Variable Rate Working Memories for Phonetic Categorization and Invariant Speech Perception

dc.contributor.author	Boardman, Ian	en_US
dc.contributor.author	Cohen, Michael	en_US
dc.contributor.author	Grossberg, Stephen	en_US
dc.date.accessioned	2011-11-14T18:19:17Z
dc.date.available	2011-11-14T18:19:17Z
dc.date.issued	1993-01	en_US
dc.identifier.uri	http://hdl.handle.net/2144/1985
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