全文获取类型
| 收费全文 | 1157篇 |
| 免费 | 183篇 |
| 国内免费 | 51篇 |
专业分类
| 1391篇 |
出版年
| 2025年 | 4篇 |
| 2024年 | 18篇 |
| 2023年 | 18篇 |
| 2022年 | 34篇 |
| 2021年 | 39篇 |
| 2020年 | 69篇 |
| 2019年 | 73篇 |
| 2018年 | 68篇 |
| 2017年 | 77篇 |
| 2016年 | 85篇 |
| 2015年 | 37篇 |
| 2014年 | 64篇 |
| 2013年 | 227篇 |
| 2012年 | 57篇 |
| 2011年 | 63篇 |
| 2010年 | 33篇 |
| 2009年 | 43篇 |
| 2008年 | 52篇 |
| 2007年 | 53篇 |
| 2006年 | 31篇 |
| 2005年 | 40篇 |
| 2004年 | 37篇 |
| 2003年 | 26篇 |
| 2002年 | 34篇 |
| 2001年 | 19篇 |
| 2000年 | 10篇 |
| 1999年 | 6篇 |
| 1998年 | 12篇 |
| 1997年 | 10篇 |
| 1996年 | 6篇 |
| 1995年 | 3篇 |
| 1994年 | 6篇 |
| 1993年 | 6篇 |
| 1992年 | 3篇 |
| 1991年 | 1篇 |
| 1990年 | 4篇 |
| 1989年 | 2篇 |
| 1988年 | 2篇 |
| 1987年 | 2篇 |
| 1986年 | 4篇 |
| 1984年 | 1篇 |
| 1982年 | 1篇 |
| 1981年 | 3篇 |
| 1980年 | 1篇 |
| 1978年 | 5篇 |
| 1977年 | 1篇 |
| 1976年 | 1篇 |
排序方式： 共有1391条查询结果，搜索用时 15 毫秒
951.
If a response is executed in reaction to a target stimulus, accompanying distractor stimuli can be integrated with and later on retrieve this response, an effect called distractor-response binding. There has been some debate as to whether S-R binding is generally influenced by attentional processes and in particular the role of attentional processes for the binding of irrelevant stimuli and responses is unclear. We therefore analyze the impact of spatial input attention while engaging central attention in an additional task. In particular, participants worked in dual task situations that induced load on central attention while the distribution of spatial attention was manipulated by varying the location of the different tasks. Distractor-response binding occurred only if both tasks were presented in the same spatial location. In contrast, binding effects within one task were prevented if spatial attention was withdrawn from the task by presenting a second task in a separate area. It is concluded that input but no central attention is required for the integration of distractor stimuli and responses. Theoretical and practical implications of these findings are discussed. 相似文献
952.
There is ample evidence that in classical truth table task experiments false antecedents are judged as “irrelevant”. Instead of interpreting this in support of a suppositional representation of conditionals, Schroyens (2010a, 2010b) attributes it to the induction problem: the impossibility of establishing the truth of a universal claim on the basis of a single case. In the first experiment a truth table task with four options is administered and the correlation with intelligence is inspected. It is observed that “undetermined” is chosen in one third of the judgements and “irrelevant” in another third. A positive correlation is revealed between intelligence and the number of “irrelevant” and “undetermined” judgements. The data do not exclude that a part of the “irrelevant” judgements in classical truth table task experiments might be caused by the induction problem. In the second experiment participants are presented with a simplified four-option truth table task and asked for a justification of their judgements. These justifications show the induction problem is not the reason for choosing the “irrelevant” or “undetermined” option, which is supportive for a suppositional representation of conditionals. 相似文献
953.
The authors investigated whether college students possess abstract rules concerning the applicability conditions for three spatial diagrams that are important tools for thinking—matrices, networks, and hierarchies. A total of 127 students were asked to select which type of diagram would be best for organising the information in each of several short scenarios. The scenarios were written using three different story contexts: (a) neutral, presenting a real-life situation but not cueing a particular representation; (b) abstract, presenting only variable names and relations; and (c) incongruent, in which the context and informational structure cued different representations. The results indicated above-chance performance on the abstract scenarios, as well as comparable performance on the abstract and neutral context scenarios. In a follow-up study in which eight students thought out loud while selecting diagrams for the abstract scenarios, there were almost no references to concrete examples. The results of these studies suggest that students possess abstract rules concerning the applicability conditions for matrices, networks, and hierarchies. 相似文献
954.
Clément Vidal 《Metaphilosophy》2012,43(3):306-347
Philosophy lacks criteria to evaluate its philosophical theories. To fill this gap, this essay introduces nine criteria to compare worldviews, classified in three broad categories: objective criteria (objective consistency, scientificity, scope), subjective criteria (subjective consistency, personal utility, emotionality), and intersubjective criteria (intersubjective consistency, collective utility, narrativity). The essay first defines what a worldview is and exposes the heuristic used in the quest for criteria. After describing each criterion individually, it shows what happens when each of them is violated. From the criteria, it derives assessment tests to compare and improve different worldviews. These include the is‐ought, ought‐act, and is‐act first‐order tests; the critical and dialectical second‐order tests; the mixed‐questions and first‐second‐order third‐order tests; and the we‐I, we‐it, and it‐I tests. The essay then applies these criteria and tests to a concrete example, comparing the Flying Spaghetti Monster deity with Intelligent Design. For another application, it draws more general fruitful suggestions for the dialogue between science and religion. 相似文献
955.
Jane E. Higham Myrna L. Friedlander Valentín Escudero Gary Diamond 《Journal of Family Therapy》2012,34(1):24-52
Informed by a trans‐theoretical model of the therapeutic alliance in conjoint family therapy, this exploratory study was the initial stage in a task analysis of critical shifts in adolescent engagement. Specifically, we compared sessions in which a resistant adolescent either did or did not shift from negative to positive engagement during the session. Two successful and two unsuccessful change events were selected from an archival data set based on SOFTA ratings of the therapeutic alliance. The results suggested that one parent element (support) and five therapist elements (structuring therapeutic conversations, fostering autonomy, building systemic awareness, rolling with resistance and understanding the adolescent's subjective experience) seemed critical for successfully facilitating adolescent engagement. The qualitative results were informed by the adolescent's self‐reported target complaints pretreatment, which suggested varying reasons for the teenagers’ active or passive disengagement. Implications for practice and recommendations for future research are offered to continue this line of inquiry. 相似文献
956.
Natalia Jaworska Lindsay Berrigan Derek Fisher Adekunle G. Ahmed Jonathan Gray John Bradford Athanassia Korovessis Paul Fedoroff Verner Knott 《Aggressive behavior》2012,38(6):469-480
Dysfunctional anger, though not a primary clinical diagnosis per se, does present clinically as a pathological mood for which treatment is sought. Few studies have probed the neurocortical correlates of dysfunctional anger or assessed if cognitive processes, such as attention, are altered in dysfunctional anger. Though dysfunctional and high trait anger appears to be associated with biased processing of anger‐eliciting information, few studies have examined if dysfunctional anger modulates attention more generally. This is a notable gap as volitional attention control is associated with effective emotive regulation, which is impaired in dysfunctional anger and in associated acts of aggression. In this pilot study, we examined performance and electroencephalographic (EEG) profiles during a 12‐min continuous performance task (CPT) of sustained attention in 15 adults with dysfunctional anger (Anger group) and 14 controls (control group). The Anger group had fewer hits at the end of the CPT, which correlated with decreased frontocortical activation, suggesting decreased engagement of frontal circuits when attention is taxed. The Anger group had more false alarms overall indicating impaired response inhibition. Increased right cortical activation during the initial portion of CPT existed in the Anger group, perhaps reflecting greater engagement of frontal circuits (i.e. effort) during initial stages of the task compared to controls. Finally, increased overall beta1 power, suggesting increased cortical activation, was noted in the Anger group. These EEG patterns suggest a hypervigilant state in dysfunctional anger, which may interfere with effective attention control and decrease inhibition. Such impairments likely extend beyond the laboratory setting, and may associate with aggressive acts in real life. Aggr. Behav. 38:469‐480, 2012. © 2012 Wiley Periodicals, Inc. 相似文献
957.
Stüttgen MC Yildiz A Güntürkün O 《Journal of the experimental analysis of behavior》2011,96(2):155-176
Pigeons responded in a perceptual categorization task with six different stimuli (shades of gray), three of which were to be classified as \"light\" or \"dark\", respectively. Reinforcement probability for correct responses was varied from 0.2 to 0.6 across blocks of sessions and was unequal for correct light and dark responses. Introduction of a new reinforcement contingency resulted in a biphasic process of adjustment: First, choices were strongly biased towards the favored alternative, which was followed by a shift of preference back towards unbiased choice allocation. The data are well described by a signal detection model in which adjustment to a change in reinforcement contingency is modeled as the change of a criterion along a decision axis with fixed stimulus distributions. Moreover, the model shows that pigeons, after an initial overadjustment, distribute their responses almost optimally, although the overall benefit from doing so is extremely small. The strong and swift effect of minute changes in overall reinforcement probability precludes a choice strategy directly maximizing expected value, contrary to the assumption of signal detection theory. Instead, the rapid adjustments observed can be explained by a model in which reinforcement probabilities for each action, contingent on perceived stimulus intensity, determine choice allocation. 相似文献
958.
RUI NOUCHI 《The Japanese psychological research》2011,53(3):319-326
This study investigated whether or not visual imagery ability affected the benefit of a survival judgment task. Based on the median split of their VVIQ score, 92 undergraduate students were classified as either high imagers (n = 46) or low imagers (n = 46). In the survival task, participants were requested to judge whether an item presented in the form of two Chinese characters was necessary or not in a survival situation. In the image judgment task, participants were requested to judge whether an item presented in the form of two Chinese characters arouses mental images or not. Participants were presented 18 concrete nouns at 4 s intervals in each condition. In both the survival judgment and the image judgment tasks, high imagers recalled more words than low imagers did. This result showed that imagery ability influenced the benefit of the survival judgment task. These results were discussed from the functional perspective of memory. Finally, we proposed the combination hypothesis, which combined elaboration and functional perspectives to explain the benefit of the survival judgment task. 相似文献
959.
Although the rapid development of information technology has led to the increasing use of computer‐mediated communication (CMC), few studies have examined the relational aspect of mixed‐mode groups that use both face‐to‐face (FTF) communication and CMC. A field study comprising 42 student groups was conducted to assess the relationships among communication time, cohesion, and performance in mixed‐mode groups. The findings suggest that time spent in FTF communication significantly predicted group social cohesion, but time spent in CMC did not. In contrast, group task cohesion was predicted by time spent in CMC but not by time spent in FTF communication. Time spent in CMC was also a strong predictor of group task performance. These results suggest that FTF communication contributes to the social aspect of mixed‐mode groups and that CMC is beneficial to their task‐related aspect. The findings of mediation analyses showed a significant indirect effect among time spent in FTF communication, group social cohesion, and group contextual performance. In other words, time spent in FTF communication had a positive effect on group social cohesion, which in turn positively affected group contextual performance. However, no mediating effect was found among time spent in CMC, group task cohesion, and group task performance. Theoretical and practical implications of these findings are discussed. 相似文献
960.
Infants' abilities to identify objects based on their perceptual features develop gradually during the first year and possibly beyond. Earlier we reported [Káldy, Z., & Leslie, A. M. (2003). Identification of objects in 9-month-old infants: Integrating 'what' and 'where' information. Developmental Science, 6, 360-373] that infants at 9 months of age are able to use shape information to identify two objects and follow their spatiotemporal trajectories behind occlusion. On the other hand, another recent study suggests that infants at 4-5 months of age cannot identify objects by features and bind them to locations [Mareschal, D., & Johnson, M. H. (2003). The "what" and "where" of object representations in infancy. Cognition, 88, 259-276]. In the current study, we investigated the developmental steps between these two benchmark ages by testing 6.5-month-old infants. Experiment 1 and 2 adapted the paradigm used in our previous studies with 9-month-olds that involves two objects hidden sequentially behind separate occluders. This technique allows us to address object identification and to examine whether only one or both object identities are being tracked. Results of experiment 1 showed that 6.5-month-old infants could identify at least one of two objects based on shape and experiment 2 found that this ability holds for only one, the last object hidden. We propose that at this age, infants' working memory capacity is limited to one occluded object if there is a second intervening hiding. If their attention is distracted by an intervening object during the memory maintenance period, the memory of the first object identity appears to be lost. Results of experiment 3 supported this hypothesis with a simpler one-screen setup. Finally, results of experiment 4 show that temporal decay of the memory trace (without an intervening hiding) by itself cannot explain the observed pattern of results. Taken together, our findings suggest that at six months of age infants can store but a single object representation with bound shape information, most likely in the ventral stream. The memory span of one may be due to immaturity of the neural structures underlying working memory such that intervening items overwrite the existing storage. 相似文献