Both cognitive and emotion-related processes are involved in paranoid delusions. Treatment for paranoid patients should address both types of processes.
The psychological anomalies associated with PDs examined here are transdiagnostic but different measures of ToM may be more or less sensitive to indices of severity of the PDs, diagnosis and trait- or state-related cognitive effects.
This study has initiated the exploration of heuristic reasoning in paranoia and depression. The findings have therapeutic utility and future work could focus on the differentiation of paranoia and depression at a cognitive level.
We aimed to identify transdiagnostic psychological processes associated with persecutory delusions. Sixty-eight schizophrenia patients, 47 depressed patients, and 33 controls were assessed for paranoia, positive and negative self-esteem, estimations of the frequency of negative, neutral, and positive events occurring to the self in the past and in the future and similar estimates for events affecting others in the future. Negative self-esteem and expectations of negative events were strongly associated with paranoia in all groups. Currently deluded patients were asked to rate whether their persecution was deserved on an analogue scale. Mean deservedness scores were higher in deluded-depressed patients than deluded-schizophrenia patients, but patients in both groups used the full range of scores. The findings indicate that negative self-esteem and negative expectations independently contribute to paranoia, but do not support a simple categorical distinction between poor-me (persecution undeserved) and bad-me (persecution deserved) patients.
Vulnerable adults constitute a significant proportion of the population. GDPs should be aware of the signs of abuse, to be able to identify those individuals at risk, and how and when to raise concerns of abuse to social services.
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