focus

焦点
  • 文章类型: Journal Article
    背景:经历正常衰老的老年人构成了大多数在听力学诊所寻求服务的患者。虽然研究承认,老年人的言语感知能力可能会在较低级别的言语识别或歧视中减弱,人们不太担心衰老如何影响更高层次的言语理解,特别是在音调语言中。本研究旨在探讨衰老对普通话焦点句中通过韵律特征传达的隐含意图理解的影响。在安静和嘈杂的环境中。
    方法:27名年轻听众(17至26岁)和27名年长听众(58至77岁)参与了焦点理解任务。他们的任务是用五个焦点条件(初始主题焦点,内侧状语焦点,中间动词焦点,最终的对象焦点,和中性非焦点)在五个背景条件下:安静,白噪声(在0和-10dB信噪比下,SNR),和竞争语音(在0和-10-dBSNR)。理解性能基于准确率进行分析,和潜在的处理模式使用混淆矩阵进行评估。
    结果:年轻的听众在安静的环境中始终在焦点条件下表现出色,但在信噪比为-10dB的白噪声中,他们的分数下降。老年人在不同焦点条件下的得分表现出变异性,但在背景条件下则没有。他们的得分低于年轻的同龄人,在理解具有内侧状语焦点的句子中得分最高。对混淆矩阵的分析表明,年轻人很少会误认为焦点条件,而老年人倾向于将其他重点项目理解为内侧状语。
    结论:年长的听众表现反映了他们对自上而下的语言知识的过度依赖,而在解释普通话焦点句子时,它们的自下而上的声学处理减少了。这些发现为老年成年人在韵律理解中的积极认知加工提供了证据,并为在临床环境中诊断和干预言语障碍提供了见解。
    BACKGROUND: Older adults experiencing normal aging make up most patients seeking services at audiology clinics. While research acknowledges that the speech perception abilities of aging adults can be diminished in lower-level speech identification or discrimination, there is less concern about how aging affects higher-level speech understanding, particularly in tonal languages. This study aimed to explore the effects of aging on the comprehension of implied intentions conveyed through prosodic features in Mandarin focus sentences, both in quiet and noisy environments.
    METHODS: Twenty-seven younger listeners (aged 17 to 26) and 27 older listeners (aged 58 to 77) participated in a focus comprehension task. Their task was to interpret SAVO (subject-adverbial-verb-object) sentences with five focus conditions (initial subject-focus, medial adverbial-focus, medial verb-focus, final object-focus, and neutral non-focus) across five background conditions: quiet, white noise (at 0 and -10-dB signal-to-noise ratios, SNRs), and competing speech (at 0 and -10-dB SNRs). Comprehension performances were analyzed based on accuracy rates, and underlying processing patterns were evaluated using confusion matrices.
    RESULTS: Younger listeners consistently excelled across focus conditions in quiet settings, but their scores declined in white noise at the SNR of -10-dB. Older adults exhibited variability in scores across focus conditions but not in background conditions. They scored lower than their younger counterparts, with the highest scores observed in the comprehension of sentences featuring a medial adverbial-focus. Analysis of confusion matrices revealed that younger adults seldom mistook focus conditions, whereas older adults tended to comprehend the other focused items as medial adverbials.
    CONCLUSIONS: Older listeners\' performance reflects their over-reliance on top-down language knowledge, while their bottom-up acoustic processing decreases when interpreting Mandarin focus sentences. These findings provide evidence of active cognitive processing in prosody comprehension among aging adults and offer insights for diagnosing and intervening with speech disorders in clinical settings.
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  • 文章类型: Journal Article
    行为和大脑活动都有证据表明信息的结构方式,通过使用焦点,可以上调集中成分的加工,可能会突出投入的相关方面。这被认为是普遍的,无论语言编码焦点的不同方式。为了检验这个普遍主义的假设,我们需要超越更熟悉的语言策略来标记重点,例如通过语调或特定的句法结构(例如,it-clefts).因此,在这项研究中,我们检查Makhuwa-Enahara,莫桑比克北部说的一种班图语,通过言语共轭来唯一地标记焦点。向参与者展示了由语义异常成分或语义非异常成分组成的句子。此外,专注于这个特定的组成部分可以是存在或不存在。我们观察到了一个一致的模式:聚焦信息比非聚焦位置的相同信息产生了更负的N400响应。这表明,无论焦点如何标记,其结果似乎导致了对焦点信息的处理的上调。
    There is evidence from both behavior and brain activity that the way information is structured, through the use of focus, can up-regulate processing of focused constituents, likely to give prominence to the relevant aspects of the input. This is hypothesized to be universal, regardless of the different ways in which languages encode focus. In order to test this universalist hypothesis, we need to go beyond the more familiar linguistic strategies for marking focus, such as by means of intonation or specific syntactic structures (e.g., it-clefts). Therefore, in this study, we examine Makhuwa-Enahara, a Bantu language spoken in northern Mozambique, which uniquely marks focus through verbal conjugation. The participants were presented with sentences that consisted of either a semantically anomalous constituent or a semantically nonanomalous constituent. Moreover, focus on this particular constituent could be either present or absent. We observed a consistent pattern: Focused information generated a more negative N400 response than the same information in nonfocus position. This demonstrates that regardless of how focus is marked, its consequence seems to result in an upregulation of processing of information that is in focus.
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  • 文章类型: Journal Article
    心脏超声(CUS),聚焦心脏超声(FoCUS)或紧急超声心动图,经常用于心血管(CV)紧急情况。我们评估了CUS之间的相关性和差异,临床诊断和尸检结果在早期死亡的疑似CV急症患者。我们回顾性分析了131例住院24小时内死亡的连续患者的临床和尸检数据。分析了CUS的类型及其发现与临床和尸检诊断有关。58%的患者进行了CUS-83%的FoCUS,12%的急诊超声心动图,和两种类型的CUS在5%的病例。无CV病史的患者进行CUS的频率更高(64vs.40%,p=0.08),以及入院和死亡之间的时间更长(6vs.2h,p=0.021)。在7%的患者中,CUS没有定论。在10%的患者中,死因无法确定,而在26%的病例中发现了临床和死后诊断之间的差异。在多元逻辑回归模型中,只有结论性的CUS[比值比(OR)2.76,95%置信区间(CI)1.30-7.39,p=0.044]和就诊时的胸痛(OR30.19,95CI5.65-161.22,p<0.001)与一致的临床和尸检诊断独立相关.在一所三级大学的医院里,在疑似心脏急症的危重患者中,FoCUS的使用频率高于急诊超声心动图。演示时的胸痛和结论性的CUS与一致的临床和尸检诊断有关。
    Cardiac ultrasound (CUS), either focused cardiac ultrasound (FoCUS) or emergency echocardiography, is frequently used in cardiovascular (CV) emergencies. We assessed correlations and discrepancies between CUS, clinical diagnosis and the autopsy findings in early deceased patients with suspected CV emergencies. We retrospectively analysed clinical and autopsy data of 131 consecutive patients who died within 24 h of hospital admission. The type of CUS and its findings were analysed in relation to the clinical and autopsy diagnoses. CUS was performed in 58% of patients - FoCUS in 83%, emergency echocardiography in 12%, and both types of CUS in 5% of cases. CUS was performed more frequently in patients without a history of CV disease (64 vs. 40%, p = 0.08) and when the time between admission and death was longer (6 vs. 2 h, p = 0.021). In 7% of patients, CUS was inconclusive. In 10% of patients, the ante-mortem cause of death could not be determined, while discrepancies between the clinical and post-mortem diagnosis were found in 26% of cases. In the multivariate logistic regression model, only conclusive CUS [odds ratio (OR) 2.76, 95% confidence interval (CI) 1.30-7.39, p = 0.044] and chest pain at presentation (OR 30.19, 95%CI 5.65 -161.22, p < 0.001) were independently associated with congruent clinical and autopsy diagnosis. In a tertiary university hospital, FoCUS was used more frequently than emergency echocardiography in critically ill patients with suspected cardiac emergencies. Chest pain at presentation and a conclusive CUS were associated with concordant clinical and autopsy diagnoses.
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  • 文章类型: Journal Article
    该研究旨在评估在主动/被动休息期间收听首选音乐对杠铃深蹲(BS)和卧推(BP)的功率输出和心率的影响。15名参与者(13名男性和2名女性),中等阻力训练,参加了四个随机实验课程,休息间隔(主动/被动)和音乐存在(听或不听)。每个会话涉及三组BS和BP的三个重复,最大重复次数为50%。ANOVA显示了该集合对BP相对平均值和峰值功率输出的显着主要影响(p<0.001;两者)。事后比较表明,与集合1相比,集合2(p<0.001;效应大小[ES]=0.12和p<0.001;ES=0.10)和集合3(p<0.001;ES=0.11和p=0.001;ES=0.16)中的BP相对平均值和峰值功率输出显着提高。此外,观察到该组的主要影响表明BS相对峰值功率输出在各组之间降低(p=0.024),各组之间没有显著差异。与被动休息相比,主动休息期间的平均心率显着提高(p=0.032;ES=0.69)。结果表明,在BS和BP期间,听音乐对相对功率输出和心率没有显着影响。
    The study aimed to evaluate the impact of listening to preferred music during active/passive rest on power output and heart rate in barbell squats (BS) and bench presses (BP). Fifteen participants (13 males and 2 females), moderately resistance trained, were engaged in four randomized experimental sessions with varying rest intervals (active/passive) and music presence (listening or not). Each session involved three sets of three repetitions of BS and BP at a 50% one-repetition maximum. ANOVA showed a significant main effect of the set for BP relative mean and peak power output (p < 0.001; both). The post hoc comparisons indicated a significantly higher BP relative mean and peak power output in set_2 (p < 0.001; effect size [ES] = 0.12 and p < 0.001; ES = 0.10) and set_3 (p < 0.001; ES = 0.11 and p = 0.001; ES = 0.16) in comparison to set_1. Moreover, a main effect of the set indicating a decrease in BS relative peak power output across sets was observed (p = 0.024) with no significant differences between sets. A significantly higher mean heart rate during active rest in comparison to passive rest was observed (p = 0.032; ES = 0.69). The results revealed no significant effect of listening to music on relative power output and heart rate during BS and BP.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Randomized Controlled Trial
    这项研究的目的是评估瓜柳沙提取物和北欧狮子鬃毛(LM)对认知的影响。使用随机的,双盲,安慰剂对照,交叉设计,我们检查了单剂量650mg瓜柳沙提取物(AMT:AmaTea®Max)与1g北欧生长的狮子鬃毛(LM)与安慰剂(PL)。参与者参加了三次测试访问,包括神经心理学测试(Go/No-go,N-Back,和串行7s任务)评估性能,认知感知的主观评估,和生命体征。在基线(摄入前)和摄入后1和2小时测量每个评估。AMT显着(p≤0.05)提高了串行7s期间的尝试次数,总分,正确回答的数量,回复总数,以及N-Back期间的反应时间和改进的Go刺激反应时间,但它降低了Go/No-go期间No-go刺激响应中正确响应的百分比。LM显着(p≤0.05)改善了连续7s期间的尝试次数和N-Back期间的反应时间,并改善了Go/No-go中的Go刺激反应时间。AMT提高了心理清晰度,焦点,浓度,心情,和生产力在1和2小时(p<0.05);在1小时耐受压力的能力;并且在心理清晰度方面比LM和PL具有更大的评级,焦点,浓度,和生产力。PL在1小时后改善了病灶和浓度(p≤0.05)。与同龄人相比,AMT和LM提高了“幸福”和“从一切中获得最大收益”的主观评分(p<0.05);但是,这发生在LM的早期(即,摄入后1小时)。AMT独特地从基线升高血压。AMT显着改善了2小时内的认知表现和自我感知的情感认知指数,以及摄入后2小时的幸福感。相比之下,LM帮助改善工作记忆,复杂的注意力,以及摄入后2小时的反应时间和2小时内对幸福的感知。
    The aim of this study was to assess the effects of guayusa extract and Nordic Lion\'s Mane (LM) on cognition. Using a randomized, double-blind, placebo-controlled, crossover design, we examined the effects of a single dose of 650 mg guayusa extract (AMT: AmaTea® Max) vs. 1 g Nordic-grown Lion\'s Mane (LM) vs. placebo (PL). Participants attended three testing visits consisting of neuropsychological tests (Go/No-go, N-Back, and Serial 7 s tasks) assessing performance, subjective assessments of cognitive perception, and vital signs. Each assessment was measured at baseline (pre-ingestion) and 1 and 2 h post ingestion. AMT significantly (p ≤ 0.05) improved the number of attempts during Serial 7s, total score, number of correct responses, total number of responses, and reaction time during N-Back and improved Go stimulus reaction time, but it reduced the percentage of correct responses in the No-go stimulus response during Go/No-go. LM significantly (p ≤ 0.05) improved the number of attempts during Serial 7s and reaction time during N-Back and improved Go stimulus reaction time in Go/No-go. AMT improved mental clarity, focus, concentration, mood, and productivity at 1 and 2 h (p < 0.05); the ability to tolerate stress at 1 h; and had greater ratings than LM and PL for mental clarity, focus, concentration, and productivity. PL improved focus and concentration at 1 h from baseline (p ≤ 0.05). AMT and LM improved subjective ratings of \"happiness compared to peers\" and \"getting the most out of everything\" (p < 0.05); however, this occurred earlier in LM (i.e., 1 h post ingestion). AMT uniquely elevated blood pressure from baseline. AMT significantly improved cognitive performance and self-perceived cognitive indices of affect over a 2 h period and perceptions of happiness 2 h post ingestion. In comparison, LM helped improve working memory, complex attention, and reaction time 2 h post ingestion and perceptions of happiness over a 2 h period.
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  • 文章类型: Journal Article
    传统上,当存在实质性心血管疾病而没有近期随访时,建议进行正式的术前超声心动图检查。无法解释的呼吸困难,功能类别低于4METS或杜克大学活动状态指数低于34。然而,重要的是要注意,某些患者可能由于其先前存在的疾病或多种治疗而出现各种心脏异常,这些人值得考虑。麻醉前心脏POCUS的目的是及时提供临床信息。虽然它并不旨在取代传统的超声心动图,心脏POCUS无疑可以帮助麻醉医生识别无症状和潜在危险的情况,允许更准确的风险分配和个性化的病人护理。
    Formal preoperative echocardiography has traditionally been recommended when there is substantial cardiovascular disease without recent follow up, unexplained dyspnea, a functional class less than 4 METS or a Duke Activity Status Index less than 34. However, it is important to note that certain patients may present with a variety of cardiac abnormalities due to their preexisting condition or multiple treatments, and these individuals warrant consideration. The objective of pre-anesthetic cardiac POCUS is to provide clinical information in a timely manner. Although it does not aim to replace conventional echocardiography, cardiac POCUS can undoubtedly assist anesthesia practitioners in identifying asymptomatic and potentially hazardous conditions, allowing for more accurate risk allocation and individualized patient care.
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  • 文章类型: Journal Article
    基于六个详细的语言案例研究,其中重点在形态上被标记,我们提出了一种新颖的焦点标记形式理论,它可以捕捉这些以及熟悉的英语韵律重点标记。特别注意焦点融合的模式,也就是说,当焦点的不同大小和/或位置通过相同的形式不可区分地实现时。我们方法的关键成分是复杂的成分(不仅仅是文字)可能会被直接集中标记,焦点标记的选择受阻挡的支配。
    Based on six detailed case studies of languages in which focus is marked morphosyntactically, we propose a novel formal theory of focus marking, which can capture these as well as the familiar English-type prosodic focus marking. Special attention is paid to the patterns of focus syncretism, that is, when different size and/or location of focus are indistinguishably realized by the same form. The key ingredients to our approach are that complex constituents (not just words) may be directly focally marked, and that the choice of focal marking is governed by blocking.
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  • 文章类型: Journal Article
    背景:医师在通过用户反馈和对技术开发人员的增长主张将新的临床技术整合到护理实践中发挥关键作用。由于医生是技术迭代过程中涉及的利益相关者,了解他们的角色,因为用户可以提供细致入微的见解,这些技术正在探索的工作。因此,理解医生的看法对临床验证至关重要,实施,和下游采用。鉴于临床决策支持系统(CDS)的日益普及,仍然需要深入了解医生对其下游实施的看法和期望。本文探讨了医师对整合CURATE的看法。AI,一种新型的基于人工智能(AI)的临床阶段个性化给药CDS,进入临床实践。
    目的:本研究旨在了解医师整合CURATE的观点。用于临床工作的AI,并收集有关基于AI的CDSS工具实施的考虑因素的见解。
    方法:共有12名参与者完成了半结构化访谈,检查了他们的知识,经验,态度,风险,以及个性化联合治疗给药平台的未来过程,固化。AI.采访是录音,逐字转录,并手动编码。对数据进行主题分析。
    结果:总体而言,通过专题分析确定了3个广泛主题和9个次主题。主题涵盖了医生认为在新技术发展的各个阶段具有重要意义的考虑因素,包括审判,临床实施,和大规模采用。
    结论:该研究列出了医生解释基于AI的个性化给药CDSS的各种方式,固化。AI,他们的临床实践。研究指出,医生在技术探索的不同阶段的期望可以与技术开发人员和研究人员相关的实施期望进行细微差别和分层。
    Physicians play a key role in integrating new clinical technology into care practices through user feedback and growth propositions to developers of the technology. As physicians are stakeholders involved through the technology iteration process, understanding their roles as users can provide nuanced insights into the workings of these technologies that are being explored. Therefore, understanding physicians\' perceptions can be critical toward clinical validation, implementation, and downstream adoption. Given the increasing prevalence of clinical decision support systems (CDSSs), there remains a need to gain an in-depth understanding of physicians\' perceptions and expectations toward their downstream implementation. This paper explores physicians\' perceptions of integrating CURATE.AI, a novel artificial intelligence (AI)-based and clinical stage personalized dosing CDSSs, into clinical practice.
    This study aims to understand physicians\' perspectives of integrating CURATE.AI for clinical work and to gather insights on considerations of the implementation of AI-based CDSS tools.
    A total of 12 participants completed semistructured interviews examining their knowledge, experience, attitudes, risks, and future course of the personalized combination therapy dosing platform, CURATE.AI. Interviews were audio recorded, transcribed verbatim, and coded manually. The data were thematically analyzed.
    Overall, 3 broad themes and 9 subthemes were identified through thematic analysis. The themes covered considerations that physicians perceived as significant across various stages of new technology development, including trial, clinical implementation, and mass adoption.
    The study laid out the various ways physicians interpreted an AI-based personalized dosing CDSS, CURATE.AI, for their clinical practice. The research pointed out that physicians\' expectations during the different stages of technology exploration can be nuanced and layered with expectations of implementation that are relevant for technology developers and researchers.
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  • 文章类型: Journal Article
    年轻的浪漫演讲者可以通过使多个成分向左外围错位来构造句子,导致非规范的单词顺序。生产数据,然而,表明这种顺序是严格的:只有SOV序列被证明,让人想起优越性的观察。本文的第一个目标是在理解中复制这一观察结果;第二个是在干预方面得出主体对客体的模式,还有一个额外的假设,即只有嵌套的链才算作干预者。这里报道了三个实验。实验1和实验2表明,SOV解释比OSV系统更受欢迎,而且不仅是数字特征,而且[+主题]功能有助于克服干预。实验3解决了与气候有关的潜在困惑。这些结果整合了现有的基于干预的账户,传统上建立在亲戚身上,不仅提供来自矩阵子句的新证据,还研究了信息结构特征的作用。
    Young Romance speakers can structure their sentences by dislocating multiple constituents to the left periphery, resulting in non-canonical word orders. Production data, however, show that this ordering is rigid: only SOV sequences are attested, an observation reminiscent of Superiority. The first goal of the paper is to replicate this observation in comprehension; the second is to derive the Subject-over-Object pattern in terms of Intervention, with the additional assumption that only nested chains count as interveners. Three experiments are reported here. Experiment 1 and Experiment 2 show that SOVs interpretations are systematically favored over OSV and that not only Number features, but also a [+Topic] feature help to overcome intervention. Experiment 3 addresses a potential confound related to the clitic. These results integrate existing intervention-based accounts, traditionally built on relatives, providing not only new evidence coming from matrix clauses, but also investigating the role of information-structure features.
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