Automatic and controlled attentional processes in startle eyeblink modification: effects of habituation of the prepulse.
Automatic and controlled attentional processes in startle eyeblink modification: effects of habituation of the prepulse.
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DOI：
10.1111/1469-8986.3740409
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发表时间：
2000-07
期刊：
影响因子：
3.7
通讯作者：
A. Schell;J. Wynn;M. Dawson;N. Sinaii;C. B. Niebala
中科院分区：
文献类型：
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作者：
A. Schell;J. Wynn;M. Dawson;N. Sinaii;C. B. Niebala
通过两个实验研究了前脉冲的预习惯化对惊吓眨眼修正的影响。在实验1中，大学生参与者要么prehabitated或nonhabitated的语气，作为一个前脉冲在惊吓修改被动注意范式。短导联间隔（60和120 ms）前脉冲抑制（PPI）和长导联间隔（2,000 ms）前脉冲易化（PPF）均不受预习惯化程序的影响。在实验2中，被试呈现了一个主动注意范式，其中两个音调前脉冲之一被注意，而另一个被忽略。其中一组被试对前脉冲有了预先的习惯，另一组则没有。与实验1中被动范式的结果不同，预习惯化确实显著降低了PPI和PPF的注意调节。这些结果是一致的假设，被动PPI和PPF主要是自动的过程，而注意力调节涉及控制的认知加工。
The effect of prehabituation of the prepulse on startle eyeblink modification was studied in two experiments. In Experiment 1, college student participants were either prehabituated or nonhabituated to a tone that served as a prepulse in a startle modification passive attention paradigm. Neither short lead interval (60 and 120 ms) prepulse inhibition (PPI) nor long lead interval (2,000 ms) prepulse facilitation (PPF) was affected by the prehabituation procedure. In Experiment 2, participants were presented with an active attention paradigm in which one of two tone prepulses was attended while the other was ignored. One group was prehabituated to the prepulses and the other was not. Unlike the results with the passive paradigm in Experiment 1, prehabituation did significantly diminish attentional modulation of PPI and PPF. These results are consistent with the hypothesis that passive PPI and PPF are primarily automatic processes, whereas attentional modulation involves controlled cognitive processing.