Prosodic patterning in distal speech context: Effects of list intonation and f0 downtrend on perception of proximal prosodic structure

نویسندگان

  • Tuuli H. Morrill
  • Laura Dilley
  • J. Devin McAuley
چکیده

Prosodic structure is often perceived as exhibiting regularities in the patterning of tone sequences or stressed syllables. Recently, prosodic regularities in the distal (non-local) context have been shown to influence the perceived prosodic constituency of syllables. Three experiments tested the nature of distal prosodic patterns influencing perceptions of prosodic structure, using eight-syllable items ending in ambiguous lexical structures (e.g., tie murder bee, timer derby). For distinct combinations of distal fundamental frequency (f0) and/or timing cues, two patterns were resynthesized on the initial five syllables of experimental items; these were predicted to favor prosodic grouping of final syllables such that listeners would hear a final disyllabic or monosyllabic word, respectively. Results showed distal prosodic patterning affected perceived prosodic constituency when (1) patterns consisted of regularity in timing cues, f0 cues, or both (Experiments 1–2); (2) items ended with either a low–high (Experiment 1) or a high–low (Experiment 2) tonal pattern; and (3) tonal patterns consisted of alternating low and high-pitched syllables with progressive f0 decrease, i.e., a ‘downtrend’ (Experiment 3). The results reveal that a variety of prosodic patterns in the distal context can influence perceived prosodic constituency and thus lexical processing, and provide a perceptually-motivated explanation for the organization of acoustic speech input into prosodic

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عنوان ژورنال:
  • J. Phonetics

دوره 46  شماره 

صفحات  -

تاریخ انتشار 2014