RELATIVE POWER OF HARMONICS IN HUMAN FREQUENCY-FOLLOWING RESPONSES ASSOCIATED WITH VOICE PITCH IN AMERICAN AND CHINESE ADULTS
RELATIVE POWER OF HARMONICS IN HUMAN FREQUENCY-FOLLOWING RESPONSES ASSOCIATED WITH VOICE PITCH IN AMERICAN AND CHINESE ADULTS
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DOI：
10.2466/10.24.pms.113.4.67-86
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发表时间：
2011-08-01
影响因子：
1.6
通讯作者：
Lin, Chia-Der
中科院分区：
文献类型：
--
作者：
Jeng, Fuh-Cherng;Costilow, Cassie E.;Lin, Chia-Der
当从复杂刺激中移除基频 (f0) 时，听众仍能感知到 f0 的音高。通过使用头皮记录的频率跟随响应，本研究通过系统地操纵语音刺激以消除分量频率，检查了 f0 及其谐波在音调处理中的相对贡献。招募了 12 名美国成年人和 12 名中国成年人。音调强度和频率误差对实验条件因素有统计上显着的影响。仅谐波条件下的响应明显大于仅 f0 条件和控制条件下获得的响应。两组参与者之间没有观察到统计学上的显着差异。这些发现表明，与单个和声相关的神经反应主导着人类脑干的音调处理，无论听者的母语是非声调还是声调。
When the fundamental frequency (f0) is removed from a complex stimulus, the pitch of the f0 is still perceived by the listener. Through the use of the scalp-recorded frequency-following response, this study examined the relative contributions of the f0 and its harmonics in pitch processing by systematically manipulating the speech stimulus to remove component frequencies. 12 American and 12 Chinese adults were recruited. There were statistically significant effects of pitch strength and frequency error for the experimental-condition factor. There were significantly larger responses to the harmonics-only conditions than those obtained in the f0-only and control conditions. No statistically significant difference was observed between the two groups of participants. These findings indicate that neural responses associated with individual harmonics dominate the pitch processing in the human brainstem, irrespective of whether the listener's native language is nontonal or tonal.