Schizophrenia and other psychotic disorders are characterized by alterations in behavioral and cognitive development and, closer to the onset of the first psychotic episode, by an at-risk mental state or “prodromal” phase of illness in which a noticeable change from premorbid functioning occurs.
16 Different types of prodrome have been identified, and patients may progress from 1 type to another.
17 For example, in 1 type, psychotic symptoms may appear intermittently but briefly. Subsequently, subclinical psychotic symptoms may persist for longer periods, and individuals may at some stage meet
International Classification of Diseases, Tenth Revision, criteria for schizotypal personality disorder. Another type consists of neurotic symptoms, which commonly start before positive symptoms; individuals may meet criteria for depression or anxiety disorders.
17 The question rises to what degree subtle negative interpersonal interactions induced by the changing behavior of individuals with an at-risk mental state may contribute to the risk of transition to a psychotic disorder. In other words, is it possible that subclinical psychotic experiences or other behavioral expressions of risk provoke stigmatizing reactions that further fuel the underlying psychotic process, increasing the risk for transition to a clinical psychotic episode?
There is face validity to the notion that people displaying behavioral expression of schizophrenia liability, whether it be in the form of a “prodrome,” in the context of “schizotypal” low-grade psychotic experiences or even in the form of subtle developmental behavioral alterations long before illness onset,
18 are likely to experience structural discrimination/stigmatization to a degree that it becomes relevant in terms of altering risk for transition to psychotic disorder. Although research is needed to address this question before firm conclusions can be drawn and interventions can be developed or adjusted, there is nevertheless some support for this notion in the literature. For example, Janssen et al
19 examined whether perceived discrimination on the basis of skin color or ethnicity, gender, age, appearance, disability, or sexual orientation was prospectively associated with onset of psychotic symptoms. The results indicated that perceived discrimination predicted, in a dose-response fashion, incident delusional ideation. One way of explaining these findings is to hypothesize that subtle changes in the behavior of individuals with early expression of psychosis liability give rise to negative social interactions and structural discrimination that in turn increase the risk for delusional ideation, eg, by facilitating a paranoid attributional style
20 and/or by sensitization (and/or increased baseline activity) of the mesolimbic dopamine system.
21 A prediction from this model is that in populations who suffer structural discrimination, the proportion of individuals with vulnerability for schizophrenia that actually makes the transition to psychotic disorder should be higher than in nonstigmatized populations. Recent work showing that the observed increased risk for schizophrenia in ethnic minority groups is contingent on the level of associated discrimination these groups are facing is compatible with this notion.
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