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141.
This study examines the psychometric properties of a depression questionnaire. The goal was to improve the technical quality of traditional measures of depression in Spanish youth. 310 participants, aged 18-24 years, filled in the self-report questionnaire. The data were analyzed by means of the Rasch model. Results show that model fit, average item reliability (.97), and average person reliability (.88) are high. After deleting four indicators showing misfit and 12 showing sex bias, the resulting scale measures clinical depression objectively. Using this scale, the expected sex-related differences are found. 相似文献
142.
This paper studies mixed-gender group interactions in a strategic game where group members are sequentially eliminated till
a single winner takes all. Study 1 tests the hypothesis that female contestants are retained till final rounds where they
are eliminated. Using observational data from the US television show The Weakest Link (20 shows), results show that females are finalists but not winners. In a laboratory study (Study 2, 67 Berkeley undergraduates),
we show that this effect is attenuated when winnings are shared among finalists (versus one winner takes all) due to the reduction
in competitive pressures in the context.
This research was supported in part by the Junior Faculty Research Grant awarded by the University of California at Berkeley
to the second author. 相似文献
143.
Ana Guinote 《Journal of experimental social psychology》2007,43(3):433-440
Suppressing unwanted thoughts increases the accessibility of these thoughts after suppression is released. Two studies test the hypothesis that the magnitude of post-suppressional rebound is moderated by power. Study 1 measured participants’ thoughts about a white bear under suppression and expression instructions, following Wegner, Schneider, Carter, and White (1987). Study 2 measured stereotype accessibility after a task that required participants to describe one day in the life of an African-American under suppression or no-suppression instructions. Consistently across the two studies, powerful participants showed stronger post-suppressional rebound relative to powerless participants. The consequences of these findings for decision making and stereotyping are discussed. 相似文献
144.
145.
It has recently been stated that exogenous attention impairs temporal-resolution tasks (Hein, Rolke, & Ulrich, 2006; Rolke, Dinkelbach, Hein, & Ulrich, 2008; Yeshurun, 2004; Yeshurun & Levy, 2003). In comparisons of performance on spatially cued trials versus neutral cued trials, the results have suggested that spatial attention decreases temporal resolution. However, when performance on cued and uncued trials has been compared in order to equate for cue salience, typically speed—accuracy trade-offs (SATs) have been observed, making the interpretation of the results difficult. In the present experiments, we aimed at studying the effect of spatial attention in temporal resolution while using a procedure to control for SATs. We controlled reaction times (RTs) by constraining the time to respond, so that response decisions would be made within comparable time windows. The results revealed that when RT was controlled, performance was impaired for cued trials as compared with neutral trials, replicating previous findings. However, when cued and uncued trials were compared, performance was actually improved for cued trials as compared with uncued trials. These results suggest that SAT effects may have played an important role in the previous studies, because when they were controlled and measured, the results reversed, revealing that exogenous attention does improve performance on temporal-resolution tasks. 相似文献
146.
Luis Aguado Ana García-Gutierrez Ignacio Serrano-Pedraza 《Attention, perception & psychophysics》2009,71(1):9-25
Classification of faces as to their sex or their expression—with sex and expression varying orthogonally—was studied in three experiments. In Experiment 1, expression classification was influenced by sex, with angry male faces being classified faster than angry female faces. Complementarily, sex classification was faster for happy than for angry female faces. In Experiment 2, mutual interaction of sex and expression was also found when the participants were asked to classify top and bottom face segments. In Experiment 3, a face inversion effect was found for both sex and expression classification of whole faces. However, a symmetrical interaction between sex and expression was again found. The results are discussed in terms of configural versus feature processing in the perception of face sex and expression and of their relevance to face perception models that postulate independent processing of different facial features. 2009 The Psychonomic Society, Inc. 相似文献
147.
In the present study, we used the Deese/Roediger-McDermott paradigm to analyze the relationship between theme identifiability
of word lists and false memories in adults and children. We conducted two normative studies to determine the identifiability
levels for critical unpresented words in 40 associative lists in adults and in 16 associative lists in children. Then, in
three experiments, false memories for critical words that were either easy or hard to identify were analyzed in adults and
in children 4–5 years old and 11–12 years old. Opposite results were found for adults and children. Lists with highly identifiable
critical words produced fewer false memories for adults but more false memories for children. These results suggest that,
if they can identify critical words, adults use an identify-to-reject strategy to edit out false memories, whereas, in children,
theme identification does not lead to the use of such a monitoring strategy. 相似文献
148.
Alban Lemasson Anaïs Boutin Sarah Boivin Catherine Blois-Heulin Martine Hausberger 《Animal cognition》2009,12(5):693-704
Many animal species that rely mainly on calls to communicate produce individual acoustic structures, but we wondered whether
individuals of species better known as visual communicants, with small vocal repertoires, would also exhibit individual distinctiveness
in calls. Moreover, theoretical advances concerning the evolution of social intelligence are usually based on primate species
data, but relatively little is known about the social cognitive capacities of non-primate mammals. However, some non-primate
species demonstrate auditory recognition of social categories and possess mental representation of their social network. Horses
(Equus caballus) form stable social networks and although they display a large range of visual signals, they also use long-distance whinny
calls to maintain contact. Here, we investigated the potential existence of individual acoustic signatures in whinny calls
and the ability of horses to discriminate by ear individuals varying in their degree of familiarity. Our analysis of the acoustic
structure of whinnies of 30 adult domestic horses (ten stallions, ten geldings, ten mares) revealed that some of the frequency
and temporal parameters carried reliable information about the caller’s sex, body size and identity. However, no correlations
with age were found. Playback experiments evaluated the behavioural significance of this variability. Twelve horses heard
either control white noise or whinnies emitted by group members, familiar neighbours or unfamiliar horses. While control sounds
did not induce any particular response, horses discriminated the social category of the callers and reacted with a sound-specific
behaviour (vigilance and attraction varied with familiarity). Our results support the existence of social knowledge in horses
and suggest a process of vocal coding/decoding of information. 相似文献
149.
Ana D. Rivera-Tovar Paul Pilkonis Ellen Frank 《Journal of psychopathology and behavioral assessment》1992,14(2):189-199
The symptom patterns of 180 women with prospectively confirmed late luteal-phase dysphoric disorder (LLPDD) were examined using a careful application of factor and cluster analytic techniques. Factor analysis of premenstrual change scores on 33 common premenstrual syndrome symptoms yielded four orthogonal factors that were consistent across two sets of menstrual cycle data. These were a negative affect dimension with concomitant behavioral changes, physical symptoms, agitation, and positive arousal. Cluster analysis of factor scores grouped patients into one of five symptom patterns, the most common of which is a general distress cluster, characterized by symptoms across all dimensions. The LLPDD symptom groups identified are remarkably consistent with those of earlier studies using both normative and clinic samples, and consideration of symptom pattern differences in future research may greatly increase our understanding of this disorder. 相似文献
150.
Nancy A. Gonzales Ana Mari Cauce Ruth J. Friedman Craig A. Mason 《American journal of community psychology》1996,24(3):365-387
Using a 1-year prospective design, this study examined the influence of family status variables (family income, parental education, family structure), parenting variables (maternal support and restrictive control), peer support, and neighborhood risk on the school performance of 120 African American junior high school students. In addition to main effects of these variables, neighborhood risk was examined as a moderator of the effects of parenting and peer support. Family status variables were not predictive of adolescent school performance as indexed by self-reported grade point average. Maternal support at Time 1 was prospectively related to adolescent grades at Time 2. Neighborhood risk was related to lower grades, while peer support predicted better grades in the prospective analyses. Neighborhood risk also moderated the effects of maternal restrictive control and peer support on adolescent grades in prospective analyses. These findings highlight the importance of an ecological approach to the problem of academic underachievement within the African American community. 相似文献