Respiratory-Related-Evoked Potential Measures of Respiratory Sensory Gating in Attend and Ignore Conditions
Respiratory-Related-Evoked Potential Measures of Respiratory Sensory Gating in Attend and Ignore Conditions
复制标题
注意和忽视条件下呼吸感觉门控的呼吸相关诱发电位测量
DOI：
10.1097/wnp.0b013e3181c2bcf7
复制
发表时间：
2009
影响因子：
2.4
通讯作者：
P. Davenport
中科院分区：
文献类型：
--
作者：
Pei;P. Davenport
呼吸感觉门控发生的证据是，当两个闭合间隔500毫秒时，第二个刺激（S2）的呼吸相关诱发电位（RREP） N1峰幅度下降。S2与第一次闭塞（S1）的RREP N1峰幅比S2/S1通常<0.5。呼吸负荷的控制注意是通过RREP的P300峰值来测量的。我们假设配对遮挡引起N1和P300峰值振幅将被控制的注意力调制。RREP记录在无视和出席试验中。测量了S1和S2的RREP Nf、P1、N1和P300峰的振幅以及S2/S1比值。Nf、P1和N1峰的S1振幅在参加和不参加条件之间无显著差异。S2 Nf、P1和N1峰幅值在不同条件下无显著差异，但均显著小于S1。Nf、P1和N1峰的S2/S1比值在参与和忽略条件下无显著差异。参加试验的S1 RREP P300峰值幅度显著大于忽略试验。出席S1 P300振幅显著大于出席S2振幅。参加P300的S2/S1比显著小于忽略比。这些结果表明，呼吸门控在注意和忽视条件下都是明显的。P300峰S2/S1比值与呼吸机械感觉中枢神经门控的控制注意调节一致。
Respiratory sensory gating is evidenced by decreased respiratory-related-evoked potentials (RREP) amplitude of the N1 peak for the second stimulus (S2) when two occlusions are separated by a 500-millisecond interval. The RREP N1 peak amplitude ratio of the S2 and the first occlusion (S1), S2/S1, is usually <0.5. Controlled attention of respiratory loads is measured by the P300 peak of the RREP. We hypothesized that the paired occlusion elicited N1 and the P300 peak amplitudes will be modulated by controlled attention. The RREP was recorded in ignore and attend trials. The amplitudes of the RREP Nf, P1, N1, and P300 peaks for S1 and S2 and the S2/S1 ratios were measured for both trials. The S1 amplitudes of the Nf, P1, and N1 peaks were not significantly different between the attend and ignore conditions. The S2 Nf, P1, and N1 peak amplitudes were not significantly different between conditions but were all significantly less than S1. The S2/S1 ratios for Nf, P1, and N1 peaks were not significantly different between the attend and ignore conditions. The S1 RREP P300 peak amplitude in attend trials was significantly greater than in ignore trails. The attend S1 P300 amplitude was significantly greater than the attend S2 amplitude. The attend P300 S2/S1 ratio was significantly less than the ignore ratio. These results demonstrated that respiratory gating is evident in both attend and ignore conditions. The P300 peak S2/S1 ratio is consistent with controlled attention modulation of central neural gating of respiratory mechanosensation.
影响因子：
3
作者：
Polich, J;Margala, C
通讯作者：
Margala, C
影响因子：
3.3
作者：
Davenport, Paul W.;Chan, Pei-Ying Sarah;Chou, Yang-Ling
通讯作者：
Chou, Yang-Ling