The role of fundamental frequency and temporal envelope in processing sentences with temporary syntactic ambiguities

Victoria Sharpe, Daniel Fogerty, Dirk Bart Den Ouden

Research output: Contribution to journalConference articlepeer-review

Abstract

While natural speech prosody facilitates sentence processing, unnatural or misleading prosody decreases speed and accuracy in resolving syntactic ambiguities. This study investigated how, and to what extent, fundamental frequency (F0) and the temporal envelope (E) contribute to processing garden-path sentences that provide misleading grammatical interpretations. Signal processing methods degraded either F0 or E in 120 garden-path sentences (e.g. While the man hunted the deer ran into the woods). Twenty-two participants listened to natural and acoustically modified garden-paths. For each sentence, participants answered a comprehension question and repeated the sentence. Results demonstrated that degrading E consistently affected sentence comprehension, with a different effect observed for degrading F0. The nature of this difference varied with the plausibility of the postverbal noun. For example, in the E-modified condition, plausible sentences resulted in productions that reconstructed the original prosody of the sentence less accurately than those resulting from natural sentences. These findings suggest that E plays a greater role, compared to F0, in processing garden-path ambiguities. However, how listeners use prosody may vary based on context. This suggests that prosodic information can interact with cognitive processing load.

Original languageEnglish (US)
Article number5aSC26
JournalProceedings of Meetings on Acoustics
Volume21
Issue number1
DOIs
StatePublished - Nov 1 2014
Externally publishedYes
Event167th Meeting of the Acoustical Society of America - Providence, United States
Duration: May 5 2014May 9 2014

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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