Articulatory events are imitated under rapid shadowing

Area of Science:

• Linguistics
• Speech Science
• Cognitive Science

Background:

• Speech perception and production are complex processes.
• Rapid shadowing involves imitating speech in real-time.
• The role of articulatory gestures versus acoustic patterns in imitation is debated.

Purpose of the Study:

• To test if rapid shadowers imitate articulatory gestures, not just acoustic speech signals.
• To investigate if imitation can overcome practiced motor routines and phonological conditioning.
• To quantify the extent of imitation in rapid shadowing.

Main Methods:

• Two experiments were conducted using acoustic analysis of speech.
• Participants performed rapid shadowing of American English /l/ allophones.
• Articulatory evidence was examined to assess imitation fidelity.

Main Results:

• Participants reproduced allophonic differences in /l/ types, though effects were initially small.
• Exaggerated allophonic differences led to larger, more consistent imitation effects.
• Individual differences in imitation were observed, with some participants showing enhanced gestural imitation.

Conclusions:

• Rapid shadowers can imitate articulatory gestures underlying speech sounds.
• Imitation extent is generally small, even without explicit instructions.
• Findings have implications for understanding speech perception and production theories.