German Aerospace Center (DLR), Aerospace Medicine, Linder Höhe, D-51147 Köln-Porz, NRW, Germany.
TNO Soesterberg, Priv.: Kolonieweg 16, 3768 EX Soest, The Netherlands.
Biol Psychol. 2014 Feb;96:77-85. doi: 10.1016/j.biopsycho.2013.11.004. Epub 2013 Dec 6.
The main methodological drawback to use physiological measures as indicators of arousal is, the large interindividual variability of autonomic responses hindering the direct comparability, between individuals. The present methodology has been tested in two cohorts (n1=910, n2=845) of, pilot applicants during a selection procedure. Physiological data were obtained during two mentally, demanding tasks and during a Flight Simulator Test. Five typical Autonomic Response Patterns (ARP), were identified by cluster analyses. Autonomic spaces were constructed separately for each group of, subjects having the same typical ARP, on the basis of their normalized eigenvectors. The length of the, vector sum of scores on autonomic space dimensions provided an integral index for arousal, labeled, Psychophysiological Arousal Value (PAV). The PAV still reflected the changes in mental load during the, tests, but equalized physiological differences among ARP-groups. The results obtained in the first, cohort were verified in the second cohort.
使用生理测量作为唤醒指标的主要方法学缺陷是，自主反应的个体间变异性很大，阻碍了个体之间的直接可比性。本方法已在两个队列（n1=910，n2=845）的飞行员申请人的选拔过程中进行了测试。生理数据是在两项心理要求高的任务和飞行模拟器测试期间获得的。通过聚类分析确定了五种典型的自主反应模式（ARP）。根据归一化本征向量，为具有相同典型 ARP 的每个受试者组分别构建自主空间。自主空间维度上的得分向量和的长度为唤醒提供了一个整体指标，称为“心理生理唤醒值（PAV）”。PAV 仍然反映了测试过程中心理负荷的变化，但在 ARP 组之间均衡了生理差异。在第一队列中获得的结果在第二队列中得到了验证。
