全文获取类型
收费全文 | 63836篇 |
免费 | 2611篇 |
国内免费 | 40篇 |
出版年
2020年 | 720篇 |
2019年 | 895篇 |
2018年 | 1224篇 |
2017年 | 1257篇 |
2016年 | 1349篇 |
2015年 | 917篇 |
2014年 | 1140篇 |
2013年 | 4995篇 |
2012年 | 2086篇 |
2011年 | 2084篇 |
2010年 | 1309篇 |
2009年 | 1317篇 |
2008年 | 1836篇 |
2007年 | 1854篇 |
2006年 | 1655篇 |
2005年 | 1465篇 |
2004年 | 1400篇 |
2003年 | 1311篇 |
2002年 | 1327篇 |
2001年 | 1984篇 |
2000年 | 1961篇 |
1999年 | 1478篇 |
1998年 | 655篇 |
1997年 | 635篇 |
1995年 | 622篇 |
1992年 | 1256篇 |
1991年 | 1124篇 |
1990年 | 1152篇 |
1989年 | 1057篇 |
1988年 | 1074篇 |
1987年 | 1000篇 |
1986年 | 1010篇 |
1985年 | 992篇 |
1984年 | 872篇 |
1983年 | 818篇 |
1982年 | 624篇 |
1979年 | 975篇 |
1978年 | 690篇 |
1977年 | 609篇 |
1976年 | 601篇 |
1975年 | 773篇 |
1974年 | 875篇 |
1973年 | 919篇 |
1972年 | 733篇 |
1971年 | 689篇 |
1970年 | 619篇 |
1969年 | 690篇 |
1968年 | 832篇 |
1967年 | 751篇 |
1966年 | 669篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
841.
40 women were taught to use self-statements to cope with pain caused by ice water. The trainer used four different strategies for reassigning a homework task of using self-statements to cope with pain produced by immersing one hand in ice water. The strategies were equally effective in eliciting compliance with the homework assignment. 相似文献
842.
The relationship between cognitive style and illusion magnitude was examined using the assimilation and contrast Delboeuf distortions. As in previous research, field dependence correlated positively with assimilation; however, a significant negative correlation with contrast was also found, suggesting that, while field dependence may involve the illusory integration of the stimulus field, field independence may involve its equally illusory differentiation. 相似文献
843.
844.
Rats were given backward pairings of a tone (CS) and shock (US) and were then tested for response to the CS in a lick suppression test. Animals given a cuing or reminder treatment prior to the test exhibited enhanced suppression in the presence of the tone relative to a variety of control conditions. The cue-induced suppression enhancement did not appear to result from sensitization or short-term motivational changes nor did it seem to depend on second-order conditioning of the test context. The effect appeared more robust as the number of backward conditioning trials preceding the cue increased. The results were discussed in terms of current explanations of backward conditioning effects. 相似文献
845.
The present experiments studied a three-event delayed sequence-discrimination (DSD) task: one arrangement (order) of two stimuli (red and yellow overhead lights) taken three in succession (e.g., red, yellow, red) was the positive sequence and the remaining seven arrangements were the negative sequences for responding and reward during the subsequent test stimulus. In Experiment 1, the final stimulus (recency) and the order of stimuli in the positive sequence controlled acquisition of discrimination. In Experiment 2, increasing the duration of memory intervals between stimuli reduced the discriminability of those negative sequences identical to the positive sequence after the delay. Three-event DSD performance in Experiments 1 and 2 was similar to two-event DSD performance in comparable published experiments. Models developed to explain pigeon performance in two-event DSD were extended to the three-event task. Results from both two- and three-event versions of the DSD task falsified a noncumulative model and several cumulative integration models (i.e., adding, averging, and some multiplying models), but corroborated one cumulative, multiplying model. 相似文献
846.
847.
L Shengold 《The Psychoanalytic quarterly》1985,54(1):20-45
The author presents the case of a patient who showed the massive defensive effects seen in people who were abused in childhood. These effects are similar to those described in George Orwell's 1984 and in his autobiographical writings: denial and "doublethink"; masochistic submission to the tormentor; turning of anger against the self and loving "Big Brother"; identifying with the abuser and tormenting others; a burgeoning of anal mechanisms and obsessive phenomena that results in a massive isolation of affects; excessive emotional control alongside outbursts of rage. The interference with memory and emotions compromises identity and humanity. The unforseeable evolution of innate gifts in a child sometimes permits a partial transcendence of these crippling defenses, as Orwell partially transcended what appears to have been the emotional deprivation of his childhood and what he felt to have been the abuse of his schoolboy years. 相似文献
848.
Two perspectives on the nature of the social group and psychological group formation are discussed. The traditional social cohesion approach traces group formation to processes of interpersonal attraction, while the social identity approach defines the group in cognitive terms and considers identification, or self-categorization, to be the mechanism of psychological group formation. On the basis of an experiment by Turner, Sachdev and Hogg (1983) it is hypothesized that interpersonal attraction (positive or negative) is related to group formation only in so far as it enhances intergroup distinctiveness. This hypothesis is experimentally tested in a 2 × 3 (interpersonal liking/disliking per se versus no explicit categorization/random categorization/criterial categorization on the basis of affect) factorial design employing the ‘minimal group’ paradigm. People who like each other and were not explicitly categorized formed a group. This effect was enhanced by criterial categorization but disappeared when categorization was random. Although the results do not support the hypothesis, they are not explicable in social cohesion terms. A social identity explanation is furnished—attraction influences group formation by acting, under certain specifiable conditions, as a cognitive criterion for common category membership. This explanation is located in current theorizing and is proposed as part of a reconceptualization of the relationship between interpersonal attraction and group formation. 相似文献
849.
Additional results from Rutte and Wilke's (1984) study are presented. In the context of a social dilemma situation two variables were manipulated: use and variance. Preference for various decision structures is the issue of the present paper. It appeared that a large majority structure and an unanimity structure were mast preferred. A small majority structure and a structure in which each decides for him/herself were intermediately preferred. Whereas a structure in which one person, a leader, decides for all was least preferred. Further analysis of these data suggested that only the latter two decision structures were influenced by the use and variance manipulations. 相似文献
850.
When a sentence with more than one clause is processed, words of the first clause become less available for recall or recognition once the clause boundary has been passed. One common interpretation of this observation is that the representation of a given word shifts from a predominantly surface form (e.g., phonological or lexical) to a semantic form, after the clause boundary. Two experiments that test that interpretation are reported. In the first experiment, two-clause spoken sentences were followed by spoken word or picture probes. Pictures were intended to provide a fast semantic match to probed words, but a slow surface match. Although response times exhibited a robust main effect of the clause position of the probe, no interaction with probe type was found. Similar results were obtained in a second experiment that compared pictures with written word probes. The faster response to picture than to word probes in the second experiment indicates that subjects did not covertly name the picture, but made a semantic match (as intended). These observations suggest the following reinterpretation of earlier sentence memory experiments: Words in the most recent clause of a sentence are more available than words in an earlier clause because their semantic representations are more active, not because their surface representations are more active. 相似文献