Data for: Alignment of f0 peak in different pitch accent types affects perception of metrical stress

The paper related to this dataset investigates how stress perception in German is affected by different pitch accent types (with different f0 alignments). Experiment 1 showed more errors in stress identification when f0 peaks and stressed syllables were not aligned – despite phonological association of pitch accent and stressed syllable. Erroneous responses revealed a response bias towards the syllable with the f0 peak. In a visual-world eye-tracking study (Experiment 2), listeners fixated a stress competitor with initial stress more when the spoken target, which had penultimate stress, was realized with an early-peak accent (f0 peak preceding stressed syllable), compared to a condition with the f0 peak on the stressed syllable. Hence, high-pitched unstressed syllables are temporarily interpreted as stressed – a process directly affecting lexical activation. To investigate whether this stress competitor activation is guided by the frequent co-occurrence of high f0 and lexical stress, Experiment 3 increased the frequency of low-pitched stressed syllables in the immediate input. The effect of intonation on competitor fixations disappeared. The paper discusses these findings with respect to a frequency-based mechanism and their implications for the nature of f0 processing. On this platform, stimuli (wav-files) for all experiments are provided, along with datasets (raw data for stress judgements, Experiment 1, and eye-tracking experiments (Experiments 2 and 3)) and a R-Markdown file showing all steps in the statistical analysis (Exp. 1-3). Reference: Zahner, Kutscheid & Braun (in press). Alignment of f0 peak in different pitch accent types affects perception of metrical stress. Journal of Phonetics.本数据集关联的学术论文探究了德语词汇重音感知如何受不同调重音（pitch accent）类型及其各异的基频（f0）对齐方式影响。实验1结果显示，当基频峰值与重读音节未对齐时，重音识别错误率显著升高——尽管调重音与重读音节在音系层面存在固有关联。错误响应数据表明，被试存在显著的响应偏差，即倾向于将基频峰值所在的音节判定为重读音节。 在视觉世界眼动追踪（visual-world eye-tracking）研究（实验2）中，相较于基频峰值落在重读音节的对照条件，当目标语音采用早峰值调重音（基频峰值先于重读音节）且词重音落在倒数第二音节时，听者对带有初始重音的重音竞争词的注视时长显著更长。由此可见，高基频的非重读音节会被暂时识别为重读音节，这一过程直接作用于词汇激活（lexical activation）环节。 为探究此类重音竞争激活是否由高基频与词汇重音的高频共现所驱动，实验3在即时输入语境中提升了低基频重读音节的出现频率。此时，语调对竞争词注视的影响完全消失。论文基于频率机制（frequency-based mechanism）对上述发现展开讨论，并阐释了其对基频处理本质的理论启示。 本平台提供了所有实验的刺激材料（WAV格式音频文件），以及相关数据集（实验1的重音判断任务原始数据、实验2与实验3的眼动实验原始数据），同时附带一份R-Markdown文档，完整展示了实验1至3的全部统计分析流程。 参考文献：Zahner、Kutscheid与Braun（即将出版）。《不同调重音类型下基频峰值的对齐方式对节律重音（metrical stress）感知的影响》(Alignment of f0 peak in different pitch accent types affects perception of metrical stress)，《Journal of Phonetics》。