Which term indicates a feeling of disconnection from oneself, as if observing from an outside perspective?

The correct term for a feeling of disconnection from oneself, as if observing from an outside perspective, is depersonalization. This phenomenon is characterized by a sense of unreality concerning one’s thoughts, feelings, and body, leading individuals to feel detached from their own experiences. It can be a distressing experience where a person feels as though they are an outside observer of their own life, impacting their sense of self and identity.

In contrast, derealization refers to a sense of detachment from the external world, where the environment may feel unreal or distorted. Delusions involve firmly held false beliefs that persist despite evidence to the contrary and do not encompass the feeling of disconnection from oneself. Hallucinations are sensory perceptions that occur without an external stimulus, such as hearing voices or seeing things that aren't present, which also does not relate directly to the sense of self observed in depersonalization. Understanding these distinctions emphasizes the unique characteristics of each term, particularly how depersonalization specifically involves an altered sense of self rather than an altered perception of reality or external stimuli.