Since it was first proposed by Leon Festinger in the 1950s, cognitive dissonance theory has been the subject of many research papers. Explorations have expanded the theory to provide further insight into the conditions required for this phenomenon to occur, how it can be observed, and how it affects judgment. Cognitive dissonance has also proved useful in creating new ways to treat various mood disorders, such as depression and anxiety. The success of this type of therapy implies that there may be a stronger connection between these two topics that are often discussed apart from each other. This paper will outline the development of cognitive dissonance theory, its current applications in terms of psychotherapy, and the potential future studies that could further examine how cognitive dissonance relates to depression and anxiety.

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