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1.
J Am Board Fam Med ; 35(3): 517-526, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35641043

RESUMO

INTRODUCTION: Health systems undertook a rapid transition to increase the use of telemedicine in the wake of the COVID-19 pandemic. A continued need for telemedicine services in the coming years is likely. This article examines telemedicine from multiple stakeholders' perspectives considering reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) outcomes. METHODS: Semistructured interviews were conducted with primary care practice team members and patients. Rapid qualitative analysis was used to identify themes in experiences and perceptions related to telemedicine implementation. The RE-AIM implementation framework was applied to thematic findings to understand influences on implementation outcomes. RESULTS: Twenty-four practice members and 17 patients across 5 clinics participated. All stakeholder groups reported that technological capabilities influenced patients' access to telemedicine and that certain patients and reasons for visits were not appropriate for telemedicine. All groups felt that telemedicine was a good option for some patients some of the time but not all patients all of the time. DISCUSSION: Telemedicine works well if it is used for the appropriate visits and patient types and with needed technological elements. Older age may limit the feasibility of telehealth for some patients. Added administrative work and associated costs support systematic screening to determine visit appropriateness for telemedicine.


Assuntos
COVID-19 , Telemedicina , COVID-19/epidemiologia , Humanos , Pandemias
2.
J Am Board Fam Med ; 34(Suppl): S196-S202, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33622838

RESUMO

INTRODUCTION: Our university hospital-based primary care practices transitioned a budding interest in telehealth to a largely telehealth-based approach in the face of the COVID-19 pandemic. INITIAL WORK: Implementation of telehealth began in 2017. Health system barriers, provider and patient reluctance, and inadequate reimbursement prevented widespread adoption at the time. COVID-19 served as the catalyst to accelerate telehealth efforts. IMPLEMENTATION: COVID-19 resulted in the need for patient care with "social distancing." In addition, due to the pandemic, the Centers for Medicare and Medicaid Services and other insurers began expanded reimbursement for telehealth. More than 2000 providers received virtual health training in less than 2 weeks. In March 2020, we provided 2376 virtual visits, and in April 5293, which was more than 75 times the number provided in February; 73% of all visits in April were virtual (up from 0.5% in October 2019). As COVID-19 cases receded in May, June, and July, patient demand for virtual visits decreased, but 28% of visits in July were still virtual. LESSONS LEARNED: Several key lessons are important for future efforts regarding clinical implementation: (1) prepare for innovation, (2) cultivate an innovation mindset, (3) standardize (but not too much), (4) technological innovation is necessary but not sufficient, and (5) communicate widely and often.


Assuntos
COVID-19/epidemiologia , Atenção Primária à Saúde/organização & administração , Telemedicina/estatística & dados numéricos , Colorado/epidemiologia , Humanos , Estudos de Casos Organizacionais , Pandemias , Distanciamento Físico , Atenção Primária à Saúde/economia , SARS-CoV-2 , Telemedicina/economia , Telemedicina/tendências , Estados Unidos
3.
J Am Board Fam Med ; 33(5): 675-686, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32989062

RESUMO

PURPOSE: To improve cardiovascular care through supporting primary care practices' adoption of evidence-based guidelines. STUDY DESIGN: A cluster randomized trial compared two approaches: (1) standard practice support (practice facilitation, practice assessment with feedback, health information technology assistance, and collaborative learning sessions) and (2) standard support plus patient engagement support. METHODS: Primary outcomes were cardiovascular clinical quality measures (CQMs) collected at baseline, 9 months, and 15 months. Implementation of the first 6 "Building Blocks of High-Performing Primary Care" was assessed by practice facilitators at baseline and 3, 6, and 9 months. CQMs from practices not involved in the study served as an external comparison. RESULTS: A total of 211 practices completed baseline surveys. There were no differences by study arm (odds ratio [95% confidence interval]) for aspirin use (1.03 [0.99, 1.06]), blood pressure (0.98 [0.95, 1.01]), cholesterol (0.96 [0.92, 1.00]), and smoking (1.01 [0.96, 1.07]); however, there were significant improvements over time in aspirin use (1.04 [1.01, 1.07]), cholesterol (1.05 [1.03, 1.08]), and smoking (1.03 [1.01, 1.06]), but not blood pressure (1.01 [0.998, 1.03]). Improvement in enrolled practices was greater than external comparison practices across all 4 measures (all P < .05). Implementation improved in both arms for Team-Based Care, Patient-Team Partnership, and Population Management, and improvement was greater in enhanced intervention practices (all P < .05). Leadership and Data-Driven Improvement (P < .05) improved significantly, with no difference by arm. A greater improvement in Building Block implementation was associated with a greater improvement in blood pressure measures (P < .05). CONCLUSIONS: Practice transformation support can assist practices with improving quality of care. Patient engagement in practice transformation can further enhance practices' implementation of aspects of new models of care.


Assuntos
Doenças Cardiovasculares , Participação do Paciente , Atenção Primária à Saúde , Melhoria de Qualidade , Idoso , Doenças Cardiovasculares/terapia , Prática Clínica Baseada em Evidências , Feminino , Fidelidade a Diretrizes , Humanos , Masculino , Guias de Prática Clínica como Assunto , Atenção Primária à Saúde/organização & administração , Melhoria de Qualidade/organização & administração
4.
J Gen Intern Med ; 35(11): 3197-3204, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32808208

RESUMO

BACKGROUND: Identifying characteristics of primary care practices that perform well on cardiovascular clinical quality measures (CQMs) may point to important practice improvement strategies. OBJECTIVE: To identify practice characteristics associated with high performance on four cardiovascular disease CQMs. DESIGN: Longitudinal cohort study among 211 primary care practices in Colorado and New Mexico. Quarterly CQM reports were obtained from 178 (84.4%) practices. There was 100% response rate for baseline practice characteristics and implementation tracking surveys. Follow-up implementation tracking surveys were completed for 80.6% of practices. PARTICIPANTS: Adult patients, staff, and clinicians in family medicine, general internal medicine, and mixed-specialty practices. INTERVENTION: Practices received 9 months of practice facilitation and health information technology support, plus biannual collaborative learning sessions. MAIN MEASURES: This study identified practice characteristics associated with overall highest performance using area under the curve (AUC) analysis on aspirin therapy, blood pressure management, and smoking cessation CQMs. RESULTS: Among 178 practices, 39 were exemplars. Exemplars were more likely to be a Federally Qualified Health Center (69.2% vs 35.3%, p = 0.0006), have an underserved designation (69.2% vs 45.3%, p = 0.0083), and have higher percentage of patients with Medicaid (p < 0.0001). Exemplars reported greater use of cardiovascular disease registries (61.5% vs 29.5%,), standing orders (38.5 vs 22.3%) or electronic health record prompts (84.6% vs 49.6%) (all p < 0.05), were more likely to have medical home recognition (74.4% vs 43.2%, p = 0.0006), and reported greater implementation of building blocks of high-performing primary care: regular quality improvement team meetings (3.0 vs 2.2), patient experience survey (3.1 vs 2.2), and resources for patients to manage their health (3.0 vs 2.3). High improvers (n = 45) showed greater improvement implementing team-based care (32.8 vs 11.7, p = 0.0004) and population management (37.4 vs 20.5, p = 0.0057). CONCLUSIONS: Multiple strategies-registries, prompts and protocols, patient self-management support, and patient-team partnership activities-were associated with delivering high-quality cardiovascular care over time, measured by CQMs. TRIAL REGISTRATION: ClinicalTrials.gov registration: NCT02515578.


Assuntos
Doenças Cardiovasculares , Indicadores de Qualidade em Assistência à Saúde , Adulto , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/terapia , Colorado , Humanos , Estudos Longitudinais , Atenção Primária à Saúde , Melhoria de Qualidade
5.
JAMA Netw Open ; 2(8): e198569, 2019 08 02.
Artigo em Inglês | MEDLINE | ID: mdl-31390033

RESUMO

Importance: The capability and capacity of primary care practices to report electronic clinical quality measures (eCQMs) are questionable. Objective: To determine how quickly primary care practices can report eCQMs and the practice characteristics associated with faster reporting. Design, Setting, and Participants: This quality improvement study examined an initiative (EvidenceNOW Southwest) to enhance primary care practices' ability to adopt evidence-based cardiovascular care approaches: aspirin prescribing, blood pressure control, cholesterol management, and smoking cessation (ABCS). A total of 211 primary care practices in Colorado and New Mexico participating in EvidenceNOW Southwest between February 2015 and December 2017 were included. Interventions: Practices were instructed on eCQM specifications that could be produced by an electronic health record, a registry, or a third-party platform. Practices received 9 months of support from a practice facilitator, a clinical health information technology advisor, and the research team. Practices were instructed to report their baseline ABCS eCQMs as soon as possible. Main Outcomes and Measures: The main outcome was time to report the ABCS eCQMs. Cox proportional hazards models were used to examine practice characteristics associated with time to reporting. Results: Practices were predominantly clinician owned (48%) and in urban or suburban areas (71%). Practices required a median (interquartile range) of 8.2 (4.6-11.9) months to report any ABCS eCQM. Time to report differed by eCQM: practices reported blood pressure management the fastest (median [interquartile range], 7.8 [3.5-10.4] months) and cholesterol management the slowest (median [interquartile range], 10.5 [6.6 to >12] months) (log-rank P < .001). In multivariable models, the blood pressure eCQM was reported more quickly by practices that participated in accountable care organizations (hazard ratio [HR], 1.88; 95% CI, 1.40-2.53; P < .001) or participated in a quality demonstration program (HR, 1.58; 95% CI, 1.14-2.18; P = .006). The cholesterol eCQM was reported more quickly by practices that used clinical guidelines for cardiovascular disease management (HR, 1.35; 95% CI, 1.18-1.53; P < .001). Compared with Federally Qualified Health Centers, hospital-owned practices had greater ability to report blood pressure eCQMs (HR, 2.66; 95% CI, 95% CI, 1.73-4.09; P < .001), and clinician-owned practices had less ability to report cholesterol eCQMs (HR, 0.52; 95% CI, 0.35-0.76; P < .001). Conclusions and Relevance: In this study, time to report eCQMs varied by measure and practice type, with very few practices reporting quickly. Practices took longer to report a new cholesterol measure than other measures. Programs that require eCQM reporting should consider the time and effort practices must exert to produce reports. Practices may benefit from additional support to succeed in new programs that require eCQM reporting.


Assuntos
Doenças Cardiovasculares/terapia , Atenção à Saúde/organização & administração , Registros Eletrônicos de Saúde , Atenção Primária à Saúde/organização & administração , Melhoria de Qualidade/organização & administração , Indicadores de Qualidade em Assistência à Saúde/organização & administração , Adulto , Idoso , Idoso de 80 Anos ou mais , Colorado , Atenção à Saúde/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , New Mexico , Atenção Primária à Saúde/estatística & dados numéricos , Modelos de Riscos Proporcionais , Melhoria de Qualidade/estatística & dados numéricos , Indicadores de Qualidade em Assistência à Saúde/estatística & dados numéricos
6.
J Am Board Fam Med ; 32(4): 490-504, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31300569

RESUMO

INTRODUCTION: Care teams partnering with patients are integral to quality primary care. Effective patient-team partnership recognizes patients' contributions in decision-making and respecting patients' goals and social context. We report practice characteristics associated with greater patient-team partnership scores. METHODS: EvidenceNOW Southwest was a multistate initiative to improve cardiovascular care in primary care practices through guideline-concordant aspirin use, blood pressure control, cholesterol management, and smoking cessation. EvidenceNOW Southwest provided 9 months of practice facilitation and information technology support through regular meetings and training to 211 Colorado and New Mexico primary care practices from 2015 to 2017. We analyzed surveys from 97% of participating practices regarding patient-team partnership activities of self-management support, social need assessment, resource linkages, and patient input. We used linear and mixed effects regression modeling to examine relationships between patient-team partnership and practice characteristics. RESULTS: Practice characteristics significantly associated with greater patient-team partnership were using patient registries, medically underserved area designation, multispecialty mix, and using clinical cardiovascular disease management guidelines. Our findings suggest that patient-team partnership implementation in small primary care practices is moderate, with mean practice- and member-level scores of 52 of 100 (range, 0-100) and 71 of 100 (range, 10-100), respectively. CONCLUSION: Practices can improve efforts to partner with patients to assess social needs, gather meaningful input on practice improvement and patient experience, and offer resource connections. Our findings supplement recent evidence that patient registries and evidence-based guidelines may effectively prevent and manage cardiovascular disease. These strategies may also promote primary care patient-team partnership.


Assuntos
Doenças Cardiovasculares/terapia , Tomada de Decisão Compartilhada , Equipe de Assistência ao Paciente/organização & administração , Participação do Paciente , Atenção Primária à Saúde/organização & administração , Colorado , Estudos Transversais , Fidelidade a Diretrizes/organização & administração , Fidelidade a Diretrizes/estatística & dados numéricos , Implementação de Plano de Saúde/organização & administração , Implementação de Plano de Saúde/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde/estatística & dados numéricos , Humanos , Área Carente de Assistência Médica , New Mexico , Guias de Prática Clínica como Assunto , Atenção Primária à Saúde/normas , Atenção Primária à Saúde/estatística & dados numéricos , Melhoria de Qualidade , Sistema de Registros/estatística & dados numéricos , Autogestão , Inquéritos e Questionários/estatística & dados numéricos
7.
Health Aff (Millwood) ; 37(4): 635-643, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29608365

RESUMO

Federal value-based payment programs require primary care practices to conduct quality improvement activities, informed by the electronic reports on clinical quality measures that their electronic health records (EHRs) generate. To determine whether EHRs produce reports adequate to the task, we examined survey responses from 1,492 practices across twelve states, supplemented with qualitative data. Meaningful-use participation, which requires the use of a federally certified EHR, was associated with the ability to generate reports-but the reports did not necessarily support quality improvement initiatives. Practices reported numerous challenges in generating adequate reports, such as difficulty manipulating and aligning measurement time frames with quality improvement needs, lack of functionality for generating reports on electronic clinical quality measures at different levels, discordance between clinical guidelines and measures available in reports, questionable data quality, and vendors that were unreceptive to changing EHR configuration beyond federal requirements. The current state of EHR measurement functionality may be insufficient to support federal initiatives that tie payment to clinical quality measures.


Assuntos
Registros Eletrônicos de Saúde/normas , Uso Significativo , Atenção Primária à Saúde/normas , Melhoria de Qualidade/normas , Projetos de Pesquisa , Humanos
8.
J Ambul Care Manage ; 40(3): 220-227, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27893519

RESUMO

Most primary care residency training practices have close financial and administrative relationships with teaching hospitals and health systems. Many residency practices have begun integrating the core principles of the patient-centered medical home (PCMH) into clinical workflows and educational experiences. Little is known about how the relationships with hospitals and health systems affect these transformation efforts. Data from the Colorado Residency PCMH Project were analyzed. Results show that teaching hospitals and health systems have significant opportunities to influence residency practices' transformation, particularly in the areas of supporting team-based care, value-based payment reforms, and health information technology.


Assuntos
Internato e Residência/métodos , Sistemas Multi-Institucionais , Assistência Centrada no Paciente , Colorado , Documentação , Humanos , Atenção Primária à Saúde , Avaliação de Programas e Projetos de Saúde/métodos , Inquéritos e Questionários
9.
Prim Care ; 41(2): 163-83, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24830604

RESUMO

Prevention plays an important role in achieving the triple aim of decreasing per capita health care costs, improving the health of populations, and bettering the patient experience. Primary care is uniquely positioned to provide preventive services. External forces are aligning to support the transition of primary care from traditional models focused on disease-specific, acute episodes of care to new ways of organizing that are more patient centered, team based, and quality driven. By aligning leadership, building change capacity, and selectively choosing relevant processes to change, those practicing primary care can successfully organize their practice environment to deliver preventive services.


Assuntos
Serviços Preventivos de Saúde/organização & administração , Atenção Primária à Saúde/organização & administração , Qualidade da Assistência à Saúde/organização & administração , Humanos , Sistemas de Informação/organização & administração , Liderança , Programas de Rastreamento/organização & administração , Inovação Organizacional , Patient Protection and Affordable Care Act/legislação & jurisprudência , Assistência Centrada no Paciente/organização & administração , Melhoria de Qualidade/organização & administração , Vacinação/métodos
10.
J Am Board Fam Med ; 23(6): 720-7, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21057067

RESUMO

INTRODUCTION: Erythema migrans (EM) is an annular, erythematous, expanding rash that is characteristic of early Lyme disease. In the southern United States, however, many cases of EM seem to have an etiology different from that of Lyme disease. This little-understood condition is called Southern tick-associated rash illness. METHODS: With the goal of obtaining biological specimens and clinical histories from 12 to 20 STARI patients for use in etiologic research, microbiologists from the Centers for Disease Control and Prevention contacted the North Carolina Network Consortium, a statewide consortium of practice-based research networks. This article describes the methods by which the North Carolina Network Consortium successfully identified and enrolled Southern tick-associated rash illness patients into a primary care-based research protocol. RESULTS: A total of 23 patients were enrolled, with 100% attainment of the desired specimens. After an initial lack of success, the revised protocol identified and trained physicians practicing in endemic areas for the illness, used a coordinator with 24-hour availability, recruited participants using newspaper notices and medical providers, and provided regular reminders and progress updates. CONCLUSIONS: A practice-based research network can help basic scientists identify patients and collect specimens for clinically relevant research.


Assuntos
Pesquisa Biomédica/organização & administração , Centers for Disease Control and Prevention, U.S. , Comportamento Cooperativo , Eritema Migrans Crônico/etiologia , Atenção Primária à Saúde , Manejo de Espécimes/métodos , Animais , Redes Comunitárias/organização & administração , Humanos , North Carolina , Seleção de Pacientes , Estados Unidos
11.
Soc Cogn Affect Neurosci ; 3(2): 144-60, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19015105

RESUMO

Humans possess a remarkable capacity to understand the suffering of others. Cognitive neuroscience theories of empathy suggest that this capacity is supported by 'shared representations' of self and other. Consistent with this notion, a number of studies have found that perceiving others in pain and experiencing pain oneself recruit overlapping neural systems. Perception of pain in each of these conditions, however, may also cause unique patterns of activation, that may reveal more about the processing steps involved in each type of pain. To address this issue, we examined neural activity while participants experienced heat pain and watched videos of other individuals experiencing injuries. Results demonstrated (i) that both tasks activated anterior cingulate cortex and anterior insula, consistent with prior work; (ii) whereas self-pain activated anterior and mid insula regions implicated in interoception and nociception, other pain activated frontal, premotor, parietal and amygdala regions implicated in emotional learning and processing social cues; and (iii) that levels of trait anxiety correlated with activity in rostral lateral prefrontal cortex during perception of other pain but not during self-pain. Taken together, these data support the hypothesis that perception of pain in self and other, while sharing some neural commonalities, differ in their recruitment of systems specifically associated with decoding and learning about internal or external cues.


Assuntos
Córtex Cerebral/fisiologia , Empatia , Vias Neurais/fisiologia , Dor/psicologia , Percepção Social , Adulto , Ansiedade/psicologia , Medo/psicologia , Feminino , Humanos , Controle Interno-Externo , Masculino , Valores de Referência , Autoimagem , Autoavaliação (Psicologia) , Adulto Jovem
12.
Pain ; 120(1-2): 69-77, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16364548

RESUMO

Although individual differences in fear and anxiety modulate the pain response and may even cause more suffering than the initiating physical stimulus, little is known about the neural systems mediating this relationship. The present study provided the first examination of the neural correlates of individual differences in the tendency to (1) feel anxious about the potentially negative implications of physical sensations, as measured by the anxiety sensitivity index (ASI), and (2) fear various types of physical pain, as indexed by the fear of pain questionnaire (FPQ). In separate sessions, participants completed these questionnaires and experienced alternating blocks of noxious thermal stimulation (45-50 degrees C) and neutral thermal stimulation (38 degrees C) during the collection of whole-brain fMRI data. Regression analyses demonstrated that during the experience of pain, ASI scores predicted activation of a medial prefrontal region associated with self-focused attention, whereas FPQ scores predicted activation of a ventral lateral frontal region associated with response regulation and anterior and posterior cingulate regions associated with monitoring and evaluation of affective responses. These functional relationships cannot be wholly explained by generalized anxiety (indexed by STAI-T scores), which did not significantly correlate with activation of any regions. The present findings may help clarify both the impact of individual differences in emotion on the neural correlates of pain, and the roles in anxiety, fear, and pain processing played by medial and orbitofrontal systems.


Assuntos
Transtornos de Ansiedade/fisiopatologia , Encéfalo/fisiopatologia , Potenciais Somatossensoriais Evocados , Medo , Dor/fisiopatologia , Adulto , Transtornos de Ansiedade/complicações , Transtornos de Ansiedade/psicologia , Mapeamento Encefálico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Dor/complicações , Dor/psicologia , Estatística como Assunto
13.
Int J Med Robot ; 2(1): 75-83, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17520616

RESUMO

The ability to effectively identify eloquent cortex in close proximity to brain tumours is a critical component of surgical planning prior to resection. The use of electrocortical stimulation testing (ECS) during awake neurosurgical procedures remains the gold standard for mapping functional areas, yet the preoperative use of non-invasive brain imaging techniques such as fMRI are gaining popularity as supplemental surgical planning tools. In addition, the intraoperative three-dimensional display of fMRI findings co-registered to structural imaging data maximizes the utility of the preoperative mapping for the surgeon. Advances in these techniques have the potential to limit the size and duration of craniotomies as well as the strain placed on the patient, but more research accurately demonstrating their efficacy is required. In this paper, we demonstrate the integration of preoperative fMRI within a neuronavigation system to aid in surgical planning, as well as the integration of these fMRI data with intraoperative ECS mapping results into a three-dimensional dataset for the purpose of cross-validation.


Assuntos
Neoplasias Encefálicas/cirurgia , Córtex Cerebral/cirurgia , Imageamento por Ressonância Magnética , Neuronavegação , Cirurgia Assistida por Computador , Adulto , Mapeamento Encefálico , Neoplasias Encefálicas/fisiopatologia , Córtex Cerebral/fisiopatologia , Estimulação Elétrica , Feminino , Humanos , Período Intraoperatório , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios , Resultado do Tratamento
14.
Brain ; 128(Pt 4): 773-87, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15705615

RESUMO

Alzheimer's disease is the most common cause of dementia in older adults. Although the cognitive deficits and pathologic hallmarks of Alzheimer's disease have been well characterized, few functional imaging studies have examined the functional competency of specific brain regions and their relationship to specific behavioural memory deficits in Alzheimer's disease. We used functional MRI (fMRI) to examine seven early stage Alzheimer's disease patients and seven healthy age-matched neurologically normal control subjects during intentional encoding of scenes. Subjects viewed blocks of novel scenes, repeated scenes or baseline. Data were analysed using whole-brain statistical parametric mapping and region of interest approaches. The Alzheimer's disease group demonstrated impaired explicit recognition memory, but intact implicit memory (repetition priming), for the scenes. Alzheimer's disease patients demonstrated a graded deficit in activation for novel versus repeated scenes along the ventral visual stream, with most impaired activation changes in the mesial temporal lobe (MTL) and fusiform regions, most preserved activations in primary visual cortex and variably affected activations in secondary visual areas. Group-level correlations with behavioural measures of explicit memory were found in MTL, lingual and fusiform areas, whereas correlations with priming were found in lateral occipital, parietal and frontal areas. Together, these fMRI findings indicate a dissociation in Alzheimer's disease between impaired explicit memory encoding in MTL and fusiform regions and intact implicit encoding in earlier-stage occipital cortex.


Assuntos
Doença de Alzheimer/psicologia , Transtornos da Memória/etiologia , Idoso , Doença de Alzheimer/patologia , Doença de Alzheimer/fisiopatologia , Encéfalo/patologia , Encéfalo/fisiopatologia , Mapeamento Encefálico/métodos , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética , Masculino , Memória , Transtornos da Memória/patologia , Pessoa de Meia-Idade , Reconhecimento Visual de Modelos , Estimulação Luminosa/métodos , Fotografação , Reconhecimento Psicológico , Análise de Regressão , Lobo Temporal/patologia , Lobo Temporal/fisiopatologia
15.
J Cogn Neurosci ; 16(10): 1746-72, 2004 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15701226

RESUMO

Understanding one's own and other individual's emotional states is essential for maintaining emotional equilibrium and strong social bonds. Although the neural substrates supporting ref lection upon one's own feelings have been investigated, no studies have directly examined attributions about the internal emotional states of others to determine whether common or distinct neural systems support these abilities. The present study sought to directly compare brain regions involved in judging one's own, as compared to another individual's, emotional state. Thirteen participants viewed mixed valence blocks of photos drawn from the International Affective Picture System while whole-brain fMRI data were collected. Preblock cues instructed participants to evaluate either their emotional response to each photo, the emotional state of the central figure in each photo, or (in a baseline condition) whether the photo was taken indoors or outdoors. Contrasts indicated (1) that both self and other judgments activated the medial prefrontal cortex (MPFC), the superior temporal gyrus, and the posterior cingulate/precuneus, (2) that self judgments selectively activated subregions of the MPFC and the left temporal cortex, whereas (3) other judgments selectively activated the left lateral prefrontal cortex (including Broca's area) and the medial occipital cortex. These results suggest (1) that self and other evaluation of emotion rely on a network of common mechanisms centered on the MPFC, which has been hypothesized to support mental state attributions in general, and (2) that medial and lateral PFC regions selectively recruited by self or other judgments may be involved in attention to, and elaboration of, internally as opposed to externally generated information.


Assuntos
Córtex Cerebral/fisiologia , Estado de Consciência/fisiologia , Emoções/fisiologia , Julgamento/fisiologia , Autoimagem , Adulto , Análise de Variância , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Vias Neurais/fisiologia , Estimulação Luminosa , Autoavaliação (Psicologia) , Percepção Social
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