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Selective and nonselective attention effects on prepulse inhibition of startle: a comparison of task and no-task protocols
Biological Psychology ( IF 2.6 ) Pub Date : 2003-11-01 , DOI: 10.1016/s0301-0511(03)00077-2
Diane L Filion 1 , Albert B Poje
Affiliation  

The effects of selective and nonselective attentional processes on prepulse inhibition (PPI) of the acoustic startle response were examined by assessing PPI under intermixed task and no-task conditions. Results for the task condition revealed that greater PPI was produced by an attended than an ignored prepulse at a lead interval of 120 ms (marginally significant in the early trial block and significant in the late trial block), indicating an effect of selective attention at this lead interval. Comparisons between the task and no-task conditions revealed significantly greater PPI in the task than no-task condition at a 60-ms lead interval, during early and late trial blocks, indicating a nonselective attention effect at this lead interval. Overall, these results suggest that PPI is sensitive to selective and nonselective attentional influences and indicate that task and no-task PPI protocols reveal unique aspects of sensorimotor gating ability.

中文翻译:

选择性和非选择性注意对惊吓前脉冲抑制的影响:任务和无任务协议的比较

通过在混合任务和无任务条件下评估 PPI 来检查选择性和非选择性注意过程对声惊吓反应的前脉冲抑制 (PPI) 的影响。任务条件的结果显示,在 120 ms 的超前间隔(在早期试验块中略显显着,在试验块晚期显着),参与的预脉冲产生的 PPI 比忽略的预脉冲产生的 PPI 更大,表明选择性注意在这一点上的作用领先间隔。任务和无任务条件之间的比较显示,在早期和晚期试验块期间,在 60 毫秒的引导间隔下,任务中的 PPI 比无任务条件显着更高,表明在此引导间隔中存在非选择性注意效应。全面的,
更新日期:2003-11-01
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