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161.
Myopic regret avoidance: Feedback avoidance and learning in repeated decision making 总被引:3,自引:0,他引:3
Decision makers can become trapped by myopic regret avoidance in which rejecting feedback to avoid short-term outcome regret (regret associated with counterfactual outcome comparisons) leads to reduced learning and greater long-term regret over continuing poor decisions. In a series of laboratory experiments involving repeated choices among uncertain monetary prospects, participants primed with outcome regret tended to decline feedback, learned the task slowly or not at all, and performed poorly. This pattern was reversed when decision makers were primed with self-blame regret (regret over an unjustified decision). Further, in a final experiment in which task learning was unnecessary, feedback was more often rejected in the self-blame regret condition than in the outcome regret condition. We discuss the findings in terms of a distinction between two regret components, one associated with outcome evaluation, the other with the justifiability of the decision process used in making the choice. 相似文献
162.
163.
Previous work indicates that action-control processes influence perceptual processes: The identification probability of a left- or right-pointing arrow is reduced when it appears during the execution of a compatible left-right-key press (Müsseler & Hommel, in press). The present study addresses the question of whether this effect would also be observed in a detection task—that is, with judgments that do not require discriminating between left- and right-pointing arrows. Indeed, we found comparable effects in both the identification task and the detection task. This outcome is interpreted within a commoncoding framework, which holds that stimulus processing and action control operate on the same codes. 相似文献
164.
E E Filsinger J J Braun W C Monte D E Linder 《Journal of comparative psychology (Washington, D.C. : 1983)》1984,98(2):219-222
Previous studies have suggested that the pig sex pheromone 5 alpha-androst-16-en-3-one may function as a human sex pheromone. Two hundred male and female college students were assigned to one of four odor conditions (androstenone, methyl anthranilate, skatole, and a no-odor control) and were asked to rate photographs of a male stimulus and to rate their own mood in the presence of each odorant. There was a significant overall sex by treatment condition interaction. Men in the androstenone condition rated the stimulus male as more passive, and women in the androstenone condition rated themselves as less sexy; these effects were specific to the androstenone condition. 相似文献
165.
Ten nonaphasic left cerebrovascular accident (CVA) patients, 12 right CVA patients, and 16 normals were matched for age, education, lesion sizes, and postonset intervals; all were right handed. One task consisted of 36 sentences connoting one of six primary emotions (joy, sadness, fear, surprise, disgust, anger) presented binaurally with a neutral emotional tone. Subjects were required to point to the appropriate emotion name on a vertically arranged list. A second task consisted of the same 36 sentences voiced emotionally by humming with a closed mouth, presented binaurally, and requiring the same response as for the preceding task. A third task consisted of 18 of the sentences spoken with concordant emotional tone and the remaining 18 sentences spoken with discordant emotional tone, presented binaurally and requiring pointing to the word "SAME" or "DIFFERENT" arrayed vertically. The right hemisphere (RH) patients were significantly impaired, relative to the left hemisphere (LH) patients and normals, on the pure prosody task (2) and on the emotional concordance task (3), the latter effect being significant only for mismatch categorization. The LH patients performed (nonsignificantly) less well than the RH patients and normals on the verbal contextual task (1). Performances on the three tasks were not significantly correlated in the patient groups. It was concluded that the RH probably dominates for phonetic discrimination of vowel trains (fundamental frequency and/or single vowel or multivowel contour) and that the RH probably dominates for certain forms of selective attention in the verbal domain perhaps involving simultaneous mismatch treatment of ongoing sentence-level, distracting, complementary, verbal processes. Comparison of similar right and left, cortical (frontoparietal), and subcortical (capsule and basal ganglia) lesions suggested, but did not prove, that the RH pure prosody impairment is cortical whereas the RH tonal-semantic mismatch categorization impairment involves subcortical as well as cortical contributions. 相似文献
166.
Henry I. Braun Ph.D. Douglas H. Jones Donald B. Rubin Dorothy T. Thayer 《Psychometrika》1983,48(2):171-181
Empirical Bayes methods are shown to provide a practical alternative to standard least squares methods in fitting high dimensional models to sparse data. An example concerning prediction bias in educational testing is presented as an illustration.The authors would like to thank the referees for several useful comments.The analysis of the data discussed in this report was part of a study funded jointly by the Graduate Management Admission Council and Educational Testing Service. 相似文献
167.
Attentional capacity is undifferentiated: concurrent discrimination of form, color, and motion 总被引:2,自引:0,他引:2
We report a series of experiments on the concurrent discrimination of form, color, and motion attributes. All tasks involved joint discrimination of attributes, and positions and were highly demanding of attention. We quantified interference between concurrent discriminations by establishing the attention-operating characteristic. Interference was indistinguishable for similar and dissimilar task combinations (form-form, color-color, motion-motion, and color-form, color-motion, motion-color, and motion-form, respectively). These results suggest strongly that different visual discriminations draw on the same attentional capacity--in other words, that the capacity of visual attention is undifferentiated. 相似文献
168.
Bettina Gtz-Marchand Jochen Gtz Martin Irle 《European journal of social psychology》1974,4(2):201-228
Two central hypotheses of the original version of the theory of cognitive dissonance (Festinger, 1957) (1) that dissonance is to be conceived of as a primary drive and (2) that in order to reduce dissonance less resistant cognitions will be changed more than highly resistant ones led to hypotheses which were confirmed by two experiments. In Experiment I, a 2 × 3 factorial design, order and familiarity of dissonance reduction modes were manipulated. After receiving a dissonant information the subjects were offered a relatively low and a relatively high resistant cognition for dissonance reduction, each being placed first (series I, high-low resistance) or last (series II, low-high resistance) respectively. Subjects did (known) or did not (unknown) read these modes before reacting to them. Under the unknown condition dissonance will be reduced more with a specific mode if it is placed first than last. With known reduction modes the order of presentation does not have an effect. Under series I condition the first-placed, higher-resistant cognition will be changed more in the unknown condition than in the known condition. Under the series II condition the first-placed, lower-resistant cognition will be changed equally in the known and unknown condition. In short, the higher-resistant cognition will be changed more, only when it is placed first and when the following modes are not known. Two explanations for these results are possible: (1) The more dissonance is reduced by changing a more or a less resistant congnition, the less further reduction is necessary; (2) dissonance will be reduced in an internally consistent way. Experiment II excluded the first explanation. Subjects were allowed to revise their original way of reducing dissonance. First, subjects in one condition received series I unknown and subjects in the other condition received series II unknown. Reacting to the dissonance reduction modes the second time, there was more revision when the high-resistant congition was placed first (series 1 revision) than when placed last (series II revision). These results support the hypothesis that dissonance reduction by changing a less-resistant congnition more and changing a high-resistant one less is preferred. Implications of the results of the two experments for the stability of dissonance reduction, the method and interpretation of dissonance experiments are discussed. 相似文献
169.
Jochen Schaefer 《Theoretical medicine and bioethics》1980,1(2):155-176
Coronary by-pass surgery has been performed in hundreds of thousands of patients in the last 15 years with a high standard of technical and surgical perfection. The indications for this kind of surgery, however, are still controversial because in spite of many retrospective and several prospective studies it cannot be proven convincingly that in a given patient this surgical procedure will prolong life or prevent myocardial infarction. The present attempt to analyze the causes for this controversy shows that the main reasons for this uncertainty lie: (a) in the enigma of the underlying (ischemic heart) disease itself, which is supposed to lend itself to surgical therapy; (b) in the inadequate methods available up until now for characterizing the state of the disease, its probable course, and its pathogenesis; and (c) in the professional group interests which have a momentum of their own. 相似文献
170.
The increase in reported cases of Multiple Personality Disorder underscores a great need to differentiate clearly this from other psychiatric disorders and from simulation of Multiple Personality Disorder. Two sets of Rorschach signs have been advanced as clinical markers by their developers, namely Barach and also Wagner, Allison, and Wagner. As the Wagner signs are prevalent in much of the research on Rorschach responses in Multiple Personality Disorder, the purpose of the present study was to evaluate these signs using Wagner's administration and the resulting Rorschach protocols of 16 Multiple Personality Disorder patients and 16 psychiatric controls. Analysis indicated that this system was deficient in correctly classifying these 32 protocols. A new marker, the Splitting Response, emerged, however, which was more useful. This response, in combination with at least one Dissociative response, produced an accuracy rate of 94%. These new criteria may be useful aids in the detection of Multiple Personality Disorder from Rorschach protocols. Replication is urged. 相似文献