Autonomic, electroencephalographic, and myogenic activity accompanying startle and its habituation during mid-childhood.
Autonomic, electroencephalographic, and myogenic activity accompanying startle and its habituation during mid-childhood.
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童年中期伴随惊吓及其习惯的自主神经、脑电图和肌源性活动。
DOI：
10.1111/j.1469-8986.1996.tb02426.x
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发表时间：
1996
期刊：
影响因子：
3.7
通讯作者：
Liu,M
中科院分区：
文献类型：
--
作者：
Ornitz,EM;Russell,AT;Yuan,H;Liu,M
这项研究调查了（a）惊吓的巨大个体差异与习惯范式中伴随的自主神经、中枢神经系统和肌源性活动之间的可能关联； (b) 这些变量的习惯模式。研究人员测量了 40 名正常 7-11 岁男孩在每次惊吓反应之前和之后对 40 次噪声突发的惊吓眨眼、心率、α 活动和眼轮匝肌肌电图 (EMG) 活动。状态振幅及其习惯化与初始值或自主神经、α 和 EMG 活动的连续变化无关；虽然惊吓已习惯，但惊吓前和惊吓后的肌原性、α和心脏活动未能习惯。正如习惯化的双过程理论所提出的，强直心脏活动得到促进，表明状态敏感化。
This study investigated (a) possible associations of the large individual variation in startle, with accompanying autonomic, central nervous system, and myogenic activities in a habituation paradigm; and (b) the patterns of habituation of these variables. Startle blinks to 40 noise bursts, heart rate, alpha activity, and orbicularis oculi electromyographic (EMG) activity preceding and following each startle response were measured in 40 normal 7–11‐year‐old boys. Statle amplitude and its habituation were independent of association with either initial values or successive changes in the autonomic, alpha, and EMG activities; whereas startle habituated, pre‐and poststartle myogenic, alpha, and cardiac activities failed to habituate. Tonic cardiac activity was facilitated, suggesting sensitization of state, as proposed in the dual‐process theory of habituation.