Ingrid Hartveit Svendsen

• Svendsen, Ingrid Hartveit; Øie, Merete Glenne; Møller, Paul; Nelson, Barnaby; Melle, Ingrid & Haug, Elisabeth (2020). Basic self-disturbances are associated with Sense of Coherence in patients with psychotic disorders. PLOS ONE.  ISSN 1932-6203.  15(4), s 1- 11 . doi: 10.1371/journal.pone.0230956 Fulltekst i vitenarkiv. Vis sammendrag

  Background The Sense of Coherence (SOC) theory gives a possible explanation of how people can experience subjective good health despite severe illness. Basic self-disturbances (BSDs) are subtle non-psychotic disturbances that may destabilize the person’s sense of self, identity, corporeality, and the overall ‘grip’ of the world. Aim Our objective was to investigate associations between BSDs and SOC in patients with psychotic disorders. Design This is a cross-sectional study of 56 patients diagnosed with psychotic disorders inside and outside the schizophrenia spectrum (35 schizophrenia, 13 bipolar, and eight other psychoses). SOC was measured using Antonovsky’s 13-item SOC questionnaire, and BSDs were assessed using the Examination of Anomalous Self-Experience (EASE) manual. Diagnosis, symptoms, and social and occupational performance were assessed using standardized clinical instruments. Results We found a statistically significant correlation (r = ) between high levels of BSDs and low levels of SOC (r = -0.64/p<0.001). This association was not influenced by diagnostics, clinical symptoms or level of functioning in follow-up multivariate analyses. Conclusion A statistically significant association between BSDs and SOC indicates that the presence and level of self-disturbances may influence the person's ability to experience life as comprehensive, manageable and meaningful. However, the cross-sectional nature of the study precludes conclusions regarding the direction of this association.

• Svendsen, Ingrid Hartveit; Øie, Merete Glenne; Møller, Paul; Nelson, Barnaby; Haug, Elisabeth & Melle, Ingrid (2019). Basic Self-Disturbances Independently Predict Recovery in Psychotic Disorders: A Seven Year Follow-up Study. Schizophrenia Research.  ISSN 0920-9964.  212, s 72- 78 . doi: 10.1016/j.schres.2019.08.009 Fulltekst i vitenarkiv. Vis sammendrag

  Background Recovery is the ultimate goal of psychosis treatment . Basic self-disturbances (BSDs) are non-psychotic phenomena associated with clinical outcome, present in prodromal, psychotic and residual phases of psychotic disorders. Aim To investigate the relationship between BSDs and recovery seven years after first treatment in patients with psychotic disorders. Method Prospective longitudinal study of 56 patients recruited during first adequate treatment for schizophrenia (n = 35) and other psychotic disorders (n = 21) (psychotic bipolar disorder, delusional disorder, psychotic disorder NOS). At baseline and follow-up BSDs were assessed using the Examination of Anomalous Self-Experience (EASE) manual, while standard clinical instruments were used to ascertained diagnosis, clinical symptom severity, and functioning. Recovery was defined as absence of psychotic symptoms and regaining of functioning that persisted the last two years before follow-up. Results At follow up, 34% achieved recovery (5 (14%) with schizophrenia and 14 (67%) with other psychoses at baseline). Recovery was predicted by an absence of a schizophrenia diagnosis, low baseline level of BSDs and further reductions in BSDs from baseline to follow-up. Change in BSDs was the strongest predictor, also after adjusting for premorbid adjustment and duration of untreated psychosis, and was not confounded by diagnosis. Conclusion Low baseline levels of basic self-disturbances and further reductions over time independently predict recovery seven years later in first treated psychosis patients.

• Svendsen, Ingrid Hartveit; Øie, Merete Glenne; Møller, Paul; Nelson, Barnaby; Melle, Ingrid & Haug, Elisabeth (2018). Stability in basic self-disturbances and diagnosis in a first treated psychosis: A seven year follow-up study. Schizophrenia Research.  ISSN 0920-9964.  202, s 274- 280 . doi: 10.1016/j.schres.2018.07.011 Fulltekst i vitenarkiv.

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• Svendsen, Ingrid Hartveit; Øie, Merete Glenne; Møller, Paul; Nelson, Barnaby; Melle, Ingrid & Haug, Elisabeth (2018). Self-disturbances and diagnostic stability in first episode psychosis- a seven year follow-up study.

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