全文获取类型
收费全文 | 2388篇 |
免费 | 86篇 |
国内免费 | 2篇 |
出版年
2021年 | 17篇 |
2020年 | 27篇 |
2019年 | 51篇 |
2018年 | 51篇 |
2017年 | 67篇 |
2016年 | 60篇 |
2015年 | 49篇 |
2014年 | 73篇 |
2013年 | 255篇 |
2012年 | 108篇 |
2011年 | 101篇 |
2010年 | 75篇 |
2009年 | 74篇 |
2008年 | 102篇 |
2007年 | 97篇 |
2006年 | 83篇 |
2005年 | 84篇 |
2004年 | 77篇 |
2003年 | 70篇 |
2002年 | 79篇 |
2001年 | 44篇 |
2000年 | 44篇 |
1999年 | 37篇 |
1998年 | 36篇 |
1997年 | 36篇 |
1996年 | 25篇 |
1995年 | 38篇 |
1994年 | 20篇 |
1993年 | 23篇 |
1992年 | 23篇 |
1991年 | 21篇 |
1990年 | 24篇 |
1989年 | 22篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 16篇 |
1985年 | 30篇 |
1984年 | 30篇 |
1983年 | 23篇 |
1981年 | 18篇 |
1980年 | 19篇 |
1979年 | 22篇 |
1978年 | 17篇 |
1977年 | 22篇 |
1976年 | 22篇 |
1975年 | 20篇 |
1974年 | 20篇 |
1973年 | 16篇 |
1970年 | 15篇 |
1967年 | 17篇 |
排序方式: 共有2476条查询结果,搜索用时 15 毫秒
141.
Horse-race model simulations of the stop-signal procedure 总被引:18,自引:0,他引:18
In the stop-signal paradigm, subjects perform a standard two-choice reaction task in which, occasionally and unpredictably, a stop-signal is presented requiring the inhibition of the response to the choice signal. The stop-signal paradigm has been successfully applied to assess the ability to inhibit under a wide range of experimental conditions and in various populations. The current study presents a set of evidence-based guidelines for using the stop-signal paradigm. The evidence was derived from a series of simulations aimed at (a) examining the effects of experimental design features on inhibition indices, and (b) testing the assumptions of the horse-race model that underlies the stop-signal paradigm. The simulations indicate that, under most conditions, the latency, but not variability, of response inhibition can be reliably estimated. 相似文献
142.
143.
The impact of postnatal depression on a child's risk for violent behavior was evaluated in an urban British community sample (N=122 families). Mothers were interviewed during pregnancy, at 3 months postpartum, and when the child was 1, 4, and 11 years of age. Mothers, teachers, and children reported on violent symptoms at age 11. Structural equation modeling revealed that the child's violence was predicted by the mother's postnatal depression even when her depression during pregnancy, her later history of depression, and family characteristics were taken into account. Violence was associated with symptoms of attention-deficit/hyperactivity disorder and problems with anger management. Children were most violent if mothers had been depressed at 3 months and at least once thereafter. 相似文献
144.
Dual adaptation to different amounts or directions of prismatic displacement, or both, can be acquired and maintained with little mutual interference. Associative recalibration of the regional task- or workspace, contingent on differentiation of distinguishing sensory information, can explain such adaptation. In contrast, nonassociative realignment restores dimensional mapping among spatial representations. Methods for measuring the separate contributions of those 2 kinds of prism adaptation are identified in the present article. On the basis of a critique of dual-adaptation studies, the authors suggest that recalibration can explain the data but that the method used in those experiments confounded realignment and might have obscured the effectiveness of dual-calibration training. 相似文献
145.
Smith JD Shields WE Washburn DA 《The Behavioral and brain sciences》2003,26(3):317-39; discussion 340-73
146.
Dimitrov M Nakic M Elpern-Waxman J Granetz J O'Grady J Phipps M Milne E Logan GD Hasher L Grafman J 《Brain and cognition》2003,52(2):258-270
The performance of a group of frontal lobe lesion and a group of frontal lobe dementia patients was compared with the performance of their respective matched normal control groups on two tests of inhibitory attentional control-the stop-signal reaction time task and a negative priming task. Both patient groups responded significantly slower than their respective normal control groups, but they showed only marginally significant selective impairments on the measures of inhibition. The data suggest that the specific inhibitory processes evaluated by these two tests are, in general, spared in patients with focal frontal lobe lesions or frontal lobe degeneration. 相似文献
147.
Francis WS Augustini BK Saenz SP 《Journal of experimental psychology. Learning, memory, and cognition》2003,29(6):1283-1297
Two experiments with highly fluent Spanish-English bilinguals examined repetition priming of picture identification and word retrieval in picture naming. In Experiment 1, between-language priming of picture naming was symmetric, but within-language priming was stronger in the nondominant language. In Experiment 2, priming between picture naming and translation was symmetric within both the dominant language and the nondominant language, but priming was stronger in the nondominant language. A mathematical model required only 3 process parameters to explain the pattern of priming across 8 conditions. These results indicate that shared processes are the basis of priming, that difficulty influences priming only at the process level, and that translation in both directions is concept mediated in fluent bilinguals. 相似文献
148.
Wilde NJ Strauss E Chelune GJ Hermann BP Hunter M Loring DW Martin RC Sherman EM 《心理评价》2003,15(1):56-63
Five competing models specifying the factor structure underlying the Wechsler Memory Scale-Third Edition (D. Wechsler, 1997b) primary subtest scores were evaluated in a sample of patients with intractable temporal lobe epilepsy (N = 254). Models specifying separate immediate and delayed constructs resulted in inadmissible parameter estimates and model specification error. There were negligible goodness-of-fit differences between a 3-factor model of working memory, auditory memory, and visual memory and a nested--more parsimonious--2-factor model of working memory and general memory. The results suggest that specifying a separate visual memory factor provides little advantage for this sample--an unexpected finding in a population with lateralized dysfunction, for which one might have predicted separate auditory and visual memory dimensions. 相似文献
149.
Gelfand quantales are complete unital quantales with an involution, *, satisfying the property that for any element a, if a b a for all b, then a a* a = a. A Hilbert-style axiom system is given for a propositional logic, called Gelfand Logic, which is sound and complete with respect to Gelfand quantales. A Kripke semantics is presented for which the soundness and completeness of Gelfand logic is shown. The completeness theorem relies on a Stone style representation theorem for complete lattices. A Rasiowa/Sikorski style semantic tableau system is also presented with the property that if all branches of a tableau are closed, then the formula in question is a theorem of Gelfand Logic. An open branch in a completed tableaux guarantees the existence of an Kripke model in which the formula is not valid; hence it is not a theorem of Gelfand Logic. 相似文献
150.