Depression in paranoid and nonparanoid schizophrenic patients compared with major depressive disorder

Candido, Carmie L.; Romney, David M.

doi:10.1016/s0165-0327(01)00353-6

Cited by 17 publications

(12 citation statements)

References 56 publications

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“…Specific schizophrenia subtypes seem to be related to the occurrence of depressive symptoms. For example, some have found that there are increased rates of depressive symptoms in patients with paranoid symptoms (30), while the deficit syndrome in schizophrenia has been associated with lower levels of depressive symptoms (31). Manic episodes can also be observed in subgroups of patients with schizophrenia (32).…”

Section: Heterogeneity Of Mixed Psychoses and Overlapping Genetic Rismentioning

confidence: 99%

Major psychoses with mixed psychotic and mood symptoms: are mixed psychoses associated with different neurobiological markers?

Bora

Yücel

Fornito

et al. 2008

Acta Psychiatr Scand

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Section: Heterogeneity Of Mixed Psychoses and Overlapping Genetic Rismentioning

confidence: 99%

Major psychoses with mixed psychotic and mood symptoms: are mixed psychoses associated with different neurobiological markers?

Bora

Yücel

Fornito

et al. 2008

Acta Psychiatr Scand

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“…Most recently, a study which compared paranoid, nonparanoid, and major depressive groups found patients with the paranoid subtype to be at increased risk for suicide (70). Thus it appears paranoia elevates patients' risk of suicidal ideation, but since the majority of studies combine all subtypes of schizophrenia, this theory is difficult to verify.…”

Section: Less Consistently Supported Risk Factorsmentioning

confidence: 99%

Suicide Among Patients with Schizophrenia: A Consideration of Risk and Protective Factors

Montross¹,

Zisook²,

Kasckow³

2005

Annals of Clinical Psychiatry

107

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“…Suspiciousness (or paranoia in its extreme) is a symptom that involves the exaggerated tendency to believe that other people intend harm, especially to oneself. It is believed to exist on a continuum (Combs et al, 2002) and is associated with anxiety and depression in the general population (Martin and Penn, 2001; Messias and Kirkpatrick, 2001; Ellett et al, 2003; von Gemmingen et al, 2003; Combs and Penn, 2004) and in schizophrenia-spectrum disorders (Kirkpatrick et al, 1996; Freeman and Garety, 1999; Messias et al, 2001; Candido and Romney, 2002; Goodwin et al, 2002; Drake et al, 2004; Spitznagel and Suhr, 2004; Huppert and Smith, 2005). Although rarely investigated, a better understanding of the role of suspiciousness in the context of anxiety and depression could foster improved definition, classification, and treatment of psychological disorders.…”

Section: Introductionmentioning

confidence: 99%

Neural correlates of suspiciousness and interactions with anxiety during emotional and neutral word processing

et al. 2014

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Suspiciousness is usually classified as a symptom of psychosis, but it also occurs in depression and anxiety disorders. Though how suspiciousness overlaps with depression is not obvious, suspiciousness does seem to overlap with anxious apprehension and anxious arousal (e.g., verbal iterative processes and vigilance about environmental threat). However, suspiciousness also has unique characteristics (e.g., concern about harm from others and vigilance about social threat). Given that both anxiety and suspiciousness have been associated with abnormalities in emotion processing, it is unclear whether it is the unique characteristics of suspiciousness or the overlap with anxiety that drive abnormalities in emotion processing. Event-related brain potentials were obtained during an emotion-word Stroop task. Results indicated that suspiciousness interacts with anxious apprehension to modulate initial stimulus perception processes. Suspiciousness is associated with attention to all stimuli regardless of emotion content. In contrast, anxious arousal is associated with a later response to emotion stimuli only. These results suggest that suspiciousness and anxious apprehension share overlapping processes, but suspiciousness alone is associated with a hyperactive early vigilance response. Depression did not interact with suspiciousness to predict response to emotion stimuli. These findings suggest that it may be informative to assess suspiciousness in conjunction with anxiety in order to better understand how these symptoms interact and contribute to dysfunctional emotion processing.

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Depression in paranoid and nonparanoid schizophrenic patients compared with major depressive disorder

Cited by 17 publications

References 56 publications

Major psychoses with mixed psychotic and mood symptoms: are mixed psychoses associated with different neurobiological markers?

Major psychoses with mixed psychotic and mood symptoms: are mixed psychoses associated with different neurobiological markers?

Suicide Among Patients with Schizophrenia: A Consideration of Risk and Protective Factors

Neural correlates of suspiciousness and interactions with anxiety during emotional and neutral word processing

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