全文获取类型
收费全文 | 2423篇 |
免费 | 92篇 |
国内免费 | 5篇 |
出版年
2022年 | 14篇 |
2021年 | 19篇 |
2020年 | 38篇 |
2019年 | 29篇 |
2018年 | 58篇 |
2017年 | 69篇 |
2016年 | 52篇 |
2015年 | 37篇 |
2014年 | 54篇 |
2013年 | 285篇 |
2012年 | 124篇 |
2011年 | 126篇 |
2010年 | 65篇 |
2009年 | 78篇 |
2008年 | 116篇 |
2007年 | 93篇 |
2006年 | 91篇 |
2005年 | 89篇 |
2004年 | 83篇 |
2003年 | 82篇 |
2002年 | 77篇 |
2001年 | 48篇 |
2000年 | 39篇 |
1999年 | 36篇 |
1998年 | 44篇 |
1997年 | 29篇 |
1996年 | 29篇 |
1995年 | 34篇 |
1994年 | 37篇 |
1993年 | 30篇 |
1992年 | 30篇 |
1991年 | 28篇 |
1990年 | 32篇 |
1989年 | 30篇 |
1988年 | 17篇 |
1987年 | 21篇 |
1986年 | 17篇 |
1985年 | 21篇 |
1984年 | 20篇 |
1983年 | 26篇 |
1982年 | 24篇 |
1981年 | 19篇 |
1980年 | 19篇 |
1979年 | 18篇 |
1978年 | 23篇 |
1977年 | 18篇 |
1976年 | 13篇 |
1975年 | 20篇 |
1974年 | 16篇 |
1968年 | 12篇 |
排序方式: 共有2520条查询结果,搜索用时 15 毫秒
91.
S H Mitchell J Brener 《Journal of experimental psychology. Animal behavior processes》1991,17(2):174-185
The effects of increasing work (force) requirements on energy expenditure and response topography were examined in 7 rats pressing a beam to earn food. For the 1st 16 days, the force requirement was 5.52 x 10(-2) N (5.625 g). This increased by 4.91 x 10(-2) N (5 g) every 7th session until Ss had experienced 10 upward shifts. Following the 54.57 x 10(-2) N (55.625 g) condition, the original criterion was reinstated. During the augmented phase. Ss maintained stable reinforcement rates across conditions by increasing the peak force of beam pressing. These higher forces, occurring within 20 reinforcements of changing the force criterion, were produced primarily by increases in the rate of change of force (delta F/delta T). Also, while the rate of work performed on the beam increased, the overall energy expenditure fell. In contrast to these rapid adjustments, reinstating the original 5.52 x 10(-2) N (5.625 g) criterion resulted in only gradual alterations in motor performance. 相似文献
92.
93.
John D Krumboltz Stephanie S Rude Lynda K Mitchell Daniel A Hamel Richard T Kinnier 《Journal of Vocational Behavior》1982,21(3):349-358
What career decision-making procedures enable people to make decisions that yield consequences congruent with their own values? The 40 “best” (most congruent) and 40 “worst” decision makers on the Career Decision Simulation were compared in a sample of 148 community college students. No significant differences appeared in the amount of double checking, number of occupations and information sources checked, amount of information collected, decision time required, and the proportion of information sought about high values. The “best” decision makers, however, were significantly more persistent in immediately seeking more information about an occupation that seemed to match one of their most important personal work values. Following a values-guided search appears more effective than simply searching exhaustively. 相似文献
94.
Eye movements were recorded as subjects read sentences containing temporary structural ambiguities. In accord with the garden-path theory of sentence comprehension, shorter reading times were found for sentences conforming to certain independently motivated parsing strategies (late closure and minimal attachment) than for comparable sentences which violate these strategies. Further, longer fixation durations were associated with the very first fixation in the region of the sentence which disambiguated the sentence, suggesting that the human sentence-parsing mechanism operates in a rather systematic fashion, immediately computing the structural consequences of fixated material for the analysis of preceding material. The pattern of regressive eye movements did not conform to the view that the parsing mechanism automatically returns to the beginning of the sentence to revise an incorrect analysis of linguistic material nor did it support the view that the parsing mechanism systematically backtracks through the sentence until the source of the erroneous analysis is located. Rather, the pattern of regressions indicated that the parsing mechanism typically engages in selective reanalysis, exploiting whatever information it has available about the type of error it has committed to guide its reanalysis attempts. Finally, it is emphasized that an understanding of the parser's revision procedures is essential to an explanation of why certain linguistic structures cannot be successfully parsed by humans. 相似文献
95.
This paper covers mathematical, statistical, and experimental design considerations needed to design a computer system for EEG data acquisition, spectrum, and cross-spectrum analyses. A tutorial approach is used in which no formal proofs are offered. Conclusions are stated simply and in summary fashion, without justifying arguments. References to formal works are given. Conclusions about system design are discussed. Frequently encountered design issues are mentioned with various alternatives. 相似文献
96.
J. E. Keith Smith 《Attention, perception & psychophysics》1982,31(2):183-189
In a recent paper (1981), Keren and Baggen proposed two new models for alphanumeric confusion data, based on Tversky’s (1977) feature model of similarity, and compared them with Luce’s (1963) biased choice model. On the basis of their data, they concluded that, although the choice model fit slightly better, their models were to be preferred on grounds of parsimony and interpretability. It is shown here that both of these models are special cases of the Luce model, so that the general Luce model will necessarily fit better. This leads to considerable reinterpretation of Keren and Baggen’s conclusions. Finally, better methods of estimating parameters and evaluating goodness-of-fit are suggested, taking advantage of this relation between the models. 相似文献
97.
The correspondence between subjective and neural response to change in acoustic intensity was considered by deriving power functions from subjective loudness estimations and from the amplitude and latency of auditory brainstem evoked response components (BER). Thirty-six subjects provided loudness magnitude estimations of 2-sec trains of positive polarity click stimuli, 20/sec, at intensity levels ranging from 55 to 90 dB in 5-dB steps. The loudness power function yielded an exponent of .48. With longer trains of the same click stimuli, the exponents of BER latency measures ranged from -.14 for wave I to -.03 for later waves. The exponents of BER amplitude-intensity functions ranged from .40 to .19. Although these exponents tended to be larger than exponents previously reported, they were all lower than the exponent derived from the subjective loudness estimates, and a clear correspondence between the exponents of the loudness and BER component intensity functions was not found. 相似文献
98.
Major conceptual models for counseling supervision are described and compared: supervision as a counseling analog, as an instruction or teaching analog, and as a role that includes counseling and teaching aspects. Although each of these approaches avails supervisors of familiar roles, none adequately provides the scope and utility required of a model for such a complex function. Thus, a higher order metamodal, supervision as consultation, is presented, and this consultation metamodel is related to the psychoeducational model for counseling psychology. 相似文献
99.
Mitchell R. Bornstein Alan S. Bellack Michel Hersen 《Journal of applied behavior analysis》1977,10(2):183-195
The effects of social-skills training consisting of instructions, feedback, behavior rehearsal, and modelling were examined in a multiple-baseline analysis in four unassertive children. The treatment was effective in that the behaviors selected for modification changed markedly. The effects of treatment generalized from trained to untrained items (interpersonal situations requiring assertive responding) and gains were maintained at the two- and four-week followup probe sessions. In addition, overall assertiveness in all subjects increased from baseline assessment to the conclusion of treatment and into followup. 相似文献
100.
Keith J. Holyoak 《Cognitive psychology》1977,9(1):31-51
The information used to choose the larger of two objects from memory was investigated in two experiments that compared the effects of a number of variables on the performance of subjects who either were instructed to use imagery in the comparison task or were not so instructed. Subjects instructed to use imagery could perform the task more quickly if they prepared themselves with an image of one of the objects at its normal size, rather than with an image that was abnormally big or small, or no image at all. Such subjects were also subject to substantial selective interference when asked to simultaneously maintain irrelevant images of digits. In contrast, when subjects were not specifically instructed to use imagery to reach their decisions, an initial image at normal size did not produce significantly faster decisions than no image, or a large or small image congruent with the correct decision. The selective interference created by simultaneously imaging digits was reduced for subjects not told to base their size comparisons on imagery. The difficulty of the size discrimination did not interact significantly with any other variable. The results suggest that subjects, unless specifically instructed to use imagery, can compare the size of objects in memory using information more abstract than visual imagery. 相似文献