Which of the following is defined as behaving in opposition to actual feelings?

The term that describes behaving in opposition to actual feelings is reaction formation. This psychological defense mechanism involves an individual expressing feelings, thoughts, or behaviors that are opposite to their true feelings—essentially masking unwanted emotions by adopting their opposites. For example, if a person feels anger toward someone but instead behaves in an excessively friendly manner, they are utilizing reaction formation to manage their conflicting emotions.

In contrast, introjection refers to incorporating the beliefs and values of others into one’s own psyche, while projection involves attributing one’s own unacceptable feelings or thoughts to someone else. Sublimation is a process where socially unacceptable impulses are transformed into socially acceptable actions or behavior. Each of these concepts is distinct, and understanding reaction formation's role in emotional regulation is crucial for grasping broader psychological mechanisms.