Sensorimotor adaptation of speech depends on the direction of auditory feedback alteration.
Sensorimotor adaptation of speech depends on the direction of auditory feedback alteration.
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DOI：
10.1121/10.0002876
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发表时间：
2020-12
期刊：
影响因子：
--
通讯作者：
Nagarajan SS
中科院分区：
文献类型：
--
作者：
Kothare H;Raharjo I;Ramanarayanan V;Ranasinghe K;Parrell B;Johnson K;Houde JF;Nagarajan SS
言语运动控制的一个标志性特征是它能够学习预测和补偿持续的反馈改变，这一过程被称为感觉运动适应。因为这个过程涉及调整清晰度以对抗改变声学反馈的感知效果，所以有许多因素影响它，包括声学和清晰度之间的复杂关系以及语音感知的不均匀性。因此，感觉运动适应被假设为在元音共振峰空间中应用的听觉反馈改变的方向的函数而变化。这一假设在两个实验中进行了测试，其中听觉反馈在真实的时间内被改变，改变了参与者语音的第一和第二共振峰（F1和F2）的频率值。移位是在逐个受试者的基础上设计的，并且相对于所施加的移位方向对感觉运动适应进行量化，并针对单个说话者进行标准化。适应确实被发现依赖于方向上的应用转移在元音共振峰空间，独立的移位幅度。这些发现对言语的感觉运动适应模型有一定的影响。
A hallmark feature of speech motor control is its ability to learn to anticipate and compensate for persistent feedback alterations, a process referred to as sensorimotor adaptation. Because this process involves adjusting articulation to counter the perceived effects of altering acoustic feedback, there are a number of factors that affect it, including the complex relationship between acoustics and articulation and non-uniformities of speech perception. As a consequence, sensorimotor adaptation is hypothesised to vary as a function of the direction of the applied auditory feedback alteration in vowel formant space. This hypothesis was tested in two experiments where auditory feedback was altered in real time, shifting the frequency values of the first and second formants (F1 and F2) of participants' speech. Shifts were designed on a subject-by-subject basis and sensorimotor adaptation was quantified with respect to the direction of applied shift, normalised for individual speakers. Adaptation was indeed found to depend on the direction of the applied shift in vowel formant space, independent of shift magnitude. These findings have implications for models of sensorimotor adaptation of speech.
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影响因子：
2.4
作者：
Burnett, TA;Freedland, MB;Hain, TC
通讯作者：
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影响因子：
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作者：
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作者：
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DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
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通讯作者：
HOCHBERG, Y
影响因子：
2.4
作者：
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