Implications for pitch mechanisms of perceptual learning of fundamental frequency discrimination: Effects of spectral region and phase

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概要

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• Perceptual learning was used to examine mechanisms of pitch perception. Thresholds (F0DLs) were measured for discrimination of the fundamental frequency (F0) of complex tones with a nominal F0 of 100 Hz and cosine-phase or random-phase harmonics. Tones were bandpass filtered and presented in threshold equalizing noise. A group trained using stimuli with the filter centered on LOW harmonics (1–5) showed a large training effect, with transfer to stimuli with MID harmonics (11–15) or MID-HIGH harmonics (14–18), but no transfer to stimuli with HIGH harmonics (28–32). A group trained with MID or MID-HIGH stimuli showed a large training effect, with transfer to the LOW stimuli and no transfer to the HIGH stimuli. A group trained with HIGH stimuli showed no training effect for any stimuli. The results suggest that similar mechanisms were used for F0 discrimination of the LOW, MID, and MID-HIGH stimuli, and that a different mechanism was used for the HIGH stimuli. It is proposed that the LOW, MID and MID-HIGH stimuli were discriminated using temporal fine structure (TFS) information, in the former case TFS information about individual resolved harmonics, and in the latter two cases TFS information about the periodicity of the waveform evoked by interfering harmonics.

• 一般社団法人 日本音響学会の論文

著者

• Moore Brian

  Department Of Experimental Psychology University Of Cambridge

• MOORE Brian

  Department of Experimental Psychology, University of Cambridge

• Miyazono Hiromitsu

  Department of Administration, Prefectural University of Kumamoto

関連論文

• Dominant region for pitch at low fundamental frequencies (F0) : The effect of fundamental frequency, phase and temporal structure
• Perceptual learning of frequency discrimination for tones with low fundamental frequency : Learning for high but not for low harmonics
• PERCEPTION OF FREQUENCY-MODULATED SOUNDS
• Across-channel processes in auditory masking
• Implications for pitch mechanisms of perceptual learning of fundamental frequency discrimination: Effects of spectral region and phase

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