Pessimism

Pessimism bias is a general mindset that always sees the negative side of things, commonly referred to as a ""glass half-empty" type of person. This bias is commonly related to ongoing or clinical depression. An example of this would be Eeyore the Donkey who is always expecting the worst and never expects anything positive to happen. A person with pessimism bias is emotionally predisposed to always see the "down" or negative side of everything.