Zimmermann U, Velden M, Wölk C
Department of Psychology, University of Osnabrück, F.R.G.
Int J Psychophysiol. 1991 Aug;11(2):125-9. doi: 10.1016/0167-8760(91)90004-h.
The interpretation of the 'cardiac cycle time effect', also named 'time-dependent primary bradycardia' by the Laceys, who first observed it, has been controversial in psychophysiology. Unconfounded evidence for the dependence of a vagal effect of psychological stimuli on time of stimulation within the cardiac cycle has been missing to date. An experiment in which the subjects could not anticipate the occurrence of the stimuli (short tones of a specific frequency that had to be counted) was performed. The data reduction procedure secured unambiguous interpretation of the data with respect to time-dependency or no time-dependency. No indication of any kind of cycle time dependency of the vagal effect was found.
“心动周期时间效应”（最初由莱西夫妇观察到，他们也将其命名为“时间依赖性原发性心动过缓”）的解释在心理生理学领域一直存在争议。迄今为止，尚未找到关于心理刺激的迷走神经效应依赖于心动周期内刺激时间的确凿证据。进行了一项实验，在该实验中，受试者无法预测刺激（必须计数的特定频率的短音）的发生。数据简化程序确保了对数据在时间依赖性或非时间依赖性方面的明确解释。未发现迷走神经效应存在任何周期时间依赖性的迹象。
