首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1176篇
  免费   48篇
  国内免费   29篇
  2024年   1篇
  2023年   13篇
  2022年   9篇
  2021年   32篇
  2020年   34篇
  2019年   35篇
  2018年   33篇
  2017年   62篇
  2016年   61篇
  2015年   38篇
  2014年   59篇
  2013年   320篇
  2012年   23篇
  2011年   83篇
  2010年   51篇
  2009年   69篇
  2008年   70篇
  2007年   50篇
  2006年   31篇
  2005年   27篇
  2004年   28篇
  2003年   26篇
  2002年   25篇
  2001年   11篇
  2000年   15篇
  1999年   7篇
  1998年   13篇
  1997年   8篇
  1996年   3篇
  1995年   3篇
  1994年   6篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
排序方式: 共有1253条查询结果,搜索用时 15 毫秒
41.
Many young adult drivers read and send text messages while driving despite clear safety risks. Understanding predictors of texting-while-driving may help to indentify relevant targets for interventions to reduce this dangerous behavior. The present study examined whether individual differences in mindfulness are associated with texting-while-driving in a sample of young-adult drivers. Using path analysis, we tested whether this relationship would be mediated by the degree to which individuals use text-messaging as a means of reducing unpleasant emotions (emotion-regulation motives) and the degree to which individuals limit texting in order to focus on present-moment experiences (attention-regulation motives). Individuals lower in mindfulness reported more frequent texting-while-driving and this relationship appeared to be mediated primarily by emotion-regulation motives. Results may help inform the development of mindfulness-based interventions to prevent texting-while-driving.  相似文献   
42.

Objective

The goal of the present study was to examine distributed attentional functions in long-term but currently abstinent methamphetamine (MA) abusers using a task that measures attentional alertness, orienting, and conflict resolution.

Methods

Thirty currently abstinent MA abusers (1 month-5 years) and 22 healthy non-substance using adults were administered a multimodal version of the Attentional Network Task (ANT-I). In this task subjects identified the direction of a centrally presented arrow using a key press. Analyses examined the interaction between alerting tones, location cueing and congruency between the target arrows and flanking distractor stimuli.

Results

All participants were faster when an auditory tone preceded the trial onset (p < 0.001), on trials in which a valid cue preceded the location of the target arrow (p < 0.001), and on congruent trials (i.e., when all display arrows faced in the same direction) (p < 0.001). Of primary interest was the finding that MA abusers were more influenced by the conflict between the peripheral arrows and the central target arrow (p = 0.009). There were also correlations between length of drug sobriety and executive function as well as between drug-induced psychiatric symptoms and alertness.

Conclusions

These results suggest that chronic MA abusers display cognitive deficits that may reflect a specific vulnerability to distraction on a task of executive function. These findings are consistent with other studies that have reported deficits in anterior attentional systems and top-down cognitive control.  相似文献   
43.
There is currently no consensus regarding what measures are most valid to demonstrate perceptual processing without awareness. Likewise, whether conscious perception and unconscious processing rely on independent mechanisms or lie on a continuum remains a matter of debate. Here, we addressed these issues by comparing the time courses of subjective reports, objective discrimination performance and response priming during meta-contrast masking, under similar attentional demands. We found these to be strikingly similar, suggesting that conscious perception and unconscious processing cannot be dissociated by their time course. Our results also demonstrate that unconscious processing, indexed by response priming, occurs, and that objective discrimination performance indexes the same conscious processes as subjective visibility reports. Finally, our results underscore the role of attention by showing that how much attention the stimulus receives relative to the mask, rather than whether processing is measured by conscious discrimination or by priming, determines the time course of meta-contrast masking.  相似文献   
44.
Attention operates in the space near the hands with unique, action-related priorities. Here, we examined how attention treats objects on the hands themselves. We tested two hypotheses. First, attention may treat stimuli on the hands like stimuli near the hands, as though the surface of the hands were the proximal case of near-hand space. Alternatively, we proposed that the surface of the hands may be attentionally distinct from the surrounding space. Specifically, we predicted that attention should be slow to orient toward the hands in order to remain entrained to near-hand space, where the targets of actions are usually located. In four experiments, we observed delayed orienting of attention on the hands compared to orienting attention near or far from the hands. Similar delayed orienting was also found for tools connected to the body compared to tools disconnected from the body. These results support our second hypothesis: attention operates differently on the functional surfaces of the hand. We suggest this effect serves a functional role in the execution of manual actions.  相似文献   
45.
This study investigates the impact of socioecological synchronization on the level and variations in children's attention at school. The aim was to re-examine previous results and broaden the chronopsychological scope of the research to include new synchronizers originating from proximal ecological niches. Two time-management factors were considered, the organization of the school timetable and the regular and predictable daily time with parents, influenced by work organization and compromises within the family. Two studies were conducted on a total of 498 children between six and 11 years of age. Results confirm a daily attention pattern. The level of performance and the daily pattern are affected by the two time-management factors whose beneficial or adverse influence depends on the child's age. Thus, while the weekly school timetable organized over four days has the strongest negative impact on attention performance for the two age groups, desynchronization due to a longer week-end is greater in the older children. The effects of the two possible four-and-a-half-day timetables also differ according to age. The benefits of working on Wednesdays for younger children appeared less beneficial for the older pupils. Regular and predictable daily time with parents does appear to play a role which also varies according to age, as it has an effect on younger children but has no impact on older children's attention or performance. This study confirms the synchronizing role of temporal messages from school and parental niches in the level and variations in children's attention at school, and is in line with the ecological point of view demonstrated by chronobiological studies. These findings support the importance of research that takes an overall approach to the child's environment. Further work should investigate the prioritization of social synchronizers according to their proximity to the child and how they interact.  相似文献   
46.
Convergent research points to the importance of studying the ontogenesis of sustained attention during the early years of life, but little research hitherto has compared and contrasted different techniques available for measuring sustained attention. Here, we compare methods that have been used to assess one parameter of sustained attention, namely infants’ peak look duration to novel stimuli. Our focus was to assess whether individual differences in peak look duration are stable across different measurement techniques. In a single cohort of 42 typically developing 11-month-old infants we assessed peak look duration using six different measurement paradigms (four screen-based, two naturalistic). Zero-order correlations suggested that individual differences in peak look duration were stable across all four screen-based paradigms, but no correlations were found between peak look durations observed on the screen-based and the naturalistic paradigms. A factor analysis conducted on the dependent variable of peak look duration identified two factors. All four screen-based tasks loaded onto the first factor, but the two naturalistic tasks did not relate, and mapped onto a different factor. Our results question how individual differences observed on screen-based tasks manifest in more ecologically valid contexts.  相似文献   
47.
The objective of this correlational study was to investigate how dispositional mindfulness is related to the experience of time as operationalized by the assessment of the time perspectives, impulsiveness, and duration judgment tasks. A sample of students (N = 63) completed self-report measures of mindfulness (FMI, CHIME), the time perspectives (ZTPI), impulsiveness (BIS), conducted psychophysical tasks of (a) auditory duration discrimination in the milliseconds range, (b) visual duration reproduction in the multiple-second range, and performed an attention task, the Attention Network Test. Being more mindful in daily life was related to less impulsiveness, better emotional handling of the past, and a more pronounced future perspective. Mindfulness was also related to more accurate timing in the milliseconds and multiple-seconds range but not to attentional control. These findings suggest a close association between dispositional mindfulness with the temporal organization of behaviour and the perception of time.  相似文献   
48.
The present study examined the contribution of early reactivity and regulation on externalizing behavior in preadolescence. Moreover, subcomponents of attentional control (i.e., attention shifting and attention focusing) and negative reactivity (i.e., sadness and anger) were examined individually to test whether a specific combination of factors uniquely contributed to the outcome. A subset of data were utilized from the ongoing, longitudinal RIGHT Track project (N = 404), in which parents reported on individual factors at age 4 and teachers reported on externalizing behavior at age 10. A hierarchical linear regression analysis revealed a significant interaction between anger reactivity and attention shifting when controlling for early externalizing behavior, where children with high levels of anger and low levels of attention shifting experienced the greatest increase in externalizing behavior over time. An increased focus on specificity is needed in research on the interplay between reactivity and regulation in the prediction of externalizing behavior.  相似文献   
49.
张丽  蒋慧  赵立 《心理科学》2018,(2):337-343
本研究拟考察发展性计算障碍儿童的认知缺陷成因。实验1要求被试在三种形式(点/点,数/数,点/数)下进行数量比较,实验2仅将点集替换为汉字数字词。结果表明障碍组和正常组在数/数、点/数和汉字/汉字比较任务上的成绩存在显著差异,而在点/点和汉字/汉字比较上没有差异。据此推论,计算障碍儿童符号加工能力受到损伤,符号与非符号数量转换能力存在缺陷,但非符号加工能力和不同符号间数量转换没有缺陷,支持语义提取缺陷假设。  相似文献   
50.
There have been few previous attempts to assess the development of early markers of executive function in infants born preterm despite well-established deficits reported for older preterm children that have been closely linked to poorer academic functioning. The present study investigates early attention control development in healthy 12-month-old age-corrected pre-term infants who were born less than 30 weeks and compares their performance to full-term infants. Eye-tracking methodology was used to measure attention control. Preterm Infants spent less time focused on the target and were slower to fixate attention, with lower gestational age associated with poorer target fixation and slower processing speed. There were no significant group differences observed for inhibition of return or interference control. These findings suggest that specific emerging deficits in attention control may be observed using eye tracking methodology in very preterm infants at this early stage of development, despite scores within the average range on the Bayley Scales of Infant Development.  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