Abstract

Magnetic resonance imaging has served as a valuable tool for studying primarily static postures in speech production. Now, recent improvements in imaging techniques, particularly in temporal resolution, are making it possible to examine the dynamics of vocal tract shaping during speech. Examples include Mady et al. (2001, 2002) (8 images/second, T1 fast gradient echo) and Demolin et al. (2000) (4–5 images/second, ultra fast turbo spin echo sequence). The present study uses a non 2D‐FFT acquisition strategy (spiral k‐space trajectory) on a GE Signa 1.5T CV/i scanner with a low‐flip angle spiral gradient echo originally developed for cardiac imaging [Kerr et al. (1997), Nayak et al. (2001)] with reconstruction rates of 8–10 images/second. The experimental stimuli included English sentences varying the syllable position of /n, r, l/ (spoken by 2 subjects) and Tamil sentences varying among five liquids …

Date

2003

Authors

Shrikanth Narayanan, Krishna Nayak, Dani Byrd, Sungbok Lee

Journal

The Journal of the Acoustical Society of America

Volume

113

Issue

4_Supplement

Pages

2258-2258

Publisher

Acoustical Society of America