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- W3205400972 endingPage "2816" @default.
- W3205400972 startingPage "2806" @default.
- W3205400972 abstract "When spectra differ between earlier (context) and later (target) sounds, listeners perceive larger spectral changes than are physically present. When context sounds (e.g., a sentence) possess relatively higher frequencies, the target sound (e.g., a vowel sound) is perceived as possessing relatively lower frequencies, and vice versa. These spectral contrast effects (SCEs) are pervasive in auditory perception, but studies traditionally employed contexts with high spectrotemporal variability that made it difficult to understand exactly when context spectral properties biased perception. Here, contexts were speech-shaped noise divided into four consecutive 500-ms epochs. Contexts were filtered to amplify low-F1 (100-400 Hz) or high-F1 (550-850 Hz) frequencies to encourage target perception of /ɛ/ (bet) or /ɪ/ (bit), respectively, via SCEs. Spectral peaks in the context ranged from its initial epoch(s) to its entire duration (onset paradigm), ranged from its final epoch(s) to its entire duration (offset paradigm), or were present for only one epoch (single paradigm). SCE magnitudes increased as spectral-peak durations increased and/or occurred later in the context (closer to the target). Contrary to predictions, brief early spectral peaks still biased subsequent target categorization. Results are compared to related experiments using speech contexts, and physiological and/or psychoacoustic idiosyncrasies of the noise contexts are considered." @default.
- W3205400972 created "2021-10-25" @default.
- W3205400972 creator A5033810059 @default.
- W3205400972 date "2021-10-01" @default.
- W3205400972 modified "2023-10-06" @default.
- W3205400972 title "Parameterizing spectral contrast effects in vowel categorization using noise contexts" @default.
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- W3205400972 doi "https://doi.org/10.1121/10.0006657" @default.
- W3205400972 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34717452" @default.
- W3205400972 hasPublicationYear "2021" @default.
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