Pitch perception beyond the traditional existence region of pitch
Pitch perception beyond the traditional existence region of pitch
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DOI：
10.1073/pnas.1015291108
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发表时间：
2011-05-03
影响因子：
11.1
通讯作者：
Santurette, Sebastien
中科院分区：
文献类型：
--
作者：
Oxenham, Andrew J.;Micheyl, Christophe;Santurette, Sebastien
人类识别音乐旋律的能力通常限于低于4或5 kHz的纯音频率。这个极限与现代乐器上的最高音符相吻合，并且被广泛认为反映了听觉神经中精确刺激驱动的尖峰定时的上限。我们测试了音高和旋律感知的上限在人类使用纯和谐波复杂的音调，如那些由人类的声音和乐器，在旋律识别和音高匹配任务。我们发现，强大的音高感知可以引起谐波复杂的音调与基频低于2 kHz，即使当所有的个别谐波都高于6 kHz-远高于目前接受的存在区域的音高和以上目前接受的限制的神经相位锁定。结果表明，在高频率的音高感知不受听觉神经中的时间相位锁定的限制，但可能源于先前暴露于谐波声音所形成的更高级别的约束。
Humans' ability to recognize musical melodies is generally limited to pure-tone frequencies below 4 or 5 kHz. This limit coincides with the highest notes on modern musical instruments and is widely believed to reflect the upper limit of precise stimulus-driven spike timing in the auditory nerve. We tested the upper limits of pitch and melody perception in humans using pure and harmonic complex tones, such as those produced by the human voice and musical instruments, in melody recognition and pitch-matching tasks. We found that robust pitch perception can be elicited by harmonic complex tones with fundamental frequencies below 2 kHz, even when all of the individual harmonics are above 6 kHz-well above the currently accepted existence region of pitch and above the currently accepted limits of neural phase locking. The results suggest that the perception of musical pitch at high frequencies is not constrained by temporal phase locking in the auditory nerve but may instead stem from higher-level constraints shaped by prior exposure to harmonic sounds.