Answer:
Perceptual defenses
Explanation:
The perceptual defenses are used to explain why certain of the stimuli has a higher recognition of the threshold. This happened because of the perceptual wall or the block of the offensive stimuli.
This might create anxiety, fear, and depression. Other taboo words have higher recognition such as cigarette is injurious to health, violent act, etc.
Thus in modern psychological theory, Theses mechanism are referred to as the perceptual defenses.