Word processing

文字处理
  • 文章类型: Journal Article
    以前的研究表明,像面孔,单词是整体处理的,或者通过自动表示它们的部分组合来处理的。被认为是单词整体处理基础的自动化假设个人对这些过程的控制水平相对较低。然而,他们还可能能够从他们的环境中学习处理单词作为一个整体是否是最有效的处理策略-这将需要对相应的过程进行至少一些控制。事实上,先前的研究在面部整体处理的背景下支持后一种说法:当提供一项任务时,参与者应忽略一半的刺激(无关部分),并选择性地注意另一半(目标部分),参与者在忽略无关紧要的部分时变得更好(即,这表明响应不同于任务上下文中相关部分的响应)。在目前的工作中,我们将这些考虑扩展到整体文字处理。我们的结果支持在整体文字处理的背景下学习的注意力帐户。当不相关的单词部分对目标单词一半的判断有系统的帮助时,参与者更多地参与整体处理(与当无关紧要的词“一半”具有误导性时)。这反映了偶然的统计学习过程,在该过程中,个人将不相关的单词一半识别为提供有关目标一半的有用或误导性信息。
    Previous research has shown that, like faces, words are processed either holistically or through the automatic representation of their parts combined. The automaticity assumed to underlie the holistic processing of words presupposes that individuals have a relatively low level of control over these processes. However, they may also be capable of learning from their environments whether processing words as a whole is the most efficient processing strategy-which would require at least some control over the corresponding processes. In fact, previous research supports this latter account in the context of the holistic processing of faces: when provided a task in which participants should ignore half of a stimuli (the irrelevant part) and pay selective attention to the other half (the target part), the participants become better at ignoring the irrelevant part when it is commonly misleading (i.e., this suggests a response that is different from that of the relevant part in the context of the task). In the present work, we extend these considerations to holistic word processing. Our results support a learned attentional account in the context of holistic word processing. When an irrelevant word part is systematically helpful for the judgment of a target word half, participants engage more in holistic processing (vs. when the irrelevant word half is misleading). This reflects an incidental statistical learning process in which individuals identify the irrelevant word half as either providing helpful or misleading information about the target half.
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  • 文章类型: Journal Article
    对未研究的正字法进行成像以解开其神经元相关性及其对现有计算和神经解剖模型的影响越来越感兴趣。这里,我们回顾了当前有关阿拉伯语单词的大脑作图文献。我们首先简要描述了阿拉伯语的一些独特语言特征,这些特征挑战了当前的阅读认知模式。然后,我们评估了现有的功能性神经影像学研究,这些研究调查了书面阿拉伯语文字处理。我们的审查显示,(1)阿拉伯语仍未得到充分研究,(2)研究最多的特征涉及阿拉伯语阅读中元音和双音的影响,(3)根据现有的阅读模型,如双路级联,三角形,和连接主义双重过程模型,和(4)当前的证据是不可靠的,当它涉及到确切的神经元通路,维持阿拉伯语文字处理。总的来说,尽管阿拉伯语具有一些独特的语言特点,挑战并最终丰富了当前的阅读模式,现有的功能性神经影像学文献未能提供有关阿拉伯语阅读的大脑网络的可靠证据.最后,我们强调需要对阿拉伯语的语言特征进行更系统的研究,以建立同时具有特异性和普遍性的理论和神经解剖学模型。
    There is a growing interest in imaging understudied orthographies to unravel their neuronal correlates and their implications for existing computational and neuroanatomical models. Here, we review current brain mapping literature about Arabic words. We first offer a succinct description of some unique linguistic features of Arabic that challenge current cognitive models of reading. We then appraise the existing functional neuroimaging studies that investigated written Arabic word processing. Our review revealed that (1) Arabic is still understudied, (2) the most investigated features concerned the effects of vowelling and diglossia in Arabic reading, (3) findings were not always discussed in the light of existing reading models such as the dual route cascaded, the triangle, and the connectionist dual process models, and (4) current evidence is unreliable when it comes to the exact neuronal pathways that sustain Arabic word processing. Overall, despite the fact that Arabic has some unique linguistic features that challenge and ultimately enrich current reading models, the existing functional neuroimaging literature falls short of offering a reliable evidence about brain networks of Arabic reading. We conclude by highlighting the need for more systematic studies of the linguistic features of Arabic to build theoretical and neuroanatomical models that are concurrently specific and general.
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  • 文章类型: Journal Article
    背景:为了提高基于稳态视觉诱发电位(SSVEP)的拼写器的信息传输速率(ITR),应该使用更多带有闪烁符号的字符。增加符号的数量可能会降低分类准确性。混合脑机接口(BCI)通过利用两个或更多个控制信号来提高BCI系统的整体性能。在同时混合BCI中,各种模式同时彼此工作,这增强了ITR。
    方法:在我们提出的拼写器中,同时应用肌电图(EMG)和SSVEP的组合来增加ITR。要实现36个字符,只使用了九个刺激符号。每个符号允许根据肌肉活动的四种状态选择四个字符。SSVEP检测到对象正在关注哪个符号,EMG从专用于该符号的四个字符中确定目标字符。在EMG模态中应用了字符编码的频率,在SSVEP模态中考虑了延迟。对10名健康受试者进行在线实验。
    结果:该混合系统的平均ITR为96.1bit/min,精度为91.2%。拼写速度为20.9char/min。不同的受试者具有不同的潜伏期值。我们在所有受试者中使用了0.2s的平均潜伏期。对每种模式的评估表明,SSVEP分类精度因受试者而异,从80%到100%,而所有受试者的肌电图分类准确率约为100%。
    结论:与基于SSVEP或SSVEP-EMG的最新系统相比,我们提出的混合BCI拼写器显示出改进的系统速度,并且可以提供一个用户友好的,用于拼写器应用的实用系统。
    BACKGROUND: To enhance the information transfer rate (ITR) of a steady-state visual evoked potential (SSVEP)-based speller, more characters with flickering symbols should be used. Increasing the number of symbols might reduce the classification accuracy. A hybrid brain-computer interface (BCI) improves the overall performance of a BCI system by taking advantage of two or more control signals. In a simultaneous hybrid BCI, various modalities work with each other simultaneously, which enhances the ITR.
    METHODS: In our proposed speller, simultaneous combination of electromyogram (EMG) and SSVEP was applied to increase the ITR. To achieve 36 characters, only nine stimulus symbols were used. Each symbol allowed the selection of four characters based on four states of muscle activity. The SSVEP detected which symbol the subject was focusing on and the EMG determined the target character out of the four characters dedicated to that symbol. The frequency rate for character encoding was applied in the EMG modality and latency was considered in the SSVEP modality. Online experiments were carried out on 10 healthy subjects.
    RESULTS: The average ITR of this hybrid system was 96.1 bit/min with an accuracy of 91.2%. The speller speed was 20.9 char/min. Different subjects had various latency values. We used an average latency of 0.2 s across all subjects. Evaluation of each modality showed that the SSVEP classification accuracy varied for different subjects, ranging from 80% to 100%, while the EMG classification accuracy was approximately 100% for all subjects.
    CONCLUSIONS: Our proposed hybrid BCI speller showed improved system speed compared with state-of-the-art systems based on SSVEP or SSVEP-EMG, and can provide a user-friendly, practical system for speller applications.
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  • 文章类型: Journal Article
    越来越多的证据支持心理意象对言语信息保留的功效。运动图像,想象自己与要学习的对象进行物理互动,与物理参与较少的图像相比,它是一种最佳形式。然而,当从事心理意象时,它发生在特定的背景下,可能会影响想象的动作,从而影响心理意象的助记作用。在第一项研究中,参与者得到了附带学习的指导:心理排练,视觉图像,运动图像或定位运动图像。后者,其中包括想象在一个连贯的情况下与一个项目的物理互动,产生了最高比例的正确召回。这突出了记忆在支持情境动作中的作用,并为进一步发展体现的心理意象的记忆潜力提供了可能性。此外,项目级分析表明,从事情境运动意象的人记住单词主要是由于单词\'所指的感觉运动特征。第二项研究调查了项目间独特性在这种影响中的作用,未能确定情境和运动元素需要在多大程度上与众不同,才能被认为是有用的检索线索并产生最佳的记忆性能。
    Mounting evidence supports the efficacy of mental imagery for verbal information retention. Motor imagery, imagining oneself interacting physically with the object to be learned, emerges as an optimal form compared to less physically engaging imagery. Yet, when engaging in mental imagery, it occurs within a specific context that may affect imagined actions and consequently impact the mnemonic benefits of mental imagery. In a first study, participants were given instructions for incidental learning: mental rehearsal, visual imagery, motor imagery or situated motor imagery. The latter, which involved imagining physical interaction with an item within a coherent situation, produced the highest proportion of correct recalls. This highlights memory\'s role in supporting situated actions and offers the possibility for further developing the mnemonic potential of embodied mental imagery. Furthermore, item-level analysis showed that individuals who engaged in situated motor imagery remembered words primarily due to the sensorimotor characteristics of the words\' referent. A second study investigating the role of inter-item distinctiveness in this effect failed to determine the extent to which the situational and motor elements need to be distinctive in order to be considered useful retrieval cues and produce an optimal memory performance.
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  • 文章类型: Journal Article
    如何处理复合词仍然是汉语阅读研究的核心问题。中文阅读模型假设在文字处理过程中,所有可能的共享字符的单词都被激活,并且这些激活的单词争夺获胜者(Li&Pollatsek,2020)。本研究旨在研究中文阅读中嵌入成分词是否与整个复合词竞争。在研究1中,我们分析了两个现有的词汇决策数据库,并揭示了成分词频率的抑制作用和字符频率对第一个成分的促进作用。在研究2中,我们进行了两个阶乘实验,以进一步检查第一分量词频率的影响,字符频率控制。结果一致表明,成分词频具有明显的抑制作用。总的来说,这些发现支持了这样一个理论命题,即在文字处理过程中,成分词和复合词都被激活并参与竞争。这为中文阅读中的复合词处理提供了一种新的方法,也为文献中报道的字符频率效应的混合结果提供了可能的解决方案。(PsycInfo数据库记录(c)2024APA,保留所有权利)。
    How compound words are processed remains a central question in research on Chinese reading. The Chinese reading model assumes that all possible words sharing characters are activated during word processing and these activated words compete for a winner (Li & Pollatsek, 2020). The present studies aimed to examine whether embedded component words compete with whole compound words in Chinese reading. In Study 1, we analyzed two existing lexical decision databases and revealed inhibitory effects of component-word frequency and facilitative effects of character frequency on the first components. In Study 2, we conducted two factorial experiments to further examine the effects of first component-word frequency, with character frequencies controlled. The results consistently indicated significant inhibitory effects of component-word frequency. Collectively, these findings support the theoretical proposition that both component words and compound words are activated and engage in competition during word processing. This provides a new approach to compound word processing in Chinese reading and a possible solution to mixed results of character frequency effects reported in the literature. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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  • 文章类型: Journal Article
    在需要细粒度的社会环境中,面孔和文字是永远存在的刺激,有效地区分他们的选民,以获得意义。只要这些刺激共享多个特征,同时在重要方面成为不同的视觉对象类别,随之而来的辩论是关于它们的处理是否可以简化为一个共同的机制,或者每个类别是否调动独家资源。因此,我们首先简要介绍特定领域和一般领域的账户,作为相反的观点,强调面部和文字处理中缺乏和存在共性,分别。然后,我们专注于如何处理面孔和单词。虽然面部通常与面部特征的整体处理相关联,创造一个感知整体,关于文字处理没有这样的共识。人们认为单词依赖于逐个字母的处理或更接近于面孔的处理,因为它们也是专业知识的对象。最后,我们通过概述我们的最新研究成果来推进辩论。这些发现提供了面部和文字处理的更直接的比较,通过同时将两种刺激结合到一个任务中。
    Faces and words are ever-present stimuli in social environments that require fine-grained, efficient discrimination of their constituents in order to acquire meaning. Provided that these stimuli share multiple characteristics, while simultaneously being different visual object categories in important ways, a debate has ensued pertaining to whether their processing can be reduced to a common mechanism or whether each category mobilizes exclusive resources. We thus first present briefly domain-specific and domain-general accounts, as opposing perspectives that highlight the absence and presence of commonalities in face and word processing, respectively. We then focus on how faces and words are processed. While faces are usually associated with holistic processing of facial features, to create a perceptual whole, there is no such consensus pertaining to word processing. Words have been argued to rely on either letter-by-letter processing or in a way closer to that of faces, since they are also objects of expertise. Lastly, we advance the debate by providing an overview of our latest research findings. These findings provide a more direct comparison of face and word processing, by incorporating both stimuli in one task concurrently.
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  • 文章类型: Journal Article
    使用事件相关电位(ERP)技术,这项研究连续提出了名称(以超或亚阈值方式)和情感词,以检查在词类判断任务(确定情感词是名词还是形容词)和效价判断任务(确定情感词是积极还是消极)中,自我相关提示(自我名称)如何影响情感文字处理。在超阈值条件下,仅在效价判断任务中,自我相关的阳性单词比阴性单词引起的早期后验阴性(EPN)更为显着。相比之下,在亚阈值条件下,仅在单词类判断任务中,自我相关的否定词引起的晚期正电位(LPP)比肯定词增强。这些结果表明,在阈值以上和阈值以下条件下,自相关提示都会影响情绪文字处理;尽管如此,该效应表现为在超阈值条件下的自正偏差和在亚阈值条件下的自负偏差。实验任务调节这些动力学。
    Using the event-related potentials (ERPs) technique, this study successively presented names (in either a supra- or subthreshold manner) and emotional words to examine how self-relevant cue (self-name) affects emotional word processing in word class judgment task (to determine whether an emotional word is a noun or adjective) and valence judgment task (to determine whether an emotional word is positive or negative). At the suprathreshold condition, self-relevant positive words elicited a more significant Early posterior negativity (EPN) than negative words only in the valence judgment task. In contrast, at the subthreshold condition, self-relevant negative words elicited an enhanced Late positive potential (LPP) than positive words only in the word class judgment task. These results indicate that self-relevant cue affects emotional word processing at both suprathreshold and subthreshold conditions; nevertheless, the effect manifests as self-positive bias at the suprathreshold condition and self-negative bias at the subthreshold condition. The experimental task modulates these dynamics.
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  • 文章类型: Journal Article
    疼痛素数的管理已被证明会影响对连续呈现的语义刺激的感知。疼痛的素数导致疼痛相关的负价评级,负,积极的话语比没有素数。与疼痛相关的单词比负面单词的效果更大。这种效应的神经相关性的身份仍然未知。在这个脑电图实验中,48名健康受试者接受中等强度的有害电刺激。在这个启动过程中,他们被呈现为可变效价的形容词(疼痛相关,负,积极的,和中立)。在N1(120-180ms)期间分析触发的事件相关电位,P2(170-260ms),P3(300-350ms),N400(370-550ms),和两个晚期正复分量(LPC1[650-750ms]和LPC2[750-1000ms])。与后期成分(N400,LPC1和LPC2)中的阳性单词相比,阴性和疼痛相关单词的事件相关电位更大。主要在额叶区域。早期成分(N1,P2)受单词类别的影响较小,但受主要条件的影响(N1振幅小于没有疼痛刺激的情况,P2振幅大于无疼痛刺激)。后来的组件(LPC1,LPC2)不受主要条件的影响。在行为水平而不是电生理水平上发现了涉及主要和单词类别的交互效应。这一发现表明,相互作用效应不会直接从行为水平转化为电生理水平。讨论了这种差异的可能原因。
    The administration of painful primes has been shown to influence the perception of successively presented semantic stimuli. Painful primes lead to more negative valence ratings of pain-related, negative, and positive words than no prime. This effect was greater for pain-related than negative words. The identities of this effect\'s neural correlates remain unknown. In this EEG experiment, 48 healthy subjects received noxious electrical stimuli of moderate intensity. During this priming, they were presented with adjectives of variable valence (pain-related, negative, positive, and neutral). The triggered event-related potentials were analyzed during N1 (120-180 ms), P2 (170-260 ms), P3 (300-350 ms), N400 (370-550 ms), and two late positive complex components (LPC1 [650-750 ms] and LPC2 [750-1000 ms]). Larger event-related potentials were found for negative and pain-related words compared to positive words in later components (N400, LPC1, and LPC2), mainly in the frontal regions. Early components (N1, P2) were less affected by the word category but were by the prime condition (N1 amplitude was smaller with than without painful stimulation, P2 amplitude was larger with than without painful stimulation). Later components (LPC1, LPC2) were not affected by the prime condition. An interaction effect involving prime and word category was found on the behavioral level but not the electrophysiological level. This finding indicates that the interaction effect does not directly translate from the behavioral to the electrophysiological level. Possible reasons for this discrepancy are discussed.
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  • 文章类型: Journal Article
    本研究利用事件相关电位(ERP)记录技术来研究情绪语境对句子中情绪信息处理的影响。三种类型的情感一致性话语材料(中性-中性,正-正-负)被构造为特异性表达中性,积极和消极的情绪,分别。每篇演讲由两个句子组成,在第二句的倒数第二个位置嵌入了情感上有意义的单词。参与者被要求阅读这些文本,对阅读理解问题的反应,并记录由情感单词引起的ERP幅度。结果表明,在涉及情绪背景的N400和晚期正分量振幅中存在三方相互作用,情感词和大脑半球,在额叶和中央大脑区域观察到。值得注意的是,正面和负面语境对正面词语的反应存在显著差异。研究结果表明,情绪语境对情绪词的加工有重大影响。积极的话语,与消极的相比,受情感环境的影响更大,特别是在大脑的额叶和中央区。
    This research utilized event-related potential (ERP) recording technology to examine the effect of emotional context on the processing of emotional information in sentences. Three types of emotion-consistent discourse materials (neutral-neutral, positive-positive and negative-negative) were constructed to specifically express neutral, positive and negative emotions, respectively. Each discourse comprised two sentences, with the emotionally significant words embedded at the penultimate position of the second sentence. Participants were asked to read these texts, respond to reading comprehension questions and the ERP amplitude induced by the emotional words was recorded. The results indicated a tripartite interaction in the N400 and Late positive component amplitudes involving emotional context, emotional words and brain hemispheres, observed in both frontal and central brain regions. Notably, there was a significant difference in response to positive words between positive and negative contexts. The findings suggest that emotional context has a substantial effect on the processing of emotional words. Positive words, in comparison to negative ones, are more influenced by emotional context, particularly in the frontal and central regions of the brain.
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  • 文章类型: Journal Article
    基本的计算机技能对于撰写研究论文的作者至关重要,因为它有可能使研究人员更轻松地完成任务。本文为撰写研究论文的新手作者提供了有关基本软件程序的一瞥。这些软件应用程序有助于简化编写过程,提高工作质量,并确保文件的格式正确。它涵盖了文字处理软件,语法校正软件,书目管理软件,释义工具,书写工具,和统计软件。所有描述的工具都可以免费使用。因此,这将有助于来自资源有限环境的研究人员或忙碌的医生,他们获得较少的研究写作时间。我们认为这篇综述论文将有助于为希望撰写高质量研究论文的新手作者提供有价值的见解和指导。
    Basic computer skills are essential for authors writing research papers as it has the potential to make the task easier for a researcher. This article provides a glimpse about the essential software programs for a novice author writing a research paper. These software applications help streamline the writing process, improve the quality of work, and ensure that papers are formatted correctly. It covers word processing software, grammar correction software, bibliography management software, paraphrasing tool, writing tools, and statistical software. All of the tools described are free to use. Hence, it would help researchers from resource-limited settings or busy physicians who get lesser time for research writing. We presume this review paper would help provide valuable insights and guidance for novice authors looking to write a high-quality research paper.
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