Harrell J P
Percept Mot Skills. 1979 Apr;48(2):663-9. doi: 10.2466/pms.1979.48.2.663.
Anticipatory cardiac activity to a signaled stressful event was hypothesized to be related to individual differences in locus of control and to autonomic balance. Subjects experienced 5 trials of a 105-db burst of white noise that was signaled by a milder tone. Significant increases in electrodermal as well as heart-rate responses occurred after the stress tone. While anticipating stress, the 10 subjects designated as having high levels of coherence between heart-rate and respiratory activity (high parasympathetic balance) showed reduced heart-rate and respiratory activity (high parasympathetic balance) showed reduced heart-rate variability over the 10 subjects with low coherence. Locus of control was not related to anticipatory activity. Anticipatory cardiac activity is discussed in light of two current psychophysiological models of attention.
预期心脏活动与一个有信号提示的应激事件有关，这种关系被假定与控制点的个体差异以及自主神经平衡有关。受试者经历了5次由温和音调提示的105分贝白噪声突发试验。应激音调出现后，皮肤电反应以及心率反应显著增加。在预期应激时，被指定为心率与呼吸活动具有高度一致性（高副交感神经平衡）的10名受试者，相较于低一致性的10名受试者，心率变异性降低，且心率和呼吸活动（高副交感神经平衡）也有所降低。控制点与预期活动无关。本文根据当前两种注意力的心理生理学模型对预期心脏活动进行了讨论。
