Progress Report18
Research supported by:
Department of Health and Human Services
U.S. Public Health Service
National Institutes of Health -- Research Grant No.DC-00111-16
National Institutes of Health --Training Grant No.DC-00012-14

Table of Contents

I.Extended Manuscripts

1. Long-Term Memory in Speech Perception: Some New Findings on Talker Variability, Speaking Rate and Perceptual Learning
------------------ David B. Pisoni

2. Stimulus Variability and Spoken Word Recognition: Effects of Variability in Speaking Rate and Overall Amplitude
------------------ Mitchell S. Sommers, Lynne C. Nygaard, and David B. Pisoni

3. Some Contributions of Auditory Psychophysics to Theoretical Issues in Speech Perception
------------------ Mitchell S. Sommers and David B. Pisoni

4. Speech Perception: New Directions In Research and Theory
------------------ Lynne C. Nygaard and David B. Pisoni

5. Variability and Invariance in Speech Perception: A New Look at Some Old Problems in Perceptual Learning
------------------ David B. Pisoni and Scott E. Lively

6. Effects of Stimulus Variability on the Representation of Spoken Words in Memory
------------------ Lynne C. Nygaard, Mitchell S. Sommers and David B. Pisoni

7. Training Japanese Listeners to Identify English /r/ and /l/: III. Long-term Retention of New Phonetic Categories
------------------ Scott E. Lively, David B. Pisoni, Reiko A. Yamada, Yoh'ichi Tohkura and Tsuneo Yamada

II. Short Reports & Work-in-Progress

1. Speech Perception as a Talker-Contingent Process
------------------ Lynne C. Nygaard, Mitchell S. Sommers and David B. Pisoni

2. Training Listeners to Perceive Novel Phonetic Categories: How Do We Know What is Learned
------------------ John S. Logan, Scott E. Lively and David B. Pisoni

III. Instrumentation & Software

1. A New PC-based Real-time Experiment Control System
------------------Luis R. Hernandez, Thomas D. Carrell, James G. Reutter, and Robert H. Bernacki