Desensitization

Desensitization in the context of haptic feedback refers to the gradual reduction in a person's sensitivity to continuous or repeated vibrotactile stimulation on the skin. When haptic actuators vibrate continuously at the same location, users progressively become less able to perceive the stimulus, reducing the effectiveness of the feedback. This is an important design consideration for wearable haptic devices used in accessibility applications, where designers must balance providing enough feedback for guidance with avoiding overstimulation that leads to adaptation and fatigue.