Pattern processing of stop consonants: Part II

Abstract

The roles of F1, F2, and vowel environment in stop consonant pattern processing were investigated using interaural transfer and selective adaptation. Previous results indicate that different patterns may exist for processing of stops, depending upon whether the stop occurs in a front or back vowel environment [L. Garrison, J. Acoust. Soc. Am. Suppl. 1 83, S70 (1988)]. Such pattern processing may reflect differences in the placement of F2 relative to F1. This experiment systematically manipulated the relationships between formants as well as vowel environment for CV syllables. These manipulations resulted in six stimuli that were used as adaptors on a [ba]-[da] test series. One adaptor shared its vowel percept ([ba]) and three other adaptors shared vowel category (back) with the test series. Finally, two adaptors were from a front vowel category. The results will be discussed in relation to how formant relationships and vowel environment affect pattern processing of stop consonants. [Work supported by NINCDS.]