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1.
Front Psychol ; 13: 993663, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36300061

RESUMO

Continued interest in the distinction between grandiose narcissism, vulnerable narcissism and the fluctuation between grandiose and vulnerable states has expanded the repertoire of self-report instruments. The present study examined the psychometric properties of four brief narcissism measures [the Narcissistic Personality Inventory-13 (NPI-13), Hypersensitive Narcissism Scale (HSNS), Super-Brief Pathological Narcissism Inventory (SB-PNI), and the g-FLUX] in a Finnish sample of university students. Confirmatory factor analyses supported the reliability of the NPI-13, g-FLUX, SB-PNI Vulnerability, and two HSNS subfactors (Oversensitivity and Egocentrism). Tests of measurement invariance indicated the NPI-13, SB-PNI Vulnerability, HSNS Oversensitivity, and the g-FLUX perform similarly between males and females and are generally similar between individuals in younger and older age groups. Construct and predictive validity were evaluated by examining relations between narcissism measures and relevant criteria including psychopathology symptoms, self-esteem, well-being, five factor traits, and empathy. Results supported the construct validity of all four measures, while correlational profiles highlighted the convergence between the g-FLUX and measures of both grandiosity and vulnerability. The NPI-13 was most predictive of NPD symptoms, whereas vulnerable narcissism measures were most predictive of psychopathology. Results further establish the psychometric properties of the NPI-13, SB-PNI Vulnerability, HSNS Oversensitivity, Egocentrism, and provide new validation of the g-FLUX.

2.
Psychol Assess ; 30(7): 984-990, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29792507

RESUMO

Despite a growing interest in the use of self-report measures of narcissism among student, community, and clinical samples, the research on narcissism in prison samples is sparse, despite elevated rates of narcissism in these samples. The current study examined the relations between commonly used measures of grandiose narcissism (Narcissistic Personality Inventory-13 [NPI-13]), vulnerable narcissism (Hypersensitive Narcissism Scale [HSNS]), and narcissistic personality disorder (NPD; Personality Diagnostic Questionnaire [PDQ]) in a sample of adult male offenders (N = 179). The NPI-13 and PDQ NPD scales overlapped substantially with one another and manifested similar empirical profiles (rICC = .81), with both being substantially correlated with interview-based symptoms of NPD, entitlement, psychopathy, and externalizing behaviors. Conversely, the HSNS manifested more limited relations with other measures of NPD and related traits (e.g., entitlement), as well as externalizing behaviors, and was more strongly related to internalizing symptoms. Consistent with previous work, NPD appears to be a blend of grandiose and vulnerable narcissism as the PDQ's empirical profile overlapped with that of the HSNS (rICC = .51), which was not true for the NPI-13 (rICC = .18). Analyses of the incremental validity of the 3 measures suggested that the NPI-13 was particularly successful in accounting for unique variance in these relevant criteria. These results underscore the benefit of utilizing multiple measures to distinguish empirical correlates of grandiose narcissism, vulnerable narcissism, and NPD. (PsycINFO Database Record


Assuntos
Criminosos/psicologia , Narcisismo , Transtornos da Personalidade/diagnóstico , Transtornos da Personalidade/psicologia , Inventário de Personalidade/estatística & dados numéricos , Autorrelato/estatística & dados numéricos , Adolescente , Adulto , Criminosos/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Prisioneiros/psicologia , Prisioneiros/estatística & dados numéricos , Inquéritos e Questionários , Wisconsin , Adulto Jovem
3.
J Am Med Inform Assoc ; 25(3): 353-359, 2018 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-29202185

RESUMO

OBJECTIVE: To assess clinical documentation variations across health care institutions using different electronic medical record systems and investigate how they affect natural language processing (NLP) system portability. MATERIALS AND METHODS: Birth cohorts from Mayo Clinic and Sanford Children's Hospital (SCH) were used in this study (n = 298 for each). Documentation variations regarding asthma between the 2 cohorts were examined in various aspects: (1) overall corpus at the word level (ie, lexical variation), (2) topics and asthma-related concepts (ie, semantic variation), and (3) clinical note types (ie, process variation). We compared those statistics and explored NLP system portability for asthma ascertainment in 2 stages: prototype and refinement. RESULTS: There exist notable lexical variations (word-level similarity = 0.669) and process variations (differences in major note types containing asthma-related concepts). However, semantic-level corpora were relatively homogeneous (topic similarity = 0.944, asthma-related concept similarity = 0.971). The NLP system for asthma ascertainment had an F-score of 0.937 at Mayo, and produced 0.813 (prototype) and 0.908 (refinement) when applied at SCH. DISCUSSION: The criteria for asthma ascertainment are largely dependent on asthma-related concepts. Therefore, we believe that semantic similarity is important to estimate NLP system portability. As the Mayo Clinic and SCH corpora were relatively homogeneous at a semantic level, the NLP system, developed at Mayo Clinic, was imported to SCH successfully with proper adjustments to deal with the intrinsic corpus heterogeneity.

4.
Cogn Affect Behav Neurosci ; 16(5): 779-88, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27225501

RESUMO

Psychopathic individuals are prone to act on urges without adequate consideration of future consequences or the rights of other individuals. One interpretation of this behavior is that it reflects abnormal selective attention (i.e., a failure to process information that is incongruent with their primary focus of attention; Hiatt, Schmitt, & Newman, Neuropsychology, 18, 50-59, 2004). Unfortunately, it is unclear whether this selective attention abnormality reflects top-down endogenous influences, such as the strength or specificity of attention focus (i.e., top-down set) apart from other, more exogenous (bottom-up), effects on attention. To explore this question, we used an early visual event-related potential (N2pc) in combination with a modified visual search task designed to assess the effect of early endogenous (i.e., top-down) attention on the processing of set-congruent information. The task was administered to a sample of 70 incarcerated adult males, who were assigned to high, intermediate, and low psychopathy groups using Hare's Psychopathy Checklist-Revised (Hare, 2003). Based on the assumption that their failure to process set-incongruent information reflects the exaggerated effects of endogenous attention, we predicted that participants with high psychopathy scores would show an exaggerated N2pc response to set-congruent information. The results supported the hypothesis and provide novel electrophysiological evidence that psychopathy is associated with exaggerated endogenous attention effects during early stages of processing. Further research is needed to examine the implications of this finding for the well-established failure of psychopathic individuals to process set-incongruent information and inhibit inappropriate responses.


Assuntos
Transtorno da Personalidade Antissocial/fisiopatologia , Transtorno da Personalidade Antissocial/psicologia , Atenção/fisiologia , Encéfalo/fisiopatologia , Potenciais Evocados Visuais , Adulto , Criminosos , Eletroencefalografia , Humanos , Entrevista Psicológica , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Estimulação Luminosa , Escalas de Graduação Psiquiátrica , Tempo de Reação , Fatores de Tempo , Adulto Jovem
5.
Mayo Clin Proc ; 91(5): 612-22, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27068669

RESUMO

OBJECTIVE: To characterize health disparities in common chronic diseases among adults by socioeconomic status (SES) and ethnicity in a mixed rural-urban community of the United States. PATIENTS AND METHODS: We conducted a cross-sectional study to assess the association of the prevalence of the 5 most burdensome chronic diseases in adults with SES and ethnicity and their interaction. The Rochester Epidemiology Project medical records linkage system was used to identify the prevalence of coronary heart disease, asthma, diabetes, hypertension, and mood disorder using International Classification of Diseases, Ninth Revision codes recorded from January 1, 2005, through December 31, 2009, among all adult residents of Olmsted County, Minnesota, on April 1, 2009. For SES measurements, an individual HOUsing-based index of SocioEconomic Status (HOUSES) derived from real property data was used. Logistic regression models were used to examine the association of the prevalence of chronic diseases with ethnicity and HOUSES score and their interaction. RESULTS: We identified 88,010 eligible adults with HOUSES scores available, of whom 48,086 (54.6%) were female and 80,699 (91.7%) were non-Hispanic white; the median (interquartile range) age was 45 years (30-58 years). Overall and in the subgroup of non-Hispanic whites, SES measured by HOUSES was inversely associated with the prevalence of all 5 chronic diseases independent of age, sex, and ethnicity (P<.001). While an association of ethnicity with disease prevalence was observed for all the chronic diseases, SES modified the effect of ethnicity for clinically less overt conditions (interaction P<.05 for each condition [diabetes, hypertension, and mood disorder]) but not for coronary heart disease, a clinically more overt condition. CONCLUSION: In a mixed rural-urban setting with a predominantly non-Hispanic white population, health disparities in chronic diseases still exist across SES. The extent to which SES modifies the effect of ethnicity on the risk of chronic diseases may depend on the nature of the disease.


Assuntos
Doença Crônica/epidemiologia , Disparidades nos Níveis de Saúde , Classe Social , Adolescente , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Asiático/estatística & dados numéricos , Doença Crônica/economia , Doença Crônica/etnologia , Estudos Transversais , Feminino , Mapeamento Geográfico , Hispânico ou Latino/estatística & dados numéricos , Humanos , Classificação Internacional de Doenças , Modelos Logísticos , Masculino , Registro Médico Coordenado , Prontuários Médicos , Pessoa de Meia-Idade , Minnesota/epidemiologia , Prevalência , Características de Residência/classificação , População Branca/estatística & dados numéricos , Adulto Jovem
6.
Personal Disord ; 6(1): 12-21, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25330183

RESUMO

Narcissistic personality disorder is associated with distinguishing traits including self-enhancement, arrogance, and intense reactivity to ego threat. Theoretical accounts of narcissism suggest these heterogeneous behaviors reflect a defensive motivational style that functions to both uphold and protect the self-concept. However, the notion that narcissism can be characterized by grandiose and vulnerable dimensions raises the possibility that these diverse behaviors represent distinct expressions of narcissistic defensiveness. The present study examined whether both dimensions exhibit a general defensive style marked by selective attention to evaluative stimuli or are differentially associated with selective attention to positive and negative information, respectively. Using a dot probe task consisting of valenced and neutral trait adjectives, we evaluated these hypotheses in a group of male offenders. Results indicated that vulnerable narcissism was associated with attention biases for both positive and negative stimuli, though the dimension was further distinguished by disengagement difficulties and a greater recognition memory bias in response to negative words. Conversely, grandiose narcissism was associated with increased accuracy when attending to positive stimuli and directing attention away from negative stimuli. Overall, these findings suggest narcissistic individuals share motivated selective attention in response to evaluative stimuli, while simultaneously highlighting important phenotypic differences between grandiose and vulnerable dimensions.


Assuntos
Atenção/fisiologia , Criminosos/psicologia , Narcisismo , Transtornos da Personalidade/fisiopatologia , Adulto , Humanos , Masculino , Prisioneiros/psicologia
7.
Biol Psychol ; 96: 86-93, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24355244

RESUMO

The P3 amplitude reduction is one of the most common correlates of externalizing. However, few studies have used experimental manipulations designed to challenge different cognitive functions in order to clarify the processes that impact this reduction. To examine factors moderating P3 amplitude in trait externalizing, we administered an n-back task that manipulated cognitive control demands, working memory load, and incentives to a sample of male offenders. Offenders with high trait externalizing scores did not display a global reduction in P3 amplitude. Rather, the negative association between trait externalizing and P3 amplitude was specific to trials involving inhibition of a dominant response during infrequent stimuli, in the context of low working memory load, and incentives for performance. In addition, we discuss the potential implications of these findings for externalizing-related psychopathologies. The results complement and expand previous work on the process-level dysfunction contributing to externalizing-related deficits in P3.


Assuntos
Cognição/fisiologia , Potenciais Evocados P300/fisiologia , Controle Interno-Externo , Memória de Curto Prazo/fisiologia , Motivação , Prisioneiros/psicologia , Adolescente , Adulto , Eletroencefalografia , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Personalidade , Transtornos Relacionados ao Uso de Substâncias/psicologia , Inquéritos e Questionários , Adulto Jovem
8.
J Neurosci ; 33(39): 15324-32, 2013 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-24068799

RESUMO

Phylogenetically the most ancient sense, olfaction is characterized by a unique intimacy with the emotion system. However, mechanisms underlying olfaction-emotion interaction remain unclear, especially in an ever-changing environment and dynamic internal milieu. Perturbing the internal state with anxiety induction in human subjects, we interrogated emotion-state-dependent olfactory processing in a functional magnetic resonance imaging (fMRI) study. Following anxiety induction, initially neutral odors become unpleasant and take longer to detect, accompanied by augmented response to these odors in the olfactory (anterior piriform and orbitofrontal) cortices and emotion-relevant pregenual anterior cingulate cortex. In parallel, the olfactory sensory relay adapts with increased anxiety, incorporating amygdala as an integral step via strengthened (afferent or efferent) connections between amygdala and all levels of the olfactory cortical hierarchy. This anxiety-state-dependent neural circuitry thus enables cumulative infusion of limbic affective information throughout the olfactory sensory progression, thereby driving affectively charged olfactory perception. These findings could constitute an olfactory etiology model of emotional disorders, as exaggerated emotion-olfaction interaction in negative mood states turns innocuous odors aversive, fueling anxiety and depression with rising ambient sensory stress.


Assuntos
Adaptação Fisiológica , Ansiedade/fisiopatologia , Rede Nervosa/fisiologia , Percepção Olfatória , Olfato , Adolescente , Adulto , Tonsila do Cerebelo/fisiologia , Ansiedade/psicologia , Córtex Cerebral/fisiologia , Feminino , Humanos , Masculino , Odorantes
9.
J Neurosci ; 33(2): 587-94, 2013 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-23303938

RESUMO

Threat evokes a variety of negative emotions such as fear, anger, and disgust. Whereas they elicit distinct and even opposite facial, sensory, and autonomic reflexes, threat-related emotions often converge in the actions they prompt (e.g., negative evaluation and avoidance). Here, we tested a unifying hypothesis that threat processing initially involves specialized encoding of individual subtypes to support discrete reflexive operations that later gives way to generalized elaborate analysis to facilitate convergent defensive behavior. Combining event-related potentials (ERPs) and a defensive context in human subjects, we compared temporal courses of perceptual analysis of two threat subtypes-fear and disgust. Indeed, fear enhanced and disgust suppressed early (115 ms) response in visual cortex, accentuating specialized sensory encoding of threat subtypes in accordance with the opposite behavioral and autonomic reflexes they typically elicit. By contrast, later ERP waveforms evoked by fear and disgust merged gradually over time (130-425 ms). Consistently, visual ERPs to anthropomorphic Greeble objects presented after fear versus disgust images also overlapped despite their clear departure from the neutral condition, paralleled by comparable exaggeration in Greeble imminence perception in the two threat (vs neutral) conditions. This later confluence of neural and behavioral response between fear and disgust thus highlights general threat categorization in high-level, downstream perception of threat. By delineating the temporal dynamics in perceiving individual threat emotions, our findings thus provide some of the first evidence to reconcile multidimensional and unidimensional aspects of information processing within the domain of threat, shedding new light on symptom heterogeneity across the anxiety disorder spectrum.


Assuntos
Medo/fisiologia , Generalização Psicológica/fisiologia , Percepção/fisiologia , Análise de Variância , Interpretação Estatística de Dados , Eletroencefalografia , Emoções/fisiologia , Potenciais Evocados/fisiologia , Expressão Facial , Feminino , Humanos , Julgamento , Imageamento por Ressonância Magnética , Masculino , Estimulação Luminosa , Reprodutibilidade dos Testes , Adulto Jovem
10.
Biol Psychol ; 92(2): 365-72, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23201037

RESUMO

Perceived control over a gambling outcome leads individuals to accept more and larger bets, increased risk-taking. Pathological gamblers, however, do not diminish risk-taking when control is absent, suggesting an illusion of control. To evaluate neural correlates of perceived control in gamblers, this study compared magnetoencephalography responses of 36 pathological (PG) and 36 non-pathological gamblers (NPG) during the Georgia Gambling Task. PGs exhibited greater activity in bilateral primary sensory regions. An interaction between pathology and control over the gambling task was observed bilaterally throughout dorsal and ventral visual processing streams, and lateral PFC. NPGs showed decreased activity when control was absent. Groups did not differ in response to potential bet cost. These findings provide neurophysiological evidence that PGs suffer from the pattern of risk-taking associated with perceived control, even when no control exists. They suggest that gambling pathology contributes to differential processing of gambling stimuli other than potential costs or rewards.


Assuntos
Mapeamento Encefálico , Encéfalo/fisiopatologia , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/patologia , Tomada de Decisões/fisiologia , Jogo de Azar/complicações , Encéfalo/patologia , Feminino , Humanos , Imageamento Tridimensional , Julgamento , Magnetocardiografia , Masculino , Testes Neuropsicológicos , Tempo de Reação , Assunção de Riscos , Estudantes , Universidades
11.
Chemosens Percept ; 5(1): 37-45, 2012 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-22866182

RESUMO

The current conceptualization of threat processing in anxiety emphasizes emotional hyper-reactivity, which mediates various debilitating symptoms and derangements in anxiety disorders. Here, we investigated olfactory sensory perception of threat as an alternative causal mechanism of anxiety. Combining an event-related functional magnetic resonance imaging paradigm with an olfactory discrimination task, we examined how anxiety modulates basic perception of olfactory threats at behavioral and neural levels. In spite of subthreshold presentation of negative and neutral odors, a positive systematic association emerged between negative odor discrimination accuracy and anxiety levels. In parallel, the right olfactory primary (piriform) cortex indicated augmented response to subthreshold negative (vs. neutral) odors as a function of individual differences in anxiety. Using a psychophysiological interaction analysis, we further demonstrated amplified functional connectivity between the piriform cortex and emotion-related regions (amygdala and hippocampus) in response to negative odor, particularly in anxiety. Finally, anxiety also intensified skin conductance response to negative (vs. neutral) odor, indicative of potentiated emotional arousal to subliminal olfactory threat in anxiety. Together, these findings elucidate exaggerated processing of olfactory threat in anxiety across behavioral, autonomic physiological, and neural domains. Critically, our data emphasized anxiety-related hyper-sensitivity of the primary olfactory cortex and basic olfactory perception in response to threat, highlighting neurosensory mechanisms that may underlie the deleterious symptoms of anxiety.

12.
J Neurosci ; 31(9): 3429-34, 2011 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-21368054

RESUMO

The extant literature indicates that threat enhances cognitive processing and physiological arousal. However, being largely based on fear-relevant processes, this model overlooks other adaptive but inhibitory mechanisms in alternative threat emotions such as disgust. Combining visual event-related potential (VERP) indices (P1 and P250/s) with a simple visual search task, we contrasted behavioral and neural responses to carefully controlled images of fear, disgust, or neutral emotion (as a baseline condition). Consistent with previous findings, fear augmented VERP amplitude and electrical current density in associate visual cortices, paralleled by facilitated object search. Conversely, disgust generated an opposite pattern of effects, reflected by reduced VERP potentials and diminished visual cortical current density along with slowed search time. These results demonstrated suppressed sensory perceptual and attentional processing of disgust information, akin to the central ecological function of disgust to minimize contact with contagious objects to avoid contamination and disease. Notably, the rapid emergence of discrimination between fear and disgust as early as 96 ms after stimulus emphasizes the efficiency of emotional classification not only between threat and nonthreat, but also within the threat domain itself. Finally, a positive correlation between anxiety and behavioral and neural divergence of fear and disgust further indicates that despite their convergence on the core affect of threat, disgust and fear instigate distinct response profiles, providing novel insights into the manifold and sometimes paradoxical symptomology in anxiety disorders.


Assuntos
Atenção/fisiologia , Medo/fisiologia , Medo/psicologia , Estimulação Luminosa/métodos , Percepção Visual/fisiologia , Eletroencefalografia/métodos , Emoções/fisiologia , Feminino , Humanos , Masculino , Tempo de Reação/fisiologia , Sensação/fisiologia , Adulto Jovem
13.
Psychophysiology ; 45(4): 511-5, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18282197

RESUMO

Self-serving attributions occur when negative personal outcomes are ascribed to external circumstances and when positive outcomes are ascribed to internal factors. Individuals strategically employ the self-serving bias to maintain and protect positive self-views. The current study investigated the neural correlates of the self-serving bias using dense array EEG, giving 20 participants false (success or failure) feedback during a facial working memory task. Participants made self-serving attributions during the task, primarily following failure feedback. Voltage and source analyses in response to attribution stimuli revealed that, compared to self-serving responses, non-self-serving attributions were preceded by enhanced dorsomedial frontal cortex activity. This finding suggests that unbiased attributions require greater self-control, overriding the automatic tendency for self-enhancement.


Assuntos
Potenciais Evocados/fisiologia , Detecção de Mentiras/psicologia , Adolescente , Adulto , Cognição/fisiologia , Eletroencefalografia , Expressão Facial , Retroalimentação Psicológica , Feminino , Humanos , Masculino , Memória de Curto Prazo/fisiologia
14.
Soc Neurosci ; 1(2): 124-34, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-18633781

RESUMO

Past research indicates that social exclusion leads to self-control failure. The present research examined the neural substrates of this effect. Participants were randomly assigned to either a social exclusion (n=15) or control (n=15) condition. Self-control was assessed by having participants solve 180 moderately difficult math problems while measuring how quickly they identified a supplied answer as correct or incorrect. Magnetoencephalography (MEG) was used to assess neural activity during this task. Socially excluded participants showed lesser activity in occipital and parietal cortex from 100-350 ms after the presentation of the math problems. When presented with the answers, socially excluded participants showed lesser activity in several regions, including occipital, parietal, and right prefrontal cortex from 100-300 ms post-stimulus. Furthermore, activation in the parietal and right prefrontal cortex mediated exclusion-control performance differences on math problems. The findings suggest that social exclusion interferes with the executive control of attention, and this effect is manifest in specific aspects of cognitive performance and brain function.


Assuntos
Controle Interno-Externo , Magnetoencefalografia/métodos , Rede Nervosa/fisiologia , Isolamento Social/psicologia , Atenção/fisiologia , Feminino , Humanos , Relações Interpessoais , Desempenho Psicomotor/fisiologia , Autoimagem
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