全文获取类型
收费全文 | 2271篇 |
免费 | 119篇 |
国内免费 | 3篇 |
出版年
2023年 | 15篇 |
2022年 | 22篇 |
2021年 | 38篇 |
2020年 | 38篇 |
2019年 | 50篇 |
2018年 | 72篇 |
2017年 | 75篇 |
2016年 | 92篇 |
2015年 | 54篇 |
2014年 | 68篇 |
2013年 | 288篇 |
2012年 | 126篇 |
2011年 | 114篇 |
2010年 | 96篇 |
2009年 | 79篇 |
2008年 | 108篇 |
2007年 | 99篇 |
2006年 | 93篇 |
2005年 | 83篇 |
2004年 | 74篇 |
2003年 | 77篇 |
2002年 | 67篇 |
2001年 | 42篇 |
2000年 | 39篇 |
1999年 | 38篇 |
1998年 | 22篇 |
1997年 | 16篇 |
1996年 | 32篇 |
1995年 | 20篇 |
1994年 | 15篇 |
1993年 | 13篇 |
1992年 | 27篇 |
1991年 | 20篇 |
1990年 | 16篇 |
1989年 | 12篇 |
1988年 | 22篇 |
1987年 | 17篇 |
1986年 | 16篇 |
1985年 | 12篇 |
1984年 | 23篇 |
1982年 | 9篇 |
1981年 | 10篇 |
1980年 | 11篇 |
1978年 | 9篇 |
1975年 | 7篇 |
1973年 | 8篇 |
1972年 | 13篇 |
1971年 | 7篇 |
1969年 | 10篇 |
1968年 | 10篇 |
排序方式: 共有2393条查询结果,搜索用时 15 毫秒
841.
This experiment examined how parents' verbal and non-verbal behavioral cues cause infants to shift and share attention within environments where many objects compete for infants' attention. Fifteen- and 21-month-old infants played with toys while their parent periodically shifted attention to a distal object within a larger array. Parents' attention-shifts were indicated by a change in direction of gaze, a pointing gesture, and/or verbalizations. Verbalizations were either attention-eliciting or attention-directing. In some trials parents covered their eyes to occlude line-of-gaze. Both ages seldom followed simple gaze shifts, but frequently followed gaze with-points or gaze-with-directing verbalizations. Attention-eliciting verbalizations increased infants' looks to the parent. Gaze occlusion reduced infants' responses to directing verbalizations. Responses to eliciting verbalizations increased with age. Infant receptive vocabulary did not predict attention-sharing, even when parents named objects (i.e., directing verbalizations). Implications for development of attention-sharing, language and understanding of visual attention are discussed. 相似文献
842.
Lilian Doeven-Eggens Filip De Fruyt A.A. Jolijn Hendriks Roel J. Bosker Margaretha P.C. Van der Werf 《Personality and individual differences》2008,45(7):689-693
The association between personality and personal relationships is mostly studied within dyadic relationships. We examined these variables within the context of personal network types. We used Latent Class Analysis to identify groups of students with similar role relationships with three focal figures. We performed Latent Class Logistic Regression to explore the relationships of the latent classes with the Big Five personality factors. Personality was assessed with the Five Factor Personality Inventory. We found three personal network types: a primarily family oriented network, a primarily peer oriented network, and a mixed family/peer oriented network. We found significant associations between personality and personal network type. Extraverted students were more likely to have a primarily peer oriented network relative to a primarily family oriented network. Autonomous students were more likely to have a primarily family oriented network relative to a primarily peer oriented network. Autonomous students were also more likely to have a mixed family/peer oriented network relative to a primarily peer oriented network. Conscientious students were more likely to have a primarily family oriented network relative to a mixed family/peer oriented network. 相似文献
843.
Gender differences in memory for objects and their locations: a study on automatic versus controlled encoding and retrieval contexts 总被引:1,自引:0,他引:1
Object-location memory is the only spatial task where female subjects have been shown to outperform males. This result is not consistent across all studies, and may be due to the combination of the multi-component structure of object location memory with the conditions under which different studies were done. Possible gender differences in object location memory and its component object identity memory were assessed in the present study. In order to disentangle these two components, an object location memory task (in which objects had to be relocated in daily environments), and a separate object identity recognition task were carried out. This study also focused on the conditions under which object locations were encoded and retrieved. Only half of the participants were aware of the fact that object locations had to be retrieved later on. Moreover, by applying the 'process dissociation procedure' to the object location memory assessments and the 'remember-know' paradigm to the object identity measure, the amount of explicit (conscious) and implicit (unconscious) retrieval was estimated for each component. In general, females performed better than males on the object location memory task. However, when controlled for object identity memory, females no longer outperformed males, whereas they did not obtain a higher general object identity memory score, nor did they have more explicit or implicit recollection of the object identities. These complicated effects might stem from a difference between males and females, in the way locations or associations between objects and locations are retrieved. In general, participants had more explicit (conscious) recollection than implicit (unconscious) recollection. No effect of encoding context was found, nor any interaction effect of gender, encoding and retrieval context. 相似文献
844.
Although Attneave (1954 Psychological Review 61 183 193) and Biederman (1987 Psychological Review 94 115-147) have argued that curved contour segments are most important in shape perception, Kennedy and Domander (1985 Perception 14 367-370) showed that fragmented object contours are better identifiable when straight segments are shown. We used the set of line drawings published by Snodgrass and Vanderwart (1980 Journal of Experimental Psychology: Human Learning and Memory 6 174-215), to make outline versions that could be used to investigate this issue with a larger and more heterogeneous stimulus set. Fragments were placed either around the 'salient' points or around the midpoints (points midway between two salient points), creating curved versus relatively straight fragments when the original outline was fragmented (experiment 1), or angular and straight fragments when straight-line versions were fragmented (experiment 2). We manipulated fragment length in each experiment except the last one, in which we presented only selected points (experiment 3). While fragmented versions were on average more identifiable when straight fragments were shown, certain objects were more identifiable when the curved segments or the angles were shown. A tentative explanation of these results is presented in terms of an advantage for straight segments during grouping processes for outlines with high part salience, and an advantage for curved segments during matching processes for outlines with low part salience. 相似文献
845.
Attneave (1954 Psychological Review 61 183-193) demonstrated that a line drawing of a sleeping cat can still be identified when the smoothly curved contours are replaced by straight-line segments connecting the positive maxima and negative minima of contour curvature. Using the set of line drawings by Snodgrass and Vanderwart (1980 Journal of Experimental Psychology: Human Learning and Memory 6 174-215) we made outline versions (with known curvature values along the contour) that can still be identified and that can be used to test Attneave's demonstration more systematically and more thoroughly. In five experiments (with 444 subjects in total), we tested identifiability of straight-line versions of 184 stimuli with different selections of points to be connected (using 24 to 28 subjects per stimulus per condition). Straight-line versions connecting curvature extrema were easier to identify than those based on inflections (where curvature changes sign), and those connecting salient points (determined by 161 independent subjects) were easier than those connecting midpoints. However, identification varied considerably between objects: some were almost always identifiable and others almost never, regardless of the selection criterion, whereas identifiability depended on the specific shape attributes preserved in the straight-line version of the outline in other objects. Results are discussed in relation to Attneave's original hypotheses as well as in the light of more recent theories on shape perception and object identification. 相似文献
846.
Maarten J. J. Wubben David De Cremer Eric van Dijk 《European journal of social psychology》2008,38(5):823-835
The present research examines whether the emotional display (i.e. anger vs. guilt) of another group member affects people's decision‐making in a public good dilemma. In two experiments we investigated whether the expressed emotion is particularly informative when communicated by a group member who is highly instrumental in reaching the provision point. A first experiment demonstrated that participants were more likely to exit the group when anger as opposed to guilt was communicated, but especially when the group member displaying the emotion was able to contribute many endowments to the public good. Expected justice (based on past inferences) in the group mediated this effect, suggesting that communicated anger signals more than guilt that the group will not set out to achieve fairness. In agreement with this, a second experiment showed that when it was not possible to exit the group, participants preferred to install a democratic leader more when a wealthy group member communicated anger as opposed to guilt. Additionally, this study provided experimental evidence that a communicated emotion is only used for subsequent decision‐making when more explicit information (i.e. a promise to contribute) is absent. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
847.
The study reported here compares two linguistically informed hypotheses on agrammatic sentence production, the TPH [Friedmann, N., & Grodzinsky, Y. (1997). Tense and agreement in agrammatic production: Pruning the syntactic tree. Brain and Language, 56, 397-425.] and the DOP [Bastiaanse, R., & van Zonneveld, R. (2005). Sentence production with verbs of alternating transitivity in agrammatic Broca's aphasia. Journal of Neurolinguistics, 18, 59-66]. To explain impaired production of non-canonical sentences in agrammatism, the TPH basically relies on deleted or pruned clause structure positions in the left periphery, whereas the DOP appeals to limitations in the application of movement rules. Certain non-canonical sentences such as object-questions and object-relative clauses require the availability of nodes in the left periphery as well as movement to these nodes. In languages with relatively fixed word order such as English, the relevant test cases generally involve a coincidence of left periphery and movement, such that the predictions of the TPH and the DOP are identical although for different reasons. In languages with relatively free word order such as German, on the other hand, it is possible to devise specific tests of the different predictions due to the availability of scrambling. Scrambled object sentences, for example, do not involve the left periphery but do require application of movement in a domain below the left periphery. A study was conducted with German agrammatic subjects which elicited canonical sentences without object movement and non-canonical scrambled sentences with object movement. The results show that agrammatic speakers have a particular problem with the production of scrambled sentences. Further evidence reported in the study from spontaneous speech, elicitation of object relatives, questions and passives and with different agrammatic subjects confirms that non-canonical sentences are generally harder to produce for agrammatics. These findings provide evidence in favor of the DOP and it will be argued that a cross-modal explanation of agrammatic deficits is possible if two factors--movement and canonicity--are taken into consideration. 相似文献
848.
This study presents survey data on 58 Dutch-speaking patients with neurogenic stuttering following various neurological injuries. Stroke was the most prevalent cause of stuttering in our patients, followed by traumatic brain injury, neurodegenerative diseases, and other causes. Speech and non-speech characteristics were analyzed separately for these four etiology groups. Results suggested possible group differences, including site of lesion and influence of speech conditions on stuttering. Other characteristics, such as within-word localization of disfluencies and presence of secondary behaviors were comparable across the etiology groups. The implications of our results for the diagnosis of neurogenic stuttering will be discussed.
Educational objectives: After reading this article, the reader will be able to: (1) provide a concise overview of the main literature on neurogenic stuttering; (2) discuss the speech and non-speech characteristics of neurogenic stuttering; (3) provide an overview of current clinical practices for intervention with neurogenic stuttering patients and their perceived outcome. 相似文献
849.
This study examined whether mothers' and children's depressive symptoms were each uniquely related to mother-child rating discrepancies on a multidimensional dyadic construct: domains associated with parental monitoring (i.e., Child Disclosure, Parental Knowledge, and Parental Solicitation). Participants included a community sample of 335 mother/female-caregiver and child dyads (182 girls, 153 boys; 9-16 years old). Children's depressive symptoms were consistently related to each of the three domains of mother-child discrepancies. Mothers' depressive symptoms were related to perceived discrepancies in two domains (Child Disclosure and Parental Knowledge). Furthermore, these relations could not be accounted for by other informant characteristics (maternal stress, child age, child gender, child ethnicity). Findings provide important empirical support for theory suggesting that both informants' perspectives meaningfully contribute to their discrepancies in perceived behavior. Consideration of both informants' perspectives leads to valuable information as to whether any particular characteristic is an important correlate of discrepancies. 相似文献
850.
Bègue L Charmoillaux M Cochet J Cury C De Suremain F 《The American journal of psychology》2008,121(1):47-56
Thirty participants were sampled after donating charity to a street beggar and were compared by means of 2 short scales of belief in ajust world for self (BJWS) and belief in a just world for others (BJWO) with 30 randomly selected people who passed the beggar by without donating charity. We assumed that BJWO would be negatively related to altruistic behavior, whereas BJWS would be positively linked with it. A logistic regression analysis introducing BJWS, BJWO, and participants' age and gender as predictors showed that BJWO was negatively related to altruistic behavior, whereas the BJWS tended to be positively associated to it. No effects were observed for age or gender. 相似文献