2 d - Translate

https://www.selleckchem.com/pr....oducts/nuciferine.ht
[This corrects the article DOI 10.1371/journal.pntd.0007733.].Pitch peaks tend to be higher at the beginning of longer than shorter sentences (e.g., 'A farmer is pulling donkeys' vs 'A farmer is pulling a donkey and goat', whereas pitch valleys at the ends of sentences are rather constant for a given speaker. These data seem to imply that speakers avoid dropping their voice pitch too low by planning the height of sentence-initial pitch peaks prior to speaking. However, the length effect on sentence-initial pitch peaks appears to var