RESPIRATORY INFLUENCES ON CARDIAC RESPONSES DURING ATTENTION
RESPIRATORY INFLUENCES ON CARDIAC RESPONSES DURING ATTENTION
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DOI：
10.3758/bf03335298
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发表时间：
1977-01-01
期刊：
影响因子：
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通讯作者：
PORGES, SW
中科院分区：
文献类型：
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作者：
CHEUNG, MN;PORGES, SW
研究了呼吸抑制对被试在反应时和视觉搜索两种注意任务中心脏反应的影响。这些反应被分成两个连续的成分：短潜伏期(反应性)加速和长潜伏期(紧张性)成分，其特征是方向性和稳定性的变化。反应性心脏反应成分与呼吸活动的变化无关。紧张期的呼吸抑制与反应时间任务中的心脏减速和稳定有关，但与视觉搜索任务中的心脏减速和稳定无关。
The effects of respiration inhibition on cardiac responses were investigated in human subjects during 2 attentional tasks: reaction time and visual search. The responses were partitioned into 2 sequential components: a short-latency (reactive) acceleration and a longer latency (tonic) component characterized by directional and stabilization changes. The reactive cardiac response components were independent of changes in respiratory activity. Respiration inhibition during the tonic interval was related to both cardiac deceleration and stabilization in the reaction time task but not during visual search.