Depersonalisation is referred to a sensation of isolation or separation from oneself and one's own body, while derealisation is referred to a sensation of unreality or lack of connection with the surrounding world. Even though many people can have this one-time experience, if experienced repeatedly, or if it doesn't fully disappear, it can generate significant malaise, and it would be considered an established disorder.
The exact causes are still unknown, but it is believed that they may be related to biological, psychological and environmental factors.
Symptoms include depersonalisation and derealisation sensations, anxiety, nausea, confusion, depression and other emotional symptomatology.
To perform an accurate diagnosis, a professional in mental health will perform an in-depth clinical evaluation in which additional tests can be used such as a blood culture or brain imaging.
Treatment for depersonalisation-derealisation disorder can be based off of antidepressants and anxiolytics, as well as psychological therapy.
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