation* KIRAN, SWATHI; GRASEMANN, ULI; SANDBERG, CHALEECE... In: Bilingualism. - Cambridge : Univ. Press 16 (2013) 2, 325-342 OLC Linguistik Show details 4 A Computational Account of Bilingual Aphasia Rehabilitation Kiran, Swathi; Grasemann, Uli; Sandberg, Chaleece. - 2012 BASE Show details 5 Simulating Bilingual Aphasia Rehabilitation: Evidence from a computational model Kiran, Swathi; Grasemann, Uli; Sandberg, Chaleece. - 2011 BASE Show details 6 Rehabilitation and cross-language transfer in bilingual aphasia: towards a computational model Grasemann, Uli; Sandberg, Chaleece; Kiran, Swathi. - : BioMed Central, 2010 BASE Show details 7 Rehabilitation and cross-language transfer in bilingual aphasia: towards a computational model Grasemann, Uli; Sandberg, Chaleece; Kiran, Swathi; Miikkulainen, Risto. - : BMC Neuroscience, 2010 Abstract: Uli Grasemann and Risto Miikkukainen are with the Department of Computer Science, The University of Texas at Austin, Austin, TX 78712, USA -- Chaleece Sandberg and Swathi Kiran are with the Department of Speech, Language and Hearing Sciences, Boston University, Boston, MA 02215, USA ; Bilingual aphasia, defined as a loss of one or both languages in bilingual individuals that results from left hemisphere damage, is of increasing interest worldwide because more than half of the world’s population is bilingual. Despite the importance of this topic in an increasingly bilingual world, disparities in diagnosis and treatment of bilingual aphasia continue to exist. Current research on this topic lacks specific recommendations on which languages should be trained in a bilingual aphasic individual and to what extent cross-language transfer occurs subsequent to rehabilitation. Factors contributing to the paucity of research in this area relate to the multitude of possible language combinations in a bilingual individual, the relative competency of the two languages of the bilingual individual, and the effect of focal brain damage on bilingual language representation. It is, however, unfeasible to examine these issues clinically without undertaking a large scale longitudinal study in this population. As a potential solution to this problem, we are currently developing a computational model that will make a systematic examination of cross-language transfer subsequent to rehabilitation possible. The model is an extended version of DISLEX, a simulation of lexical access in humans based on self-organizing maps. For the present work, the model was extended to simulate a bilingual language system in which language representations can vary by age of acquisition and relative proficiency. The model can be lesioned systematically in different ways to simulate the damage leading to bilingual aphasia. Subsequent training using only one of the model’s two languages will then be performed to simulate treatment in aphasic individuals, and will make it possible to examine how age of acquisition, level of pre-morbid language proficiency, and post-morbid language performance influence the nature and degree of cross-language transfer. Here we report on the progress of the project so far. An outline of the model is given, including its implementation as well as its theoretical underpinnings in light of recent empirical evidence. The methods and input data used to train the model and to simulate treatment and clinical tests are described. First findings are presented that demonstrate that the model is able to match the available data on individual patients before the onset of aphasia. Starting with such models of individual patients, possible effects of lesions to the model and their ability to simulate post-morbid language performance are then discussed. Finally, we discuss how the model could in the future complement clinical research in determining the best approach to treating aphasia in bilingual patients, possibly in a way that is tailored to individual patients. ; Computer Sciences ; uli@cs.utexas.edu Keyword: bilingual aphasia; cross-language transfer; DISLEX; focal brain damage URL: https://doi.org/10.1186/1471-2202-11-S1-P98 http://hdl.handle.net/2152/27820 BASE Hide details 8 A Subsymbolic Model of Language Pathology in Schizophrenia Grasemann, Uli; Miikulainen, Risto; Hoffman, Ralph In: Grasemann, Uli; Miikulainen, Risto; & Hoffman, Ralph. (2007). A Subsymbolic Model of Language Pathology in Schizophrenia. Proceedings of the Cognitive Science Society, 29(29). Retrieved from: http://www.escholarship.org/uc/item/9r6540cv (2007) BASE Show details

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