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1.
Med Teach ; 46(3): 349-358, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-37688773

RESUMO

PURPOSE: The purpose of this study was to enrich understanding about the perceived benefits and drawbacks of constructed response short-answer questions (CR-SAQs) in preclerkship assessment using Norcini's criteria for good assessment as a framework. METHODS: This multi-institutional study surveyed students and faculty at three institutions. A survey using Likert scale and open-ended questions was developed to evaluate faculty and student perceptions of CR-SAQs using the criteria of good assessment to determine the benefits and drawbacks. Descriptive statistics and Chi-square analyses are presented, and open responses were analyzed using directed content analysis to describe benefits and drawbacks of CR-SAQs. RESULTS: A total of 260 students (19%) and 57 faculty (48%) completed the survey. Students and faculty report that the benefits of CR-SAQs are authenticity, deeper learning (educational effect), and receiving feedback (catalytic effect). Drawbacks included feasibility, construct validity, and scoring reproducibility. Students and faculty found CR-SAQs to be both acceptable (can show your reasoning, partial credit) and unacceptable (stressful, not USMLE format). CONCLUSIONS: CR-SAQs are a method of aligning innovative curricula with assessment and could enrich the assessment toolkit for medical educators.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Humanos , Currículo , Docentes , Aprendizagem , Reprodutibilidade dos Testes
2.
Teach Learn Med ; 35(5): 609-622, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35989668

RESUMO

PROBLEM: Some medical schools have incorporated constructed response short answer questions (CR-SAQs) into their assessment toolkits. Although CR-SAQs carry benefits for medical students and educators, the faculty perception that the amount of time required to create and score CR-SAQs is not feasible and concerns about reliable scoring may impede the use of this assessment type in medical education. INTERVENTION: Three US medical schools collaborated to write and score CR-SAQs based on a single vignette. Study participants included faculty question writers (N = 5) and three groups of scorers: faculty content experts (N = 7), faculty non-content experts (N = 6), and fourth-year medical students (N = 7). Structured interviews were performed with question writers and an online survey was administered to scorers to gather information about their process for creating and scoring CR-SAQs. A content analysis was performed on the qualitative data using Bowen's model of feasibility as a framework. To examine inter-rater reliability between the content expert and other scorers, a random selection of fifty student responses from each site were scored by each site's faculty content experts, faculty non-content experts, and student scorers. A holistic rubric (6-point Likert scale) was used by two schools and an analytic rubric (3-4 point checklist) was used by one school. Cohen's weighted kappa (κw) was used to evaluate inter-rater reliability. CONTEXT: This research study was implemented at three US medical schools that are nationally dispersed and have been administering CR-SAQ summative exams as part of their programs of assessment for at least five years. The study exam question was included in an end-of-course summative exam during the first year of medical school. IMPACT: Five question writers (100%) participated in the interviews and twelve scorers (60% response rate) completed the survey. Qualitative comments revealed three aspects of feasibility: practicality (time, institutional culture, teamwork), implementation (steps in the question writing and scoring process), and adaptation (feedback, rubric adjustment, continuous quality improvement). The scorers' described their experience in terms of the need for outside resources, concern about lack of expertise, and value gained through scoring. Inter-rater reliability between the faculty content expert and student scorers was fair/moderate (κw=.34-.53, holistic rubrics) or substantial (κw=.67-.76, analytic rubric), but much lower between faculty content and non-content experts (κw=.18-.29, holistic rubrics; κw=.59-.66, analytic rubric). LESSONS LEARNED: Our findings show that from the faculty perspective it is feasible to include CR-SAQs in summative exams and we provide practical information for medical educators creating and scoring CR-SAQs. We also learned that CR-SAQs can be reliably scored by faculty without content expertise or senior medical students using an analytic rubric, or by senior medical students using a holistic rubric, which provides options to alleviate the faculty burden associated with grading CR-SAQs.


Assuntos
Avaliação Educacional , Estudantes de Medicina , Humanos , Reprodutibilidade dos Testes , Estudos de Viabilidade , Aprendizagem
3.
Med Teach ; 45(12): 1387-1394, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37270764

RESUMO

PURPOSE: With undergraduate medical education shifting to an integrated, student-centered approach, self-regulated learning (SRL) skills are critical for student success. Educational research holds that learning strategy effectiveness is context dependent. Our study aims to explore what strategies medical students use to support SRL when engaged in the specific context of an integrated, student-centered curriculum. APPROACH: This study took place in two medical schools with integrated, student-centered curricula. Semi-structured interviews were conducted with first-year medical students from both schools, asking them to reflect on the learning strategies they used throughout their first year of medical school. Interview data was analyzed first deductively using the SRL framework and then inductively to understand the specific strategies being used. FINDINGS: Students engaged in strategies to support SRL in ways that were unique to the integrated, student-centered context. We found that medical students developed strategies to plan for integration and building connections across material during all three phases of self-regulated learning. INSIGHTS: By identifying specific tasks and behaviors students utilized during their first year of medical school, this study provides a roadmap that students and educators can use to help students become self-regulated learners.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Humanos , Aprendizagem , Currículo , Faculdades de Medicina
4.
BMC Med Educ ; 23(1): 360, 2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-37217893

RESUMO

BACKGROUND: Medical students are expected to be competent in interpreting electrocardiograms (ECGs) by the time they graduate, but many are unable to master this skill. Studies suggest that e-modules are an effective way to teach ECG interpretation, however they are typically evaluated for use during clinical clerkships. We sought to determine if an e-module could replace a didactic lecture to teach ECG interpretation during a preclinical cardiology course. METHODS: We developed an asynchronous, interactive e-module that consisted of narrated videos, pop-up questions and quizzes with feedback. Participants were first year medical students who were either taught ECG interpretation during a 2-hour didactic lecture (control group) or were given unlimited access to the e-module (e-module group). First-year internal medicine residents (PGY1 group) were included to benchmark where ECG interpretation skills should be at graduation. At three time-points (pre-course, post-course, and 1-year follow-up), participants were evaluated for ECG knowledge and confidence. A mixed-ANOVA was used to compare groups over time. Students were also asked to describe what additional resources they used to learn ECG interpretation throughout the study. RESULTS: Data was available for 73 (54%) students in the control group, 112 (81%) in the e-module group and 47 (71%) in the PGY1 group. Pre-course scores did not differ between the control and e-module groups (39% vs. 38%, respectively). However, the e-module group performed significantly better than the control group on the post-course test (78% vs. 66%). In a subsample with 1-year follow-up data, the e-module group's performance decreased, and the control group remained the same. The PGY1 groups' knowledge scores were stable over time. Confidence in both medical student groups increased by the end of the course, however only pre-course knowledge and confidence were significantly correlated. Most students relied on textbooks and course materials for learning ECG, however online resources were also utilized. CONCLUSIONS: An asynchronous, interactive e-module was more effective than a didactic lecture for teaching ECG interpretation, however continued practice is needed regardless of how students learn to interpret ECGs. Various ECG resources are available to students to support their self-regulated learning.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Humanos , Avaliação Educacional , Aprendizagem , Eletrocardiografia
5.
Teach Learn Med ; 34(4): 425-433, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-32088996

RESUMO

Problem: The ability to document a patient encounter is integral for any physician. Previous studies indicate that medical students' note writing skills are poor due to a lack of formal clinical documentation instruction. Barriers to formally teaching students how to write patient notes include the significant time burden and variability in faculty feedback. Implementing a near-peer teaching program to teach students how to write a patient note can overcome these barriers and fill this curricular gap. Intervention: Fourth year medical students who completed a Teaching in Medicine elective course were trained to provide individual feedback to 1st and 2nd year students on note writing as a part of their Introduction to Clinical Medicine course. In order to determine the effect of this two year, near-peer feedback program on note writing skills, we analyzed students' scores on the note writing portion of two Objective Structured Clinical Exams that took place at the end of the 2nd and 3rd years of medical school. Context: The near-peer feedback sessions were implemented in the Fall of 2013 during the preclinical years of the medical school curriculum. Data from students who received near-peer feedback (N = 112) were compared to a historical control group who did not receive near-peer feedback on their note writing (N = 110). Objective Structured Clinical Exam scores that were specific to note writing skills, including the history, physical exam, and differential diagnosis subscales were examined. Impact: The near-peer feedback had a positive impact on the quality of patient notes. On the end of the 2nd year Objective Structured Clinical Exam, the near-peer feedback intervention group outperformed the no feedback group on the history and physical exam subscale scores but not on the differential diagnosis subscale score. One year later, the near-peer feedback intervention group continued to outperform the no feedback group on the physical exam subscale score, but not the history or the differential diagnosis subscale scores. Lessons Learned: Near-peer teaching improves student documentation of the history and physical exam, however only the effects on the physical exam portion persist into the clinical years of training. Writing up a differential diagnosis is a skill that develops through the clerkship experience regardless of exposure to feedback in the preclinical years. Implementing near-peer teaching in the medical school setting is feasible and can provide students with valuable learning experiences without relying on clinical faculty.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Competência Clínica , Currículo , Retroalimentação , Humanos , Grupo Associado , Redação
6.
J Am Coll Nutr ; 40(2): 111-118, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32223644

RESUMO

Objective: The patient-physician encounter provides an ideal opportunity to assess a patient's dietary history and its impact on total health. However, nutrition assessments and counseling in physician-patient encounters is often lacking. Insufficient nutrition education during medical school may lead to insecurity in assessing and counseling patients.Methods: Physicians and registered dietitians (RD) co-developed and co-facilitated a nutrition workshop for first-year medical students. Goals included increasing recognition of nutrition's impact on health and promoting student confidence and skills when attaining a nutrition history, assessing risk factors, and advising.Results: Seventy percent of students attested to having "sufficient" knowledge to counsel a patient on nutrition after the session compared to 38% before (Z= -4.46, p < 0.001). Sixty eight percent felt comfortable completing a nutritional assessment after the session compared to 35% before (Z= -4.30, p < 0.001). Sixty-three percent felt confident in advising patients about nutrition after the session compared to 32% before (Z= -4.20, p < 0.001). Students also significantly outperformed a control cohort on a nutrition-related component of an Objective Standardized Clinical Examination.Conclusions: Clinical nutrition education can be successfully integrated into the medical school curriculum as early as the first year. Interprofessional collaboration with RDs provided evidence-based content and authentic clinical experience in both the development of the workshop and in facilitating student discussion.


Assuntos
Ciências da Nutrição , Estudantes de Medicina , Aconselhamento , Currículo , Humanos , Faculdades de Medicina
7.
Med Teach ; 43(6): 700-708, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33657329

RESUMO

Medical students provide clinical teaching faculty with feedback on their skills as educators through anonymous surveys at the end of their clerkship rotation. Because faculty are in a position of power, students are hesitant to provide candid feedback. Our objective was to determine if medical students were willing to provide negative upward feedback to clinical faculty and describe how they conveyed their feedback. A qualitative analysis of third year medical students' open-ended comments from evaluations of six clerkships was performed using politeness theory as a conceptual framework. Students were asked to describe how the clerkship enhanced their learning and how it could be improved. Midway through the academic year, instructions to provide full names of faculty/residents was added. Overall, there were significantly more comments on what worked well than suggestions for improvement regarding faculty/residents. Instructing students to name-names increased the rate of naming from 35% to 75% for what worked well and from 13% to 39% for suggestions for improvement. Hedging language was included in 61% of suggestions for improvement, but only 2% of what worked well. Students described the variability of their experience, used passive language and qualified negative experiences with positive ones. Medical students may use linguistic strategies, such as impersonalizing and hedging, to mitigate the impact of negative upward feedback. Working towards a culture that supports upward feedback would allow students to feel more comfortable providing candid comments about their experience.


Assuntos
Estágio Clínico , Educação de Graduação em Medicina , Estudantes de Medicina , Competência Clínica , Docentes de Medicina , Docentes de Enfermagem , Retroalimentação , Humanos , Aprendizagem
8.
Med Teach ; 42(7): 822-827, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32401093

RESUMO

This cross-sectional study involved matriculating, mid-level and graduating medical students (n = 723) who participated in specific transition courses in our medical school curriculum between August 2016 and March 2019. We used a mixed-methods approach (survey and analysis of narrative comments) to study the evolution in perception of the learning environment by medical students with increasing clinical exposure using four different video vignettes. Differences in student perceptions of mistreatment exists at various levels of training. Compared to graduating students, matriculating students were more likely to perceive reprimanding a student on being late as appropriate behavior (80.5% vs 53.3%, p = 0.001), whereas a significantly higher proportion of the graduating students (15.3%, p = 0.001) perceived it as mistreatment. A majority of the matriculating students (84%, p = 0.001) considered the case of an eager student as mistreatment, while a significantly higher proportion of the graduating students (59.5%, p = 0.001) did not think it was mistreatment. Qualitative analysis of comments from students at different stages of training displayed an increased appreciation of their professional responsibilities and nuanced appreciation of body language and tone as contributing factors in determining whether a situation represented inappropriate behavior. Our results demonstrate that students' perceptions of inappropriate behaviors evolve with increased clinical exposure.


Assuntos
Estágio Clínico , Educação de Graduação em Medicina , Estudantes de Medicina/psicologia , Estudos Transversais , Currículo , Feminino , Humanos , Masculino , Percepção , Inquéritos e Questionários , Adulto Jovem
9.
Med Teach ; 41(1): 99-106, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29527967

RESUMO

AIM: Curriculum reform in medical schools continues to be an ever-present and challenging activity in medical education. This paper describes one school's experiences with specific curricular innovations that were developed or adapted and targeted to meet a clear set of curricular goals during the curriculum reform process. Those goals included: (a) promoting active learning and learner engagement; (b) establishing early professional identity; and (c) developing physician competencies in an integrated and contextual manner while allowing for individualized learning experiences for the millennial student. METHODS: Six specific innovations championed by the school are described in detail. These included Themes in Medical Education, Translational Pillars, Stony Brook Teaching Families, Transition Courses, Educational Continuous Quality Improvement Processes, and our Career Advising Program. Development of the ideas and design of the innovations were done by faculty and student teams. RESULTS: We discuss successes and ongoing challenges with these innovations which are currently in the fourth year of implementation. CONCLUSIONS: Our curriculum reform has emphasized the iterative process of curriculum building. Based on our experience, we discuss general and practical guidelines for curriculum innovation in its three phases: setting the stage, implementation, and monitoring for the achievement of intended goals.


Assuntos
Currículo/tendências , Educação Médica/tendências , Melhoria de Qualidade/tendências , Faculdades de Medicina/organização & administração , Competência Clínica , Humanos , Inovação Organizacional , Estados Unidos
10.
Neuroimage ; 146: 959-970, 2017 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-27746386

RESUMO

Recent years have witnessed an increasing number of multisite MRI functional connectivity (fcMRI) studies. While multisite studies provide an efficient way to accelerate data collection and increase sample sizes, especially for rare clinical populations, any effects of site or MRI scanner could ultimately limit power and weaken results. Little data exists on the stability of functional connectivity measurements across sites and sessions. In this study, we assess the influence of site and session on resting state functional connectivity measurements in a healthy cohort of traveling subjects (8 subjects scanned twice at each of 8 sites) scanned as part of the North American Prodrome Longitudinal Study (NAPLS). Reliability was investigated in three types of connectivity analyses: (1) seed-based connectivity with posterior cingulate cortex (PCC), right motor cortex (RMC), and left thalamus (LT) as seeds; (2) the intrinsic connectivity distribution (ICD), a voxel-wise connectivity measure; and (3) matrix connectivity, a whole-brain, atlas-based approach to assessing connectivity between nodes. Contributions to variability in connectivity due to subject, site, and day-of-scan were quantified and used to assess between-session (test-retest) reliability in accordance with Generalizability Theory. Overall, no major site, scanner manufacturer, or day-of-scan effects were found for the univariate connectivity analyses; instead, subject effects dominated relative to the other measured factors. However, summaries of voxel-wise connectivity were found to be sensitive to site and scanner manufacturer effects. For all connectivity measures, although subject variance was three times the site variance, the residual represented 60-80% of the variance, indicating that connectivity differed greatly from scan to scan independent of any of the measured factors (i.e., subject, site, and day-of-scan). Thus, for a single 5min scan, reliability across connectivity measures was poor (ICC=0.07-0.17), but increased with increasing scan duration (ICC=0.21-0.36 at 25min). The limited effects of site and scanner manufacturer support the use of multisite studies, such as NAPLS, as a viable means of collecting data on rare populations and increasing power in univariate functional connectivity studies. However, the results indicate that aggregation of fcMRI data across longer scan durations is necessary to increase the reliability of connectivity estimates at the single-subject level.


Assuntos
Mapeamento Encefálico/métodos , Encéfalo/fisiologia , Imageamento por Ressonância Magnética/métodos , Adulto , Feminino , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética/instrumentação , Masculino , Estudos Multicêntricos como Assunto , Vias Neurais/fisiologia , Reprodutibilidade dos Testes , Adulto Jovem
11.
Depress Anxiety ; 33(1): 56-65, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26477532

RESUMO

BACKGROUND: Major depressive disorder (MDD) is a debilitating disorder characterized by widespread brain abnormalities. The literature is mixed as to whether or not white matter abnormalities are associated with MDD. This study sought to examine fractional anisotropy (FA) in white matter tracts in individuals with MDD using diffusion tensor imaging (DTI). METHODS: 139 participants with MDD and 39 healthy controls (HC) in a multisite study were included. DTI scans were acquired in 64 directions and FA was determined in the brain using four methods: region of interest (ROI), tract-based spatial statistics (TBSS), and diffusion tractography. Diffusion connectometry was used to identify white matter pathways associated with MDD. RESULTS: There were no significant differences when comparing FA in MDD and HC groups using any method. In the MDD group, there was a significant relationship between depression severity and FA in the right medial orbitofrontal cortex, and between age of onset of MDD and FA in the right caudal anterior cingulate cortex using the ROI method. There was a significant relationship between age of onset and connectivity in the thalamocortical radiation, inferior longitudinal fasciculus, and cerebellar tracts using diffusion connectometry. CONCLUSIONS: The lack of group differences in FA and connectometry analysis may result from the clinically heterogenous nature of MDD. However, the relationship between FA and depression severity may suggest a state biomarker of depression that should be investigated as a potential indicator of response. Age of onset may also be a significant clinical feature to pursue when studying white matter tracts.


Assuntos
Conectoma , Transtorno Depressivo Maior/patologia , Imagem de Tensor de Difusão , Imageamento por Ressonância Magnética , Substância Branca/patologia , Adulto , Anisotropia , Feminino , Humanos , Masculino
12.
Hum Brain Mapp ; 36(7): 2558-79, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25821147

RESUMO

Multisite neuroimaging studies can facilitate the investigation of brain-related changes in many contexts, including patient groups that are relatively rare in the general population. Though multisite studies have characterized the reliability of brain activation during working memory and motor functional magnetic resonance imaging tasks, emotion processing tasks, pertinent to many clinical populations, remain less explored. A traveling participants study was conducted with eight healthy volunteers scanned twice on consecutive days at each of the eight North American Longitudinal Prodrome Study sites. Tests derived from generalizability theory showed excellent reliability in the amygdala ( Eρ2 = 0.82), inferior frontal gyrus (IFG; Eρ2 = 0.83), anterior cingulate cortex (ACC; Eρ2 = 0.76), insula ( Eρ2 = 0.85), and fusiform gyrus ( Eρ2 = 0.91) for maximum activation and fair to excellent reliability in the amygdala ( Eρ2 = 0.44), IFG ( Eρ2 = 0.48), ACC ( Eρ2 = 0.55), insula ( Eρ2 = 0.42), and fusiform gyrus ( Eρ2 = 0.83) for mean activation across sites and test days. For the amygdala, habituation ( Eρ2 = 0.71) was more stable than mean activation. In a second investigation, data from 111 healthy individuals across sites were aggregated in a voxelwise, quantitative meta-analysis. When compared with a mixed effects model controlling for site, both approaches identified robust activation in regions consistent with expected results based on prior single-site research. Overall, regions central to emotion processing showed strong reliability in the traveling participants study and robust activation in the aggregation study. These results support the reliability of blood oxygen level-dependent signal in emotion processing areas across different sites and scanners and may inform future efforts to increase efficiency and enhance knowledge of rare conditions in the population through multisite neuroimaging paradigms.


Assuntos
Tonsila do Cerebelo/fisiologia , Córtex Cerebral/fisiologia , Emoções/fisiologia , Imageamento por Ressonância Magnética/normas , Estudos Multicêntricos como Assunto/normas , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Adulto Jovem
14.
Neuroimage ; 97: 41-52, 2014 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-24736173

RESUMO

Multi-site neuroimaging studies offer an efficient means to study brain functioning in large samples of individuals with rare conditions; however, they present new challenges given that aggregating data across sites introduces additional variability into measures of interest. Assessing the reliability of brain activation across study sites and comparing statistical methods for pooling functional data are critical to ensuring the validity of aggregating data across sites. The current study used two samples of healthy individuals to assess the feasibility and reliability of aggregating multi-site functional magnetic resonance imaging (fMRI) data from a Sternberg-style verbal working memory task. Participants were recruited as part of the North American Prodrome Longitudinal Study (NAPLS), which comprises eight fMRI scanning sites across the United States and Canada. In the first study sample (n=8), one participant from each home site traveled to each of the sites and was scanned while completing the task on two consecutive days. Reliability was examined using generalizability theory. Results indicated that blood oxygen level-dependent (BOLD) signal was reproducible across sites and was highly reliable, or generalizable, across scanning sites and testing days for core working memory ROIs (generalizability ICCs=0.81 for left dorsolateral prefrontal cortex, 0.95 for left superior parietal cortex). In the second study sample (n=154), two statistical methods for aggregating fMRI data across sites for all healthy individuals recruited as control participants in the NAPLS study were compared. Control participants were scanned on one occasion at the site from which they were recruited. Results from the image-based meta-analysis (IBMA) method and mixed effects model with site covariance method both showed robust activation in expected regions (i.e. dorsolateral prefrontal cortex, anterior cingulate cortex, supplementary motor cortex, superior parietal cortex, inferior temporal cortex, cerebellum, thalamus, basal ganglia). Quantification of the similarity of group maps from these methods confirmed a very high (96%) degree of spatial overlap in results. Thus, brain activation during working memory function was reliable across the NAPLS sites and both the IBMA and mixed effects model with site covariance methods appear to be valid approaches for aggregating data across sites. These findings indicate that multi-site functional neuroimaging can offer a reliable means to increase power and generalizability of results when investigating brain function in rare populations and support the multi-site investigation of working memory function in the NAPLS study, in particular.


Assuntos
Imageamento por Ressonância Magnética/métodos , Memória de Curto Prazo/fisiologia , Estudos Multicêntricos como Assunto/métodos , Adolescente , Adulto , Encéfalo/patologia , Canadá , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Estudos Longitudinais , Masculino , Oxigênio/sangue , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Reprodutibilidade dos Testes , Estados Unidos , Adulto Jovem
15.
Hum Brain Mapp ; 35(5): 2424-34, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-23982962

RESUMO

Multisite longitudinal neuroimaging designs are used to identify differential brain structural change associated with onset or progression of disease. The reliability of neuroanatomical measurements over time and across sites is a crucial aspect of power in such studies. Prior work has found that while within-site reliabilities of neuroanatomical measurements are excellent, between-site reliability is generally more modest. Factors that may increase between-site reliability include standardization of scanner platform and sequence parameters and correction for between-scanner variations in gradient nonlinearities. Factors that may improve both between- and within-site reliability include use of registration algorithms that account for individual differences in cortical patterning and shape. In this study 8 healthy volunteers were scanned twice on successive days at 8 sites participating in the North American Prodrome Longitudinal Study (NAPLS). All sites employed 3 Tesla scanners and standardized acquisition parameters. Site accounted for 2 to 30% of the total variance in neuroanatomical measurements. However, site-related variations were trivial (<1%) among sites using the same scanner model and 12-channel coil or when correcting for between-scanner differences in gradient nonlinearity and scaling. Adjusting for individual differences in sulcal-gyral geometries yielded measurements with greater reliabilities than those obtained using an automated approach. Neuroimaging can be performed across multiple sites at the same level of reliability as at a single site, achieving within- and between-site reliabilities of 0.95 or greater for gray matter density in the majority of voxels in the prefrontal and temporal cortical surfaces as well as for the volumes of most subcortical structures.


Assuntos
Mapeamento Encefálico , Encéfalo/patologia , Transtornos Psicóticos/patologia , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Reprodutibilidade dos Testes , Estatística como Assunto
16.
Bipolar Disord ; 16(5): 505-22, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24807784

RESUMO

OBJECTIVE: The aim of the present study was to investigate the psychometric properties of the Bipolar Prodrome Symptom Interview and Scale-Prospective (BPSS-P), the first specific interview for emerging bipolar disorder (BD) symptoms. METHODS: A total of 205 youth aged 12-23 years and/or their caregivers underwent BPSS-P interviews: 129 patients with mood spectrum disorders [depression spectrum disorder (n = 77), mood disorder not otherwise specified (NOS) (n = 27), BD-NOS (n = 14), bipolar I disorder (BD-I)/bipolar II disorder (BD-II)/cyclothymia (n = 11), 34 with non-mood spectrum disorders, and 42 healthy controls (HCs)]. We used Cronbach's α to assess internal consistency; intra-class correlation (ICC) for inter-rater reliability; Spearman's rho for convergent validity with the Young Mania Rating Scale (YMRS), General Behavior Inventory-10-item Mania Form (GBI-M-10), and Cyclothymic-Hypersensitive Temperament (CHT) scale; and analysis of variance for discriminatory power between diagnostic groups. RESULTS: Internal consistency was good to very good for the BPSS-P Mania (Cronbach's α = 0.87), Depression (Cronbach's α = 0.89), and General Symptom indices (Cronbach's α = 0.74). Inter-rater reliability was high for the BPSS-P Total score (ICC = 0.939), and BPSS-P Mania (ICC = 0.934), Depression (ICC = 0.985), and General (ICC = 0.981) indices. Convergent validity was large (ρ ≥ 0.50) between the BPSS-P Mania Index and YMRS, GBI-M-10, and CHT; BPSS-P Depression Index and Montgomery-Åsberg Depression Rating Scale (MADRS) and CHT; and BPSS-P General Index and GBI-M-10 and CHT. Expectedly, convergent validity was small (ρ = 0.10 to < 0.30) between the BPSS-P Mania Index and MADRS, and BPSS-P Depression Index and YMRS. Furthermore, the BPSS-P and its subscales discriminated each patient group from HCs and from non-mood spectrum patients (except for the BPSS-P General Index). Moreover, the BPSS-P Total score discriminated BD-I/BD-II/cyclothymia from depression spectrum patients, and the BPSS-Mania Index differentiated all three bipolar spectrum groups from depression spectrum patients. CONCLUSIONS: The BPSS-P has good to excellent psychometric properties. Its use across multiple settings and predictive validity requires further investigation.


Assuntos
Transtorno Bipolar , Entrevista Psicológica , Transtornos Mentais/complicações , Sintomas Prodrômicos , Adolescente , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/etiologia , Transtorno Bipolar/psicologia , Criança , Demografia , Feminino , Humanos , Masculino , Transtornos Mentais/tratamento farmacológico , Transtornos Mentais/epidemiologia , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Psicometria , Reprodutibilidade dos Testes , Adulto Jovem
17.
Bipolar Disord ; 16(5): 478-92, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24597782

RESUMO

OBJECTIVES: The aim of the present study was to systematically evaluate the prodrome to mania in youth. METHODS: New-onset/worsening symptoms/signs of ≥ moderate severity preceding first mania were systematically assessed in 52 youth (16.2 ± 2.8 years) with a research diagnosis of bipolar I disorder (BD-I). Youth and/or caregivers underwent semi-structured interviews, using the Bipolar Prodrome Symptom Scale-Retrospective. RESULTS: The mania prodrome was reported to start gradually in most youth (88.5%), with either slow (59.6%) or rapid (28.8%) deterioration, while a rapid-onset-and-deterioration prodrome was rare (11.5%). The manic prodrome, conservatively defined as requiring ≥ 3 symptoms, lasted 10.3 ± 14.4 months [95% confidence interval (CI): 6.3-14.4], being present for ≥ 4 months in 65.4% of subjects. Among prodromal symptoms reported in ≥ 50% of youth, three were subthreshold manic in nature (irritability: 61.5%, racing thoughts: 59.6%, increased energy/activity: 50.0%), two were nonspecific (decreased school/work functioning: 65.4%, mood swings/lability: 57.7%), and one each was depressive (depressed mood: 53.8%) or subthreshold manic/depressive (inattention: 51.9%). A decreasing number of youth had ≥ 1 (84.6%), ≥ 2 (48.1%), or ≥ 3 (26.9%) 'specific' subthreshold mania symptoms (i.e., elation, grandiosity, decreased need for sleep, racing thoughts, or hypersexuality), lasting 9.5 ± 14.9 months (95% CI: 5.0-14.0), 3.5 ± 3.5 months (95% CI: 2.0-4.9), and 3.0 ± 3.2 months (95% CI: 1.0-5.0) for ≥ 1, ≥ 2, or ≥ 3 specific symptoms, respectively. CONCLUSIONS: In youth with BD-I, a relatively long, predominantly slow-onset mania prodrome appears to be common, including subthreshold manic and depressive psychopathology symptoms. This suggests that early clinical identification and intervention may be feasible in bipolar disorder. Identifying biological markers associated with clinical symptoms of impending mania may help to increase chances for early detection and prevention before full mania.


Assuntos
Transtorno Bipolar/classificação , Transtorno Bipolar/complicações , Transtorno Bipolar/diagnóstico , Progressão da Doença , Sintomas Prodrômicos , Adolescente , Transtorno Bipolar/fisiopatologia , Criança , Diagnóstico Diferencial , Diagnóstico Precoce , Feminino , Humanos , Masculino , Escalas de Graduação Psiquiátrica , Adulto Jovem
18.
MedEdPORTAL ; 20: 11382, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38380273

RESUMO

Introduction: Most health care providers will be involved in a medical error during their careers. It is critical that future physicians receive formal training on error disclosure. Methods: We designed a formative skills-based objective standardized clinical exam (OSCE) for fourth-year medical students to assess competence in disclosing an error during a required entrustable professional activity. Faculty observed the encounter and completed a checklist evaluating students' performance in communication skills and content knowledge. Students received immediate formative feedback. They then participated in a facilitated case-based experience, discussed the critical elements of disclosure, utilized role-play to reinforce skills, and reflected on self-care practices. Finally, students completed a survey evaluating their perception of the OSCE's impact on their disclosure knowledge, skills, and attitudes. Results: Ninety-two students participated in the OSCE. Of those, 67 (73%) completed a retrospective pre/post survey assessing their disclosure knowledge, skills, and attitudes. Forty-one (62%) did not identify the error. Students who identified the error (26, 39%) were more likely to use the two-patient identifier than students who did not identify the error, χ2(1) = 13.3, p < .001. Self-reported comfort and confidence in disclosure improved, as did self-care practices (ps ≤ .005). Discussion: Students agreed that health care providers should disclose an error and know how to do so. Student self-reported comfort in disclosure and knowledge of how to disclose and how to report an error all improved following the OSCE and structured debrief. The OSCE and case-based experience can be adapted for implementation in curricula about error disclosure.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Humanos , Avaliação Educacional , Estudos Retrospectivos , Competência Clínica
19.
Cogn Neuropsychiatry ; 18(1-2): 129-45, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23137046

RESUMO

INTRODUCTION: The importance of early intervention strategies has recently been recognised in the field of psychiatry. Although early intervention strategies in schizophrenia have been extensively studied, recent efforts to identify individuals who are at increased risk for other disorders, such as bipolar disorder, have gained significant interest. There is some available data to suggest that cognitive deficits may precede the onset of mania; therefore, it would be beneficial to identify cognitive predictors of bipolar disorder in an effort to facilitate early intervention. METHODS: We conducted a literature review of conscript, cohort, high-risk, family-based and first-episode mania studies that assessed neurocognition in order to ascertain potential cognitive predictors of bipolar disorder. RESULTS: There is little evidence that individuals at risk for bipolar disorder exhibit deficits in global measures of neurocognition, such as IQ. However, deficits in specific neurocognitive domains, including verbal memory and executive function, appear to represent potential predictors of bipolar disorder. CONCLUSIONS: These conclusions are preliminary; however, they provide a starting point for future work. Additional efforts towards understanding both the clinical and cognitive prodrome will be important in elucidating the pathophysiology of bipolar disorder.


Assuntos
Transtorno Bipolar/psicologia , Cognição/fisiologia , Testes Neuropsicológicos , Estudos de Coortes , Família , Humanos , Testes de Inteligência , Estudos Longitudinais , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Medição de Risco , Psicologia do Esquizofrênico
20.
Med Sci Educ ; 33(1): 107-117, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37008443

RESUMO

Objective: This study aimed to describe fourth-year medical students' experiences, recorded and tracked in structured reflective teaching logs (RTLs), as participants in a year-long longitudinal medical student-as-teacher elective. Methods: Thirteen (13) participants from two medical student-as-teacher elective cohorts completed 20 contact hours of self-selected teaching. Participants chose three different learning environments spanning the first 3 years of the medical school curriculum. Reflections were entered into an online spreadsheet with guided prompts (RTL). Open-ended text in the RTLs was analyzed using an inductive qualitative research approach. Open coding was applied across all meaningful segments of text, identifying themes that were validated internally with three co-authors and one methodology expert without formal program involvement. Results: Narratives revealed detailed descriptions and reflections of participant experiences. Analysis revealed eight themes: (1) Joy of Teaching; (2) Teaching Effectiveness; (3) Feedback; (4) Effective Patient-Physician Communication; (5) Assessment; (6) Differential Diagnosis Development; (7) Standardized Case Development; and (8) Training for Teaching in Residency. Conclusion: Fourth-year medical student participants in a longitudinal medical student-as-teacher elective effectively used RTLs from participatory teaching to help facilitate their own development as clinician-educators. Themes identified in RTLs reflect students' awareness of teaching skill requirements and readiness for the next workplace, residency. Informed by situativity theory, formal teaching opportunities in authentic learning environments bestow students with critical formative teaching experience and awareness of the roles as clinician-educators during their undergraduate years.

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