全文获取类型
收费全文 | 5943篇 |
免费 | 323篇 |
国内免费 | 3篇 |
出版年
2023年 | 46篇 |
2021年 | 64篇 |
2020年 | 115篇 |
2019年 | 161篇 |
2018年 | 178篇 |
2017年 | 206篇 |
2016年 | 184篇 |
2015年 | 133篇 |
2014年 | 197篇 |
2013年 | 689篇 |
2012年 | 255篇 |
2011年 | 308篇 |
2010年 | 170篇 |
2009年 | 205篇 |
2008年 | 258篇 |
2007年 | 204篇 |
2006年 | 217篇 |
2005年 | 199篇 |
2004年 | 215篇 |
2003年 | 180篇 |
2002年 | 178篇 |
2001年 | 70篇 |
2000年 | 79篇 |
1999年 | 65篇 |
1998年 | 82篇 |
1997年 | 73篇 |
1996年 | 64篇 |
1995年 | 54篇 |
1994年 | 48篇 |
1993年 | 45篇 |
1992年 | 62篇 |
1991年 | 44篇 |
1990年 | 47篇 |
1989年 | 45篇 |
1988年 | 46篇 |
1987年 | 49篇 |
1986年 | 50篇 |
1985年 | 60篇 |
1984年 | 69篇 |
1983年 | 54篇 |
1982年 | 51篇 |
1981年 | 61篇 |
1980年 | 67篇 |
1979年 | 47篇 |
1978年 | 66篇 |
1977年 | 63篇 |
1976年 | 44篇 |
1975年 | 55篇 |
1974年 | 45篇 |
1973年 | 39篇 |
排序方式: 共有6269条查询结果,搜索用时 31 毫秒
21.
Much of what we learn from an experiment depends on what we ask of the subjects and how we ask it. Most music perception and cognition research is implemented using a single methodology. Recently, questions have been raised about the validity and generalizability of such a limited approach, particularly regarding such complicated theoretical constructs as musical tonality. We propose that a useful technique is to converge on the answer to experimental questions by applying multiple methods, in essence, simultaneously investigating the central research question as well as ancillary questions of method. Such an approach is facilitated by a computer hardware and software system that integrates experimental design, data collection, data analysis, and data dissemination, linking off-the-shelf components through standard file formats and data-exchange protocols. The list-based system, using an IBM-type PC running Windows 3.0, handles real-time natural sound sampling and playback, signal synthesis and analysis, MIDI input and output, digitized picture display, and various subject-response mechanisms. On the basis of graphical icons, the integrated system can be used to build custom experimental designs. Examples of convergent psychomusical experiments that were designed, implemented, and analyzed using the system are discussed. 相似文献
22.
Working in the fragment of Martin-Löfs extensional type theory [12] which has products (but not sums) of dependent types, we consider two additional assumptions: firstly, that there are (strong) equality types; and secondly, that there is a type which is universal in the sense that terms of that type name all types, up to isomorphism. For such a type theory, we give a version of Russell's paradox showing that each type possesses a closed term and (hence) that all terms of each type are provably equal. We consider the kind of category theoretic structure which corresponds to this kind of type theory and obtain a categorical version of the paradox. A special case of this result is the degeneracy of a locally cartesian closed category with a morphism which is generic in the sense that every other morphism in the category can be obtained from it via pullback.The financial support of the Royal Society in London is gratefully acknowledged. 相似文献
23.
24.
The validity of verbal protocols 总被引:3,自引:0,他引:3
The reactivity of a "think aloud" verbal protocol and the veridicality of different retrospective protocols were tested over four dissimilar tasks. Generating a concurrent protocol altered accuracy in two tasks, simple addition and a choice between two gambles, and generally prolonged response times. Such reactivity partially qualifies the dominant theory of protocol generation (Ericsson & Simon, 1984). Retrospective protocols yielded substantial forgetting or fabrication in all tasks, supporting the consensus on the nonveridicality of these methods. It is concluded that protocol validity should be based on an empirical check rather than on theory-based assurances. 相似文献
25.
J. Gayle Beck Heinrich Taegtmeyer M. Andrew Berisford Alixandre Bennett 《Journal of psychopathology and behavioral assessment》1989,11(3):209-220
Recent reports have indicated similarities between patients with persistent chest pain of nonorganic origin and patients with panic disorder. In order to explore this association further, we administered a structured interview and three self-report measures (State-Trait Inventory, Beck Depression Inventory, and SCL90-R) to three subject groups: (1) a sample with persistent chest pain (CP; n=14) who had been screened and found to have normal coronary arteries, (2) a sample of patients with panic disorder (PD; n=14), and (3) a sample of matched normals (n=14). CP patients were considered to be free of coronary artery disease (CAD) following normal cardiac catheterization and/or normal thallium stress tests and were not diagnosed initially with panic disorder. PD patients were diagnosed with a standardized psychiatric interview and were free of organic causes of panic. Using an exploratory data analytic approach, the results indicated that both CP and PD samples reported increased levels of state and trait anxiety (p <.0001), depression (p <.01), and somatization (p <.0001) compared with normals. CP patients differed from PD patients in their less frequent use of anxiolytic medication (p <.01) and lower levels of reported panic anxiety and phobic avoidance (p <.0001). These data suggest that persistent chest pain in the absence of CAD shares some features with panic disorder, yet differs from panic in key ways as well. The results are discussed in light of the role of anxiety in contributing to symptom labeling.This research was supported by Grant 86G-491 from the American Heart Association, Texas Affiliate, to J.G.B. H.T. is the recipient of USPHS Research Career Development Award K04-HL-0122246. 相似文献
26.
27.
Eleven subjects were asked to silently read slides of the letters “P” and “T,” and to view meaningless control slides similarly as they were presented visually. One-eighth-second electromyographic excerpts were sampled from the baseline and response periods. The data were then transformed into the frequency domain for inferential analyses. The mean power spectral frequencies for the response period were significantly lower than those for the base-line in the overall analysis. There were, however, no significant changes from baseline as a function of kind of stimulus (T, P, or Control) or muscle activated (lips or tongue). It was concluded that there was a generalized responding, not unique to the processing of the specific stimuli studied. Frequency analysis of EMG measures of covert behavior holds some promise of yielding unique information not available through traditional analysis procedures, but more sensitive methods than those used here would be required to demonstrate this. 相似文献
28.
Kristin E. Secan Andrew L. Egel Cynthia S. Tilley 《Journal of applied behavior analysis》1989,22(2):181-196
We conducted an investigation to evaluate the effects of a training strategy for teaching autistic students generalized responses to three forms of wh— questions (what, how, and why). Students were taught, using modeling and reinforcement procedures, to answer questions with magazine pictures as the referents. Each question form was divided into two or more subcomponents reflective of common social usage and was taught within the context of a modified multiple probe design across subcomponents. Following acquisition of each subcomponent, generalization to natural context and storybook questions was assessed; additional probes were conducted to assess responding over time and whether acquisition of responses to questions promoted question-asking skills. Results showed that the picture training procedure was effective in teaching a generalized response to questions for which the relevant cue was visible, whereas specific generalization programming was required for situations in which the relevant cue was not visible. All acquired responses were durable over time. 相似文献
29.
Angela Lipsitz Katherine Kallmeyer Martha Ferguson Andrew Abas 《Journal of applied social psychology》1989,19(13):1057-1067
Two experiments were conducted to see if blood drive attendance could be increased by altering the content of reminder calls. In Experiment 1 college students received either a standard reminder (the place, time, and necessity of eating beforehand) or a commitment-enhancing reminder in which they agreed to be "counted on". Those in the latter condition were significantly more likely (p <.007) to attend a blood drive. Experiment 2 demonstrated that an alternate wording for the commitment-enhancing message was possible; that a verbal response was necessary to ensure the commitment; and that a message enhancing altruism was not as effective. The studies suggest that asking for an additional commitment during a reminder call can appreciably increase blood drive participation rates. 相似文献
30.
Andrew Samuels 《The Journal of analytical psychology》1985,30(4):393-399
H enderson , J oseph L. Cultural Attitudes in Psychological Perspective
C arotenuto , A ldo . The Vertical Labyrinth: Individuation in Jungian Psychology
K ugelmann , R obert . The Windows of Soul: Psychological Physiology of the Human Eye and Primary Glaucoma
D ryden , W indy (ed.). Individual Therapy in Britain
W elch , J ohn . Spiritual Pilgrims: Carl Jung and Teresa of Avila
T omlin , E. W. F. Psyche, Culture and the New Science: The Role of PN 相似文献
C arotenuto , A ldo . The Vertical Labyrinth: Individuation in Jungian Psychology
K ugelmann , R obert . The Windows of Soul: Psychological Physiology of the Human Eye and Primary Glaucoma
D ryden , W indy (ed.). Individual Therapy in Britain
W elch , J ohn . Spiritual Pilgrims: Carl Jung and Teresa of Avila
T omlin , E. W. F. Psyche, Culture and the New Science: The Role of PN 相似文献