全文获取类型
收费全文 | 50788篇 |
免费 | 1953篇 |
国内免费 | 22篇 |
出版年
2019年 | 571篇 |
2018年 | 812篇 |
2017年 | 887篇 |
2016年 | 918篇 |
2015年 | 697篇 |
2014年 | 822篇 |
2013年 | 4177篇 |
2012年 | 1406篇 |
2011年 | 1476篇 |
2010年 | 940篇 |
2009年 | 913篇 |
2008年 | 1318篇 |
2007年 | 1300篇 |
2006年 | 1175篇 |
2005年 | 1103篇 |
2004年 | 1078篇 |
2003年 | 1022篇 |
2002年 | 1076篇 |
2001年 | 1402篇 |
2000年 | 1348篇 |
1999年 | 1096篇 |
1998年 | 570篇 |
1997年 | 530篇 |
1996年 | 547篇 |
1995年 | 519篇 |
1992年 | 945篇 |
1991年 | 904篇 |
1990年 | 880篇 |
1989年 | 825篇 |
1988年 | 857篇 |
1987年 | 783篇 |
1986年 | 835篇 |
1985年 | 837篇 |
1984年 | 710篇 |
1983年 | 638篇 |
1981年 | 505篇 |
1979年 | 757篇 |
1978年 | 619篇 |
1977年 | 527篇 |
1976年 | 528篇 |
1975年 | 633篇 |
1974年 | 804篇 |
1973年 | 831篇 |
1972年 | 634篇 |
1971年 | 646篇 |
1970年 | 610篇 |
1969年 | 615篇 |
1968年 | 774篇 |
1967年 | 694篇 |
1966年 | 706篇 |
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
921.
Gary B. Glavin 《Integrative psychological & behavioral science》1984,19(3):157-159
Pregnant primiparous rats were subjected to four days of light restraint stress on postconception days 7 through 10, inclusive, coincident with the development of the fetal gastrointestinal system. Twenty male and twenty female offspring from prenatally stressed and nonstressed rats were then subjected to two hours of supine cold-restraint as adults. Eighty percent of nonprenatally stressed offspring developed gastric lesions, while 47.5% of offspring of prenatally stressed mothers displayed lesions. A significant sex-stress interaction was detected, indicating that male offspring from prenatally stressed mothers display less severe gastric lesions in response to restraint stress as adults than do male offspring from nonprenatally stressed mothers. Female offspring from both prenatal stress conditions showed similar levels of stress-induced lesions. 相似文献
922.
923.
W S Poland 《Journal of the American Psychoanalytic Association》1984,32(2):283-299
It is by the application of the principle of neutrality, born of his respect for the essential otherness of the patient, that the analyst focuses the dyadic analytic work in the service of the patient's growing self-analytic capacity. Thus, the general principle of neutrality is distinguished from the technical tactic of abstinence, the latter being a specific function utilized to facilitate and foster analytic regression. Neutrality can be defined as it applies to the major subfunctions of the analyst's work ego. Perception of the patient's intrapsychic processes (both empathically and cognitively) requires a neutrality of appearance on the analyst's part in order to minimize the distortion of the unfolding transference neurosis. Integration and understanding of the patient's communications require mastery and neutralization of the analyst's own internal processes in order to minimize countertransferential distortions. Appropriate interpretive intervention requires neutrality of action, i.e., mastery of impulses related to power, neutralizing them into the service of the analytic work; tact is defined as a specific psychoanalytic function in this regard. Collaborative ignorance is examined as a specific instance of false neutrality. In this an analytic guise serves to mask a countertransferential conflict. Neutrality serves as an overriding technical principle, not an imperative for perfectionism . Factors intrinsic to the analytic process also influence the application of this principle. 相似文献
924.
925.
W. M. O'neil 《Australian journal of psychology》1984,36(2):285-289
Three myths about Wundt have been perpetuated in English language accounts of his work. First, he is said to have founded a Psychologisches Institut (a formally recognized psychological research laboratory) in 1879. Second, he is said to be the first psychologist, as distinct from the first contributor to psychology. Third, he is said to have formulated an elementarist psychology of mental content or experience. The first and second are trivial myths which in isolation would be scarcely worth a comment. The third is a gross misrepresentation which ignores the purposivist-voluntarist underlay of his experimental cognitive psychology and the humanistic, cultural concern of his Völkerpsychofogie. 相似文献
926.
Frances W. Beck 《Journal of School Psychology》1984,22(4):347-352
The purpose of this study was (a) to determine if a declassification occurs when estimated learning potential (ELP) is used in reevaluation of special education students and (b) to assess the effects of the use of ELP by multidisciplinary teams. Subjects included 107 black and 13 white students (83 males and 37 females) referred for reevaluation from classes for the mentally retarded. Data analysis consisted of determining the percentage of students who would be classified as mentally retarded according to the main criterion of (a) Wechsler Intelligence Scale for Children-Revised (WISC-R) scores, or (b) ELP scores, or (c) multidisciplinary teams' placement. A chi-square test of independence indicated a significant difference between WISC-R and ELP scores; and between multidisciplinary teams' placement and ELP scores (p<.05). Students already in special education classes for the mentally retarded were not determined to be ineligible for services by multidisciplinary teams, even though 15% of the students would be ineligible for services according to ELP scores. 相似文献
927.
Rutherford B. Porter 《Journal of School Psychology》1984,22(3):223-231
This report relates personal experiences as they influenced the emerging role of the school psychologist, especially in Pennsylvania and Indiana from 1930 to 1970. 相似文献
928.
Orthogonal and oblique factor analyses were performed using the Wechsler Adult Intelligence Scale-Revised (WAIS-R) standardization sample (Wechsler, 1981). Using objective criteria, it was decided to retain two factors. Evidence for a strong general intelligence (g) factor was found from both the orthogonal and oblique rotations. Whereas the verbal IQ provided an acceptable estimate of the Verbal Comprehension factor, a purer measure was found in the form of a Verbal Comprehension Deviation Quotient containing only the Information, Vocabulary, Comprehension, and Similarities subtests. The performance IQ was found to be an inadequate measure of the Perceptual Organization factor. A Perceptual Organization Deviation Quotient, containing only the Block Design and Object Assembly subtests, was recommended as an effective alternative. Analysis of the variance components for each subtest at every age level revealed that a substantial proportion of subtests at a wide range of age levels evidence either high or intermediate levels of specific variance. These results are discussed in terms of interpreting individual subtest scores and patterns. Each of the study's major findings are compared with prior work done with the Wechsler Adult Intelligence Scale (WAIS) (Wechsler, 1955). 相似文献
929.
A temporal limit on the effect of future food on current performance in an analogue of foraging and welfare 总被引:6,自引:5,他引:1
下载免费PDF全文
![点击此处可从《Journal of the experimental analysis of behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Timberlake W 《Journal of the experimental analysis of behavior》1984,41(2):117-124
Rats obtained access to food twice each 24-hour period. The first session was a work session in which food was available on a progressive-ratio schedule. During the second session, which occurred between 1 and 23 hours after the work session, food was freely available up to a fixed total intake each 24 hours. The situation resembled elements of several real world circumstances, including the choice between continuing to forage in a rapidly depleting patch and waiting for a better patch, and between working now and receiving a guaranteed income later. The purpose of the experiment was to explore the time period over which future access to reward could affect current responding. Contrary to what might be expected from recent theorizing, anticipation of future food delayed by an hour or more after the start of the work session had no effect on current performance. Food intake was high and constant during work sessions except for a prefeeding effect that occurred when the free session closely preceded the next day's work session. Also, an increase in the difficulty of the work schedule increased the amount of work and the maximum price paid for food as if the work session were the only time food was available. The results indicate the importance of considering temporal limits in theories that require animals to integrate input over time to determine the allocation of resources among alternatives. 相似文献
930.
B F Skinner 《Journal of the experimental analysis of behavior》1984,41(2):217-221