Parasympathetic nervous system (PNS) activity has widespread research applications but poses measurement challenges due to its high sensitivity to environmental conditions and immediate demands. While standardised methods exist for measuring PNS reactivity and recovery in response to stressors, the selection of appropriate baseline and resting states is often overlooked. This commentary argues that a clearer conceptual distinction between baseline, a research construct for comparing values, and rest, a psychophysiological state of low arousal and cognitive engagement, is crucial for data interpretation. This includes a need for explicitly justifying baseline conditions in relation to research goals and validating rest conditions. By improving the clarity and rigour of baseline and rest, researchers can enhance the interpretability of PNS reactivity and recovery measures, supporting integration of research findings across studies.

中文翻译：

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基线和休息：在测量副交感神经反应性和恢复时需要概念清晰


副交感神经系统 （PNS） 活动具有广泛的研究应用，但由于对环境条件和即时需求高度敏感，因此带来了测量挑战。虽然存在测量 PNS 反应性和响应压力源的恢复的标准化方法，但选择合适的基线和静息状态经常被忽视。本评论认为，基线（一种比较价值的研究结构）和休息（一种低唤醒和认知参与的心理生理状态）之间更清晰的概念区别对于数据解释至关重要。这包括需要明确证明与研究目标相关的基线条件和验证休息条件。通过提高基线和休息的清晰度和严谨性，研究人员可以提高 PNS 反应性和恢复措施的可解释性，支持跨研究结果的整合。