全文获取类型
收费全文 | 24613篇 |
免费 | 905篇 |
国内免费 | 9篇 |
出版年
2018年 | 330篇 |
2017年 | 350篇 |
2016年 | 363篇 |
2015年 | 260篇 |
2014年 | 331篇 |
2013年 | 1748篇 |
2012年 | 582篇 |
2011年 | 624篇 |
2010年 | 427篇 |
2009年 | 388篇 |
2008年 | 611篇 |
2007年 | 551篇 |
2006年 | 523篇 |
2005年 | 452篇 |
2004年 | 456篇 |
2003年 | 461篇 |
2002年 | 472篇 |
2001年 | 634篇 |
2000年 | 638篇 |
1999年 | 500篇 |
1998年 | 255篇 |
1997年 | 273篇 |
1996年 | 270篇 |
1995年 | 255篇 |
1992年 | 487篇 |
1991年 | 448篇 |
1990年 | 445篇 |
1989年 | 416篇 |
1988年 | 435篇 |
1987年 | 407篇 |
1986年 | 448篇 |
1985年 | 426篇 |
1984年 | 375篇 |
1983年 | 332篇 |
1981年 | 265篇 |
1979年 | 400篇 |
1978年 | 322篇 |
1977年 | 280篇 |
1976年 | 293篇 |
1975年 | 339篇 |
1974年 | 428篇 |
1973年 | 461篇 |
1972年 | 341篇 |
1971年 | 365篇 |
1970年 | 334篇 |
1969年 | 361篇 |
1968年 | 434篇 |
1967年 | 399篇 |
1966年 | 415篇 |
1958年 | 253篇 |
排序方式: 共有10000条查询结果,搜索用时 390 毫秒
191.
M C Alvarado J W Rudy 《Journal of experimental psychology. Animal behavior processes》1992,18(2):145-153
Little is known about the conditions that encourage animals to learn to use configural associations to guide their behavior or the consequences of such learning for transfer. This study provided some information about these issues by examining how rats solve the transverse-patterning problem, which requires a configural solution (Spence, 1952). Animals had to concurrently solve 3 simultaneous visual discriminations, represented abstractly as A+ versus B-, B+ versus C-, and C+ versus A-. Experiment 1 indicated that rats use a configural solution even when the problems have an elemental solution, provided that the significance of 1 element (e.g., B) shared by 2 problems is ambiguous (e.g., A+/B-; and B+/C-). Experiments 2 and 3 suggested that, when stimulated to use a configural solution by solving the A+/B- and B+/C- problems, rats transfer the configural solution to problems that have no ambiguous elements. 相似文献
192.
A multivariate hierarchical model of specific cognitive abilities was fitted to data from 7-year-old adopted and nonadopted sibling pairs in the Colorado Adoption Project in order to assess differential genetic influence on specific mental abilities. Model fitting results and Schmid-Leiman (Schmid & Leiman, 1957) transformations reveal significant heritable variation for verbal, spatial, and memory factors independent of general cognitive ability for the eight ability tests examined. In contrast, environmental influences are primarily measure-specific. The results suggest genetic effects in middle childhood that differentially influence mental ability scores. 相似文献
193.
A 3×2×2 incomplete factorial design was employed to test the effects of sex, dominance, and their interaction on leader emergence. The factors included dominance distribution (high/high, high/low, middle/middle), sex (male-female), and dyad composition (mixed sex-same sex). The subjects were all Caucasians and were pretested on the California Psychological Inventory Dominance Scale. The data revealed that dominance was a predictor of leader emergence in same-sex conditions where high-dominant individuals assumed the role of leader in much greater proportions than their low-dominant partners. In mixed-sex dyads, sex appeared to be a more potent predictor with males becoming leaders at levels greater than would be suspected given dominance levels. 相似文献
194.
195.
W. Jay Strickland 《Sex roles》1992,26(9-10):423-439
Unlike other types of career wives, Assemblies of God missionary wives report very high role satisfaction and low depressive symptomatology. In order to explain this “exception,” this study examines (1) the social-structural conditions that affect satisfaction, (2) affective and behavioral responses, and (3) organizational implications. Data were collected through participant observation, interviewing, analysis of documents, and questionnaire research (n=200). Findings suggest that missionary wives often evoked satisfaction in response to institutional emotion norms in the manner suggested by the emotion management perspective. The social-psychological process of emotion work is examined, as well as the manner in which compliance facilitates organizational production and reproduction. Hypotheses for future research are suggested. 相似文献
196.
Janet Baumann C.S.W. 《Group》1992,16(2):95-100
This paper addresses some of the dynamics, resistances, and transference and countertransference considerations in group psychotherapy with eating disordered patients. Several resistances are delineated, including guilt over being helped, the recreation of early problems around control and forced feeding, and withdrawal as a defensive operation. A brief vignette is presented which highlights the demand on the part of the therapist as well as the patient to contain and manage feelings rather than acting on them. Lastly, the author argues that group participation helps the patient to identify, articulate, and accept feelings and to promote assertiveness.This paper is based on a presentation given at the Training Institute for Mental Health on May 11, 1991. 相似文献
197.
198.
Roger W. Sperry 《Zygon》1992,27(3):245-259
Abstract. My account of the recent turnabout in the treatment of mental states in science and its basis in a modified concept of causal determinism and my claim that this opens the way for beliefs and values consistent with science are here reaffirmed in response to perceived weaknesses and "inherent incompleteness." Contested issues are reviewed to better clarify the main thesis. An inherent weakness in respect to deep spiritual needs is recognized and tentative remedial measures explored. 相似文献
199.
Aging and shifts of visual spatial attention. 总被引:2,自引:0,他引:2
Three experiments examined adult age differences in the efficiency of endogenous (voluntary) and exogenous (involuntary) attention shifts. Younger and older subjects performed a spatial cuing task in which abruptly onset peripheral cues (Experiment 1) or central, symbolic cues (Experiments 2 and 3) were presented before a target stimulus at intervals ranging from 50 to 250 ms. With peripheral cues, the magnitude of cuing effects was at least as great for older as for younger adults and followed a similar time course. Similar results were obtained with symbolic cues, although cuing effects for older adults varied with cue difficulty. The results suggest that cue encoding may decline with advancing age but that the efficiency of the shift process is preserved. 相似文献
200.