Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 50
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Healthc Q ; 24(1): 44-49, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33864440

RESUMO

Pandemics are associated with heightened distress among healthcare workers (HCWs). We report qualitative findings from a two-stage survey administered to HCWs at a large acute care hospital in Ontario during the COVID-19 pandemic to identify their concerns and wellness needs. Responses reflected HCWs' desires to be heard, protected, prepared, supported and cared for by the organization. HCWs' concerns were diverse and dynamic, reflecting the specific circumstances of their work and personal lives as well as the shifting landscape of the pandemic. We discuss implications for organizations seeking to promote and protect HCWs' psychological well-being and resilience during pandemics.


Assuntos
COVID-19/epidemiologia , Pessoal de Saúde/psicologia , COVID-19/prevenção & controle , COVID-19/terapia , Pessoal de Saúde/normas , Pessoal de Saúde/estatística & dados numéricos , Humanos , Doenças Profissionais/prevenção & controle , Doenças Profissionais/psicologia , Recursos Humanos em Hospital/psicologia , Recursos Humanos em Hospital/normas , Recursos Humanos em Hospital/estatística & dados numéricos , Inquéritos e Questionários
2.
Acad Psychiatry ; 43(5): 507-511, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31161575

RESUMO

OBJECTIVE: The primary purpose of this paper is to report on psychiatry residents' perceptions of what is important when receiving feedback from evaluators. METHODS: In January 2018, as part of the Harvard South Shore Psychiatry Residency Training Program's (HSS) ongoing local quality improvement efforts to enhance the delivery and effectiveness of feedback that residents receive from faculty during training, the authors disseminated a survey to psychiatry residents (n = 31) at HSS. Residents rated the level of importance of 17 statements pertaining to the way feedback is delivered. Two open-ended prompts also allowed respondents to share examples of growth-oriented and unhelpful feedback they have received during residency. RESULTS: Twenty-seven residents responded (87% response rate). Eighty-one percent rated "the evaluator models the same behavior they're encouraging" as "extremely important" when receiving feedback. Many residents also rated the following survey items as "extremely important": "confidence in the evaluator's clinical and interpersonal skills" (63.0%), "amount of time the evaluator observed the resident" (51.9%), "there is a way to fix a performance deficit" (51.8%), and "specific feedback based off the resident's work" (48.1%). Conversely, only 11.1% of residents rated the feedback sandwich as "extremely important." CONCLUSIONS: Despite a small sample size, this project demonstrated that, when receiving feedback, the majority of psychiatry residents strongly value when evaluators model the targeted behavior. The feedback sandwich was least important to residents. This project underscores the importance of evaluators serving as role models in the context of feedback, and findings can be used in faculty development activities focused on feedback delivery best practices.


Assuntos
Competência Clínica/normas , Retroalimentação , Internato e Residência , Psiquiatria/educação , Desenvolvimento de Pessoal , Boston , Educação de Pós-Graduação em Medicina , Humanos , Percepção , Melhoria de Qualidade
3.
Acad Psychiatry ; 38(2): 213-6, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24519802

RESUMO

OBJECTIVE: Although significant attention has been paid to the number of hours worked by residents, little consideration has been given to how the hours are assigned. This project describes an alternative to having Chief Residents manually create on-call schedules. In order to enhance objectivity and transparency, reduce perceived inequities in the process, and reduce inter-resident conflict, Harvard South Shore Psychiatry Residency Training Program experimented with a computer-generated on-call schedule. METHOD: A locally written MATLAB script generated an on-call schedule for academic year (AY) 2012-2013. Measurements to assess the manual scheduling method (from AY 2011-2012) and the computer-generated method included the balance in the total number of hours assigned to individual residents; the number of call switches over two six-month periods; and survey of the residents' perception of fairness of the two scheduling methods and preferences. RESULTS: A retrospective analysis of the AY 2011-2012 Chief Resident-generated call schedule found a range of differences of up to 25.8% between total hours assigned to individual residents in a given year. In the AY 2012-2013 computer-generated schedule, the differences in total hours assigned were reduced to a maximum of 6.1%. There were 63% fewer call switches resulting from the computer-generated as compared to the Chief Resident-generated method. Resident survey response rate was 76%. Seventy-seven percent of resident respondents (N = 22) perceived the computer-generated method to be fairer, and 90.9% of residents preferred having a summary table of hours of call per resident. Residents perceived the computer-generated method as resulting in less inter-resident conflict. CONCLUSION: Methods for assigning duty hour schedules that are transparent, equitable, and require less Chief involvement may result in perceptions of greater fairness and less inter-resident conflict.


Assuntos
Internato e Residência/organização & administração , Automação de Escritório/estatística & dados numéricos , Admissão e Escalonamento de Pessoal/organização & administração , Médicos/organização & administração , Adulto , Conflito Psicológico , Humanos , Internato e Residência/normas , Automação de Escritório/normas , Admissão e Escalonamento de Pessoal/normas , Estudos Retrospectivos
4.
Acad Psychiatry ; 38(2): 135-40, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24643397

RESUMO

OBJECTIVE: The American Association of Directors of Psychiatric Residency Training (AADPRT) Task Force on Neuropsychiatry and Neuroscience Education of Psychiatry Residents was established in 2011 with the charge to seek information about what the field of psychiatry considers the core topics in neuropsychiatry and neuroscience to which psychiatry residents should be exposed; whether there are any "competencies" in this area on which the field agrees; whether psychiatry departments have the internal capacity to teach these topics if they are desirable; and what the reception would be for "portable curricula" in neuroscience. METHODS: The task force reviewed the literature and developed a survey instrument to be administered nationwide to all psychiatry residency program directors. The AADPRT Executive Committee assisted with the survey review, and their feedback was incorporated into the final instrument. RESULTS: In 2011-2012, 226 adult and child and adolescent psychiatry residency program directors responded to the survey, representing over half of all US adult and child psychiatry training directors. About three quarters indicated that faculty resources were available in their departments but 39% felt the lack of neuropsychiatry faculty and 36% felt the absence of neuroscience faculty to be significant barriers. Respectively, 64 and 60% felt that neuropsychiatry and psychiatric neuroscience knowledge were very important or critically important to the provision of excellent care. Ninety-two percent were interested in access to portable neuroscience curricula. CONCLUSIONS: There is widespread agreement among training directors on the importance of neuropsychiatry and neuroscience knowledge to general psychiatrists but barriers to training exist, including some programs that lack faculty resources and a dearth of portable curricula in these areas.


Assuntos
Currículo/normas , Internato e Residência/normas , Neurociências/educação , Psiquiatria/educação , Psiquiatria do Adolescente/educação , Adulto , Atitude , Psiquiatria Infantil/educação , Humanos , Internato e Residência/organização & administração , Pessoa de Meia-Idade , Neuropsiquiatria/educação , Médicos/psicologia , Inquéritos e Questionários/estatística & dados numéricos
5.
Psychiatry Investig ; 20(11): 1077-1085, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37997336

RESUMO

OBJECTIVE: This study investigated the influence of psychosocial factors on medical students' quality of life (QOL). METHODS: A total of 408 medical students participated in this study. We collected data on participants' sociodemographic details, symptoms of depression and Internet addiction, self-esteem, social support, and QOL. QOL was assessed using the World Health Organization Quality of Life-Abbreviated form, which has four domains (physical health, psychological health, social relationships, and environment). A stepwise multiple linear regression model was constructed to identify factors' independent impact on QOL. RESULTS: Higher levels of depression and Internet addiction were associated with lower scores in all domains of QOL, whereas higher levels of self-esteem and social support were associated with higher scores. Being in third-year versus first-year was associated with higher scores in the physical health and environment domains. Living alone or in dormitories, low or middle socioeconomic status, and insufficient or moderate pocket money were associated with lower scores in the environment domain. Additionally, female students displayed significantly lower scores for physical health, psychological health, and environment than male students, but not for social relationships. There were significant differences in certain domains of QOL due to sociodemographic factors. CONCLUSION: This study demonstrates the psychosocial factors influencing medical students' QOL. Educational strategies focusing on strengthening self-esteem and social support as well as preventing depression and Internet addiction may contribute to improving medical students' QOL.

6.
Front Psychol ; 14: 1235211, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37842704

RESUMO

Introduction: The COVID-19 pandemic has resulted in heightened moral distress among health care workers (HCWs) worldwide. Past research has shown that effective leadership may mitigate potential for the development of moral distress. However, no research to date has considered the mechanisms by which leadership might have an influence on moral distress. We sought to evaluate longitudinally whether Canadian HCWs' perceptions of workplace support and ethical work environment would mediate associations between leadership and moral distress. Methods: A total of 239 French- and English-speaking Canadian HCWs employed during the COVID-19 pandemic were recruited to participate in a longitudinal online survey. Participants completed measures of organizational and supervisory leadership at baseline and follow-up assessments of workplace support, perceptions of an ethical work environment, and moral distress. Results: Associations between both organizational and supervisory leadership and moral distress were fully mediated by workplace supports and perceptions of an ethical work environment. Discussion: To ensure HCW well-being and quality of care, it is important to ensure that HCWs are provided with adequate workplace supports, including manageable work hours, social support, and recognition for efforts, as well as an ethical workplace environment.

9.
Schizophr Res ; 110(1-3): 127-39, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19328654

RESUMO

BACKGROUND: Previously, we reported abnormal volume and global shape in the caudate nucleus in schizotypal personality disorder (SPD). Here, we use a new shape measure which importantly permits local in addition to global shape analysis, as well as local correlations with behavioral measures. METHODS: Thirty-two female and 15 male SPDs, and 29 female and 14 male normal controls (NCLs), underwent brain magnetic resonance imaging (MRI). We assessed caudate shape measures using spherical harmonic-point distribution model (SPHARM-PDM) methodology. RESULTS: We found more pronounced global shape differences in the right caudate in male and female SPD, compared with NCLs. Local shape differences, principally in the caudate head, survived statistical correction on the right. Also, we performed correlations between local surface deformations with clinical measures and found significant correlations between local shape deflated deformations in the anterior medial surface of the caudate with verbal learning capacity in female SPD. CONCLUSIONS: Using SPHARM-PDM methodology, we found both global and local caudate shape abnormalities in male and female SPD, particularly right-sided, and largely restricted to limbic and cognitive anterior caudate. The most important and novel findings were bilateral statistically significant correlations between local surface deflations in the anterior medial surface of the head of the caudate and verbal learning capacity in female SPD. By extension, these local caudate correlation findings implicate the ventromedial prefrontal cortex (vmPFC), which innervates that area of the caudate, and demonstrate the utility of local shape analysis to investigate the relationship between specific subcortical and cortical brain structures in neuropsychiatric conditions.


Assuntos
Mapeamento Encefálico , Núcleo Caudado/patologia , Transtorno da Personalidade Esquizotípica/patologia , Adulto , Feminino , Lateralidade Funcional , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Modelos Neurológicos , Testes Neuropsicológicos , Fatores Sexuais , Estatística como Assunto , Adulto Jovem
10.
Schizophr Res ; 103(1-3): 26-39, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18555666

RESUMO

BACKGROUND: One of the cardinal features of schizotypal personality disorder (SPD) is language abnormalities. The focus of this study was to determine whether or not there are also processing abnormalities of pure tones differing in pitch and duration in SPD. METHODS: Thirteen neuroleptic-naïve male subjects met full criteria for SPD and were group-matched on age and parental socio-economic status to 13 comparison subjects. Verbal learning was measured with the California Verbal Learning Test. Heschl's gyrus volumes were measured using structural MRI. Whole-brain fMRI activation patterns in an auditory task of listening to tones including pitch and duration deviants were compared between SPD and control subjects. In a second and separate ROI analysis we found that peak activation in superior temporal gyrus (STG), Brodmann Areas 41 and 42, was correlated with verbal learning and clinical measures derived from the SCID-II interview. RESULTS: In the region of the STG, SPD subjects demonstrated more activation to pitch deviants bilaterally (p<0.001); and to duration deviants in the left hemisphere (p=0.005) (two-sample t). SPD subjects also showed more bilateral parietal cortex activation to duration deviants. In no region did comparison subjects activate more than SPD subjects in either experiment. Exploratory correlations for SPD subjects suggest a relationship between peak activation on the right for deviant tones in the pitch experiment with odd speech and impaired verbal learning. There was no difference between groups on Heschl's gyrus volume. CONCLUSIONS: These data suggest that SPD subjects have inefficient or hyper-responsive processing of pure tones both in terms of pitch and duration deviance that is not attributable to smaller Heschl's gyrus volumes. Finally, these auditory processing abnormalities may have significance for the odd speech heard in some SPD subjects and downstream language and verbal learning deficits.


Assuntos
Transtornos da Percepção Auditiva/diagnóstico , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Discriminação da Altura Tonal/fisiologia , Transtorno da Personalidade Esquizotípica/diagnóstico , Lobo Temporal/fisiopatologia , Percepção do Tempo/fisiologia , Adulto , Atenção/fisiologia , Transtornos da Percepção Auditiva/fisiopatologia , Mapeamento Encefálico , Dominância Cerebral/fisiologia , Potenciais Evocados Auditivos/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Lobo Parietal/fisiopatologia , Valores de Referência , Linguagem do Esquizofrênico , Transtorno da Personalidade Esquizotípica/fisiopatologia , Aprendizagem Verbal/fisiologia
12.
Schizophr Res ; 89(1-3): 49-58, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17027236

RESUMO

OBJECTIVE: This study examined MRI hippocampal volume and cavum septi pellucidi (CSP) in female subjects with schizotypal personality disorder (SPD) and comparison subjects. METHOD: MRI was performed on 20 SPD and 29 comparison subjects with delineation of left and right hippocampi. Number of slices containing the CSP was counted. Subjects were given a working memory task, the Delayed Alternation task and other measures of working memory including the Wechsler Memory Test-Revised and the California Verbal Learning Test. Clinical measures were derived from the SCID-II. RESULTS: SPD females evinced bilaterally smaller hippocampal volumes compared with non-psychiatric female subjects (15.1% on left, 15.7% on right). Additionally, SPD subjects showed statistically significantly more slices containing CSP, and a trend level difference when large CSP was defined as four or more slices (20% vs. 6.9%). SPD subjects demonstrated more errors, more perseverations, and a trend toward more failure to maintain set on the Delayed Alternating task, which were associated with smaller left hippocampal volumes. There was no difference between groups in logical memory, verbal learning or semantic clustering nor a significant correlation between these measures and hippocampal volumes. Clinically, in SPD subjects, right hippocampal volumes correlated negatively with odd appearance/behavior and positively with suspiciousness/paranoia, and odd speech was positively correlated with the number of slices containing a CSP in exploratory analyses. CONCLUSIONS: Female SPD subjects showed bilaterally smaller hippocampal volumes and larger CSP than comparison subjects, similar to what has been shown in schizophrenia. Moreover, these abnormalities have clinically significant associations which may help to explain some of the manifestations of the disorder.


Assuntos
Hipocampo/patologia , Processamento de Imagem Assistida por Computador , Imageamento Tridimensional , Imageamento por Ressonância Magnética , Transtorno da Personalidade Esquizotípica/diagnóstico , Septo Pelúcido/patologia , Adolescente , Adulto , Atenção/fisiologia , Dominância Cerebral/fisiologia , Feminino , Humanos , Memória de Curto Prazo/fisiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Orientação/fisiologia , Resolução de Problemas/fisiologia , Linguagem do Esquizofrênico , Estatística como Assunto , Comportamento Estereotipado/fisiologia
13.
Schizophr Res ; 92(1-3): 197-206, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17350226

RESUMO

Schizophrenia is characterized by deficits in cognition as well as visual perception. There have, however, been few magnetic resonance imaging (MRI) studies of the occipital lobe as an anatomically defined region of interest in schizophrenia. To examine whether or not patients with chronic schizophrenia show occipital lobe volume abnormalities, we measured gray matter volumes for both the primary visual area (PVA) and the visual association areas (VAA) using MRI based neuroanatomical landmarks and three-dimensional information. PVA and VAA gray matter volumes were measured using high-spatial resolution MRI in 25 male patients diagnosed with chronic schizophrenia and in 28 male normal controls. Chronic schizophrenia patients showed reduced bilateral VAA gray matter volume (11%), compared with normal controls, whereas patients showed no group difference in PVA gray matter volume. These results suggest that reduced bilateral VAA may be a neurobiological substrate of some of the deficits observed in early visual processing in schizophrenia.


Assuntos
Imageamento por Ressonância Magnética , Lobo Occipital/anatomia & histologia , Esquizofrenia/patologia , Adulto , Doença Crônica , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência
14.
Arch Gen Psychiatry ; 63(10): 1090-100, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17015811

RESUMO

CONTEXT: Structural brain abnormalities, including larger cerebrospinal fluid (CSF) volumes, have been observed in men diagnosed as having schizotypal personality disorder (SPD). OBJECTIVES: To determine whether women with SPD have abnormalities similar to those of men with SPD and to elucidate specific SPD regional volume deficits and symptom correlations. DESIGN: Naturalistic study. SETTING AND PARTICIPANTS: Thirty neuroleptic-naive women with SPD and 29 female control subjects, both recruited from the community. Participants were group matched for age, parental socioeconomic status, handedness, and IQ. INTERVENTIONS: A new segmentation method was applied to magnetic resonance images to automatically parcel the images into CSF, gray matter, and white matter. The neocortex was manually separated from subcortical and other nonneocortical structures. Voxel-based morphometry was applied to determine global and regional volume deficits. MAIN OUTCOME MEASURES: Left and right neocortical gray matter, white matter, and CSF relative volumes as well as clinical symptoms from the Structured Interview for Schizotypy and the Schizotypal Personality Questionnaire-Brief Version. RESULTS: Smaller left (3.84%) and right (3.83%) neocortical gray matter relative volumes associated with larger left (9.66%) and right (9.61%) sulcal CSF relative volumes were found in women with SPD compared with controls. Voxel-based morphometry showed that the neocortical deficits in SPD were especially prominent in the left superior and middle temporal gyri, left inferior parietal region with postcentral gyrus, and right superior frontal and inferior parietal gyri. In the SPD group, larger lateral ventricle volumes correlated with more severe symptoms on the Structured Interview for Schizotypy and the Schizotypal Personality Questionnaire-Brief Version. CONCLUSIONS: The smaller neocortical gray matter volume and larger sulcal CSF volume provide evidence of the brain basis of this personality disorder and emphasize the communality of brain abnormalities in the schizophrenia spectrum.


Assuntos
Córtex Cerebral/patologia , Líquido Cefalorraquidiano/fisiologia , Neocórtex/patologia , Transtorno da Personalidade Esquizotípica/patologia , Adulto , Mapeamento Encefálico , Feminino , Lateralidade Funcional , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Transtorno da Personalidade Esquizotípica/líquido cefalorraquidiano , Transtorno da Personalidade Esquizotípica/diagnóstico , Fatores Sexuais
15.
Biol Psychiatry ; 60(1): 40-8, 2006 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-16460694

RESUMO

BACKGROUND: The caudate nucleus might contribute to the psychopathological and cognitive deficits observed in schizotypal personality disorder (SPD), a schizophrenia spectrum disorder. Here we focused on female patients, because this group is underrepresented in studies of SPD and schizophrenia, and we might learn more about the caudate and clinical and cognitive impairments that are unique to female patients diagnosed with SPD. METHODS: Magnetic resonance imaging scans, obtained on a 1.5-T magnet with 1.5-mm contiguous slices, were used to measure the caudate in 32 neuroleptic-naïve women with SPD and in 29 female normal comparison subjects. Subjects were group-matched for age, parental socioeconomic status, and intelligence quotient. RESULTS: We found significantly reduced left and right caudate relative volume (8.3%, 7.7%) in female SPD subjects compared with normal comparison subjects. In female SPD subjects, we found significant correlations between smaller total caudate relative volume and worse performance on the Wisconsin Card Sorting test (nonperseverative errors) and on the California Verbal Learning Test (verbal memory and learning), and significant correlations between smaller total caudate relative volume and both positive and negative symptoms on the Structured Interview for Schizotypy. CONCLUSIONS: These findings demonstrate that, for female SPD subjects, smaller caudate volume is associated with poorer cognitive performance and more schizotypal symptomatology.


Assuntos
Núcleo Caudado/patologia , Transtornos Cognitivos/fisiopatologia , Transtorno da Personalidade Esquizoide/patologia , Transtorno da Personalidade Esquizoide/fisiopatologia , Adolescente , Adulto , Análise de Variância , Mapeamento Encefálico , Estudos de Casos e Controles , Feminino , Lateralidade Funcional , Humanos , Imageamento por Ressonância Magnética/métodos , Pessoa de Meia-Idade , Testes Neuropsicológicos/estatística & dados numéricos , Transtorno da Personalidade Esquizoide/complicações , Aprendizagem Verbal/fisiologia
16.
Biol Psychiatry ; 58(6): 468-78, 2005 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-15978550

RESUMO

BACKGROUND: Using diffusion tensor imaging (DTI), we previously reported abnormalities in two critical white matter tracts in schizophrenia, the uncinate fasciculus (UF) and the cingulum bundle (CB), both related to fronto-temporal connectivity. Here, we investigate these two bundles in unmedicated subjects with schizotypal personality disorder (SPD). METHODS: Fifteen male SPD subjects and 15 male control subjects were scanned with line-scan DTI. Fractional anisotropy (FA) and mean diffusivity (D(m)) were used to quantify water diffusion, and cross-sectional area was defined with a directional threshold method. Exploratory correlation analyses were evaluated with Spearman's rho, followed by post hoc hierarchical regression analyses. RESULTS: We found bilaterally reduced FA in the UF of SPD subjects. For CB, there was no significant group difference for FA or D(m) measures. Additionally, in SPD, reduced FA in the right UF was correlated with clinical symptoms, including ideas of reference, suspiciousness, restricted affect, and social anxiety. In contrast, left UF area was correlated with measures of cognitive function, including general intelligence, verbal and visual memory, and executive performance. CONCLUSIONS: These findings in SPD suggest altered fronto-temporal connectivity through the UF, similar to findings in schizophrenia, and intact neocortical-limbic connectivity through the CB, in marked contrast with what has been reported in schizophrenia.


Assuntos
Imagem de Difusão por Ressonância Magnética , Lobo Frontal/metabolismo , Transtorno da Personalidade Esquizotípica/metabolismo , Transtorno da Personalidade Esquizotípica/patologia , Lobo Temporal/metabolismo , Adolescente , Adulto , Análise de Variância , Mapeamento Encefálico , Estudos de Casos e Controles , Lobo Frontal/patologia , Lateralidade Funcional , Humanos , Processamento de Imagem Assistida por Computador/métodos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos/estatística & dados numéricos , Transtorno da Personalidade Esquizotípica/fisiopatologia , Estatística como Assunto , Lobo Temporal/patologia
17.
Am J Psychiatry ; 162(1): 65-70, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15625203

RESUMO

OBJECTIVE: The purpose of this study was to investigate abnormalities in the surface complexity of the prefrontal cortex and in the hemispheric asymmetry of cortical complexity in first-episode patients with schizophrenia. METHOD: An estimate of the surface complexity of the prefrontal cortex was derived from the number of voxels along the boundary between gray matter and CSF. Magnetic resonance imaging scans were acquired from patients with a first episode of schizophrenia (N=17), patients with a first episode of affective psychosis (N=17), and normal comparison subjects (N=17), age-matched within a narrow age range (18-29 years). This study group was the focus of a previous study that showed lower prefrontal cortical volume in patients with schizophrenia. RESULTS: Prefrontal cortical complexity was not significantly different among the groups. However, the schizophrenia patients differed significantly from the normal comparison subjects in asymmetry, with the schizophrenia patients showing less left-greater-than-right asymmetry in cortical complexity than the comparison subjects. CONCLUSIONS: An abnormal pattern of asymmetry in the prefrontal cortex of first-episode patients with schizophrenia provides evidence for a neurodevelopmental mechanism in the etiology of schizophrenia.


Assuntos
Imageamento por Ressonância Magnética , Córtex Pré-Frontal/anatomia & histologia , Esquizofrenia/diagnóstico , Adolescente , Adulto , Transtornos Psicóticos Afetivos/diagnóstico , Transtornos Psicóticos Afetivos/patologia , Ventrículos Cerebrais/anatomia & histologia , Feminino , Lateralidade Funcional , Humanos , Masculino , Córtex Pré-Frontal/patologia , Escalas de Graduação Psiquiátrica , Esquizofrenia/patologia
18.
Schizophr Res ; 78(2-3): 297-308, 2005 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-15985362

RESUMO

INTRODUCTION: Schizotypal personality disorder (SPD) shares with schizophrenia many biological features, yet little is known about the clinical characteristics of persons diagnosed with this disorder. This report describes the clinical, cognitive and socio-occupational characteristics of a community sample of subjects diagnosed with SPD. METHOD: Sixty-four male and 40 female neuroleptic-naive DSM-IV SPD subjects and 59 male and 51 female comparison subjects were recruited from the community for a total sample of 214 subjects. Demographic and cognitive differences between groups and, within the SPD group, the effect of gender on clinical features, such as the SPD criteria, SAPS, SANS, Schizotypal Personality Questionnaire, and co-morbidity, were examined using ANOVA and Chi-square distributions. RESULTS: SPD subjects, in contrast to comparison subjects, had significantly lower socio-economic status, poorer social relationships and skills, and lower vocabulary scores. Furthermore, SPD subjects demonstrated more impairment on Vocabulary scores than on Block Design, as measured by the WAIS-R, a pattern not seen in comparison subjects. In the SPD cohort, positive symptoms predominated and nearly half were co-morbid for major depression. With respect to gender, male SPD subjects, compared with female SPD subjects, evinced significantly more negative symptoms, fewer friends, had more odd speech, and were more likely to also suffer from paranoid and narcissistic personality disorders. In contrast to male SPD subjects, female SPD subjects perceived themselves to be more disorganized. CONCLUSIONS: SPD subjects, similar to schizophrenics, are impaired socially, occupationally, and cognitively, particularly in the area of verbal measures. Moreover, male SPD subjects may be more severely affected than female SPD subjects across multiple domains of functioning.


Assuntos
Antipsicóticos , Transtornos Cognitivos/epidemiologia , Transtorno da Personalidade Esquizotípica/epidemiologia , Comportamento Social , Adolescente , Adulto , Transtornos Cognitivos/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Psicologia
19.
Schizophr Res ; 74(1): 43-9, 2005 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-15694753

RESUMO

The purpose of this study was to compare the cognitive profiles of men and women with clinically defined schizotypal personality disorder (SPD). We examined the neuropsychological profile of SPD in 26 right-handed females and 31 right-handed males who met DSM-IV criteria for SPD, and matched comparison subjects. Cognitive performance was assessed on measures of abstraction, verbal and spatial intelligence, learning and memory, language, attention, and motor skills. Neuropsychological profiles were constructed by standardizing test scores based on the means and standard deviations of comparison groups matched for sex, age, handedness, ethnicity and parental SES. Overall, SPD subjects showed mild, general decrements in performance in most cognitive domains. However, unlike male SPD subjects, female SPDs did not show relative deficits in verbal learning and abstraction. The results suggest a less severe pattern of cognitive deficits in women with SPD compared to men, consistent with hypotheses of gender differences in cognitive function in schizophrenia.


Assuntos
Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/epidemiologia , Transtorno da Personalidade Esquizotípica/epidemiologia , Adulto , Transtornos Cognitivos/fisiopatologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Lobo Frontal/fisiopatologia , Humanos , Sistema Límbico/fisiopatologia , Masculino , Transtorno da Personalidade Esquizotípica/diagnóstico , Transtorno da Personalidade Esquizotípica/fisiopatologia , Índice de Gravidade de Doença , Fatores Sexuais , Lobo Temporal/fisiopatologia , Escalas de Wechsler
20.
Schizophr Res ; 80(2-3): 243-51, 2005 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-16168625

RESUMO

Studies of the five-factor model of personality in schizotypal personality disorder (SPD) have produced inconsistent results, particularly with respect to openness. In the present study, the NEO-FFI was used to measure five-factor personality dimensions in 28 community volunteers with SPD and 24 psychiatrically healthy individuals. Standard multivariate statistical analyses were used to evaluate personality differences as a function of diagnosis and gender. Individuals with SPD had significantly higher levels of neuroticism and significantly lower levels of extraversion, agreeableness and conscientiousness than those without SPD. Female, but not male, SPD subjects had significantly higher openness levels than their healthy counterparts, and this gender-specific group difference persisted when SPD symptom severity was statistically controlled. These findings suggest that gender-associated differences in openness may account for prior inconsistent findings regarding this dimension, and they further underscore the importance of examining gender effects in future studies of SPD.


Assuntos
Transtorno da Personalidade Esquizotípica/psicologia , Adulto , Extroversão Psicológica , Análise Fatorial , Feminino , Humanos , Masculino , Transtornos Neuróticos/epidemiologia , Determinação da Personalidade , Transtorno da Personalidade Esquizotípica/diagnóstico , Transtorno da Personalidade Esquizotípica/epidemiologia , Índice de Gravidade de Doença , Fatores Sexuais
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA