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BACKGROUND: Spite sensitivity provides a valuable construct to understand persecutory ideation and its underlying neural mechanisms. We examined the relationship between persecution and spite sensitivity in psychosis to identify their neural substrates. METHODS: In a 3T magnetic resonance imaging scanner, 49 participants with psychosis played the Minnesota Trust Game, in which they decided whether to take a small amount of money or trust a partner to choose between fair and unfair distributions of money. In some conditions, the partner benefited from the unfair option, while in others, the partner lost money. Participants who were untrusting in the second condition (suspiciousness) showed heightened sensitivity to spite. Behavioral measures included mistrust during the 2 conditions of the game, which were compared with Brief Psychiatric Rating Scale persecution and computational modeling. Functional connectivity and blood oxygen level-dependent analyses were also conducted on a priori regions during spite-sensitive decisions. RESULTS: Behavioral results replicated previous findings; participants who experienced more persecutory ideation trusted less, specifically in the suspiciousness condition. Functional connectivity findings showed that decreased connectivity between the orbitofrontal cortex-insula and the left frontoparietal network was associated with increased persecutory ideation and estimated spite-guilt (a marker of spite sensitivity). Additionally, we found differences between conditions in caudate nucleus, medial prefrontal cortex, and lateral orbitofrontal cortex activation. CONCLUSIONS: These findings provide a new perspective on the origin of positive symptoms by identifying primary brain circuits that are related to both spite sensitivity and persecutory ideation.
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Trastornos Psicóticos , Confianza , Humanos , Confianza/psicología , Minnesota , Corteza PrefrontalRESUMEN
OBJECTIVE: The authors of this systematic review examined service utilization and outcomes among youths from ethnoracially minoritized groups after the youths initiated treatment for a psychotic disorder-that is, the youths' "pathway through care." Also examined were potential moderating variables in pathways through care for these youths at the clinic, family, and cultural levels. The goal was to describe methodologies, summarize relevant findings, highlight knowledge gaps, and propose future research on pathways through care for young persons from ethnoracially minoritized groups who experience early psychosis. METHODS: The PubMed, PsycInfo, and Web of Science literature databases were systematically searched for studies published between January 1, 2010, and June 1, 2021. Included articles were from the United States and focused on young people after they initiated treatment for early psychosis. Eighteen studies met inclusion criteria. RESULTS: Sixteen of the 18 studies were published in the past 5 years, and 11 had an explicit focus on race and ethnicity as defined by the studies' authors. Studies varied in terminology, outcomes measures, methodologies, and depth of analysis. Being an individual from an ethnoracially minoritized group appeared to affect care utilization and outcomes. Insufficient research was found about potential moderating variables at the clinic, family, and cultural levels. CONCLUSIONS: Studies of pathways through care for persons from minoritized groups warrant further funding and attention.
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Trastornos Psicóticos , Humanos , Adolescente , Estados Unidos , Trastornos Psicóticos/terapia , EtnicidadRESUMEN
Cognitive control deficits are associated with impaired executive functioning in schizophrenia. The Dual Mechanisms of Control framework suggests that proactive control requires sustained dorsolateral prefrontal activity, whereas reactive control marshals a larger network. However, primate studies suggest these processes are maintained by dual-encoding regions. To distinguish between these theories, we compared the distinctiveness of proactive and reactive control functional neuroanatomy. In a reanalysis of data from a previous study, 47 adults with schizophrenia and 56 controls completed the Dot Pattern Expectancy task during an fMRI scan examining proactive and reactive control in frontoparietal and medial temporal regions. Areas suggesting specialized control or between-group differences were tested for association with symptoms and task performance. Elastic net models additionally explored these areas' predictive abilities regarding performance. Most regions were active in both reactive and proactive control. However, evidence of specialized proactive control was found in the left middle and superior frontal gyri. Control participants showed greater proactive control in the left middle and right inferior frontal gyri. Elastic net models moderately predicted task performance and implicated various frontal gyri regions in control participants, with additional involvement of anterior cingulate and posterior parietal regions for reactive control. Elastic nets for patient participants implicated the inferior and superior frontal gyri, and posterior parietal lobe. Specialized cognitive control was unassociated with either performance or schizophrenia symptomatology. Future work is needed to clarify the distinctiveness of proactive and reactive control, and its role in executive deficits in severe psychopathology.
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Neuroanatomía , Esquizofrenia , Humanos , Esquizofrenia/diagnóstico por imagen , Lóbulo Frontal , Corteza Prefrontal/diagnóstico por imagen , Lóbulo Temporal , Imagen por Resonancia MagnéticaRESUMEN
BACKGROUND: Nonsuicidal self-injury (NSSI), which involves self-damaging behavior (e.g., cutting) causes tissue damage and places people at elevated risk for future suicidal behaviors. Yet few specific treatments for NSSI currently exist. Extreme self-criticism is implicated in the development and maintenance of NSSI. We conducted a randomized controlled trial to evaluate Autobiographical Self-Enhancement Training (ASET), a novel, cognitive intervention for NSSI focused on reducing self-criticism and enhancing positive self-worth. We also examined whether Expressive Writing (EW) was a helpful treatment for NSSI. METHOD: Participants (N = 144) who had engaged in NSSI at least twice in the past month were recruited online and then randomly assigned via Qualtrics to receive the ASET intervention (N = 49), the EW intervention (N = 49), or Daily Journaling [JNL; N = 46]), an active comparison condition. Treatments were designed as month-long daily diaries. Participants in ASET wrote about something that made them feel good about themselves that day, participants in EW described something that had been on their mind that day, and participants in JNL reported on the events of the day in a factually descriptive manner without emotional content. RESULTS: Intent-to-treat analyses revealed that, regardless of treatment group, participants showed significant reductions in self-criticism, NSSI episodes, depression, and suicide ideation from baseline to the end of active treatment. Relative to the JNL group, the ASET group reported significantly less self-criticism at post-treatment; this was not maintained at follow-up. There was also a trend toward ASET being associated with less suicide ideation at the end of treatment compared to EW. This difference was significant at the 3-month follow-up. Unexpectedly, the JNL group reported significantly less suicide ideation than the EW group at post-treatment; this was maintained at 3-month follow-up. No significant treatment effects were detected for suicide plans, suicidal behaviors, desire to discontinue NSSI, or likelihood of future NSSI. CONCLUSION: Self-criticism is an important treatment target in NSSI, but changing self-criticism in people with an established history of NSSI presents challenges. Nonetheless, all approaches provided benefits. This study also established the feasibility of inexpensive and easily disseminated treatments for NSSI. TRIAL REGISTRATION NUMBER: ISRCTN12276176 (retrospectively registered, March 13, 2018).