What evidence supports the James-Lange theory?

The evidence supporting the James-Lange theory can indeed be illustrated by the observation that quadriplegics report less intense emotions. The James-Lange theory posits that emotions result from the perception of physiological responses to stimuli. In other words, this theory suggests that we experience emotions because we notice our bodily reactions first, such as increased heart rate or sweating.

In the case of individuals with quadriplegia, who may have diminished physiological feedback due to their inability to move or feel certain bodily sensations, their reduced capacity to experience these physiological changes correlates with a reported decrease in emotional intensity. This observation supports the idea that bodily responses are fundamental to the experience of emotions, aligning with the central tenet of the James-Lange theory. It highlights the relationship between physiological states and emotional experiences, indicating that when the physiological component is impaired or absent, the emotional response may also be affected.