Psychotic-like experiences as a co-occurring psychopathological indicator of multi-dimensional affective symptoms: Findings from a cross-sectional survey among college students

Longitudinal trajectories of psychotic-like experiences influence adolescent suicidal ideation: The mediating role of depressive symptoms

BACKGROUND

Psychotic-like experiences (PLEs) are strongly associated with poor mental health among adolescents. This study aims to investigate distinct longitudinal trajectories of the PLEs and their relationship to suicidal ideation (SI), as well as to evaluate the mediating effect of depressive symptoms on this link.

METHODS

A total of 7529 Chinese adolescents were surveyed on PLEs online during April 21 to May 12, 2021 (Time 1, T1), December 17 to 26, 2021 (Time 2, T2), and May 17 to June 5, 2022 (Time 3, T3). Depressive symptoms and SI were assessed at T1 and T3.

RESULTS

The prevalence of frequent PLEs across the three surveys was 13.5 %, 13.2 %, and 11.0 %, respectively. Five PLEs trajectories were identified: resistance (74.4 % of the sample), recovery (9.2 %), delayed-dysfunction (6.6 %), relapsing/remitting (7.0 %), and chronic-dysfunction (2.8 %). Adolescents in recovery, delayed-dysfunction, relapsing/remitting, and chronic-dysfunction trajectories compared with those in the resistant group were all more likely to experience SI at T3 after adjusting for a wide range of covariates. Depressive symptoms partially mediated the effects of PLEs trajectories (relative to the resistance trajectory) on SI (95 % CIs: 0.07-0.13, 0.37-0.48, and 0.28-0.41 for relapsing/remitting, delayed-dysfunction, and chronic-dysfunction trajectories, respectively).

CONCLUSIONS

PLEs are common among adolescents and have heterogeneity of change patterns. The association between PLEs trajectories and SI is partially mediated by depressive symptoms. Timely assessment and targeted interventions for specific PLEs are necessary to reduce the incidence of mental disorders.

Predicting psychotic-like experiences among adolescents: the interplay of childhood trauma, cognitive biases, neuroticism, and depression

BACKGROUND

Childhood trauma, cognitive biases, neuroticism, and depression have emerged as crucial risk markers for psychotic-like experiences (PLEs). However, the interplay among these variables in influencing the risk of PLEs remains largely unexplored. This study aims to investigate the effect of the complex relationship between childhood trauma, cognitive biases, neuroticism, and depression on the risk of PLEs among adolescents.

METHODS

A total of 4,087 adolescents from three senior high schools were recruited for this study. We utilized the Community Assessment of Psychic Experiences to measure PLEs, the Childhood Trauma Questionnaire to assess childhood trauma, the Davos Assessment of Cognitive Biases scale to evaluate cognitive biases, the neuroticism subscale of the Neuroticism-Extraversion-Openness Personality Inventory to assess neuroticism, and the Patient Health Questionnaire to measure depression. Psychiatric diagnoses were screened using a self-report questionnaire.

RESULTS

Childhood trauma, cognitive biases, neuroticism and depression were all associated with an increased risk of PLEs. Participants who had experienced childhood trauma in conjunction with depression, cognitive biases, or neuroticism exhibited a significantly higher risk of endorsing PLEs compared to those who had solely encountered childhood trauma. Path analysis revealed that cognitive biases, neuroticism and depression are significant mediators of the relationship between childhood trauma and PLEs. The model explained 44.7% of the variance in PLEs.

CONCLUSIONS

Our study highlights cognitive biases, neuroticism, and depression as key mediators linking childhood trauma to PLEs, recognizing the complex interplay among these factors is crucial and should be integrated into clinical screening and therapeutic strategies to mitigate the risk of PLEs.

A systematic review of studies using network analysis to assess dynamics of psychotic-like experiences in community samples

Several studies have used a network analysis to recognize the dynamics and determinants of psychotic-like experiences (PLEs) in community samples. Their synthesis has not been provided so far. A systematic review of studies using a network analysis to assess the dynamics of PLEs in community samples was performed. Altogether, 27 studies were included. The overall percentage ranks of centrality metrics for PLEs were 23.5% for strength (20 studies), 26.0% for betweenness (5 studies), 29.7% for closeness (6 studies), 26.9% for expected influence (7 studies), and 29.1% for bridge expected influence (3 studies). Included studies covered three topics: phenomenology of PLEs and associated symptom domains (14 studies), exposure to stress and PLEs (7 studies), and PLEs with respect to suicide-related outcomes (6 studies). Several other symptom domains were directly connected to PLEs. A total of 6 studies investigated PLEs with respect to childhood trauma (CT) history. These studies demonstrated that PLEs are directly connected to CT history (4 studies) or a cumulative measure of environmental exposures (1 study). Moreover, CT was found to moderate the association of PLEs with other symptom domains (1 study). Two studies that revealed direct connections of CT with PLEs also found potential mediating effects of cognitive biases and general psychopathology. PLEs were also directly connected to suicide-related outcomes across all studies included within this topic. The findings imply that PLEs are transdiagnostic phenomena that do not represent the most central domain of psychopathology in community samples. Their occurrence might be associated with CT and suicide risk.

The developmental and dynamic relationship between psychopathology and psychotic-like experiences trajectories in children and adolescents

BACKGROUND

The previous cross-sectional and prospective studies have reported that psychopathology was associated with the occurrence of psychotic-like experiences (PLEs). However, few of these studies have examined this longitudinal association considering the different developmental trajectories of PLEs, as well as the growth or changes of psychopathology over time.

METHODS

Four waves PLEs and psychopathology assessments from Adolescent Brain Cognitive Development (ABCD) study were used. The latent class growth modeling (LCGM) and latent growth curve modeling (LGCM) was used to assess latent PLEs class (group) and time-varying psychopathology, respectively. Lastly, the multinomial logistic regression model was used to examined the dynamic and developmental relationship between intercept/slope in psychopathology and different PLEs trajectories.

RESULTS

Three PLEs trajectory classes were confirmed: low decreasing PLEs (84.7 %), persistent PLEs (7.01 %) and high decreasing PLEs trajectories (8.29 %). We also found that the intercept of anxious/depressed problems and total problems scales and the slope of social problems were associated with the persistent PLEs trajectory compared with the low decreasing PLEs trajectories, indicating both the early onset and the growth of psychopathology over time are needed to be clinical attention.

LIMITATIONS

The CBCL as the sole outcome measure for psychopathology and a widely acknowledged definition for PLEs is lacking. We lacked the mechanisms underlying the current results.

CONCLUSION

These longitudinal and dynamic results suggest that future intervention studies aimed at preventing the transition from persistent PLEs to psychotic disorders can focus on both the early onset and the growth of psychopathology over time.

A longitudinal network of psychotic-like experiences, depressive and anxiety symptoms, and adverse life events: a cohort study of 3,358 college students

AIMS

Psychotic-like experiences (PLEs), especially for persistent PLEs, are highly predictive of subsequent mental health problems. Hence, it is crucial to explore the psychopathological associations underlying the occurrence and persistence of PLEs. This study aimed to explore the above issues through a longitudinal dynamic network approach among PLEs and psychological and psychosocial factors.

METHODS

A total of 3,358 college students completed two waves of online survey (from Oct 2021 to Oct 2022). Socio-demographic information was collected at baseline, and PLEs, depressive and anxiety symptoms, and adverse life events were assessed in both waves. Cross-lagged panel network analyses were used to establish networks among individuals with baseline PLEs as well as those without.

RESULTS

At baseline, 455(13.5%) students were screened positive for PLEs. Distinct dynamic network structures were revealed among participants with baseline PLEs and those without. While 'psychomotor disturbance' had the strongest connection with PLEs in participants with baseline PLEs, 'suicide/self-harm' was most associated with PLEs in those without. Among all three subtypes of PLEs, bizarre experiences and persecutory ideation were the most affected nodes by other constructs in participants with baseline PLEs and those without, respectively. Additionally, wide interconnections within the PLEs construct existed only among participants without baseline PLEs.

CONCLUSIONS

The study provides time-variant associations between PLEs and depressive symptoms, anxiety symptoms, and adverse life events using network structures. These findings help to reveal the crucial markers of the occurrence and persistence of PLEs, and shed high light on future intervention aimed to prevent and relieve PLEs.

Resilience buffers the association between psychotic-like experiences and suicide risk: a prospective study from a non-clinical sample

BACKGROUND

Several studies have reported that psychotic-like experiences are associated with low levels of resilience and increased suicide risk. However, it remains unknown as to whether resilience mediates or moderates the association between psychotic-like experiences and suicide risk. Therefore, in this study, we aimed to explore the moderating and mediating effect of resilience in the association between psychotic-like experiences and suicide risk.

METHODS

A total of 1100 non-clinical, young adults (aged 18 - 35 years) with a negative history of psychiatric treatment were enrolled. Participants were recruited by the snowball sampling methodology through advertisements posted in the online platform. They were followed-up for about 7 months. Variables of interest were recorded using self-reports. Psychopathological assessment was conducted using the Prodromal Questionnaire-16, the Patient Health Questionnaire-9, the Generalized Anxiety Disorder-7, the Traumatic Experience Checklist, the Childhood Experience of Care and Abuse Questionnaire, the Cannabis Problems Questionnaire, the Connor-Davidson Resilience Scale-10, and the Mini-International Neuropsychiatric Interview. The STROBE statement guidelines were followed.

RESULTS

The moderation analysis revealed that higher levels of psychotic-like experiences and related distress at baseline were associated with significantly higher suicide risk at the follow-up after adjustment for baseline sociodemographic characteristics, depressive and anxiety symptoms, a history of childhood trauma, and problematic cannabis use. The interaction between follow-up resilience and distress related to baseline psychotic-like experiences was significantly and negatively associated with suicide risk at the follow-up. Specifically, the correlation between the level of distress related to psychotic-like experiences and suicide risk was significant and positive only in participants with lower levels of resilience. This interaction did not reach statistical significance for the baseline level of psychotic-like experiences. No significant mediating effect of the follow-up resilience level in the association between baseline psychotic-like experiences and the follow-up suicide risk was found.

CONCLUSIONS

Findings from the present study indicate that resilience might protect against suicide risk in people with psychotic-like experiences. These findings could be applied in the formulation of early intervention strategies aimed at mitigating the risk of suicide. Future studies need to explore the effects of interventions targeting resilience for individuals with psychotic-like experiences.

Psychotic experiences are associated with greater impairment among students in higher education with depression and anxiety in the United States

BACKGROUND

Psychotic experiences are associated with depression and anxiety, but emerging research suggests that psychotic experiences are also associated with impairment within psychopathology.

METHODS

We analyzed a subsample from the Healthy Minds Study (2020-2021; N = 91,435) and used multivariable logistic regression to examine the associations between psychotic experiences and impairment resulting from depression and anxiety, adjusting for age, gender, and race/ethnicity.

RESULTS

Around one-in-five students with depression or anxiety impairment reported 12-month psychotic experiences. Psychotic experiences were associated with greater odds of depression impairment and anxiety impairment, adjusting for age, gender, race/ethnicity. Odds ratios varied depending on the type of psychotic experience and the outcomes.

CONCLUSION

Psychotic experiences are associated with greater odds of impairment resulting from depression and anxiety. In clinical practice, psychotic experiences may serve as a useful marker of assessing impairment resulting from psychopathology.

Understanding pathways from narcissistic grandiosity to psychotic-like experiences: Insights from the network analysis

It has been shown that narcissistic grandiosity and psychotic-like experiences (PLEs) may share the common psychological mechanisms, including impairments of metacognition, social cognition, cognitive biases, emotion regulation through fantasizing and dissociation. However, it remains unknown as to whether these mechanisms are associated with the occurrence of PLEs in people with narcissistic grandiosity. Therefore, in the present study, we approached a network analysis in order to investigate pathways from narcissistic grandiosity to PLEs taking into consideration the mediating effect of common psychological mechanisms. The study was based on a non-clinical sample of 1647 individuals, aged 18-35 years. Data were collected through self-reports administered in the online survey. There were no direct connections between narcissistic grandiosity and PLEs. However, four pathways connecting narcissistic grandiosity and PLEs through the effect of one mediating psychological mechanism were identified. These mechanisms covered external attribution biases, the need to control thoughts, social cognition, and emotion regulation through fantasizing. Among them, the shortest pathway led through the effects of external attribution biases. Age, gender, education and lifetime history of psychiatric treatment were included as covariates in a network analysis. Findings from this study indicate that higher levels of external attributions, the need to control thoughts, impairments of social cognition, and emotion regulation strategies based on fantasizing might be associated with the development of PLEs in people showing narcissistic grandiosity. These observations indicate potential targets for therapeutic approaches that aim to reduce the risk of developing comorbid psychopathology in people with grandiose narcissism traits.

Dimensions of psychopathology associated with psychotic-like experiences: Findings from the network analysis in a nonclinical sample

BACKGROUND

Psychotic-like experiences (PLEs) are associated with a variety of psychopathological symptoms. However, it remains unknown which dimensions of psychopathology are most closely related to the occurrence of PLEs. In this study, we aimed to analyze the association of PLEs with various domains of psychopathology.

METHODS

A total of 1100 nonclinical adults (aged 18-35 years, 51.4% females) with a negative history of psychiatric treatment were surveyed. Assessment of psychopathology was performed using self-reports. Symptoms associated with PLEs were explored as continuous variables and based on clinically relevant thresholds using two separate network analyses.

RESULTS

In both network analyses, PLEs were directly connected to obsessive-compulsive disorder (OCD) symptoms, manic symptoms, depressive symptoms, and attention-deficit/hyperactivity disorder (ADHD) symptoms. Anxiety symptoms were associated with PLEs only in the network based on threshold scores. Importantly, edge weight for the connection of PLEs and OCD symptoms was significantly higher compared to edge weights of all other direct connections of PLEs with psychopathology in both networks. Edge weight for the connection between PLEs and manic symptoms was significantly higher compared to edge weights for direct connections of PLEs with depressive and ADHD symptoms in the network based on continuous scores of psychopathological symptoms. Edge weights of direct connections of PLEs with depressive, anxiety, and ADHD symptoms did not differ significantly in both networks.

CONCLUSIONS

Our findings indicate that PLEs are associated with multiple domains of psychopathology. However, these phenomena are most strongly associated with OCD symptoms regardless of their severity threshold.