Auditory-motor integration of subliminal phase shifts in tapping: better than auditory discrimination would predict.
Auditory-motor integration of subliminal phase shifts in tapping: better than auditory discrimination would predict.
复制标题
DOI：
10.1007/s00221-014-3837-9
复制
发表时间：
2014-04
影响因子：
2
通讯作者：
Whitall, Jill
中科院分区：
文献类型：
--
作者：
Kagerer, Florian A.;Viswanathan, Priya;Contreras-Vidal, Jose L.;Whitall, Jill
关键词：
单侧敲击研究表明，成年人会适应相位或频率的可感知和潜意识变化。本研究的重点是在交替的双边轻敲过程中的相位反应的突然/可感知和渐进/阈下变化的运动-动作关系。我们调查了这些反应的参与者和没有良好的感知敏锐度确定的听觉阈值测试。非音乐家的成年人（每组9人）交替敲击他们的食指，与频率为1.4 Hz的听觉线索同步。两组人都将他们的反应（没有后遗症）调节到可感知的和阈下的变化，低至相位变化5°。高阈值参与者比低阈值的成年人在渐进条件集中的反应更多变（p=0.05）。两组都表现出同步不对称的优势和非优势的手与突然的条件和后来的块的渐进条件。我们的研究结果扩展了以前在单侧敲击方面的工作，并表明：（1）辨别阈值和可感知的运动-运动整合之间没有关系;（2）阈值较高的人的皮层下回路噪音更大。
Unilateral tapping studies have shown that adults adjust to both perceptible and subliminal changes in phase or frequency. This study focuses on the phase responses to abrupt/perceptible and gradual/subliminal changes in auditory-motor relations during alternating bilateral tapping. We investigated these responses in participants with and without good perceptual acuity as determined by an auditory threshold test. Non-musician adults (9 per group) alternately tapped their index fingers in synchrony with auditory cues set at a frequency of 1.4 Hz. Both groups modulated their responses (with no after-effects) to perceptible and to subliminal changes as low as a 5° change in phase. The high threshold participants were more variable than the adults with low threshold in their responses in the gradual condition set (p=0.05). Both groups demonstrated a synchronization asymmetry between dominant and non-dominant hands associated with the abrupt condition and the later blocks of the gradual condition. Our findings extend previous work in unilateral tapping and suggest (1) no relationship between a discrimination threshold and perceptible auditory-motor integration and (2) a noisier subcortical circuitry in those with higher thresholds.
登录
查看更多内容
DOI：
10.1037/0096-1523.27.3.600
发表时间：
2001-06-01
影响因子：
2.1
作者：
Repp, BH
通讯作者：
Repp, BH
影响因子：
2.5
作者：
Aschersleben, G
通讯作者：
Aschersleben, G
影响因子：
2.1
作者：
Repp, BH
通讯作者：
Repp, BH
影响因子：
1.3
作者：
PETERS, M
通讯作者：
PETERS, M
影响因子：
1.4
作者：
Forrester, L;Whitall, J
通讯作者：
Whitall, J