Variable Rate Working Memories for Phonetic Categorization and Invariant Speech Perception


Show simple item record Boardman, Ian en_US Cohen, Michael en_US Grossberg, Stephen en_US 2011-11-14T18:19:17Z 2011-11-14T18:19:17Z 1993-01 en_US
dc.description.abstract Speech can be understood at widely varying production rates. A working memory is described for short-term storage of temporal lists of input items. The working memory is a cooperative-competitive neural network that automatically adjusts its integration rate, or gain, to generate a short-term memory code for a list that is independent of item presentation rate. Such an invariant working memory model is used to simulate data of Repp (1980) concerning the changes of phonetic category boundaries as a function of their presentation rate. Thus the variability of categorical boundaries can be traced to the temporal in variance of the working memory code. en_US
dc.description.sponsorship Air Force Office of Scientific Research (F49620-92-J-0225, 90-0128); Defense Advanced Research Projects Agency (ONR N00014-92-J-4015); Office of Naval Research (N00014-91-J-4100) en_US
dc.language.iso en_US en_US
dc.publisher Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems en_US
dc.relation.ispartofseries BU CAS/CNS Technical Reports;CAS/CNS-TR-1993-007 en_US
dc.rights Copyright 1993 Boston University. Permission to copy without fee all or part of this material is granted provided that: 1. The copies are not made or distributed for direct commercial advantage; 2. the report title, author, document number, and release date appear, and notice is given that copying is by permission of BOSTON UNIVERSITY TRUSTEES. To copy otherwise, or to republish, requires a fee and / or special permission. en_US
dc.title Variable Rate Working Memories for Phonetic Categorization and Invariant Speech Perception en_US
dc.type Technical Report en_US
dc.rights.holder Boston University Trustees en_US

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