Abstract
Cognitive psychological models of depression emphasize the significance of the negativity biases or the loss of positive illusions (called depressive realism) in the etiology and maintenance of depressive disorders. This paper reviews researches on the functional brain imaging (fMRI) and positron emission tomography (PET) to understand the neural and molecular mechanisms of cognitive biases in evaluating self and other, and discusses the relationship between the functional networks of cognitive biases related to depression symptoms and the dopamine neurotransmission.
