Elucidating negative symptoms in the daily life of individuals in the early stages of psychosis

Abstract Background It remains poorly understood how negative symptoms are experienced in the daily lives of individuals in the early stages of psychosis. We aimed to investigate whether altered affective experience, anhedonia, social anhedonia, and asociality were more pronounced in individuals with an at-risk mental state for psychosis (ARMS) and individuals with first-episode psychosis (FEP) than in controls. Methods We used the experience sampling methodology (ESM) to assess negative symptoms, as they occurred in the daily life of 51 individuals with FEP and 46 ARMS, compared with 53 controls. Results Multilevel linear regression analyses showed no overall evidence for a blunting of affective experience. There was some evidence for anhedonia in FEP but not in ARMS, as shown by a smaller increase of positive affect (BΔat−risk v. FEP = 0.08, p = 0.006) as the pleasantness of activities increased. Against our expectations, no evidence was found for greater social anhedonia in any group. FEP were more often alone (57%) than ARMS (38%) and controls (35%) but appraisals of the social situation did not point to asociality. Conclusions Overall, altered affective experience, anhedonia, social anhedonia and asociality seem to play less of a role in the daily life of individuals in the early stages of psychosis than previously assumed. With the experience of affect and pleasure in daily life being largely intact, changing social situations and appraisals thereof should be further investigated to prevent development or deterioration of negative symptoms.

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Exploring the Psychometric Properties and the Factor Structure of the Calgary Depression Scale for Schizophrenia Across the Schizotypy Continuum

Assessment ◽

10.1177/1073191120986622 ◽

2021 ◽

pp. 107319112098662

Author(s):

Manel Monsonet ◽

Thomas R. Kwapil ◽

Neus Barrantes-Vidal

Keyword(s):

Psychometric Properties ◽

Factor Structure ◽

Negative Symptoms ◽

Daily Life ◽

Depression Scale ◽

Mental States ◽

First Episode ◽

Confirmatory Factor Analyses ◽

Episode Psychosis ◽

Confirmatory Factor

This study evaluated the psychometric properties and factor structure of the Calgary Depression Scale for Schizophrenia (CDSS) across different levels of the schizotypy continuum. A combined sample of high-schizotypy, at-risk mental states, and patients with first-episode psychosis was assessed for depression and other clinical and functional outcomes. Additionally, experience sampling methodology was used to assess depressive and psychotic-like experiences in daily life. The CDSS exhibited solid internal consistency, validity, and discrimination between depressed and nondepressed participants. Confirmatory factor analyses and the associations of the resulting factors with clinical and functional measures supported a two-factor structure that included general depression and guilt factors. Furthermore, both factors of the CDSS were differentially related to positive and negative symptoms of psychosis in daily life. The CDSS appears to have two underlying psychopathological dimensions and to be a reliable and valid measure for assessing depression across the schizotypy continuum.

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Longitudinal assessment of negative symptoms in early onset first episode psychosis

10.26226/morressier.5b681763b56e9b005965c031 ◽

2018 ◽

Author(s):

Maria Garcia Traverso

Keyword(s):

Early Onset ◽

Negative Symptoms ◽

First Episode Psychosis ◽

First Episode ◽

Longitudinal Assessment ◽

Episode Psychosis

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Conceptual disorganization and redistribution of resting state cortical hubs in untreated first episode psychosis: A 7T MRI study

10.31234/osf.io/rzvby ◽

2020 ◽

Author(s):

Avyarthana Dey ◽

Kara Dempster ◽

Michael Mackinley ◽

Peter Jeon ◽

Tushar Das ◽

...

Keyword(s):

Negative Symptoms ◽

Superior Temporal Gyrus ◽

Brain Regions ◽

First Episode Psychosis ◽

Cortical Reorganization ◽

First Episode ◽

Formal Thought Disorder ◽

Whole Brain ◽

Episode Psychosis ◽

Positive And Negative Symptoms

Background:Network level dysconnectivity has been studied in positive and negative symptoms of schizophrenia. Conceptual disorganization (CD) is a symptom subtype which predicts impaired real-world functioning in psychosis. Systematic reviews have reported aberrant connectivity in formal thought disorder, a construct related to CD. However, no studies have investigated whole-brain functional correlates of CD in psychosis. We sought to investigate brain regions explaining the severity of CD in patients with first-episode psychosis (FEPs) compared with healthy controls (HCs).Methods:We computed whole-brain binarized degree centrality maps of 31 FEPs, 25 HCs and characterized the patterns of network connectivity in the two groups. In FEPs, we related these findings to the severity of CD. We also studied the effect of positive and negative symptoms on altered network connectivity.Results:Compared to HCs, reduced hubness of a right superior temporal gyrus (rSTG) cluster was observed in the FEPs. In patients exhibiting high CD, increased hubness of a medial superior parietal (mSPL) cluster was observed, compared to patients exhibiting low CD. These two regions were strongly correlated with CD scores but not with other symptom scores.Discussion:Our observations are congruent with previous findings of reduced but not increased hubness. We observed increased hubness of mSPL suggesting that cortical reorganization occurs to provide alternate routes for information transfer.Conclusion:These findings provide insight into the underlying neural processes mediating the presentation of symptoms in untreated FEP. A longitudinal tracking of the symptom course will be useful to assess the mechanisms underlying these compensatory changes.

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P.553 Negative symptoms correlate with social functioning in first-episode psychosis: results from a cross-sectional study

European Neuropsychopharmacology ◽

10.1016/j.euroneuro.2020.09.405 ◽

2020 ◽

Vol 40 ◽

pp. S313-S314

Author(s):

L.A. Fernandes ◽

F. Ferreira ◽

I. Figueiredo ◽

R. Gasparinho ◽

F. Viegas ◽

...

Keyword(s):

Social Functioning ◽

Negative Symptoms ◽

Cross Sectional Study ◽

First Episode Psychosis ◽

First Episode ◽

Sectional Study ◽

Cross Sectional ◽

Episode Psychosis

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Patterns and predictors of hospitalisation in first-episode psychosis

The British Journal of Psychiatry ◽

10.1192/bjp.178.6.518 ◽

2001 ◽

Vol 178 (6) ◽

pp. 518-523 ◽

Cited By ~ 47

Author(s):

Attila Sipos ◽

Glynn Harrison ◽

David Gunnell ◽

Shazad Amin ◽

Swaran P. Singh

Keyword(s):

Negative Symptoms ◽

First Episode Psychosis ◽

Psychiatric Services ◽

First Episode ◽

Psychotic Episode ◽

Duration Of Untreated Illness ◽

Specialist Services ◽

Increased Risk ◽

Episode Psychosis

BackgroundLittle is known about predictors of hospitalisation in patients with first-episode psychosis.AimsTo identify the pattern and predictors of hospitalisation of patients with a first psychotic episode making their first contact with specialist services.MethodThree-year follow-up of a cohort of 166 patients with a first episode of psychosis making contact with psychiatric services in Nottingham between June 1992 and May 1994.ResultsEighty-eight (53.0%) patients were admitted within 1 week of presentation; 32 (19.3%) were never admitted during the 3 years of follow-up. Manic symptoms at presentation were associated with an increased risk of rapid admission and an increased overall risk of admission; negative symptoms and a longer duration of untreated illness had an increased risk of late admission.ConclusionsCommunity-oriented psychiatric services might only delay, rather than prevent, admission of patients with predominantly negative symptoms and a longer duration of untreated illness. First-episode studies based upon first admissions are likely to be subject to selection biases, which may limit their representativeness.

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Exploring the relationship between recency and frequency of cannabis use and diminished expression and apathy as two dimensions of negative symptoms in first episode psychosis. A one-year follow-up study

Schizophrenia Research ◽

10.1016/j.schres.2021.08.004 ◽

2021 ◽

Vol 236 ◽

pp. 89-96

Author(s):

Henrik Myhre Ihler ◽

Trine Vik Lagerberg ◽

Siv Hege Lyngstad ◽

Ingrid Melle ◽

Kristin Lie Romm

Keyword(s):

Negative Symptoms ◽

First Episode Psychosis ◽

Two Dimensions ◽

Cannabis Use ◽

First Episode ◽

Follow Up Study ◽

Episode Psychosis ◽

One Year ◽

The Relationship

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Characterising Usage of a Multicomponent Digital Intervention to Predict Treatment Outcomes in First-Episode Psychosis: A Cluster Analysis (Preprint)

10.2196/preprints.29211 ◽

2021 ◽

Author(s):

Shaunagh O'Sullivan ◽

Lianne Schmaal ◽

Simon D'Alfonso ◽

Yara J Toenders ◽

Lee Valentine ◽

...

Keyword(s):

Young People ◽

Treatment Outcomes ◽

Social Functioning ◽

Negative Symptoms ◽

User Profile ◽

First Episode Psychosis ◽

First Episode ◽

User Profiles ◽

Episode Psychosis ◽

Social Components

BACKGROUND Multicomponent digital interventions offer the potential for tailored and flexible interventions that aim to address high attrition rates and increase engagement, an area of concern in digital mental health. However, increased flexibility in usage makes it difficult to determine which components lead to improved treatment outcomes. OBJECTIVE This study aimed to identify user profiles on Horyzons, an 18-month digital relapse prevention intervention that incorporates therapeutic content and social networking, along with clinical, vocational and peer support, and to examine the predictive value of these user profiles for treatment outcomes. A secondary objective was to compare each user profile with young people receiving treatment as usual (TAU). METHODS Participants comprised 82 young people (16-27 years of age) with access to Horyzons and 84 receiving TAU, recovering from first-episode psychosis. Six-month usage data from the therapy and social networking components of Horyzons were used as features for K-means clustering for joint trajectories to identify user profiles. Social functioning, psychotic symptoms, depression and anxiety were assessed at baseline and six-month follow-up. General linear mixed models were used to examine the predictive value of user profiles for treatment outcomes, and between each user profile with TAU. RESULTS Three user profiles were identified based on system usage metrics including: (a) low usage; (b) maintained usage of social components; and (c) maintained usage of both therapy and social components. The maintained therapy and social group showed improvements in social functioning (F (2, 51) = 3.58; P = .04), negative symptoms (F (2, 51) = 4.45; P = .02) and overall psychiatric symptom severity (F (2, 50) = 3.23; P = .048) compared to the other user profiles. This group also showed improvements in social functioning (F (1, 62) = 4.68; P = .03), negative symptoms (F (1, 62) = 14.61; P = <.001) and overall psychiatric symptom severity (F (1, 63) = 5.66; P = .02) compared to TAU. Conversely, the maintained social group showed increases in anxiety compared to TAU (F (1, 57) = 7.65; P = .01). No differences were found between the low usage group and TAU on treatment outcomes. CONCLUSIONS Continued engagement with both therapy and social components might be key in achieving long-term recovery. Maintained social usage and low usage outcomes were broadly comparable to TAU, emphasizing the importance of maintaining engagement for improved treatment outcomes. Although the social network may be a key ingredient to increase sustained engagement, as users engaged with this more consistently, it should be leveraged as a tool to engage young people with therapeutic content to bring about social and clinical benefits.

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