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1.
Psychol Med ; 53(16): 7943-7952, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37522514

RESUMO

BACKGROUND: Life engagement represents a holistic concept that encompasses outcomes reflecting life-fulfilment, well-being and participation in valued and meaningful activities, which is recently gaining attention and scientific interest. Despite its conceptual importance and its relevance, life engagement represents a largely unexplored domain in schizophrenia. The aims of the present study were to independently assess correlates and predictors of patient life engagement in a large and well-characterized sample of schizophrenia patients. METHODS: To assess the impact of different demographic, clinical, cognitive and functional parameters on life engagement in a large sample of patients with schizophrenia, data from the social cognition psychometric evaluation project were analyzed. RESULTS: Overall schizophrenia and depressive symptom severity, premorbid IQ, neurocognitive performance, social cognition performance both in the emotion processing and theory of mind domains, functional capacity, social skills performance and real-world functioning in different areas all emerged as correlates of patient life engagement. Greater symptom severity and greater impairment in real-world interpersonal relationships, social skills, functional capacity and work outcomes emerged as individual predictors of greater limitations in life engagement. CONCLUSIONS: Life engagement in people living with schizophrenia represents a holistic and complex construct, with several different clinical, cognitive and functional correlates. These features represent potential treatment targets to improve the clinical condition and also facilitate the process of recovery and the overall well-being of people living with schizophrenia.


Assuntos
Esquizofrenia , Humanos , Escalas de Graduação Psiquiátrica , Relações Interpessoais , Cognição , Habilidades Sociais
2.
Psychol Med ; 53(9): 4200-4209, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-35478065

RESUMO

BACKGROUND: Inaccurate self-assessment of performance is common among people with serious mental illness, and it is associated with poor functional outcomes independent from ability. However, the temporal interdependencies between judgments of performance, confidence in accuracy, and feedback about performance are not well understood. METHODS: We evaluated two tasks: the Wisconsin Card Sorting Test (WCST) and the Penn Emotion recognition task (ER40). These tasks were modified to include item-by-item confidence and accuracy judgments, along with feedback on accuracy. We evaluated these tasks as time series and applied network modeling to understand the temporal relationships between momentary confidence, accuracy judgments, and feedback. The sample constituted participants with schizophrenia (SZ; N = 144), bipolar disorder (BD; N = 140), and healthy controls (HC; N = 39). RESULTS: Network models for both WCST and ER40 revealed denser and lagged connections between confidence and accuracy judgments in SZ and, to a lesser extent in BD, that were not evidenced in HC. However, associations between feedback regarding accuracy with subsequent accuracy judgments and confidence were weaker in SZ and BD. In each of these comparisons, the BD group was intermediate between HC and SZ. In analyses of the WCST, wherein incorporating feedback is crucial for success, higher confidence predicted worse subsequent performance in SZ but not in HC or BD. CONCLUSIONS: While network models are exploratory, the results suggest some potential mechanisms by which challenges in self-assessment may impede performance, perhaps through hyperfocus on self-generated judgments at the expense of incorporation of feedback.


Assuntos
Transtorno Bipolar , Esquizofrenia , Humanos , Julgamento , Retroalimentação , Fatores de Tempo
3.
J Nerv Ment Dis ; 211(11): 841-847, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37734155

RESUMO

ABSTRACT: Models of affect, like the tripartite model, suggest that positive affect (PA) and negative affect (NA) are independent between subjects and negatively correlated within. Correlations may differ in bipolar disorder (BD) and schizophrenia. Using ecological momentary assessment (EMA) and clinical ratings, this secondary analysis evaluated the tripartite model by examining PA and NA. Two hundred eighty-one participants with BD or a psychotic disorder completed 30 days of EMA of PA and NA, and clinical raters assessed depression. PA and NA were more related between subjects and less related within subjects among participants with schizophrenia. In BD, lower momentary PA was positively associated with clinical ratings of depression, although greater momentary NA was not significantly associated with clinical ratings. In schizophrenia, the inverse was found. These results suggest that the tripartite model was not confirmed in people with schizophrenia or BD. However, PA and NA manifested associations in BD that were more congruent with population studies than in schizophrenia. These findings may have implications for clinical interventions targeting depression, PA, and NA in these populations.


Assuntos
Transtorno Bipolar , Transtornos Psicóticos , Esquizofrenia , Humanos , Transtorno Bipolar/complicações , Esquizofrenia/complicações , Depressão/etiologia , Afeto
4.
Cogn Neuropsychiatry ; 28(6): 450-466, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37942934

RESUMO

INTRODUCTION: The study explored associations between the accuracy of post assessment judgements of cognitive performance with global self-assessments of psychosocial functioning compared to evaluations generated by observers in schizophrenia and bipolar disorder. METHODS: An abbreviated cognitive assessment based on the MATRICS Consensus Cognitive Battery was administered to 122 individuals with schizophrenia and 113 with bipolar disorder. They provided self-estimates of their performance after each subtest. In addition, self-reports on cognition, social cognition, and everyday functioning were collected and compared to observer ratings. RESULTS: Both groups overestimated their cognitive function, but in bipolar disorder, there was 30% shared variance between task performance and self-rated task performance (vs. 5% in schizophrenia). Significant correlations were found between self-reported everyday outcomes and both actual and self-assessed performance. In schizophrenia, immediate judgements were only related to self-rated functioning, not to observer rated functioning. In bipolar disorder, impairments in self-assessment of performance correlated with observer ratings of cognitive ability, which was not observed in schizophrenia. CONCLUSIONS: While both groups showed correlations between cognitive performance and introspective accuracy, individuals with bipolar disorder showed higher accuracy in assessing their cognitive performance and other outcomes. Notably, impairments in introspective accuracy were associated with observer-rated functioning exclusively in bipolar disorder.


Assuntos
Transtorno Bipolar , Esquizofrenia , Humanos , Transtorno Bipolar/psicologia , Julgamento , Cognição , Autorrelato , Testes Neuropsicológicos
5.
Psychol Health Med ; 28(5): 1288-1297, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36082408

RESUMO

COVID-19 patients and survivors quite often experience depressive symptoms, which can increase risk for lower immune system response and poorer recovery. Vulnerability to depressive symptoms may be elevated in those patients who have the most severe COVID-19 course of illness, that is, patients who require supplementary oxygen therapy or even intubation. The current study involved a unique sample of patients who were hospitalized due to COVID-19 and who required respiratory support (N = 34, 10 women) in which we investigated depressive symptoms as well as psychopathological personality traits (PID5) as predictors. The majority of patients (76.5%) presented some degree of depressive symptoms. Although we expected severe levels of depressive symptoms to be most prevalent, more patients showed rather moderate levels. At the same time, Negative Affectivity was most predictive of depressive symptoms. We suggest that medical care for patients with greater emotional sensitivity and vulnerability to stress be supplemented with psychological support in order to address depressive symptoms and foster recovery.


Assuntos
COVID-19 , Humanos , Feminino , Depressão/psicologia
6.
Cogn Neuropsychiatry ; 27(5): 342-355, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35499098

RESUMO

BACKGROUND: Previous weekly sampling studies found that persistent sad moods are associated with disability in bipolar illness. However, those data were collected retrospectively. We examined the momentary quality of activities (productive, unproductive, and passive recreation) in an ecological momentary assessment (EMA) study and related sadness at each survey to quality of momentary activities and overall everyday functioning. METHODS: Participants with bipolar illness (N = 91) were sampled three times per day for 30 days. Each survey queried participants as to where they were, with whom, what they were doing, and their mood state. Activities were characterised according to predetermined criteria and related to momentary sadness. Observer ratings of everyday functioning were related to daily reports of sadness and activities. RESULTS: Sadness was associated with the quality of activities. Momentary reports of unproductive activities were associated with the most sadness (p < .001), followed by passive recreation, and productive activities. Momentary sadness and momentary unproductive activities correlated with observer ratings of competence in work, everyday activities, and social outcomes (p < .001). Using both predictors led to the best model. CONCLUSIONS: This study on the course of sad moods in people with bipolar illness to EMA found that momentary sadness correlatesdwith the quality of concurrent activities and that both sadness and the quality of everyday activities predicted observer ratings of everyday functioning. Although we cannot determine the causal direction, these findings support the hypothesis that momentary sadness leads to reductions in productive activities and impairments in everyday functioning.


Assuntos
Transtorno Bipolar , Avaliação Momentânea Ecológica , Humanos , Estudos Retrospectivos , Tristeza , Inquéritos e Questionários
7.
J Ment Health ; 31(5): 649-656, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33166190

RESUMO

BACKGROUND: Racial and ethnic disparities have been clearly documented in schizophrenia studies, but it is unclear how much research attention they receive among US-based studies published in high-impact journals. AIMS: The current paper updates Lewine and Caudle's (1999) and Chakraborty and Steinhauer's (2010) works, which quantified how frequently schizophrenia studies included information on race and ethnicity in their analyses. METHOD: We examined all US-based papers on schizophrenia-spectrum, first-episode psychosis, and clinical high-risk groups, published between 2014 to 2016 in four major psychiatric journals: American Journal of Psychiatry, Journal of the American Medical Association - Psychiatry, Schizophrenia Bulletin, and Schizophrenia Research. RESULTS: Of 474 US-based studies, 62% (n = 295) reported analyses by race or ethnicity as compared to 20% in Lewine and Caudle's (1999) study. The majority of papers (59%) reported sample descriptions, a 42% increase from Lewine and Caudle's (1999) study. Additionally, 47% matched or compared the racial/ethnic composition of primary study groups and 12% adjusted for race (e.g., as a covariate). However, only 9% directly analyzed racial and/or ethnic identity in relation to the primary topic of the paper. CONCLUSIONS: While schizophrenia studies report analyses by race and ethnicity more frequently than 20 years ago, there remains a strong need for systematic, nuanced research on this topic. The authors offer recommendations for how to conceptualize and report upon race and ethnicity in schizophrenia research.


Assuntos
Publicações Periódicas como Assunto , Transtornos Psicóticos , Esquizofrenia , Etnicidade , Humanos , Estados Unidos
8.
Br J Clin Psychol ; 60(3): 333-338, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33914945

RESUMO

OBJECTIVES: Paranoia manifests similarly in subclinical and clinical populations and is related to distress and impairment. Previous work links paranoia to amygdala hyperactivity and reduced activation of the ventrolateral prefrontal cortex (VLPFC), a region thought to regulate amygdala activity. METHODS: This study aimed to reduce subclinical paranoia in 40 undergraduates by increasing activity of the VLPFC via single-session transcranial Direct Current Stimulation (tDCS). A double-blind, crossover (active vs. sham stimulation) design was used. RESULTS: Paranoia significantly decreased after active stimulation (dz  = 0.51) but not sham (dz  = 0.19), suggesting that tDCS of VLPFC was associated with mean-level reductions in paranoia. CONCLUSION: These findings demonstrate preliminary support for the role of single-session active stimulation to the VLPFC for reducing subclinical paranoia in healthy individuals. PRACTITIONER POINTS: In both clinical and subclinical populations, paranoia is related to distress and poorer functional outcomes. Paranoia has been linked to overactivation of the amygdala, a brain region responsible for detecting salience and threat, and reduced activation of the ventrolateral prefrontal cortex (VLPFC), a region thought to modulate and regulate amygdala activity. In this study, transcranial direct current stimulation (tDCS) of the VLPFC reduced self-reported paranoia in healthy undergraduate students. tDCS may be a promising intervention for reducing paranoia in subclinical and clinical populations. Effects were relatively small and require replication with larger subclinical samples and with clinical samples.


Assuntos
Voluntários Saudáveis , Transtornos Paranoides/terapia , Córtex Pré-Frontal , Estimulação Transcraniana por Corrente Contínua , Método Duplo-Cego , Feminino , Humanos , Masculino , Adulto Jovem
9.
Br J Clin Psychol ; 60(2): 160-176, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33650108

RESUMO

OBJECTIVES: Previous work has demonstrated that the tendency to make hostile attributions is not a stable trait but varies across different social situations. Therefore, we sought to investigate whether hostile attributions within clinical samples are better understood as a persistent characteristic or one that varies across contexts. METHODS: The current analyses investigated patterns of attributions among people diagnosed with schizophrenia (SCZ, n = 271) or autism spectrum disorder (ASD, n = 100) and non-clinical control participants (NCC, n = 233) in an existing data set. RESULTS: Results showed that specific relational features in vignettes portraying different social encounters influence the way people make attributions and that variability across contexts is present in both non-clinical and clinical populations. Like non-clinical participants, participants diagnosed with ASD ascribed the greatest hostility to a scene involving an authority figure. In contrast, SCZ participants reported the greatest hostility in response to a scene involving a friend. CONCLUSIONS: These findings suggest that salient environmental factors should be considered when assessing social cognitive skills and biases. PRACTITIONER POINTS: Hostile attributions should be perceived as situational constructs rather than stable and persistent characteristics. Hostile attributions were most prevalent among persons diagnosed with schizophrenia; however, on average, all participants showed greater hostility for situations involving an authority figure, an acquaintance, or a friend relative to those involving a co-worker or stranger. Psychotherapists and clinicians working with people diagnosed with schizophrenia or autism spectrum disorder could work on identifying situation triggers, which may prompt hostile attributions. Psycho-educational and psychotherapeutic interventions can be altered based on individual triggers of hostile attributions, and attempts can be made to lessen these attributions. Paranoia appears to be linked to hostile attributions regardless of the specific clinical diagnosis and should be considered in the therapeutic process.


Assuntos
Transtorno do Espectro Autista/complicações , Hostilidade , Esquizofrenia/complicações , Percepção Social/psicologia , Adolescente , Adulto , Idoso , Transtorno do Espectro Autista/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
10.
Cogn Neuropsychiatry ; 26(2): 95-106, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33380266

RESUMO

BACKGROUND: Challenges in employment are highly prevalent among people with schizophrenia regardless of their employment history. Although supportive employment can be effective, few participants sustain meaningful competitive employment. Our goal was to identify the correlates of developing sustained unemployment. METHODS: We examined employment outcomes by comparing clinical, neurocognitive, and social cognitive features in 234 participants with Schizophrenia Spectrum Disorders across t competitive employment outcomes: currently employed, participants who had never worked for a year, and those who had been employed but developed long-term unemployment. We examined social cognition and neurocognition, as well as positive and negative schizophrenia symptoms, and premorbid functioning and demographic factors. RESULTS: We found significant differences in age, race, premorbid functioning, cognitive performance, and social cognition between currently and formerly employed patients. When individual tasks were examined, emotion recognition and verbal working memory performance were the domains differentiating the groups. Older African Americans were over-represented in the formerly employed group. CONCLUSIONS: There were minimal differences other than age and race between formerly employed patients and those who had never worked. These data suggest the possibility that deterioration in employment outcomes may also co-occur with declines in other abilities. Opportunities and disparities may also be a contributor to re-entering the work force.


Assuntos
Esquizofrenia , Cognição , Emprego , Humanos , Testes Neuropsicológicos , Esquizofrenia/epidemiologia , Desemprego
11.
Psychol Med ; 50(15): 2557-2565, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-31576783

RESUMO

BACKGROUND: Autism spectrum disorder (ASD) and schizophrenia (SCZ) are separate neurodevelopmental disorders that are both characterized by difficulties in social cognition and social functioning. Due to methodological confounds, the degree of similarity in social cognitive impairments across these two disorders is currently unknown. This study therefore conducted a comprehensive comparison of social cognitive ability in ASD and SCZ to aid efforts to develop optimized treatment programs. METHODS: In total, 101 individuals with ASD, 92 individuals with SCZ or schizoaffective disorder, and 101 typically developing (TD) controls, all with measured intelligence in the normal range and a mean age of 25.47 years, completed a large battery of psychometrically validated social cognitive assessments spanning the domains of emotion recognition, social perception, mental state attribution, and attributional style. RESULTS: Both ASD and SCZ performed worse than TD controls, and very few differences were evident between the two clinical groups, with effect sizes (Cohen's d) ranging from 0.01 to 0.34. For those effects that did reach statistical significance, such as greater hostility in the SCZ group, controlling for symptom severity rendered them non-significant, suggesting that clinical distinctions may underlie these social cognitive differences. Additionally, the strength of the relationship between neurocognitive and social cognitive performance was of similar, moderate size for ASD and SCZ. CONCLUSIONS: Findings largely suggest comparable levels of social cognitive impairment in ASD and SCZ, which may support the use of existing social cognitive interventions across disorders. However, future work is needed to determine whether the mechanisms underlying these shared impairments are also similar or if these common behavioral profiles may emerge via different pathways.


Assuntos
Transtorno do Espectro Autista/psicologia , Disfunção Cognitiva/etiologia , Psicologia do Esquizofrênico , Cognição Social , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Percepção Social , Habilidades Sociais , Teoria da Mente , Adulto Jovem
12.
Soc Psychiatry Psychiatr Epidemiol ; 55(5): 549-559, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31667560

RESUMO

INTRODUCTION: Persons diagnosed with schizophrenia spectrum disorders (SSDs) often experience pervasive feelings of loneliness, which are considered a significant barrier to treatment and recovery. AIM: As impaired social cognition may contribute to increased loneliness and less skillful social interactions, this study examines the relationships between loneliness and measures of social cognition and functional outcome from the Social Cognition Psychometric Evaluation (SCOPE) study. METHODS: This study evaluated the relationship between loneliness, social cognitive ability, and social functioning in the context of a large-scale psychometric investigation. We also explored the associations of select demographic characteristics and clinical variables on the endorsement of loneliness in persons diagnosed with a psychotic disorder. RESULTS: Seventy-four stable outpatients with SSDs and 58 healthy controls completed the UCLA Loneliness Scale in addition to the standard SCOPE battery. Our findings support prior research indicating persons diagnosed with a psychotic disorder experience greater levels of loneliness than normative groups. However, the results also indicate that self-reported loneliness is not associated with social cognitive abilities or functional outcome in psychosis. Regression analyses indicate that roughly half the variance in loneliness endorsed by persons with SSDs is accounted for by clinical variables, with loneliness most strongly associated with guilt and self-esteem. CONCLUSION: These findings suggest that treatments aiming to reduce perceived social isolation in psychosis should incorporate techniques to bolster selfesteem, reduce guilt, and improve depressive symptoms.


Assuntos
Solidão/psicologia , Transtornos Psicóticos/psicologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Prontuários Médicos , North Carolina , Estudos Prospectivos , Psicometria , Transtornos Psicóticos/complicações , Isolamento Social
13.
Cogn Neuropsychiatry ; 25(1): 57-70, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31645224

RESUMO

Introduction: Deficits in social competence have been identified in schizotypy; however, most studies rely on self-reports of these skills. Deficits in introspective accuracy (IA) have been identified within schizophrenia, and recent work suggests IA is impaired in schizotypy as well. Thus, the perception of poorer social competence among individuals high in schizotypy may be due to inaccurate self-assessments rather than actual skill deficits.Method: This study examined the relationship between schizotypy, perceived social competence, and observed social competence in 137 undergraduate students.Results: Differences in self-reported social competence were found such that individuals high in schizotypy reported greater deficits than individuals low in schizotypy. However, the groups performed comparably on an objective assessment of social competence. Within groups, individuals high in schizotypy underestimated their social competence, whereas controls overestimated their social competence. Thus, both groups demonstrated impairments in IA.Conclusions: These findings demonstrate that individuals high in schizotypal traits perceive that they have poor social competence despite displaying skills that are on par with their peers. Such perceptions may lead to avoidance of social interactions or employment opportunities and could contribute to deficits in social functioning.


Assuntos
Transtorno da Personalidade Esquizotípica/psicologia , Autoimagem , Autorrelato , Habilidades Sociais , Adolescente , Adulto , Feminino , Humanos , Masculino , Psicometria , Transtorno da Personalidade Esquizotípica/diagnóstico , Ajustamento Social , Adulto Jovem
14.
Cogn Neuropsychiatry ; 25(2): 139-153, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31870213

RESUMO

INTRODUCTION: Disturbed emotion processing is well documented in schizophrenia, but the majority of studies evaluate processing of emotion only from facial expressions. Social cues are also communicated via body posture, and they are similarly relevant for successful social interactions. The aim of the current study was to thoroughly examine body perception abilities in individuals with schizophrenia. METHODS: Fifty-nine patients with schizophrenia and 37 healthy controls completed two tasks of body processing. The first, which was based on the Affect Misattribution Procedure, evaluated implicit processing of bodily emotions, and the second utilised a traditional emotion identification paradigm to assess explicit emotion recognition. RESULTS: Results revealed aberrant implicit processing, but more normative explicit processing, in individuals with schizophrenia. Moderate associations were found between processing of bodies and symptoms of paranoia. Performance on the tasks was not related to cognitive functioning but was associated with clinician-rated social functioning. CONCLUSIONS: Collectively, these results provide information about disturbed processing of bodily emotions in schizophrenia and suggest that these disturbances are associated with the severity of positive symptoms and predict difficulties in everyday social activities and interpersonal relationships.


Assuntos
Emoções/fisiologia , Expressão Facial , Cinésica , Estimulação Luminosa/métodos , Esquizofrenia/diagnóstico , Psicologia do Esquizofrênico , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Paranoides/diagnóstico , Transtornos Paranoides/fisiopatologia , Transtornos Paranoides/psicologia , Esquizofrenia/fisiopatologia
15.
Br J Clin Psychol ; 58(1): 19-34, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30028025

RESUMO

OBJECTIVE: Previous research has suggested that paranoia is associated with impaired social functioning in patients with schizophrenia and healthy individuals with high levels of paranoid ideation. This study analysed the relationship between paranoia and interpersonal functioning across the paranoia continuum using network analysis. METHOD: Levels of paranoid ideation and interpersonal functioning were measured in a non-clinical sample (N = 853) and in patients with schizophrenia spectrum disorders (N = 226). Network analyses were used to examine the nature of paranoia's relation to interpersonal functioning in both populations. RESULTS: Although the most central characteristic of paranoia in both samples was the feeling of being talked about behind one's back, across samples, individual characteristics were differentially related to various aspects of interpersonal functioning. Among clinical individuals, difficulties in interpersonal functioning were related to perceived previous experiences of being treated poorly by others, whereas among the non-clinical sample, interpersonal functioning was related to negative beliefs about others. CONCLUSIONS: The current results support previous findings linking paranoid ideation to interpersonal functioning in both clinical and non-clinical samples. Patterns of these relationships differed slightly across groups. Results in general support a continuum model of paranoia. PRACTITIONER POINTS: Network analyses were used to identify central aspects of persecutory ideation in both clinical and non-clinical samples. Qualitative assessment of clinical and non-clinical networks revealed similar central symptoms and supported a continuum model of paranoia. Central aspects of paranoia, that is, feeling that others have talked about oneself behind one's back, being disappointed by others, and having distressing feelings of being watched by others, were associated with deficits in interpersonal functioning in both samples. Central aspects of paranoia may be beneficial targets for psychosocial interventions aimed at reducing paranoid ideation and improving interpersonal functioning. Demographic characteristics for this study differed between samples which may limit generalization of findings. Future research is needed to explore temporal associations and moment-to-moment dynamics between paranoid ideation and problems in interpersonal functioning.


Assuntos
Emoções , Relações Interpessoais , Transtornos Paranoides/diagnóstico , Transtornos Paranoides/psicologia , Esquizofrenia/diagnóstico , Pensamento , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Percepção , Escalas de Graduação Psiquiátrica , Adulto Jovem
16.
J Nerv Ment Dis ; 205(5): 346-352, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28141631

RESUMO

Age, race, and sex are linked to social cognitive performance among healthy individuals, but whether similar effects are evident in schizophrenia is unknown. Data from 170 individuals with schizophrenia or schizoaffective disorder and 98 healthy controls were used to examine relations between these demographic factors and performance across multiple domains and measures of social cognition. Sex was not related to performance on any domain, but older age was related to poorer emotion recognition from dynamic stimuli in both patients and controls. In patients, older age was also associated with better abilities to decipher hints. Both Caucasian patients and controls performed better than African American individuals on emotion recognition and mental state attribution tasks that use only Caucasian individuals as visual stimuli. Findings suggest rather limited influences of demographic factors but do demonstrate normative age and race effects among patients. Findings also highlight important methodological considerations for measurement of social cognition.


Assuntos
Emoções/fisiologia , Transtornos Psicóticos , Esquizofrenia , Percepção Social , Teoria da Mente/fisiologia , Adulto , Negro ou Afro-Americano/etnologia , Fatores Etários , Feminino , Florida/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Psicóticos/epidemiologia , Transtornos Psicóticos/etnologia , Transtornos Psicóticos/fisiopatologia , Reconhecimento Psicológico/fisiologia , Esquizofrenia/epidemiologia , Esquizofrenia/etnologia , Esquizofrenia/fisiopatologia , Fatores Sexuais , População Branca/etnologia
17.
Br J Clin Psychol ; 55(4): 441-454, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27168196

RESUMO

OBJECTIVE: The ongoing Social Cognition Psychometric Evaluation (SCOPE) study is in the process of forming a gold-standard battery of social cognition tests for use in clinical trials. Previous SCOPE phases have not acknowledged key differences between social cognition skills and biases, and psychometric validity analyses might provide important information if tailored to bias-related outcomes. This study aims to validate these measures with such bias-related outcomes. METHODS: Two measures of social cognitive bias - the Ambiguous Intention Hostility Questionnaire (AIHQ; hostile attribution bias) and Trustworthiness Task (distrust bias) - were reviewed according to their relationships to (1) current and prospective symptom levels, (2) questionnaires of trait paranoia and hostility and informant-rated hostility, (3) interpersonal conflict, as well as (4) relationships to measures of trait paranoia, hostility, and interpersonal conflict above and beyond the influence of clinically rated symptoms. RESULTS: Results supported hypotheses that social cognitive bias provides information about cognition, symptoms, and functioning related to interpersonal conflict. Each bias demonstrated relationships to trait paranoia questionnaires, hostility, or interpersonal conflict outcomes, and these persisted above and beyond the influence of clinically rated symptoms. Hostile attribution bias also predicted change in symptom levels over a brief interval. CONCLUSIONS: Overall, the current bias-specific psychometric analysis provides support for continued study of social cognitive biases. PRACTITIONER POINTS: Hostile attribution bias may play a role in important outcome variables given relationships to emotional discomfort and suspiciousness symptoms, trait paranoia and hostility, interpersonal conflict, as well as prospective hostility symptoms. Distrust bias may also impact real-world functioning, as it is related to hostility, suspiciousness, and positive symptoms, trait paranoia, and hostility. Relationships of social cognitive biases to interpersonal conflict outcomes exist independently of interview-rated symptoms and persist above and beyond the influence of social cognitive skills, which appear to demonstrate weaker relationships to these outcomes. Understanding and assessing the individual's biases towards distrust or blame might help practioners predict interpersonal conflict and future increases in symptoms.


Assuntos
Transtornos Cognitivos/etiologia , Escalas de Graduação Psiquiátrica/normas , Esquizofrenia/diagnóstico , Comportamento Social , Inquéritos e Questionários , Adolescente , Adulto , Transtornos Cognitivos/psicologia , Emoções , Feminino , Hostilidade , Humanos , Relações Interpessoais , Masculino , Pessoa de Meia-Idade , Transtornos Paranoides/psicologia , Estudos Prospectivos , Psicometria/estatística & dados numéricos , Psicologia do Esquizofrênico , Percepção Social
19.
Neuroimage ; 98: 176-83, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24814209

RESUMO

With age, many aspects of the brain structure undergo a pronounced decline, yet individuals generally function well until advanced old age. There appear to be several compensatory mechanisms in brain aging, but their precise nature is not well characterized. Here we provide evidence that the brain of older adults expends more energy when compared to younger adults, as manifested by an age-related increase (P=0.03) in cerebral metabolic rate of oxygen (CMRO2) (N=118, men=56, ages 18 to 74). We further showed that, before the mean menopausal age of 51years old, female and male groups have similar rates of CMRO2 increase (P=0.015) and there was no interaction between age and sex effects (P=0.85). However, when using data from the entire age range, women have a slower rate of CMRO2 change when compared to men (P<0.001 for age×sex interaction term). Thus, menopause and estrogen level may have played a role in this sex difference. Our data also revealed a possible circadian rhythm of CMRO2 in that brain metabolic rate is greater at noon than in the morning (P=0.02). This study reveals a potential neurobiological mechanism for age-related compensation in brain function and also suggests a sex-difference in its temporal pattern.


Assuntos
Encéfalo/metabolismo , Oxigênio/metabolismo , Adolescente , Adulto , Fatores Etários , Idoso , Metabolismo Basal , Encéfalo/irrigação sanguínea , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Adulto Jovem
20.
Schizophr Bull ; 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39116540

RESUMO

BACKGROUND AND HYPOTHESIS: Social cognitive impairments are central to psychosis, including lower severity psychosis-like experiences (PLEs). Nonetheless, progress has been hindered by social cognition's poorly defined factor structure, as well as limited work examining the specificity of social cognitive impairment to psychosis. The present study examined how PLEs relate to social cognition in the context of other psychopathology dimensions, using a hierarchical factors approach to social cognition. STUDY DESIGN: Online community participants (N = 1026) completed psychosis, autism, and personality disorder questionnaires, as well as 3 social cognitive tasks that varied in methodology (vignette vs video) and construct (higher- vs lower-level social cognition). Exploratory (EFA) and confirmatory factor analyses (CFA) were used to model social cognition, with the best models being examined in association with PLEs and psychopathology dimensions. STUDY RESULTS: EFA and CFA supported a hierarchical model of social cognition, with 2 higher-order factors emerging: verbal/vignette task methodology and a multimethod general social cognition factor. These higher-order factors accounted for task-level associations to psychopathology, with relations to positive symptoms (r = .23) and antagonism (r = .28). After controlling for other psychopathology, positive symptoms were most clearly related to tasks with verbal methodology (ß = -0.34). CONCLUSIONS: These results suggest that broad social cognitive processes and method effects may account for many previous findings in psychosis and psychopathology research. Additionally, accounting for broad social cognitive impairment may yield insights into more specific social cognitive processes as well.

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