체성 감각 증폭
통증을 증폭시키는 현상. 예측하는 뇌 가설에서는 정밀도 변동으로 설명한다.
사례
16cm 길이의 못이 발을 관통한 환자가 극심한 고통을 호소했으나 신발을 벗겨보니 못이 발가락 사이를 지나가서 아무 외상이 없었다:
In one report (6), Fisher et al. described the case of a builder who jumped down onto a 7-inch nail, which pierced his boot at the toe level (Figure 1, left panel). The man was in pain and required intravenous sedation in the emergency room. However, when the boot was cut away, it turned out that the nail had fortunately passed between his toes as opposed to its apparent impaling of the foot. The man’s agonizing pain was elicited solely by his misperception—a case of somatic amplification. —Biological substrate for somatoform disorders: importance of pathophysiology
통각 수용체의 신호는 통각 경험을 야기하는 여러 원인 중 하나일 뿐이다.