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  • 文章类型: Case Reports
    一名五十多岁的糖尿病妇女突然出现视力衰竭和复视,涉及右眼两天,伴随着发烧和头痛。放射学检查显示右蝶窦炎以及右眶尖和视神经周围的炎症。功能性内窥镜鼻窦手术,眼眶和视神经减压改善了眼球运动,但不是视力。组织病理学提示肉芽肿性炎性病变,胸部高分辨率计算机断层扫描(HRCT)显示肺部病变提示陈旧性结核感染,然后开始抗结核治疗(ATT)。ATT两个月结束时,眼肌麻痹完全消退,相对传入瞳孔缺损,然而,直接和自愿的光反射,她的视力未能得到改善,显示视神经受损.肺外结核累及孤立的蝶窦是罕见且难以捉摸的。及时进行放射学调查,然后是眼眶减压和ATT,提供最好的结果。
    A diabetic woman in her fifties presented with a sudden onset of failing vision and diplopia involving the right eye for two days, along with fever and headache. Radiological investigations revealed right sphenoid sinusitis along with inflammation around the right orbital apex and optic nerve. Functional endoscopic sinus surgery, with orbital and optic nerve decompression improved the ocular movements, but not the visual acuity. Histopathology was suggestive of a granulomatous inflammatory lesion, and high-resolution computed tommography (HRCT) of the thorax revealed lung lesions suggestive of an old tubercular infection, and antitubercular treatment (ATT) was then initiated.At the end of two months of ATT, there was complete resolution of ophthalmoplegia, relative afferent pupillary defect, direct and consensual light reflex however, failure of improvement in her visual acuity, indicated damage to the optic nerve.Extrapulmonary tuberculosis involving an isolated sphenoid sinus is rare and elusive. Prompt radiological investigations, followed by orbital decompression and ATT, provide the best possible outcomes.
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  • 文章类型: Journal Article
    偏头痛和视网膜血管阻塞之间的关联已被报道,但是没有大规模和全面的研究。因此,我们旨在确定偏头痛患者视网膜血管阻塞的风险.使用2009年至2020年的台湾国民健康保险研究数据库,我们招募了628,760名偏头痛患者和628,760名没有偏头痛的匹配个体。研究结果是诊断为视网膜血管阻塞,包括视网膜动脉阻塞(RAO)和视网膜静脉阻塞(RVO)。估计与偏头痛相关的视网膜血管阻塞的调整风险比(aHR)。随后视网膜血管阻塞的累积发生率,RAO,与对照组相比,偏头痛患者的RVO明显更高(0.31%vs.0.21%;0.09%与0.05%;0.22%vs.0.17%;所有p<0.001)。视网膜血管阻塞的危害,RAO,和RVO在偏头痛组中显著更大(aHR,1.69[95%CI,1.57,1.83],2.13[95%CI,1.84,2.48]和1.53[95%CI,1.40,1.68],分别)。在有先兆(MA)和无先兆(MO)的偏头痛中,视网膜血管阻塞的风险显着升高(aHR,1.77[95%CI,1.58,1.98],和1.92[95%CI,1.64,2.25])。在偏头痛患者中,非甾体抗炎药,普萘洛尔,和氟桂利嗪显著降低视网膜血管阻塞的风险(aHR,0.19[95%CI,0.16,0.22],0.73[95%CI,0.62,0.86],0.84[95%CI,0.76,0.93])。偏头痛,MA和MO与视网膜血管阻塞的高风险独立相关,RAO,和RVO。
    Associations between migraine and retinal vascular occlusion have been reported, but there is no large-scale and comprehensive study. Therefore, we aimed to determine risks of retinal vascular occlusion in patients with migraine. Using the Taiwan National Health Insurance Research Database from 2009 to 2020, we enrolled 628,760 patients with migraine and 628,760 matched individuals without migraine. Study outcomes were diagnoses of retinal vascular occlusion, including retinal artery occlusion (RAO) and retinal vein occlusion (RVO). Adjusted hazard ratio (aHR) of retinal vascular occlusion related to migraine was estimated. The cumulative incidences of subsequent retinal vascular occlusion, RAO, and RVO were significantly higher in migraine patients compared with controls (0.31% vs. 0.21%; 0.09% vs. 0.05%; 0.22% vs. 0.17%; all p < 0.001). The hazards of retinal vascular occlusion, RAO, and RVO were significantly greater in the migraine group (aHR, 1.69 [95% CI, 1.57, 1.83], 2.13 [95% CI, 1.84, 2.48] and 1.53 [95% CI, 1.40, 1.68], respectively). Risks of retinal vascular occlusion were significantly higher in migraine both with aura (MA) and without aura (MO) (aHR, 1.77 [95% CI, 1.58, 1.98], and 1.92 [95% CI, 1.64, 2.25]). Among patients with migraine, nonsteroidal anti-inflammatory drugs, propranolol, and flunarizine significantly reduce their risks of retinal vascular occlusion (aHR, 0.19 [95% CI, 0.16, 0.22], 0.73 [95% CI, 0.62, 0.86], 0.84 [95% CI, 0.76, 0.93]). Migraine, MA and MO are independently associated with higher risks of retinal vascular occlusion, RAO, and RVO.
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  • 文章类型: Journal Article
    背景:在非洲,视力障碍和失明的患病率很高。难以获得眼保健服务,在其他障碍中,已发现对可避免的视力丧失和失明的负担有相当大的影响,特别是在低收入和中等收入国家。
    目的:确定加纳库马西大都市眼科健康服务的可及性和利用障碍。
    方法:在加纳阿散蒂地区的库马西大都会进行了描述性横断面调查,以确定影响眼保健服务利用的障碍。
    方法:首次采用便利抽样方法招募了在五个选定的地区市政医院眼科诊所就诊的参与者。通过问卷调查收集数据,并使用社会科学统计软件包(SPSS)进行分析。
    结果:参与者在获得眼保健服务时面临的障碍包括到诊所的距离,服务成本,远离工作和/或学校的时间,自我治疗和漫长的等待期。
    结论:研究发现,库马西大都会的眼部护理服务,加纳基本上是可以接近的,但未得到充分利用。通过与社区团体的接触来改善公共卫生教育举措也将提高卫生保健设施的使用率。贡献:研究中已确定大都市的卫生服务利用不足,必须由各个部门的卫生管理人员解决。可达性相对较好,但可以进一步提高,特别是对于老年人,以便能够轻松利用医疗保健服务。
    BACKGROUND:  There is a high prevalence of vision impairment and blindness in Africa. The poor access to eye health services, among other barriers, has been found to have a considerable effect on the burden of avoidable vision loss and blindness, particularly in low- and middle-income countries.
    OBJECTIVE:  To determine the accessibility of and barriers to the utilisation of eye health services in the Kumasi Metropolis of Ghana.
    METHODS:  A descriptive cross-sectional survey was conducted in the Kumasi Metropolis of the Ashanti Region in Ghana to identify barriers affecting the utilisation of eye health services.
    METHODS:  Convenience sampling was used to recruit participants visiting the eye clinics at five selected District Municipal Hospitals for the first time. Data were collected by means of questionnaires and analysed using Statistical Package for Social Sciences (SPSS).
    RESULTS:  Barriers faced by participants when accessing eye health services included distance to the clinic, cost of services, time spent away from work and/or school, self-medication and long waiting periods.
    CONCLUSIONS:  The study found that eye care services in the Kumasi Metropolis, Ghana are largely accessible, but underutilised. Improvement of public health education initiatives through engagement with community groups will also enhance uptake at health care facilities.Contribution: Underutilisation of health services in the Metropolis has been identified in the study and must be addressed by health managers in various sectors. Accessibility is relatively good but can further be improved especially for the elderly to be able to utilise health care services with ease.
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  • 文章类型: Journal Article
    估计有1300万澳大利亚人患有一种或多种慢性眼病,随着患病率的增加。今天和未来的眼部护理服务依赖于有效的劳动力,其中护士起着举足轻重的作用。尽管护士参与了眼部护理,没有描述他们订婚的信息,部署,培训,和意见。本文首次回顾了澳大利亚护士对眼科护理的参与。
    我们进行了一项关于澳大利亚护士参与眼部护理的电子调查。定量问题通过描述性分析,卡方和双变量相关系数,假设幂为0.80,显著性为p=0.05。扎根理论,情感和饱和度分析提取了关键主题,来自定性问题的意义和观点。
    有n=238名澳大利亚护士参与者。结果表明,他们对自己的角色感到满意,从事广泛的医疗保健和眼部护理环境和组织,适应他们的雇主。任务转移“到”和“从”护士没有得到普遍支持,但参与者认为这是必要的。令人担忧的是,结果表明,68.6%的参与者将在未来十年内退出眼部护理,研究生和早期职业护士进入该领域的途径不足。
    澳大利亚要满足并维持其人口的眼部护理服务,必须采取措施提高学生的曝光率和进入该领域的能力,毕业生,和早期职业护士。迫切需要为任务转移培训和准备护士的策略,眼科护理部门必须专业化以实现积极的变化。
    UNASSIGNED: An estimated 13 million Australians live with one or more chronic eye conditions, with prevalence increasing. Eye care services today and in the future rely on effective workforces, in which nurses play a pivotal role. Despite nurse involvement in eye care, there is no information describing their engagement, deployment, training, and opinion. This paper offers the first review of nurse engagement in eye care in Australia.
    UNASSIGNED: We conducted an e-survey on Australian nurse engagement in eye care. Quantitative questions were analysed by descriptive, chi-square and bivariate correlation coefficients with assumed power of 0.80, and significance of p=0.05. Grounded theory, sentiment and saturation analysis extracted key themes, meaning and opinion from the qualitative questions.
    UNASSIGNED: There were n=238 Australian nurse participants. Results indicated they were satisfied with their role, engaged in a wide range of healthcare and eye care setting and organisations, and adapted to their employer. Task-shifting \"to\" and \"from\" nurses was not universally supported but recognised by participants as necessary. Of concern, the results suggested that 68.6% of our participants would exit eye care over the next ten years, with insufficient entry pathways into the field for graduate and early-career nurses.
    UNASSIGNED: For Australia to meet and sustain eye care services for its population, steps must be taken to improve exposure and entry to the field for students, graduates, and early-career nurses. Strategies to train and prepare nurses for task-shifting are urgently required and the eye care nursing sector must professionalise to achieve positive change.
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  • 文章类型: Journal Article
    糖尿病视网膜病变(DR)是糖尿病最常见的微血管并发症,导致视力障碍和最终失明。促进自我护理行为对于控制DR进展和预防失明至关重要。
    本研究旨在调查自我护理促进计划(SCPP)对参与自我护理行为的影响,HbA1c水平,视敏度(VA),DR的严重程度,2型糖尿病和DR患者的视觉相关生活质量(VRQoL)。
    本研究采用单盲随机对照试验设计,将SCPP与常规糖尿病护理干预措施(标准护理)进行比较。SCPP基于慢性病自我护理理论,自我效能理论,以及纳入健康教育的糖尿病护理和教育专家协会(ADCES)指南,自我护理维护,监测,和管理技能培训超过12周。98名参与者被随机分配到实验组或对照组(每组49名)。虽然实验组在标准护理的同时接受了SCPP,对照组仅接受标准治疗.数据收集发生在2022年5月至2023年3月之间,包括人口统计信息,糖尿病自我护理指数问卷(SCODI),糖尿病眼部护理自我护理问卷(SCFDE),视力障碍问卷的影响(IVI-泰国版),和DR严重程度分级的视网膜图像。数据分析利用描述性统计,卡方检验,t检验,还有MANOVA.
    经过8周和16周的SCPP,与对照组相比,实验组在参与自我护理和眼睛护理行为方面的平均得分显著较高(p<0.001).得分最高的是自我保健和眼睛保健信心行为,其次是维护,监测,和管理。此外,在第16周,HbA1c水平和VRQoL显着降低,并低于对照组(分别为p<0.001和p<0.05)。然而,VA没有显着差异,到第16周,两组的DR严重程度均增加。
    SCPP使患有DR的个人受益,增强他们的信心和执行能力,监视器,管理自我照顾行为。这些策略有助于改善糖尿病管理,提高生活质量,减少DR相关的失明。建议将SCPP集成到常规DR管理中,护士在监督和推动这种整合方面发挥着关键作用,强调护士在管理这一全球性疾病中的关键作用。
    泰国临床试验注册(TCTR20230302002)。
    UNASSIGNED: Diabetic retinopathy (DR) is the most common microvascular complication of diabetes, leading to visual impairment and eventual blindness. Promoting self-care behaviors is crucial in controlling DR progression and preventing blindness.
    UNASSIGNED: This study aimed to investigate the effects of a Self-Care Promoting Program (SCPP) on engagement in self-care behaviors, HbA1c levels, visual acuity (VA), severity of DR, and vision-related quality of life (VRQoL) among individuals with type 2 diabetes and DR.
    UNASSIGNED: This study employed a single-blind randomized controlled trial design to compare SCPP with conventional diabetic care interventions (standard care). The SCPP was based on the Self-Care of Chronic Illness Theory, Self-efficacy theory, and the Association of Diabetic Care and Education Specialist (ADCES) guidelines incorporating health education, self-care maintenance, monitoring, and management skills training over 12 weeks. Ninety-eight participants were randomly allocated to the experimental or control group (n = 49 per group). While the experimental group received SCPP alongside standard care, the control group received standard care alone. Data collection occurred between May 2022 and March 2023 and included demographic information, the Self-Care of Diabetes Index questionnaire (SCODI), the self-care for diabetes eye care questionnaire (SCFDE), the impact of visual impairment questionnaire (IVI-Thai version), and retinal images for DR severity grading. Data analysis utilized descriptive statistics, Chi-Square tests, t-tests, and MANOVA.
    UNASSIGNED: Following 8 and 16 weeks of SCPP, the experimental group had significantly higher mean scores in engagement with self-care and eye-care behaviors compared to the control group (p <0.001). The highest scores were observed in self-care and eye-care confidence behaviors, followed by maintenance, monitoring, and management. Furthermore, HbA1c levels and VRQoL significantly decreased and were lower than those of the control group at week 16 (p <0.001 and p <0.05, respectively). However, there were no significant differences in VA, and DR severity increased in both groups by week 16.
    UNASSIGNED: SCPP benefits individuals with DR, enhancing their confidence and ability to perform, monitor, and manage self-care behaviors. These strategies contribute to improved diabetes management, enhanced quality of life, and reduced DR-related blindness. Integrating SCPP into routine DR management is recommended, with nurses playing a pivotal role in overseeing and driving this integration, highlighting the critical role of nurses in managing this widespread global disease.
    UNASSIGNED: Thai Clinical Trials Registration (TCTR20230302002).
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  • 文章类型: Journal Article
    遗传性视锥细胞疾病(ICD)是遗传性视网膜疾病(IRD)的异质性亚组,儿童和工作年龄成年人视力丧失的主要原因。ICD是由黄斑中视锥光感受器的功能障碍引起的,并表现为色觉丧失和视敏度降低。目前,37个基因与不同形式的ICD相关;然而,几乎一半的患者没有接受分子诊断.这篇综述将讨论已知的ICD基因,它们的分子功能,以及它们引起的疾病,专注于最常见的ICD形式,包括色盲,渐进性锥体营养不良(CODs),和锥杆营养不良(CORD)。它将讨论近年来出现的基因特异性疗法,以治疗一些更常见的ICD患者。
    Inherited cone disorders (ICDs) are a heterogeneous sub-group of inherited retinal disorders (IRDs), the leading cause of sight loss in children and working-age adults. ICDs result from the dysfunction of the cone photoreceptors in the macula and manifest as the loss of colour vision and reduced visual acuity. Currently, 37 genes are associated with varying forms of ICD; however, almost half of all patients receive no molecular diagnosis. This review will discuss the known ICD genes, their molecular function, and the diseases they cause, with a focus on the most common forms of ICDs, including achromatopsia, progressive cone dystrophies (CODs), and cone-rod dystrophies (CORDs). It will discuss the gene-specific therapies that have emerged in recent years in order to treat patients with some of the more common ICDs.
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  • 文章类型: Journal Article
    CRB1基因的突变与多种视网膜病变相关,其表型变异性会导致严重的视力损害。CRB1基因在视网膜发育中起作用,在大脑皮层和海马中表达,但是它在认知中的作用以前还没有描述过。这项研究比较了CRB1视网膜病变个体与其他视网膜病变受试者和正常人群的认知功能。
    方法:使用认知功能的神经心理学测验来测试患有CRB1和非CRB1视网膜病变的个体,并将结果与标准化的规范数据集进行比较。
    结果:CRB1视网膜病变受试者在即时(p=0.001)和延迟记忆(p=0.007)的学习任务列表中的表现明显优于非CRB1视网膜病变受试者。语义言语流畅性测试(p=0.017),言语智商数字跨度子检验(p=0.037),和较高的执行功能的估计测试(p=0.020),但不在其余的认知功能测试(p>0.05)。在记忆测试(p<0.05)和总体言语智商测试(p=0.0012)的所有领域中,CRB1视网膜病变受试者的得分均显着高于正常人群。非CRB1视网膜病变受试者在故事回忆中的得分明显高于正常人群,口语流利,和总体言语智商测试(p=0.0016)。
    结论:患有CRB1视网膜病变的受试者可能在记忆和学习方面具有增强的认知功能。需要进一步的工作来了解CRB1在认知中的作用。
    Mutations in the CRB1 gene are associated with a diverse spectrum of retinopathies with phenotypic variability causing severe visual impairment. The CRB1 gene has a role in retinal development and is expressed in the cerebral cortex and hippocampus, but its role in cognition has not been described before. This study compares cognitive function in CRB1 retinopathy individuals with subjects with other retinopathies and the normal population.
    METHODS: Neuropsychological tests of cognitive function were used to test individuals with CRB1 and non-CRB1 retinopathies and compare results with a standardised normative dataset.
    RESULTS: CRB1 retinopathy subjects significantly outperformed those with non-CRB1 retinopathy in list learning tasks of immediate (p = 0.001) and delayed memory (p = 0.007), tests of semantic verbal fluency (p = 0.017), verbal IQ digit span subtest (p = 0.037), and estimation test of higher execution function (p = 0.020) but not in the remaining tests of cognitive function (p > 0.05). CRB1 retinopathy subjects scored significantly higher than the normal population in all areas of memory testing (p < 0.05) and overall verbal IQ tests (p = 0.0012). Non-CRB1 retinopathy subjects scored significantly higher than the normal population in story recall, verbal fluency, and overall verbal IQ tests (p = 0.0016).
    CONCLUSIONS: Subjects with CRB1 retinopathy may have enhanced cognitive function in areas of memory and learning. Further work is required to understand the role of CRB1 in cognition.
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  • 文章类型: English Abstract
    目的:研究冲突地区枪械相关眼外伤后士兵的预后因素和功能视觉结果。
    方法:于2017年1月至2022年12月在三家军队医院的眼科进行了横断面分析研究。选择了与枪支有关的眼外伤的士兵。流行病学和临床数据,研究了预后因素和功能结局.使用IBM-SPSS版本23.0软件进行统计分析。进行了单变量和多变量分析,P值<0.05被认为具有统计学意义。
    结果:共纳入136例患者的162只眼。平均年龄为28.93±6.52岁。所有患者均为男性。简易枪支是最常见的原因(77%)。26例(19.1%)患者双侧受累。入院时受累眼的平均视力为1.66±1.04logMAR。闭合性全球伤害占主导地位(72%)。地球上最常见的解剖性病变是前房积血(23.4%)和玻璃体出血(19.7%)。平均最终视力为1.38±1.17logMAR,在50%的眼睛中观察到失明。影响最终视力的因素是创伤类型,初始视力,前房积血和玻璃体出血。
    结论:在喀麦隆冲突地区,由于与枪支有关的眼睛受伤而失明的情况很常见。戴防护眼镜或护目镜可能会降低其频率。
    OBJECTIVE: To study prognostic factors and functional visual outcomes of soldiers after firearm-related ocular trauma in the conflict zone.
    METHODS: A cross-sectional analytical study was carried out from January 2017 to December 2022 in the ophthalmology departments of three military hospitals. Soldiers with firearm-related ocular trauma were selected. Epidemiological and clinical data, prognostic factors and functional outcomes were studied. Statistical analyses were performed using IBM-SPSS version 23.0 software. Univariate and multivariate analyses were performed, and a P-value<0.05 was considered statistically significant.
    RESULTS: A total of 162 eyes of 136 patients were included. The mean age was 28.93±6.52 years. All patients were male. Improvised firearms were the most frequent cause (77%). Bilateral involvement was observed in 26 patients (19.1%). The mean visual acuity of the affected eyes was 1.66±1.04logMAR on admission. Closed globe injuries predominated (72%). The most frequent anatomical lesions of the globe were hyphema (23.4%) and vitreous hemorrhage (19.7%). The mean final visual acuity was 1.38±1.17logMAR, and blindness was observed in 50% of eyes. Factors influencing final visual acuity were type of trauma, initial visual acuity, hyphema and vitreous hemorrhage.
    CONCLUSIONS: Blindness due to firearm-related eye injuries in the conflict zone of Cameroon is common. Wearing protective glasses or visors might reduce its frequency.
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  • 文章类型: Journal Article
    评估导盲犬使用者对远程康复可行性的看法,以满足其O&M需求。
    一项在线调查收集了来自56名导盲犬(GD)用户的见解(平均年龄=59,GD使用平均值=4,平均使用时间=22年)。13位GD用户进一步参与了访谈或焦点小组,以探索调查响应。使用内容分析对数据进行分析。
    大多数(40)是盲人,16人视力低下,具有中级(25)和高级(25)通信技术熟练。大多数GD用户(46人)接受了住宅培训,10人接受了一对一的访问。定性分析显示接受远程康复服务,以可访问性为优势。然而,GD用户对安全性表示担忧,行为观察的潜在损失,社会联系的丧失。成功取决于技术的类型,服务类型,和个人属性。
    虽然可行,远程康复服务可能并非普遍适用于所有培训阶段。服务设计的灵活性和适用性对于适应个人偏好和经验水平是必要的。
    为盲人或低视力的个人提供远程定向和移动性(O&M)服务可能提供混合服务交付模式,减少等待时间和旅行成本。远程运维服务可以让康复专业人员跨境提供服务,到农村和偏远地区,并达到更广泛的客户群。康复专业人员应与技术公司合作,以改善远程康复服务的提供并解决客户的担忧。康复专业人员应确保他们利用这种远程康复服务的方法灵活且以患者为中心,满足客户对面对面服务的需求。
    UNASSIGNED: To assess guide dog users\' perspectives on the feasibility of telerehabilitation for their O&M needs.
    UNASSIGNED: An online survey gathered insights from 56 guide dog (GD) users (Mean age = 59, Mean GD used = 4, Mean duration of use = 22 years). Thirteen GD users further participated in interviews or focus groups to explore survey responses. Data were analyzed using content analysis.
    UNASSIGNED: Most (40) were blind, and 16 had low vision, with intermediate (25) and advanced (25) communication technology proficiency. Most GD users (46) underwent residential training, and 10 received one-on-one visits. Qualitative analysis revealed acceptance of telerehabilitation services, citing accessibility as an advantage. However, GD users expressed concerns about safety, potential loss of behavioral observation, and social contact loss. Success depended on the type of technology, service type, and personal attributes.
    UNASSIGNED: While feasible, telerehabilitation services may not be universally suitable for all training stages. Flexibility and applicability in service design are necessary to accommodate individual preferences and experience levels.
    Telerehabilitation of Orientation & Mobility (O&M) services for individuals that are blind or have low vision potentially offers a hybrid service delivery mode, reducing wait time and travel costs.A remote O&M service offer could allow rehabilitation professionals to provide services across borders, to rural and remote regions, and reach a broader client base.Rehabilitation professionals should collaborate with technology companies to improve remote rehabilitation service delivery and address clients’ concerns.Rehabilitation professionals should ensure that their approach to utilizing this telerehabilitation services is flexible and patient-centered, accommodating the client’s need for in-person services.
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  • 文章类型: Journal Article
    最近的研究表明,成年人的大脑在感官处理方面非常适应。在这种情况下,也有人认为,结构“蓝图”可能从根本上限制神经可塑性变化,例如,对感觉剥夺的反应。这里,在10周的时间里,我们对12名盲人参与者和14名有视力的参与者进行了回声定位培训,并在pre-post设计中使用MRI来测量大脑功能和结构的变化。我们发现,盲人参与者和有视力的参与者一起显示出训练引起的左,右V1的激活增加,以响应回声,这一发现很难与感觉皮层严格按模态组织的观点相协调。Further,盲人参与者和有视力的参与者表现出训练诱导的右A1激活增加,以响应声音本身(即不是回声特定的),伴随着盲人参与者右侧A1和视力参与者相邻声学区域的灰质密度增加。视力参与者和盲人参与者之间功能结果的相似性与重组可能受两组相似原则支配的想法一致,然而,我们的结构分析还显示了组间的差异,这表明可能需要更细致入微的观点。
    Recent work suggests that the adult human brain is very adaptable when it comes to sensory processing. In this context, it has also been suggested that structural \"blueprints\" may fundamentally constrain neuroplastic change, e.g. in response to sensory deprivation. Here, we trained 12 blind participants and 14 sighted participants in echolocation over a 10-week period, and used MRI in a pre-post design to measure functional and structural brain changes. We found that blind participants and sighted participants together showed a training-induced increase in activation in left and right V1 in response to echoes, a finding difficult to reconcile with the view that sensory cortex is strictly organized by modality. Further, blind participants and sighted participants showed a training induced increase in activation in right A1 in response to sounds per se (i.e. not echo-specific), and this was accompanied by an increase in gray matter density in right A1 in blind participants and in adjacent acoustic areas in sighted participants. The similarity in functional results between sighted participants and blind participants is consistent with the idea that reorganization may be governed by similar principles in the two groups, yet our structural analyses also showed differences between the groups suggesting that a more nuanced view may be required.
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