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1.
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.

2.
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.

3.
PLoS One ; 18(10): e0292745, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37819931

RESUMO

RATIONALE: Methamphetamine use and related harms have risen at alarming rates. While several psychosocial and pharmacologic interventions have been described in the literature, there is uncertainty regarding the best approach for the management of methamphetamine use disorder (MUD) and problematic methamphetamine use (PMU). We conducted a scoping review of recent systematic reviews (SR), clinical practice guidelines (CPG), and primary controlled studies of psychosocial and pharmacologic treatments for MUD/PMU. METHODS: Guided by an a priori protocol, electronic database search updates (e.g., MEDLINE, Embase) were performed in February 2022. Screening was performed following a two-stage process, leveraging artificial intelligence to increase efficiency of title and abstract screening. Studies involving individuals who use methamphetamine, including key subgroups (e.g. those with mental health comorbidities; adolescents/youths; gay, bisexual, and other men who have sex with men) were sought. We examined evidence related to methamphetamine use, relapse, use of other substances, risk behaviors, mental health, harms, and retention. Figures, tables and descriptive synthesis were used to present findings from the identified literature. RESULTS: We identified 2 SRs, one CPG, and 54 primary studies reported in 69 publications that met our eligibility criteria. Amongst SRs, one concluded that psychostimulants had no effect on methamphetamine abstinence or treatment retention while the other reported no effect of topiramate on cravings. The CPG strongly recommended psychosocial interventions as well as self-help and family support groups for post-acute management of methamphetamine-related disorders. Amongst primary studies, many interventions were assessed by only single studies; contingency management was the therapy most commonly associated with evidence of potential effectiveness, while bupropion and modafinil were analogously the most common pharmacologic interventions. Nearly all interventions showed signs of potential benefit on at least one methamphetamine-related outcome measure. DISCUSSION: This scoping review provides an overview of available interventions for the treatment of MUD/PMU. As most interventions were reported by a single study, the effectiveness of available interventions remains uncertain. Primary studies with longer durations of treatment and follow-up, larger sample sizes, and of special populations are required for conclusive recommendations of best approaches for the treatment of MUD/PMU.


Assuntos
Estimulantes do Sistema Nervoso Central , Metanfetamina , Minorias Sexuais e de Gênero , Masculino , Adolescente , Humanos , Metanfetamina/efeitos adversos , Homossexualidade Masculina/psicologia , Inteligência Artificial , Estimulantes do Sistema Nervoso Central/efeitos adversos
4.
Subst Abuse ; 17: 11782218231186065, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37476501

RESUMO

Background: Despite an increase in methamphetamine use and subsequent hospitalizations, the majority of Canadian hospitals currently lack harm reduction strategies for substance use. This can mean that people with lived experience of methamphetamine use are faced with a number of difficult decisions to make when admitted to hospital. Caring for people with lived experience of methamphetamine use can also be problematic with zero tolerance policies requiring abstinence to be maintained. This analysis set out to understand potential health care issues due to a lack of harm reduction strategies from the prospective of people with lived experience of methamphetamine use as well as health care/service professionals. Methods: Based on a larger study, this secondary analysis explored issues discussed by people with lived experience of methamphetamine use and health care/service professionals regarding the challenges of providing harm reduction approaches in the hospital setting. A total of 108 individuals with lived experience of methamphetamine use completed a qualitative component of a mixed-method interview. In addition, 31 health care/service professionals participated in virtual focus groups and one-to-one interviews. Responses were analyzed using an ethnographic thematic approach. Results: People with lived experience of methamphetamine use reported 3 choices upon admission: leave or avoid the hospital, stay but experience unsupported withdrawal, or stay but hide their substance usage from health care professionals. Health care/service professionals described 2 options: uphold zero tolerance that can lead to stigma and a lack of knowledge regarding addiction, or accept harm reduction but be unable to implement such strategies. This could lead to health being compromised due to policy and practice that requires abstinence. Neither group of participants described a good choice for them. Conclusion: Current policy and education related to substance use needs to be revised.

5.
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
6.
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
8.
MedEdPORTAL ; 14: 10766, 2018 10 19.
Artigo em Inglês | MEDLINE | ID: mdl-30800966

RESUMO

Introduction: Health care is increasingly being provided by interprofessional teams. Academic medical centers (AMCs) need to offer educational experiences for trainees to work on these teams. Few resources exist to guide educational leaders in developing and implementing these experiences to meet the unique needs of their AMC. A commonly used planning tool is the strengths, weaknesses, opportunities, and threats (SWOT) analysis, which can help organizations identify issues and develop strategies that overcome barriers to program implementation. Methods: This workshop focuses on teaching participants to use a SWOT analysis to develop interprofessional learning activities. The workshop contains both a didactic component and an experiential component. The workshop was offered as a 60-minute webinar and a 120-minute in-person presentation. The additional hour during the in-person presentation was used for experiential learning activities. Eighty-four educators from a number of health professions attended the webinar, and approximately 50 medical educators attended the in-person presentation. Results: Participants reported satisfaction with the workshop and found its content met stated learning objectives. Participants believed they gained both the knowledge to develop a strategic plan to implement interprofessional educational programming and the ability to apply this knowledge at their AMC. Participants reported that their confidence in using strategic planning increased due to workshop participation. Discussion: This workshop represents a first step in helping educational leaders learn and use strategies to develop and implement interprofessional educational programming unique to their AMC. This programming is important for training future health care providers to work on interprofessional health care teams.


Assuntos
Pessoal de Saúde/educação , Centros Médicos Acadêmicos/métodos , Centros Médicos Acadêmicos/organização & administração , Adulto , Educação/métodos , Feminino , Pessoal de Saúde/tendências , Humanos , Relações Interprofissionais , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
12.
Acad Psychiatry ; 38(3): 383-7, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24664604

RESUMO

The authors describe the Harvard South Shore Psychiatry Residency Training Program curriculum "Creating Opportunities for Organizational Leadership," an innovative, multitiered, resident-driven, outcome-focused set of experiences designed to develop residents' leadership skills in personal leadership, organizational leadership, negotiation, strategic thinking, and systems redesign.


Assuntos
Internato e Residência/organização & administração , Liderança , Psiquiatria/educação , Melhoria de Qualidade/organização & administração , Boston , Currículo , Humanos , Internato e Residência/métodos , Mentores , Cultura Organizacional , Psiquiatria/métodos , Psiquiatria/normas , Melhoria de Qualidade/normas
13.
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
14.
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
16.
Schizophr Res ; 151(1-3): 113-23, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24161536

RESUMO

BACKGROUND: Schizotypal personality disorder (SPD) is considered a schizophrenia spectrum disorder, sharing with schizophrenia cognitive, neuropsychological, epidemiological, and biological characteristics. Working memory may be one area of shared deficit, although to date, this is only the second study to investigate working memory in SPD using fMRI. METHODS: In a block-design fMRI study, fifteen antipsychotic-naïve SPD and sixteen healthy control subjects performed blocks of a 2back visual working memory task and 0back continuous performance task while undergoing whole-brain fMRI at 3T. Whole-brain analyses were performed for the 0back>rest (fixation baseline) and the 2back>0back contrasts (isolating the working memory component from the visual perception and attention component). Parameter estimates were extracted to determine whether observed differences were due to task-induced activation and/or deactivation. RESULTS: Activation differences emerged between the two groups, without differences in task performance. In the 0back task, SPD showed decreased task-induced activation of the left postcentral gyrus. In the 2back>0back contrast, HC showed greater task-induced activation of the left posterior cingulate gyrus, superior temporal gyrus, insula, and middle frontal gyrus. These differences were due to SPD subjects' decreased task-induced activation in the left posterior cingulate gyrus, and task-induced deactivation in the remaining regions. CONCLUSIONS: These findings suggest that compared to HC subjects, individuals with SPD may achieve comparable working memory performance. However, differences emerge at the level of functional neural activation, attributable to different task-induced activation and deactivation patterns. Such differential recruitment of neural resources may be beneficial, contributing to SPD subjects' ability to perform these tasks comparably to HC subjects.


Assuntos
Encéfalo/irrigação sanguínea , Imageamento por Ressonância Magnética , Transtornos da Memória/etiologia , Memória de Curto Prazo/fisiologia , Transtorno da Personalidade Esquizotípica/complicações , Transtorno da Personalidade Esquizotípica/patologia , Adulto , Análise de Variância , Encéfalo/patologia , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Transtornos da Memória/diagnóstico , Pessoa de Meia-Idade , Testes Neuropsicológicos , Oxigênio , Escalas de Graduação Psiquiátrica , Adulto Jovem
17.
JAMA Psychiatry ; 70(4): 361-72, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23389420

RESUMO

IMPORTANCE: Some, but not all, previous magnetic resonance imaging studies have indicated smaller cortical and local gray matter volumes (GMVs) in men with schizotypal personality disorder (SPD) compared with healthy control (HC) subjects. Thus, there is need for a whole-brain comparison to resolve inconsistencies and provide hitherto generally absent data on the association between GMV and symptoms. OBJECTIVE: To use voxel-based morphometry to evaluate a large sample of neuroleptic-naive men with SPD compared with group-matched HC subjects on local and global GMV and to identify associations with symptoms, especially negative symptoms. Also, to determine whether age-related GMV reductions are greater in men with SPD than HC subjects, providing presumptive evidence on possible progression. DESIGN, SETTING, AND PARTICIPANTS: This naturalistic study involved 54 neuroleptic-naive men with SPD and 54 male HC subjects aged 18 to 55 years recruited from the community and scanned on the same 1.5-T GE magnetic resonance imaging scanner. Participants were group matched on age, socioeconomic status, handedness, and IQ. MAIN OUTCOME MEASURES: Cross-sectional voxel-based morphometry, GMV in subjects with SPD and HC participants, and the relationship to clinical symptoms. RESULTS: A voxelwise analysis showed participants with SPD had significantly smaller GMV in the left superior temporal gyrus and widespread frontal, frontolimbic, and parietal regions compared with HC subjects. Most of these regional volumes were strikingly and significantly correlated with negative symptoms: the more the volume reduction, the more negative symptoms. Global cortical GMV and most regional GMV showed significant negative relationships with age in both those with SPD and HC subjects, without any group by age interactions. CONCLUSIONS AND RELEVANCE: Men with SPD showed global and widespread smaller regional GMV. The regional structural abnormalities were correlated with the severity of a participant's negative symptoms. While the pattern of GMV loss is similar to that in schizophrenia, the similar patterns of HC-SPD age-related GMV reduction suggest that SPD showed no progressive GMV loss, pointing to an important difference in the biological mechanisms of SPD and schizophrenia.


Assuntos
Encéfalo/patologia , Transtorno da Personalidade Esquizotípica/patologia , Adolescente , Adulto , Fatores Etários , Estudos de Casos e Controles , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neuroimagem , Escalas de Graduação Psiquiátrica , Transtorno da Personalidade Esquizotípica/psicologia , Adulto Jovem
18.
Schizophr Res ; 142(1-3): 20-30, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23068317

RESUMO

OBJECTIVE: Patients with schizophrenia speak with blunted vocal affect but little is known regarding the prosody of persons with schizotypal personality disorder (SPD). This work examined expressive prosody in SPD, its relationship to brain structure, and outlined a framework for measuring elements of prosody in clinical populations. METHODS: Twenty-eight antipsychotic-naïve SPD subjects were matched with 27 healthy comparison (HC) subjects. Subjects read aloud short sentences and responded to probes to record both predetermined and self-generated speech samples. Samples were analyzed acoustically (pause proportion, duration, attack, and pitch variability) and subjectively by raters (amount of pauses, degree of emotion portrayed, and how much they wanted to hear more from the subjects) on paragraph, sentence, word, word-fragment, and syllable levels. Alexithymia and ability to self-monitor behavior were compared between groups. The pars opercularis was manually traced on structural MRI data. RESULTS: SPD subjects' speech had significantly more pauses, was slower, had less pitch variability, and expressed less emotion than HC subjects. Pitch variability correlated with socio-economic status achievement. There was no difference between groups in left or right pars opercularis volumes. A statistically significant correlation suggested that smaller left pars opercularis volumes in SPD subjects correlated with more pauses and less emotion. SPD subjects reported more alexithymia and difficulty self-monitoring their behavior compared with controls. In SPD subjects the high alexithymia correlated with raters not wanting to hear more from them and SPD subjects' inability to modulate their social behavior correlated with their having fewer friends. Thus, the SPD subjects exhibited insight. CONCLUSIONS: SPD subjects displayed significant prosodic deficits that were measurable in speech samples as brief as a word-fragment. The determinants of these deficits are not known although these may include a dysfunctional pars opercularis. These data add to the nascent literature describing social cognition deficits in SPD.


Assuntos
Transtornos da Linguagem/etiologia , Transtorno da Personalidade Esquizotípica/complicações , Adolescente , Adulto , Sintomas Afetivos/etiologia , Encéfalo/patologia , Estudos de Casos e Controles , Feminino , Humanos , Transtornos da Linguagem/diagnóstico , Masculino , Pessoa de Meia-Idade , Acústica da Fala , Percepção da Fala , Adulto Jovem
19.
Schizophr Res ; 131(1-3): 242-9, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21640557

RESUMO

BACKGROUND: Patients with schizophrenia have deficits in facial affect expression and detection that hinder social interactions. The goal of this study was to examine whether or not epidemiologically-related antipsychotic-naïve schizotypal personality disorder (SPD) subjects would have similar deficits as patients with schizophrenia. METHODS: Matched SPD and healthy comparison (HC) subjects were asked to identify the eight classic emotions (SPD N=55, HC N=67) and to discriminate gender. Subjects (SPD N=22, HC N=17) were also photographed while displaying the same emotional expressions. Raters scored the subjects' facial expressions along several dimensions. RESULTS: SPD subjects compared with HC were slower and less accurate in identifying facial expressions. This may have been driven by deficits in identifying gender. Although raters were able to identify correctly SPD and HC subjects' expressions equally well, raters found SPD subjects' facial expressions to be more odd, more ambiguous, and the subjects less attractive in general compared with HC subjects. Raters were less confident in their ability to correctly interpret SPD subjects' facial expressions and raters were less comfortable with the idea of spending time with the SPD subjects compared with HC subjects. CONCLUSIONS: SPD subjects face two hurdles in terms of daily social interactions. They have problems both in correctly interpreting others' facial expressions and in generating socially attractive and unambiguous facial expressions.


Assuntos
Emoções/fisiologia , Expressão Facial , Reconhecimento Psicológico/fisiologia , Psicologia do Esquizofrênico , Transtorno da Personalidade Esquizotípica/fisiopatologia , Transtorno da Personalidade Esquizotípica/psicologia , Adulto , Análise de Variância , Feminino , Humanos , Masculino , Estimulação Luminosa/métodos , Escalas de Graduação Psiquiátrica , Tempo de Reação/fisiologia , Fatores Sexuais , Adulto Jovem
20.
Schizophr Res ; 121(1-3): 75-89, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20362418

RESUMO

INTRODUCTION: Persons diagnosed with schizophrenia demonstrate deficits in prosody recognition. To examine prosody along the schizophrenia spectrum, antipsychotic-naïve schizotypal personality disorder (SPD) subjects and healthy control subjects were compared. It was hypothesized that SPD subjects would perform more poorly; with cognitive and demographic factors contributing to the poor performance. The superior temporal gyrus (STG) was selected as the region-of-interest (ROI) given its known abnormalities in SPD and its important role in the processing of prosody. METHODS: SPD and healthy comparison (HC) subjects were matched on age, IQ, and parental social-economic status (PSES). Cognitive measures included the Speech Sound Perception Test (SSPT) to examine phonological processing (SPD=68, HC=74) and the Verbal Fluency task to examine executive functioning (SPD=129, HC=138). The main experiment was a novel fMRI task of prosody identification using semantically neutral sentences spoken with emotional prosody (SPD=16, HC=13). Finally, volumetric measurement of the superior temporal sulcus (STS), a key region for processing prosody, and partially overlapping with the STG, was performed (SPD=30, HC=30). RESULTS: Phonological processing and executive functioning were both impaired in SPD subjects compared with HC subjects. Contrary to the prediction, SPD subjects, as a group, were similar to HC subjects in terms of correctly indentifying the emotion conveyed and reaction time. Within the SPD group, prosody identification accuracy was influenced by executive functioning, IQ and perhaps PSES, relationships not found with HC subjects. Phonological perception aided prosody identification in both diagnostic groups. As expected, both groups activated the STG while performing the prosody identification task. However, SPD subjects may have been less "efficient" in their recruitment of STG neurons. Finally, SPD subjects demonstrated a trend toward smaller STS volumes on the left, particularly the lower bank. CONCLUSIONS: These data suggest that subtle differences between SPD and controls in phonological processing, executive functioning, IQ, and possibly PSES, contributed to difficulty in processing prosody for some SPD subjects.


Assuntos
Transtornos da Percepção Auditiva/etiologia , Transtornos da Percepção Auditiva/patologia , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Transtorno da Personalidade Esquizotípica/complicações , Lobo Temporal/irrigação sanguínea , Estimulação Acústica/métodos , Adolescente , Adulto , Análise de Variância , Emoções/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Oxigênio/sangue , Tempo de Reação/fisiologia , Transtorno da Personalidade Esquizotípica/patologia , Percepção da Fala/fisiologia , Estatística como Assunto , Lobo Temporal/patologia , Lobo Temporal/fisiopatologia , Adulto Jovem
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