"During a period of psychosis, a person's thoughts and perceptions are disturbed and the individual may have difficulty understanding what is real and what is not. Symptoms of psychosis include delusions (false beliefs) and hallucinations (seeing or hearing things that others do not see or hear)."

https://www.nimh.nih.gov/health/topics/schizophrenia/raise/what-is-psychosis#:~:text=During%20a%20period%20of%20psychosis,do%20not%20see%20or%20hear).

Sounds synonymous with "detachment from reality" to me