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2.
Sci Rep ; 14(1): 8173, 2024 04 08.
Artículo en Inglés | MEDLINE | ID: mdl-38589562

RESUMEN

The persecutory delusion is the most common symptom of psychosis, yet its underlying neurobiological mechanisms are poorly understood. Prior studies have suggested that abnormalities in medial temporal lobe-dependent associative learning may contribute to this symptom. In the current study, this hypothesis was tested in a non-clinical sample of young adults without histories of psychiatric treatment (n = 64), who underwent classical Pavlovian fear conditioning while fMRI data were collected. During the fear conditioning procedure, participants viewed images of faces which were paired (the CS+) or not paired (the CS-) with an aversive stimulus (a mild electrical shock). Fear conditioning-related neural responses were measured in two medial temporal lobe regions, the amygdala and hippocampus, and in other closely connected brain regions of the salience and default networks. The participants without persecutory beliefs (n = 43) showed greater responses to the CS- compared to the CS+ in the right amygdala and hippocampus, while the participants with persecutory beliefs (n = 21) failed to exhibit this response. These between-group differences were not accounted for by symptoms of depression, anxiety or a psychosis risk syndrome. However, the severity of subclinical psychotic symptoms overall was correlated with the level of this aberrant response in the amygdala (p = .013) and hippocampus (p = .033). Thus, these findings provide evidence for a disruption of medial temporal lobe-dependent associative learning in young people with subclinical psychotic symptoms, specifically persecutory thinking.


Asunto(s)
Amígdala del Cerebelo , Miedo , Adulto Joven , Humanos , Adolescente , Miedo/fisiología , Amígdala del Cerebelo/diagnóstico por imagen , Amígdala del Cerebelo/fisiología , Condicionamiento Clásico/fisiología , Encéfalo , Hipocampo/diagnóstico por imagen , Hipocampo/fisiología , Imagen por Resonancia Magnética
3.
J Affect Disord ; 348: 78-87, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38110156

RESUMEN

BACKGROUND: Borderline personality disorder (BPD) is thought to involve aberrant social learning, including impaired revision of social interpretations with new evidence (social interpretation inflexibility). However, this topic has received little empirical attention outside of specific literatures, such as moral inference or behavioral economics. Further, the contribution of comorbid depression to BPD-related interpretation inflexibility has not yet been assessed. METHODS: In two independent samples (Study 1: N = 213; Study 2: N = 210, oversampled for BPD features), we assessed the associations between BPD symptoms, depressive symptoms, and task-based measures of social interpretation flexibility. RESULTS: We found that BPD symptoms, particularly volatility of identity and relationships, were associated with less revision of social interpretations with both positive and negative evidence. Meanwhile, depressive symptoms were associated with a pattern of less revision of social interpretations with positive versus negative information. LIMITATIONS: The use of cross-sectional, crowdsourced samples limits causal interpretations. Translation to clinical populations should be assessed in future studies. CONCLUSIONS: Results suggest that inflexible social interpretations across valences may be a feature of BPD-related pathology, and could be connected to symptoms involving volatility in social contexts. Future studies should investigate whether treatments geared toward increasing the flexibility of social interpretations are effective in treating BPD symptoms, especially those involving interpersonal difficulties.


Asunto(s)
Trastorno de Personalidad Limítrofe , Humanos , Trastorno de Personalidad Limítrofe/epidemiología , Estudios Transversales , Medio Social , Comorbilidad
4.
PLoS One ; 18(10): e0282220, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37815988

RESUMEN

Discrimination is associated with mental health problems. While prior research has demonstrated the significance of emotion regulation in explaining the onset and development of discrimination-related anxiety, few studies investigated this dynamic with cognitive flexibility among sexual and/or racial minority individuals. The current study incorporated cognitive flexibility to investigate its potential buffering effects on discrimination-related anxiety. 221 individuals, 37.6% of whom (n = 83) identified as sexual and/or racial minorities, responded to an online questionnaire about their levels of cognitive flexibility and emotion regulation, perceived discrimination, and anxiety. Moderated mediation analyses were conducted with these variables. Our findings indicated that emotion regulation difficulty (ERD) mediated the relationship between discrimination and anxiety, while cognitive flexibility had a strong moderating effect on the relationship between ERD and anxiety. These results suggested new research directions and implied the therapeutic potential of advancing cognitive flexibility skills with emotion regulation training in depression and anxiety intervention and treatments. Future research is needed to investigate cognitive flexibility as a transdiagnostic mechanism underlying the onset and development of anxiety, to potentially lead to novel prevention or intervention for marginalized people facing additional stressors like discrimination.


Asunto(s)
Regulación Emocional , Salud Mental , Humanos , Ansiedad/psicología , Trastornos de Ansiedad/psicología , Cognición
5.
Behav Res Ther ; 167: 104360, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37413786

RESUMEN

Cognitive inflexibility has been linked to difficulties in revising paranoid beliefs, whereas cognitive flexibility may protect against the development and maintenance of paranoid beliefs by allowing for troubleshooting in light of available evidence. While less discussed in the context of paranoia research, better regulation of affective states may reduce the likelihood of biased beliefs developing in the first place, reducing the burden on belief updating mechanisms. The present study hypothesized that high cognitive flexibility and strong emotion regulation ability may act as a reciprocal protective shield against the risk associated with lower ability in the other domain. Participants were recruited from the general population (N = 221) to complete the Ambiguous Interpretation Inflexibility Task, as well as self-report measures for paranoia and emotion regulation ability. The results show an interaction between cognitive flexibility and emotion regulation ability as related to less severe paranoia. Better emotion regulation ability is associated with lower paranoia in individuals with lower cognitive flexibility, whereas higher cognitive flexibility is associated with less severe paranoia in individuals with greater emotion regulation difficulties. These findings highlight the importance of emotion regulation in early interventions of paranoia, especially how emotion regulation relates to known cognitive vulnerabilities such as inflexibility.


Asunto(s)
Regulación Emocional , Trastornos Paranoides , Humanos , Trastornos Paranoides/psicología , Emociones/fisiología , Autoinforme , Cognición
6.
Cogn Emot ; 37(1): 137-146, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36607322

RESUMEN

Depression is associated with a bias toward negative interpretations of social situations and resistance to integrating evidence consistent with positive interpretations. These features could contribute to social isolation by generating negative expected value for future social interactions. The present study examined potential associations between depressive symptoms and positive (i.e. trust and liking) and negative (i.e. distrust and disliking) social impression formation of individuals who previously appeared in positive or negative contexts. Participants (N = 213) completed the Interpretation Inflexibility Task and were subsequently asked to provide social impression ratings of characters from each scenario type of the task (i.e. positive and negative) as well as characters not previously encountered. In examining social impression formation, higher severity of depressive symptoms was associated with higher negative social impression ratings regardless of scenario outcome, as well as lower positive social impression ratings, but only for characters who previously appeared in positive contexts. Those higher in depression also rated novel characters as significantly more unlikeable and untrustworthy and to an equivalent degree as the characters previously encountered. These findings suggest a role of negative interpretation bias and inflexibility in contributing to negative evaluations of potential social interaction partners in depression.


Asunto(s)
Actitud , Depresión , Relaciones Interpersonales , Prejuicio , Conducta Social , Humanos , Depresión/psicología , Amigos/psicología , Prejuicio/psicología , Confianza/psicología , Adulto , Estados Unidos , Correlación de Datos , Análisis de Regresión
7.
Psychol Med ; 53(8): 3490-3499, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35227342

RESUMEN

BACKGROUND: Prevention programs that are 'transdiagnostic' may be more cost-effective and beneficial, in terms of reducing levels of psychopathology in the general population, than those focused on a specific disorder. This randomized controlled study evaluated the efficacy of one such intervention program called Resilience Training (RT). METHODS: College students who reported mildly elevated depressive or subclinical psychotic symptoms ('psychotic experiences' (PEs)) (n = 107) were randomized to receiving RT (n = 54) or to a waitlist control condition (n = 53). RT consists of a four-session intervention focused on improving resilience through the acquisition of mindfulness, self-compassion, and mentalization skills. Measures of symptoms and these resilience-enhancing skills were collected before and after the 4-week RT/waitlist period, with a follow-up assessment 12-months later. RESULTS: Compared to the waitlist control group, RT participants reported significantly greater reductions in PEs, distress associated with PEs, depression, and anxiety, as well as significantly greater improvements in resilience, mindfulness, self-compassion, and positive affect, following the 4-week RT/waitlist period (all p < 0.03). Moreover, improvements in resilience-promoting skills were significantly correlated with symptom reductions (all p < 0.05). Lastly, the RT-related reductions in PEs and associated distress were maintained at the 12-month follow-up assessment. CONCLUSIONS: RT is a brief, group-based intervention associated with improved resilience and reduced symptoms of psychopathology, with sustained effects on PEs, in transdiagnostically at-risk young adults. Follow-up studies can further assess the efficacy of RT relative to other interventions and test whether it can reduce the likelihood of developing a serious mental illness.


Asunto(s)
Ansiedad , Trastornos Psicóticos , Humanos , Adulto Joven , Ansiedad/prevención & control , Trastornos de Ansiedad , Estudiantes , Estudios de Seguimiento
8.
Psychol Med ; 53(8): 3644-3651, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35144716

RESUMEN

BACKGROUND: While comorbidity of clinical high-risk for psychosis (CHR-P) status and social anxiety is well-established, it remains unclear how social anxiety and positive symptoms covary over time in this population. The present study aimed to determine whether there are more than one covariant trajectory of social anxiety and positive symptoms in the North American Prodrome Longitudinal Study cohort (NAPLS 2) and, if so, to test whether the different trajectory subgroups differ in terms of genetic and environmental risk factors for psychotic disorders and general functional outcome. METHODS: In total, 764 CHR individuals were evaluated at baseline for social anxiety and psychosis risk symptom severity and followed up every 6 months for 2 years. Application of group-based multi-trajectory modeling discerned three subgroups based on the covariant trajectories of social anxiety and positive symptoms over 2 years. RESULTS: One of the subgroups showed sustained social anxiety over time despite moderate recovery in positive symptoms, while the other two showed recovery of social anxiety below clinically significant thresholds, along with modest to moderate recovery in positive symptom severity. The trajectory group with sustained social anxiety had poorer long-term global functional outcomes than the other trajectory groups. In addition, compared with the other two trajectory groups, membership in the group with sustained social anxiety was predicted by higher levels of polygenic risk for schizophrenia and environmental stress exposures. CONCLUSIONS: Together, these analyses indicate differential relevance of sustained v. remitting social anxiety symptoms in the CHR-P population, which in turn may carry implications for differential intervention strategies.


Asunto(s)
Trastornos Psicóticos , Esquizofrenia , Humanos , Estudios Longitudinales , Factores de Riesgo , Síntomas Prodrómicos , Ansiedad/epidemiología
10.
J Affect Disord ; 309: 131-140, 2022 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-35472478

RESUMEN

BACKGROUND: Individuals with bipolar I disorder (BD) have difficulty inhibiting context-inappropriate responses. The neural mechanisms contributing to these difficulties, especially in emotional contexts, are little understood. This study aimed to inform mechanisms of impaired impulsivity control in response to emotion in BD, and whether response inhibition indices are altered to a similar degree in schizophrenia spectrum disorders (SZ). We examined alterations to behavioral performance and event-related potentials (ERPs) during inhibition to affective stimuli in BD, relative to healthy control participants (HC) and SZ. METHODS: Sixty-six participants with BD, 32 participants with SZ, and 48 HC completed a Go/No-Go task with emotional face stimuli while electroencephalography was recorded. Behavioral signal detection metrics (perceptual sensitivity, response bias) and ERPs (N200, P300) were compared across groups. RESULTS: Relative to HC, participants with BD showed reduced (1) discrimination of Go vs. No-Go stimuli (i.e., emotional vs. neutral faces), and (2) P300 amplitudes elicited by emotional faces. Results similarly extended to SZ: BD and SZ groups did not differ on behavioral performance nor ERP amplitudes. LIMITATIONS: Aspects of the Go/No-Go task design may have limited findings, and medication effects on ERP amplitudes in patient samples cannot be fully ruled out. CONCLUSIONS: Findings suggest the difficulty participants with BD and SZ experienced on the current affective response inhibition task lied largely in discriminating between facial expressions. Difficulties with discriminating emotional from neutral expressions may contribute to difficulties with appropriate behavioral responding in social-affective contexts for individuals with BD and SZ.


Asunto(s)
Trastorno Bipolar , Esquizofrenia , Trastorno Bipolar/psicología , Emociones/fisiología , Potenciales Evocados/fisiología , Expresión Facial , Humanos , Esquizofrenia/diagnóstico
11.
J Res Adolesc ; 31(3): 500-516, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34448307

RESUMEN

The COVID-19 pandemic has the potential to profoundly affect youths' mental health. Understanding predictors of affective responding to the pandemic is critical for prevention and intervention efforts. This study examines emotion regulation as an important predictor of youth's changes in positive and negative affect. The present study of 115 participants (62 girls, Mage  = 11.77) explores the relation between pre-existing emotion regulation strategies, as measured by multi-week daily diaries pre-COVID, and youths' mean positive and negative affect levels and variability during a 28-day period amidst the pandemic, while including COVID-related worries and isolation as important moderators. The findings provide important insight into interactions between pre-existing vulnerabilities and COVID-related stressors in predicting affective adjustment in youth.


Asunto(s)
COVID-19 , Regulación Emocional , Adolescente , Niño , Femenino , Humanos , Salud Mental , Pandemias , SARS-CoV-2
12.
Psychiatr Res Clin Pract ; 3(4): 163-171, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-36101655

RESUMEN

Objectives: While co-morbid depression is associated with poor functional outcome among patients with schizophrenia, whether depression similarly predicts poorer outcomes in individuals at clinical high-risk for psychosis (CHR-P) is not clear. The present study aimed to examine depressive symptoms in relation to long-term global functional outcomes in the North American Prodrome Longitudinal Study cohort (NAPLS2). Methods: CHR individuals were evaluated clinically at baseline and at 12- and 24-month follow-ups for depressive and prodromal symptom severity as well as general functioning. Regression models were built to investigate whether baseline positive and depressive symptom scores predicted longitudinal improvement in global functioning. Results: A total of 406 CHR individuals completed the 12-month follow-up assessment and 259 CHR individuals completed the 24-month assessment. Baseline depressive symptoms in the CHR-P population were found to predict better global functional outcomes at 2 years. Furthermore, the degree of recovery of depressive symptoms in the first year following baseline completely mediated the association between depressive symptoms at baseline and functional improvement at 2 years. Conclusions: Presence of affective symptoms within the CHR-P population has different implications for prognosis compared with patients with schizophrenia. The present findings support the view that among those at risk for psychosis, depressive symptoms at baseline predict a more favorable course of functional recovery, and highlight the potential importance of treating co-occurring depressive symptoms at an early stage of psychosis risk.

13.
Psychopathology ; 53(2): 95-102, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32623434

RESUMEN

INTRODUCTION: Within the psychosis continuum that includes schizophrenia (SZ) at the severe end and the general population at the mild end, anxiety may negatively impact social functioning more than psychosis or psychotic-like experiences (PLE). This claim is supported by previous reports that show anxiety mediates the relationship between psychosis and social functioning in SZ, suggesting anxiety is critical to social functioning in SZ. Yet no studies have examined a similar relationship in the general population, and this is important because people with PLE are at a significantly higher risk for developing full-blown psychosis. METHODS: Similar to those with SZ, we predicted heightened anxiety would mediate the relationship between PLE, as measured by The -Oxford-Liverpool Inventory of Feelings and Experiences, and social functioning, as measured by Social Adjustment Scale - Self-Report, in the general population. RESULTS: Indeed, the current study showed that the relationship between PLE and social functioning was mediated by anxiety (z = 7.81, p < 0.001) within an unselected crowdsourcing sample representative of the general population (Amazon M-Turk; n = 197, mean age 32.38 years). CONCLUSION: Taken together with previous reports, the current findings suggest that anxiety is a functionally relevant dimension across the psychosis continuum and improving anxiety may improve social functioning across this continuum.


Asunto(s)
Ansiedad/psicología , Trastornos Psicóticos/epidemiología , Ajuste Social , Adulto , Femenino , Humanos , Masculino , Trastornos Psicóticos/psicología
14.
PLoS One ; 15(3): e0230258, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32168324

RESUMEN

Eye contact perception-the ability to accurately and efficiently discriminate others' gaze directions-is critical to understanding others and functioning in a complex social world. Previous research shows that it is affected in multiple neuropsychiatric disorders accompanied by social dysfunction, and understanding the cognitive processes giving rise to eye contact perception would help advance mechanistic investigations of psychopathology. This study aims to validate an online, psychophysical eye contact detection task through which two constituent cognitive components of eye contact perception (perceptual precision and self-referential tendency) can be derived. Data collected from a large online sample showed excellent test-retest reliability for self-referential tendency and moderate reliability for perceptual precision. Convergence validity was supported by correlations with social cognitive measures tapping into different aspects of understanding others. Hierarchical regression analyses revealed that perceptual precision and self-referential tendency explained unique variance in social cognition, suggesting that they measure unique aspects of related constructs. Overall, this study provided support for the reliability and validity of the eye contact perception metrics derived using the online Eye Contact Detection Task. The value of the task for future psychopathology research was discussed.


Asunto(s)
Movimientos Oculares/fisiología , Fijación Ocular/fisiología , Percepción Social , Percepción Visual/fisiología , Adulto , Cognición/fisiología , Femenino , Humanos , Relaciones Interpersonales , Masculino , Neuropsiquiatría/tendencias , Conducta Social , Adulto Joven
15.
Front Psychiatry ; 10: 1030, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-32158406

RESUMEN

PURPOSE: Early adulthood represents one period of increased risk for the emergence of a serious mental illness. The college campus provides a unique opportunity to assess and monitor individuals in this at-risk age group. However, there are no validated early detection programs that are widely implemented on college campuses. In an effort to address this gap, we designed and tested an early detection and prevention program tailored to college students. A transdiagnostic approach was employed because of evidence for shared risk factors across major mental illnesses. DESIGN: Single arm, prospective study evaluating outcomes following a 4-week intervention. METHOD: Three in-person mental health screenings were conducted on the campus of one university. Undergraduate students with at least mildly elevated, self-reported levels of depressive or subclinical psychotic symptoms, who were not receiving treatment for these symptoms, were invited to participate in a 4-session workshop focused on increasing self- and other- awareness and emotion regulation using established mindfulness, self-compassion, and mentalization principles and experiential exercises. Symptoms, resilience-promoting capacities, and aspects of social functioning were assessed pre- and post- intervention. RESULTS: 416 students were screened and a total of 63 students participated in the workshop. 91% attended at least 3 of the 4 sessions. The majority of participants found the workshop interesting and useful and would recommend it to a friend. Significant pre-to-post reductions in symptoms (depression, anxiety, and subclinical psychotic symptoms, ps < 0.004) and improvements in resilience-promoting capacities (self-compassion and self-efficacy, ps < 0.006) and indices of social functioning (social motivation, activity, and a measure of comfort with the physical presence of others, ps < 0.04) were observed. Moreover, the significant increases in resilience-promoting capacities correlated with the reductions in affective symptoms (ps < 0.03). CONCLUSIONS: These findings suggest that an on-campus mental health screening and early intervention program is feasible, acceptable, and may be associated with improvements in resilience-related capacities and symptom reductions in young adults with non-impairing, subclinical symptoms of psychopathology. Follow-up work will determine whether this program can improve both shorter and longer-term mental health and functional outcomes in this at-risk population.

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