What is the primary characteristic of interpulsed intervals?

The primary characteristic of interpulsed intervals is that they represent current interruption that is imperceptible. In the context of electrical stimulation, interpulsed intervals allow the current to have brief pauses between pulses, which can result in a more physiological response while still maintaining the perception of continuous stimulation.

These intervals are designed so that the patient does not feel the interruption of current; instead, the overall sensation remains smooth and continuous. This characteristic is crucial in therapeutic applications, as it helps to minimize discomfort and allows for a more effective treatment without overwhelming the sensory nerves, thereby promoting comfort and compliance during electrical stimulation procedures.

In comparison, the other options, such as feeling the current, high voltage applications, or continuous electrical stimulation, do not accurately describe the nature of interpulsed intervals, as they either involve different types of sensations or methodologies that are outside the purview of this specific characteristic.