Sound-level errors collected by ear from continuous communicative speech have been interpreted as mis-selections of planning elements, which are then produced fluently without residue of the original target (Lashley 1957, Fromkin 1972, Garrett 1975, Shattuck-Hufnagel 1982). In contrast, articulatory measures of tongue twister errors reveal gestural intrusions: target and intrusion elements are co-produced, sometimes resulting in a gestural error which is imperceptible to listeners (Pouplier 2003, Goldstein et al. 2007; see also Mowrey and MacKay 1970). Is this apparent difference due to structure and processing differences between the two utterance types, i.e., sentences (e.g., The top cop saw a cop top) vs alternating repetitive word lists (e.g., top cop top cop top cop) generally produced with quasi-periodic timing? Or, do articulatory measures simply capture the nature of sound-level errors more accurately? We elicited errors using both types of stimuli in the same experimental session; perceptual and acoustic analyses show that sentences provoke more apparent whole-segment substitutions (e.g., /tap/ for /kap/), while alternating repetitive lists provoke more errors with two onset bursts (e.g., /tkap/), resembling gestural intrusions. This suggests that there may be more than one mechanism underlying spoken errors, and that different materials may engage these mechanisms to different degrees.
Meeting abstract. No PDF available.
A comparison of speech errors elicited by sentences and alternating repetitive tongue twisters
Stefanie Shattuck-Hufnagel, Cathy Bai, Mark Tiede, Argyro Katsikis, Marianne Pouplier, Louis Goldstein; A comparison of speech errors elicited by sentences and alternating repetitive tongue twisters. J. Acoust. Soc. Am. 1 November 2013; 134 (5_Supplement): 4166. https://doi.org/10.1121/1.4831271
Download citation file: