Arousal Predisposition as a Vulnerability Indicator for Psychosis: A General Population Online Stress Induction Study

  • Clamor A
  • Warmuth A
  • Lincoln T
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Abstract

Explanatory models ascribe to arousability a central role for the development of psychotic symptoms. Thus, a disposition to hyperarousal (i.e., increased arousal predisposition (AP)) may serve as an underlying vulnerability indicator for psychosis by interacting with stressors to cause symptoms. In this case, AP, stress-response, and psychotic symptoms should be linked before the development of a diagnosable psychotic disorder. We conducted a cross-sectional online study in a population sample ( N = 104 ; M age = 27.7 years, S D = 11.2 , range 18–70). Participants rated their AP and subclinical psychotic symptoms. Participants reported their stress-levels before and after two stress inductions including an arithmetic and a social stressor. The participants with an increased AP generally felt more stressed. However, AP was not associated with the specific stress-response. As expected, positive psychotic symptoms were significantly associated with AP, but this was not mediated by general stress-levels. Its association to subtle, nonclinical psychotic symptoms supports our assumption that AP could be a vulnerability indicator for psychosis. The trait is easily accessible via a short self-report and could facilitate the identification of people at risk and be a promising target for early stress-management. Further research is needed to clarify its predictive value for stress-responses.

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Clamor, A., Warmuth, A. M., & Lincoln, T. M. (2015). Arousal Predisposition as a Vulnerability Indicator for Psychosis: A General Population Online Stress Induction Study. Schizophrenia Research and Treatment, 2015, 1–8. https://doi.org/10.1155/2015/725136

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