Explaining Cross-Language Asymmetries in Prosodic Processing: The Cue-Driven Window Length Hypothesis.

Area of Science:

• Psycholinguistics
• Phonetics
• Cross-linguistic research

Background:

• English speakers use suprasegmental cues for lexical stress less consistently than Spanish speakers.
• This asymmetry is hypothesized to stem from a trade-off between vowel reduction and suprasegmental cue usage in lexical access.

Purpose of the Study:

• To investigate if this "cue trade-off" also affects intonation processing.
• To compare how English and Spanish speakers process intonation, focusing on the use of suprasegmental cues.

Main Methods:

• Three cross-language experiments comparing English and Spanish speakers.
• Participants predicted hypo-articulated utterances in focal sentences and reporting speech.

Main Results:

• Evidence supporting the hypothesis that English speakers use fewer suprasegmental cues in intonation processing than Spanish speakers.
• Identified cross-language processing asymmetries at both lexical and utterance levels.
• Demonstrated interaction between low-level acoustic information (vowel reduction, duration) and higher-level intonation expectations.

Conclusions:

• The "Cue-Driven Window Length" model accounts for observed cross-language processing asymmetries.
• Speech perception involves active adjustment to feedback and context, challenging passive, bottom-up models.