en.wikipedia.org/wiki/Fantasy_(psychology)
1 correction found
Fantasy is a common symptom in individuals with schizophrenia; they depict specific patterns of high-neurological activities in their brains' default mode network, which possibly constitute the biomarker of these fantasies.
This sentence conflates schizophrenia with “fantasy” and overstates biomarker evidence. Standard clinical references list delusions, hallucinations, disorganized thinking/behavior, and negative or cognitive symptoms—not “fantasy”—and reviews say there is still no clinically established biomarker for schizophrenia.
Full reasoning
Authoritative clinical sources do not describe "fantasy" as a standard or common symptom of schizophrenia. WHO says schizophrenia is characterized by impaired reality testing and behavior changes such as persistent delusions, persistent hallucinations, disorganized thinking, highly disorganized behavior, and negative symptoms. NIMH likewise groups schizophrenia symptoms into psychotic, negative, and cognitive symptoms, including hallucinations, delusions, and thought disorder.
The sentence is also misleading on biomarkers. Recent review literature states that schizophrenia diagnosis is still clinical and that there is no clinically applicable biomarker for the disorder. Research on the brain's default mode network (DMN) is exploratory: one review explicitly calls DMN connectivity a future biomarker under study for schizophrenia risk/prognosis, not an existing biomarker of "fantasies." So the article's wording incorrectly presents both the symptom picture and the biomarker status.
In short: the mainstream medical description of schizophrenia does not treat "fantasy" as a common symptom, and DMN findings are not an established biomarker of fantasies in schizophrenia.
4 sources
- WHO fact sheet: Schizophrenia
WHO states that schizophrenia is characterized by persistent delusions, persistent hallucinations, disorganized thinking, highly disorganised behaviour, and negative symptoms.
- National Institute of Mental Health: Schizophrenia
NIMH says schizophrenia symptoms generally fall into three categories—psychotic, negative, and cognitive—and psychotic symptoms include hallucinations, delusions, and thought disorder.
- A scoping review of protein biomarkers for schizophrenia: State of progress, underlying biology, and methodological considerations
The abstract states: 'Currently, given the lack of clinically applicable biomarkers for schizophrenia, there is no molecular test ... to assist psychiatrists either in the prediction or diagnosis of the disorder.'
- SCHIZOPHENIA: DEFAULT MODE NETWORK CONNECTIVITY AS A FUTURE BIOMARKER
This review describes DMN connectivity as a 'potential future' biomarker for schizophrenia-related risk or treatment response, not an established biomarker of fantasies.