Abstract

The concept of general arousal has a long history in emotion research. However, the concept is more complex and nuanced than is generally appreciated. In this comment, we note some of the early conceptualizations of arousal and how they might comport with more modern representations of the construct. Importantly, we show how modern conceptualizations which incorporate the physiological complexity of arousal measurement and peripheral-central nervous system interactions might help to provide a more solid framework for the construct moving forward. The authors of the target article are to be commended for addressing this important issue.