首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
Reingold, Reichle, Glaholt, and Sheridan (2012) reported a gaze‐contingent eye‐movement experiment in which survival‐curve analyses were used to examine the effects of word frequency, the availability of parafoveal preview, and initial fixation location on the time course of lexical processing. The key results of these analyses suggest that lexical processing begins very rapidly (after approximately 120 ms) and is supported by substantial parafoveal processing (more than 100 ms). Because it is not immediately obvious that these results are congruent with the theoretical assumption that words are processed and identified in a strictly serial manner, we attempted to simulate the experiment using the E‐Z Reader model of eye‐movement control (Reichle, 2011). These simulations were largely consistent with the empirical results, suggesting that parafoveal processing does play an important functional role by allowing lexical processing to occur rapidly enough to mediate direct control over when the eyes move during reading.  相似文献   

2.
The Time Course of Attention: It Is Better Than We Thought   总被引:1,自引:0,他引:1  
ABSTRACT— What is the time course of attention? Research using rapid-stimulus streams has suggested that it is rather slow: Attention takes half a second to recover from processing one thing before it can process the next. This period is referred to as the attentional blink , and it is thought to reflect a fundamental bottleneck in conscious processing. If this period does exist, such a limitation would have severe consequences in real-life situations in which multiple events may rapidly succeed each other (e.g., in traffic). However, findings that support the attentional blink are at odds with other findings indicating that attention is not reduced, but enhanced, following potentially important occurrences. The article reviews evidence that these opposite effects are actually closely related. The attentional blink is a consequence of selection mechanisms that are not severely limited, but have an adaptive function: They enhance perception in response to relevant information but suppress perception in response to irrelevant information. It means that humans are better geared for real life than was previously thought.  相似文献   

3.
《Behavior Therapy》2016,47(4):560-571
Theoretical models of social anxiety propose that attention biases maintain symptoms of social anxiety. Research findings regarding the time course of attention and social anxiety disorder have been mixed. Adult attachment style may influence attention bias and social anxiety, thus contributing to the mixed findings. This study investigated the time course of attention toward both negative and positive stimuli for individuals diagnosed with social anxiety disorder (SAD) and assessed whether attachment style moderates this relationship.One hundred and thirty participants (age: M = 29.03) were assessed using a semistructured clinical interview. Those meeting eligibility criteria for the clinical sample met DSM-IV criteria for SAD (n = 90, age: M = 32.18), while those in the control sample did not meet criteria for any mental disorder (n = 23, age: M = 26.04, 11 females). All participants completed self-report measures examining depression, social anxiety, adult attachment style, and completed an eye-tracking task used to measure the time course of attention. Eye-tracking data were analysed using growth curve analysis.The results indicate that participants in the control group overall displayed greater vigilance towards emotional stimuli, were faster at initially fixating on the emotional stimulus, and had a greater percentage of fixations towards the emotional stimulus as the stimulus presentation time progressed compared to those in the clinical group. Thus, the clinical participants were more likely to avoid fixating on emotional stimuli in general (both negative and positive) compared to those in the control group.These results support the Clark and Wells (1995) proposal that socially anxious individuals avoid attending to emotional information. Attachment style did not moderate this association, however anxious attachment was related to greater vigilance toward emotional compared to neutral stimuli.  相似文献   

4.
采用视觉呈现干扰词的图片一词干扰实验范式,探讨产生不同语法结构时言语产生汉语词类信息的加工进程.3个实验分别考察了以单字词、名词短语和简单陈述句命名图片时词类信息的加工,结果发现:三个实验中都存在不同词类干扰的不一致,名词干扰比非名词干扰更强烈;语义加工与语法特征加工存在重叠的时间窗,研究结果支持言语产生的交互激活理论.  相似文献   

5.
Combat exposure is linked to increased mental health problems among military personnel. Reliable, precise, and efficient measurement of combat experiences can facilitate understanding of the effects of combat on mental health. This study examined the psychometric properties of 2 scales used to assess deployment experiences in Canadian Armed Forces (CAF) personnel in 2 different settings: during a Third Location Decompression (TLD) program after deployment, and during routine postdeployment screening. Principal components analyses yielded similar results for the 2 measures. The components containing items relevant to Exposure to the Dead and Injured, Dangerous Environment, and Active Combat were common across both surveys. The TLD results revealed a fourth component, Personal Suffering, while the postdeployment screening data revealed a fourth component, Perceived Responsibility. This study found categories of deployment stressors that can be used for further analysis, and underscores the importance of assessing a broad range of exposures in the combat environment.  相似文献   

6.
7.
副中央凹文本对阅读有非常重要的作用,考察读者在注视何时起对其加工有助于解决阅读中词汇加工方式的理论问题,当前研究结果存在很大争论。本研究采用消失文本范式,操纵词n-1和n+1的呈现时间(0m/40ms),考察读者加工两侧副中央凹信息的时程。结果发现,相比0ms,在注视早期40ms内,词n+1的呈现能够显著促进阅读加工,而词n-1未对阅读产生影响,表明右侧副中央凹信息的加工发生在注视早期,而左侧则未发生在该早期阶段。结果支持阅读眼动控制的并列加工模型。  相似文献   

8.
The development of attention and executive functions in normal children (7–12 years) was investigated using a novel selective reaching task, which involved reaching as rapidly as possible towards a target, while at times having to ignore a distractor. The information processing paradigm allowed the measurement of various distinct dimensions of behaviour within a single task. The largest improvements in vigilance, set-shifting, response inhibition, selective attention, and impulsive responding were observed to occur between the ages of 8 and 10, with a plateau in performance between 10 and 12 years of age. These findings, consistent with a step-wise model of development, coincide with the observed developmental spurt in frontal brain functions between 7 and 10 years of age, and indicate that attention and executive functions develop in parallel. This task appears to be a useful research tool in the assessment of attention and executive functions, within a single task. Thus it may have a role in determining which cognitive functions are most affected in different childhood disorders.  相似文献   

9.
Performance anxiety has been studied in relation to golf performance, but one phenomenon that has received scant attention is social anxiety. One potential intervention that could reduce social anxiety in golfers is rational emotive behavior therapy (REBT), a cognitive-behavioral approach for which research interest is growing. The current study used an idiographic single-case study design to assess the effects of REBT on the social anxiety of 3 male amateur golfers. REBT was employed both on and off the golf course to ensure integration of REBT into the golfers’ performance, offering a methodological advancement of past research. Data were collected prior to, during, and after the REBT intervention. Visual analysis following single-case guidelines revealed substantial reductions in irrational beliefs and social anxiety in all three golfers. Social validation data indicated the positive receipt of REBT by the golfers and supported the visual analysis findings. This current study supports the effectiveness of REBT and extends the research by applying REBT in a “real-world” performance setting, offering methodological advances and providing clear implications for future research and practice.  相似文献   

10.
Motor-related brain potentials were used to examine the time course of grammatical and phonological processes during noun phrase production in Dutch. In the experiments, participants named colored pictures using a no-determiner noun phrase. On half of the trials a syntactic–phonological classification task had to be performed before naming. Depending on the outcome of the classifications, a left or a right push-button response was given (go trials), or no push-button response was given (no-go trials). Lateralized readiness potentials (LRPs) were derived to test whether syntactic and phonological information affected the motor system at separate moments in time. The results showed that when syntactic information determined the response-hand decision, an LRP developed on no-go trials. However, no such effect was observed when phonological information determined response hand. On the basis of the data, it can be estimated that an additional period of at least 40 ms is needed to retrieve a word's initial phoneme once its lemma has been retrieved. These results provide evidence for the view that during speaking, grammatical processing precedes phonological processing in time.  相似文献   

11.
法律运行道德追问的两重向度   总被引:4,自引:0,他引:4  
将法律运行的道德追问规定为两重向度 ,既有其学理的依据 ,又是历史给予的启示和破解现实难题的需要。对立法的道德追问不仅要考察法之形式正义和实质正义 ,而且要审视法与社会主导道德以及与广大民众心理和情感相契合的状况。对司法的道德追问则不仅要关注司法是否公正以及司法工作者是否具有良好的职业道德素质 ,而且应特别关注当下我国社会全面转型时期司法之“应然”。  相似文献   

12.
This article explored the use of digital storytelling as a method to support multicultural counseling competency. Thematic analysis examined the experiences of 9 students who created a digital story through an immersion activity in a multicultural counseling course. Qualitative data revealed 4 themes: (a) initial discomfort with technology, (b) initial reservations with group work, (c) digital storytelling as a learning tool, and (d) multicultural counseling competency. Recommendations for counselor education and future research are provided. Este artículo exploró el uso de la narrativa digital como método para apoyar la competencia en consejería multicultural. Un análisis temático examinó las experiencias de 9 estudiantes que crearon una historia digital mediante una actividad de inmersión en un curso de consejería multicultural. Los datos cualitativos revelaron 4 temas: (a) una carencia inicial de familiaridad con la tecnología, (b) reservas iniciales en cuanto al trabajo en equipo, (c) la narrativa digital como herramienta de aprendizaje y (d) la competencia en consejería multicultural. Se ofrecen recomendaciones para la educación de consejeros e investigaciones futuras.  相似文献   

13.
14.
和谐社会研究中要注意的两个问题   总被引:8,自引:0,他引:8  
构建和谐社会的理念甫一提出,便得到社会各阶层的广泛认同,也正成为理论界研究的一个热点问题。和谐的思想可谓源远流长,中外思想史上都有大量论述,对于我们具有相当的启发意义,但也一定要注意,我们今天说的和谐与古人所说的和谐有着很大的不同。综观中外思想史和当今的文献,虽然不少人从不同方面谈到和谐,但从总体的致思路向上讲,还是有着很大不同。概而言之,一种是形而上学的消极和谐观,一种是辩证法的积极和谐观。注意区分这两种和谐观的差别,注意讨论社会和谐时的浪漫主义倾向,这在理论和实践中都有重要意义。一可以从如下几个方面来看…  相似文献   

15.
Mindfulness meditation yields beneficial effects on the processing of emotions. However, it is still unclear whether the focus of attention during meditation influences these effects. In the present study we aimed at comparing the effects of breathing meditation and emotion-focused meditation on the immediate and delayed processing of negative and positive emotions. The study included 65 adult novice meditators who were exposed to positively and negatively valenced film clips. Participants were randomly assigned to three conditions. While watching the films at t1, they were asked to mindfully focus on their breath (condition 1), on emotions (condition 2), or on nothing in particular (condition 3). Ten minutes later at t2, comparable film clips were shown but all participants watched them without taking up a mindful attitude. Dependent measures were emotional states at t1 and t2. Participants of both meditation conditions particularly showed a more preferable delayed emotional reaction to negative stimuli than participants of the control condition. Breathing meditation and emotion-focused meditation may constitute effective emotion regulation strategies to deal with negatively valenced emotional states.  相似文献   

16.
我国高血压患者人数已高达1.6亿。高血压的严重后果是心脑血管血栓性事件(心绞痛、心肌梗死、脑梗死等)发生率的显著增高。大量的证据显示,每天100mg阿司匹林可以有效预防血栓性事件,使心肌梗死的发生率下降1/3,脑梗死发生率下降1/4,心血管疾病病死率下降1/6,国内外指南均明确规定有适应证的高血压患者需终身服用阿可匹林。本文就长期应用阿司匹林应注意的问题做一综述。  相似文献   

17.
Data from the National Institute of Child Health and Human Development Study of Early Child Care were examined to test whether: attention deficit/hyperactivity disorder (ADHD) symptoms remain stable from 54 months through early elementary school; behavioral inhibition and attention deficits assessed at 54 months predict ADHD symptoms in elementary school, even after controlling for their temporal stability; and early behavioral inhibition and attention deficits moderate the longitudinal stability in ADHD symptoms. Data were examined using continuous and categorical measures of symptoms. Modest stability in ADHD symptoms from 54 months to third grade was found. Measures of inhibition and inattention predicted later teacher ratings uniquely, but no evidence was found for moderation. Measures of preschool behavioral inhibition also predicted “persistently at risk status” defined by elevated teacher ratings over time. Results are discussed in terms of executive and motivational facets of inhibition that may be related to early signs of ADHD.  相似文献   

18.
The course of the representation built in memory from a text during comprehension of paragraphs was studied by a probe technique (immediate item recognition). Three experiments showed that response times, the main variable, gradually increase as a function of the lag between the probe (a word or an atomic proposition) and its target in the text. In Experiment 3 the same result was also found with a priming technique. The absence of any kick-up over the course of time was confirmed by several additional analyses of individual data. The results were only weakly consistent with models assuming two distinct memory stores, in particular a specific “short-term memory store,” but highly consistent with models involving semantic activation and subsequent gradual deactivation.  相似文献   

19.
This paper presents a model describing the temporal and neurotopological structure of syntactic processes during comprehension. It postulates three distinct phases of language comprehension, two of which are primarily syntactic in nature. During the first phase the parser assigns the initial syntactic structure on the basis of word category information. These early structural processes are assumed to be subserved by the anterior parts of the left hemisphere, as event-related brain potentials show this area to be maximally activated when phrase structure violations are processed and as circumscribed lesions in this area lead to an impairment of the on-line structural assignment. During the second phase lexical-semantic and verb-argument structure information is processed. This phase is neurophysiologically manifest in a negative component in the event-related brain potential around 400 ms after stimulus onset which is distributed over the left and right temporo-parietal areas when lexical-semantic information is processed and over left anterior areas when verb-argument structure information is processed. During the third phase the parser tries to map the initial syntactic structure onto the available lexical-semantic and verb-argument structure information. In case of an unsuccessful match between the two types of information reanalyses may become necessary. These processes of structural reanalysis are correlated with a centroparietally distributed late positive component in the event-related brain potential. The different temporal and topographical patterns of the event-related brain potential. as well as some aspects of aphasics′ comprehension behavior are taken to support the view that these different processing phases are distinct and that the left anterior cortex, in particular, is responsible for the on-line assignment of syntactic structure.  相似文献   

20.
The orienting of attention in space has not been considered in the tactile domain. This issue is examined using a modified version of a visual paradigm initially adopted by Posner, Snyder, and Davidson (1980), which manipulates the probability of a stimulus occurring at different spatial locations. Slower RTs at an unexpected stimulus location are thought to reflect the time required to shift attention from the expected to the unexpected location. In two experiments involving vibrotactile choice RT between left and right hands, the two hands were either crossed or uncrossed, and the hands were held both on the left side of the body, both on the right, or one on either side of the midline. There was no evidence to suggest that spatial location (left or right) affected the orienting of attention in the tactual modality. As predicted, RTs were slower when the arms were crossed compared with uncrossed, though this effect was smaller for the expected trials. A coding conflict hypothesis may explain both these findings, but the smaller effect in the expected trials may also reflect attentional factors. Both the relative and absolute location of the hands affected the magnitude of the crossed-arm effect and indicated that attention may play a role in the perceptual division of space into left and right sides. Possible reasons for hand or hemispace asymmetries in different simple and choice RT paradigms were discussed.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号