A single exposure to altered auditory feedback causes observable sensorimotor adaptation in speech.
A single exposure to altered auditory feedback causes observable sensorimotor adaptation in speech.
复制标题
DOI：
10.7554/elife.73694
复制
发表时间：
2022-07-11
期刊：
影响因子：
7.7
通讯作者：
Diedrichsen, Joern
中科院分区：
文献类型：
--
作者：
Hantzsch, Lana;Parrell, Benjamin;Niziolek, Caroline A.;Diedrichsen, Joern
感觉错误引起两种类型的行为变化：运动中的快速补偿和后续运动的长期适应。尽管假设只要感知到感觉错误（包括单次暴露于改变的反馈之后）就会发生适应，但言语中发音运动的适应只有在反复暴露于听觉扰动之后才被观察到，这对当前的言语感觉运动适应理论和更普遍的理论提出了质疑适应的普遍性。我们在一个大型数据集中测量了单次暴露或“一次性”学习，其中参与者暴露于其语音声学的间歇性，不可预测的扰动。在这些干扰试验之后立即进行的无干扰试验中，参与者调整了他们的讲话以对抗先前的转变，这表明即使在单次暴露于听觉错误之后也会发生学习。这些结果提供了关键的支持，目前的理论，感觉运动适应的讲话和对齐的讲话更紧密地与学习在其他运动领域。
Sensory errors induce two types of behavioral changes: rapid compensation within a movement and longer-term adaptation of subsequent movements. Although adaptation is hypothesized to occur whenever a sensory error is perceived (including after a single exposure to altered feedback), adaptation of articulatory movements in speech has only been observed after repeated exposure to auditory perturbations, questioning both current theories of speech sensorimotor adaptation and the universality of more general theories of adaptation. We measured single-exposure or ‘one-shot’ learning in a large dataset in which participants were exposed to intermittent, unpredictable perturbations of their speech acoustics. On unperturbed trials immediately following these perturbed trials, participants adjusted their speech to oppose the preceding shift, demonstrating that learning occurs even after a single exposure to auditory error. These results provide critical support for current theories of sensorimotor adaptation in speech and align speech more closely with learning in other motor domains.