Invited Lecture: Ullman
Dr. Michael Ullman, Professor of Neuroscience, Linguistics and Psychology at Georgetown University, gave the following lecture:
"Do we learn language in the same brain systems that rats use to learn a maze? Evidence from a multidisciplinary investigation of first and second language"
Date: Wednesday, November 13, 2013
Time: 3:45-5:15 p.m.
Location: 112 Chambers
Increasing evidence suggests that language learning and use crucially depend on two long-term memory systems in the brain, declarative memory and procedural memory. Because the behavioral, anatomical, physiological, cellular and genetic correlates of these two systems are quite well-studied in animals and humans, they lead to specific predictions about language that would not likely be made in the more limited study of language alone. This approach is thus very powerful in being able to generate a wide range of new predictions for language -- including for first and second language, individual differences, and a range of language disorders.
I will first give some background on the two memory systems, and then discuss the manner in which language is predicted to depend on them. One of the key concepts is that to some extent the two systems can subserve the same functions (e.g., for navigation, grammar, etc.), and thus they play at least partly reduandant roles for these functions. This has a variety of important consequences for normal and disordered language. I will then present multidisiplinary evidence (behavioral, neurological, neuroimaging, electrophysiological) that basic aspects of language do indeed depend on the two memory systems, though in different ways across different unimpaired and impaired populations. I will discuss normal first and second language, individual and group differences (e.g, sex differences), and our work on disorders, focusing on developmental disorders (e.g., Specific Language Impairment, dyslexia, autism, and Tourette syndrome.)
Dr. Ullman is Professor in the Department of Neuroscience, with secondary appointments in the Departments of Neurology, Linguistics and Psychology, at Georgetown University. He is Director of the Brain and Language Laboratory and the Georgetown EEG/ERP Lab. His research examines the brain bases of first and second language, how language and memory are affected in various disorders (e.g., autism, Specific Language Impairment, aphasia, Alzheimer's, Parkinson's, and Huntington's diseases), and how such factors as sex, handedness, and genetic variability affect the brain bases of language and memory.
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