The development of the Content of Attenuated Positive Symptoms Codebook for those at clinical high risk of psychosis

Marshall, Catherine; Falukozi, Erin; Albertin, Monica; Zhu, Haifeng; Addington, Jean

doi:10.1080/17522439.2011.626070

Cited by 9 publications

(16 citation statements)

References 23 publications

(42 reference statements)

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“…The Content of Attenuated Positive Symptoms (CAPS) (Marshall et al, 2011) codebook was used to code the content of perceptual abnormalities in CHR. Descriptions of symptoms were taken from vignettes (described above) written for each participant based on the SOPS assessment.…”

Section: Methodsmentioning

confidence: 99%

Perceptual abnormalities in clinical high risk youth and the role of trauma, cannabis use and anxiety

Lu¹,

Marshall²,

Cadenhead³

et al. 2017

Psychiatry Research

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Recent research suggests that perceptual abnormalities are a group of diverse experiences, which have been associated with trauma, cannabis use, and anxiety. Of the attenuated psychotic symptoms that are present in youth at clinical high risk (CHR) of psychosis, perceptual abnormalities tend to be one of the most frequently endorsed symptoms. However, very few studies have explored perceptual abnormalities and their relationships with the above environmental and affective factors in a CHR sample. Four hundred and forty one CHR individuals who met criteria for attenuated psychotic symptom syndrome (APSS) determined by the Structured Interview for Psychosis-risk Syndromes (SIPS) were assessed on the content of their perceptual abnormalities, early traumatic experience, cannabis use and self-reported anxiety. Logistic regression analyses suggested that both simple auditory and simple visual perceptual abnormalities were more likely to be reported by CHR who had early traumatic experiences, who are current cannabis users, and who have higher levels of anxiety. Multiple regression analysis revealed that only trauma and anxiety were independent predictors of both simple auditory and simple visual perceptual abnormalities. It is possible that examining subtypes of perceptual abnormalities in CHR leads to an improved understanding of the prevalence of such symptoms.

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Section: Methodsmentioning

confidence: 99%

Perceptual abnormalities in clinical high risk youth and the role of trauma, cannabis use and anxiety

Lu¹,

Marshall²,

Cadenhead³

et al. 2017

Psychiatry Research

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“…Raters code each item under each positive symptom as being present or absent. The development of the codebook is described in detail elsewhere (Marshall et al, 2012). …”

Section: Methodsmentioning

confidence: 99%

“…Four raters were trained using the CAPS codebook (Marshall et al, 2012) by CM and EF who helped develop the CAPS codebook. Raters were trained on each positive symptom separately as described below.…”

Section: Methodsmentioning

confidence: 99%

“…Only a few studies have examined psychotic symptom content and, unfortunately, in this literature there are methodological concerns and little replication (Marshall et al, 2012). Most studies address the content in delusions or auditory hallucinations with affective content being the most common.…”

Section: Introductionmentioning

confidence: 99%

“…Thomson et al (2010) reported that 15% of participants reported experiencing symptoms containing direct sexual content. Marshall et al, (2012) described the development of The Content of Attenuated Positive Symptoms (CAPS) Codebook which was developed to overcome methodological issues in the current literature. In the third study, which also tested the CAPS Codebook, Falukozi and Addington (2012) found significant positive correlations between increased trauma and feeling watched or followed and grandiose ideas related to status or power.…”

Section: Introductionmentioning

confidence: 99%

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The content of attenuated psychotic symptoms in those at clinical high risk for psychosis

Marshall

Denny

Cadenhead

et al. 2014

Psychiatry Research

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Recent research has started to focus on identifying individuals who are at clinical high risk of developing psychosis as a means to try and understand the predictors and mechanisms involved in the progress to a full psychotic episode. The aim of the current study was to provide an initial description and prevalence rates of specific content found within attenuated positive symptoms. The Content of Attenuated Positive Symptoms (CAPS) codebook was used by independent raters to determine the presence of content within a sample of written vignettes. Krippendorff's alpha was used to determine inter-rater reliability. Overall, the majority of items fell in or above an acceptable range of reliability. There was heterogeneity present in the types of content endorsed. However, the most commonly endorsed items included being perplexed by reality, increased hypervigilence, being gifted, hearing indistinct and distinct sounds, seeing figures or shadows, something touching the individual, and unpleasant smells. The use of the CAPS codebook is a reliable way to code the content of attenuated positive symptoms. Identifying and monitoring the presence of certain content may provide insight into the presence of other comorbid issues and the potential for future conversion.

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Violent and Aggressive Behavior in Individuals at Risk for Psychosis: Prevalence, Mechanisms, Assessment, Management, and Prevention

Fekih‐Romdhane

Hallit

Cheour

et al. 2022

Handbook of Anger, Aggression, and Violence

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The development of the Content of Attenuated Positive Symptoms Codebook for those at clinical high risk of psychosis

Cited by 9 publications

References 23 publications

Perceptual abnormalities in clinical high risk youth and the role of trauma, cannabis use and anxiety

Perceptual abnormalities in clinical high risk youth and the role of trauma, cannabis use and anxiety

The content of attenuated psychotic symptoms in those at clinical high risk for psychosis

Violent and Aggressive Behavior in Individuals at Risk for Psychosis: Prevalence, Mechanisms, Assessment, Management, and Prevention

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