Institute of Neuroscience and Physiology, Department of Pharmacology, Sahlgrenska Academy, University of Gothenburg, Sweden.
J Sex Res. 2011 Jul;48(4):316-24. doi: 10.1080/00224499.2010.518293.
Ecological Momentary Assessment (EMA) was used to investigate associations between, and variations in, ejaculatory control and ejaculation latency time (ELT) over repeated measurements of sexual activities. Differences between measures recorded in partnered or non-partnered settings were also investigated. The sample consisted of 21 male Finns aged 18 years or above, contributing a total of 158 reports of partnered and non-partnered sexual activities over a six-week period. In the context of non-partnered sexual activities, after controlling for within-subjects dependence, ELTs between events were predictive of one another, but ELT did not predict ejaculatory control when measured simultaneously, nor at subsequent events. Also, ejaculatory control could not predict simultaneously measured ELT or ejaculatory control at subsequent events. During partnered sexual activities, both ejaculatory control and ELT could be accurately predicted by observing ejaculatory control at prior events. In this context, ejaculatory control could also reliably predict simultaneously measured ELT. ELT or ejaculatory control during partnered sexual activity could not be predicted by observing ELT at prior events. Between-event correlations were generally low, indicating considerable variation in ejaculatory functioning over time. EMA is a thrifty assessment method for studying variations in ejaculatory function, and is likely suitable for studying sexual dysfunctions in general.
生态瞬时评估（EMA）被用于研究在重复的性行为测量中，射精控制和射精潜伏期时间（ELT）之间的关联和变化。还研究了在有伴侣和无伴侣的环境中记录的测量值之间的差异。该样本由 21 名年龄在 18 岁及以上的芬兰男性组成，他们在六周的时间内共报告了 158 次有伴侣和无伴侣的性行为。在无伴侣性行为的背景下，在控制了个体内依赖性后，事件之间的 ELT 彼此具有预测性，但 ELT 同时测量时不能预测射精控制，也不能预测随后的事件。此外，射精控制也不能预测同时测量的 ELT 或随后的事件中的射精控制。在有伴侣的性行为中，射精控制和 ELT 都可以通过观察先前事件中的射精控制来准确预测。在这种情况下，射精控制也可以可靠地预测同时测量的 ELT。在有伴侣的性行为中，ELT 或射精控制不能通过观察先前事件中的 ELT 来预测。事件间的相关性通常较低，表明射精功能随时间变化很大。EMA 是一种研究射精功能变化的经济评估方法，可能适用于研究一般性功能障碍。
