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- W2034260008 abstract "To explore possible auditory bases of perceptual categorization, 62 naive listeners were asked to assign tones into one of four classes: “low (pitch)-short (duration),” “low-long,” “high-short,” and “high-long.” The stimuli were sets of 81 pure tones obtained by factorial combination of nine values of frequency with nine values of duration. In one condition, frequency ranged from 0.25 to 1.0 kHz in ≅ 100-Hz steps, and duration from 100 to 180 ms in 10-ms steps; in another condition the ranges were 0.536 to 1.0 kHz in 58-Hz steps and 100 to 356 ms in 32 ms steps, respectively. The tones were presented at a rate of 1/3 s and the SPL was 60 dB. A single stimulus, absolute judgement task was used and only the very initial performance was studied (first 10 rain). The 50% “low-high” pitch boundary was measured as a function of tonal duration, and the 50% “short-long” duration boundary measured as a function of tonal frequency. Listeners were able to consistently categorize the tones into the four classes from the first presentation of the set of tones. For both stimulus conditions, the pitch boundary was placed around the arithmetic mean of the frequency range (X̄ = 0.61 or 0.77 kHz) irrespective of tone duration. The duration boundary was generally placed below the arithmetic mean of the duration range X̄d for frequencies below X̄f, but above X̄d for frequencies higher than X̄f. That is, the higher the pitch the shorter the perceived duration. The results suggest that in auditory categorization with naive listeners, pitch can be judged independently of duration, but the duration judgment is not independent of pitch. [Supported by NRC Post-doctoral Fellowship to the author.]" @default.
- W2034260008 created "2016-06-24" @default.
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- W2034260008 date "1979-11-01" @default.
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- W2034260008 title "Perceptual dependency of pitch and duration in categorization of pure tones" @default.
- W2034260008 doi "https://doi.org/10.1121/1.2018025" @default.
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