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dyspnea as a “subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity experience derives from interactions among multiple physiological, psychological, social, and environmental factors, and may induce secondary physiological and behavioral responses.”
associated with increased work of breathing or a sense of an increased effort to breathe
The increased neural output from the motor cortex is thought to be sensed due to a corollary discharge that is sent to the sensory cortex at the same time that signals are sent to the ventilatory muscles.