PHASIC NOT TONIC PUPILLARY RESPONSES VARY WITH AUDITORY VIGILANCE PERFORMANCE
PHASIC NOT TONIC PUPILLARY RESPONSES VARY WITH AUDITORY VIGILANCE PERFORMANCE
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DOI：
10.1111/j.1469-8986.1982.tb02540.x
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发表时间：
1982-01-01
期刊：
影响因子：
3.7
通讯作者：
BEATTY, J
中科院分区：
文献类型：
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作者：
BEATTY, J
研究人员对11名大学生的瞳孔运动进行了监测，让他们在48分钟的时间里，以3.2秒的间隔听一系列1K Hz、50ms的音调爆发。他们的任务是报告目标音调（-3dB），这些音调随机出现的概率为0.12。在这些条件下，监控性能随着任务时间的推移而恶化。这种警惕性的降低是由于听者敏感性的降低和决策标准的保守转移，这是由信号检测分析确定的。阶段性任务诱发的瞳孔反应的振幅反映了这些表现的变化，随着任务时间的推移而显著下降。强直或基线瞳孔直径与成绩没有这种关系。这些结果是在注意激活理论的背景下解释的，该理论表明，一个共同的神经生理系统介导了密集和持续的注意过程。
Pupillary movements were monitored as 11 university students listened to a series of 1K Hz 50 ms tone bursts presented at 3.2 s intervals for 48 min. Their task was to report target tones (-3dB), which were presented randomly with a probability of 0.12. Under these conditions, monitoring performance deteriorated as a function of time on the task. This vigilance decrement was attributed to both a decrease in listener sensitivity and a conservative shift in decision criterion, as determined by a signal detection analysis. The amplitude of the phasic task-evoked pupillary response reflected these changes in performance, decreasing significantly over time on the task. Tonic or baseline pupillary diameter exhibited no such relationship with performance. These results are interpreted in the context of an activation theory of attention that suggests that a common neurophysiological system mediates both intensive and sustained attentional processes.