Beck's cognitive triad
（重定向自Cognitive triad）
![A diagram showing Beck's cognitive triad](/Images/godic/202501/05/Beck's_CognitiveTriad0445.png")
Beck's cognitive triad, also known as the negative triad, is an irrational and pessimistic view of the three key elements of a person's belief system present in depression. It was proposed by Aaron Beck in 1976. The triad forms part of his cognitive theory of depression.