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71.
Susan E. Morgan Jenny K. Miller Lily A. Arasaratnam 《Journal of applied social psychology》2003,33(4):693-715
While little is known about African Americans’ attitudes and knowledge about organ donation, even less is known about how African Americans’ attitudes, values, and beliefs affect their behavior and behavioral intentions regarding organ donation; or how African Americans’ views are similar to or different from those of European Americans. Adults working 2 sites of a national corporation were randomly selected to complete a survey about organ donation willingness, intention to sign an organ donor card, knowledge and attitudes toward organ donation, and level of altruism. Results indicate that African Americans differ significantly from Whites on several individual attitude and knowledge items. However, the basic relationship between knowledge, attitudes, values, and behaviors regarding organ donation between the 2 groups appears the same. Furthermore, these results indicate that future organ donation promotion campaigns must focus on increasing basic knowledge and countering myths about organ donation for both populations. 相似文献
72.
When a shape defined by a set of dots plotted along its contour is presented in a sequence of frames within the boundaries of a slit, and in each frame only one dot (featureless frame) or two dots (feature frame) are displayed, a whole moving dotted shape is perceived. Masking techniques and psychophysical measures have been used to show that a dynamic random-dot mask interferes with shape identification, provided the interframe interval is greater than about 15 ms, and there are no stimulus features for recognition in individual frames. A similar pattern of results was obtained when the observer had only to detect the movement of a single dot or a pair of dots against a dynamic-noise background. It is concluded that the visual system can resolve the correspondence problem in both apparent movement (one moving dot) and aperture viewing (featureless-frame condition) by extracting motion before the extraction of features in each frame. However, the results also show that where feature identification in each frame is possible, it can also be used to identify the moving targets. 相似文献
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The Psychological Record - Selectionist theory in psychology conceptualizes behavior as a dynamic phenomenon subject to a variation and selection process similar to that characterizing biological... 相似文献
75.
W G Morgan 《Behaviour research and therapy》1974,12(3):255-257
Behavior therapists have speculated about the relationship between social fears or social anxieties and lack of assertive behavior. Wolpe (1958) perhaps most clearly suggested such a relationship. “If he [the patient] has been ineffectual in such situations—unable, for instance, to return a faulty garment—I explain how unadaptive fears are at the bottom of this ineffectualness. … p. 116.” Wolpe further assumed that engaging in assertive behavior reciprocally inhibited fear in these same social situations and that assertive responses can be programmed for use in overcoming these fears.In later writings (Wolpe. 1969; Wolpe and Lazarus, 1966) Wolpe seems to have broadened his position concerning the cause of non-assertive behavior. Specifically, he now allows that an individual also may be non-assertive, “… not because of anxiety but because they have never had the opportunity of acquiring the necessary habits. p. 40” (Wolpe and Lazarus, 1966). For these individuals direct efforts in assertive training such as behavior rehearsal, operant conditioning or direct instruction are in order. For these individuals whose lack of assertiveness is due to a ‘phobic reaction’ or strong extrinsic fears, systematic desensitization is recommended in addition to assertive training.Despite this apparent change in position, the intuitively appealing notion that the more socially fearful an individual is the more non-assertive he is likely to be has not received the empirical attention it deserves. Rathus (1973) seems to have provided some indirect evidence pertaining to the relationship between social fears and assertiveness. In the context of evaluating the efficacy of an assertive training method he administered both the 100-item Temple Fear Survey Inventory (TFSI) (Braun and Reynolds, 1969) and the Rathus Assertiveness Schedule (RAS) (Rathus, 1973) to groups of female students receiving either assertive training, a placebo treatment or no treatment. He found that at post-test the assertive training group scored significantly higher than either the placebo or no treatment groups on the RAS and that there were no significant differences in post-test Full Scale TSFI Scores. Fear of Social Criticism Factor Scores or Fear of Social Incompetence Factor Scores although in each case the mean changes toward less fear were greater for the group receiving assertive training. This finding gives little support to the reciprocal relationship between social fears and assertiveness. What is needed is a direct determination of the degree to which social fears and assertiveness are related in a sizeable sample of subjects. 相似文献
76.
It has been shown that, contrary to current opinion, digits do not confuse arbitrarily and that similar patterns of confusion are observed in memory and auditory recognition tasks. Two alternative measures of stimulus similarity are compared. 相似文献
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79.
Byron J.T. Morgan 《Journal of mathematical psychology》1974,11(2):107-123
80.
M.J. Morgan 《Learning and motivation》1974,5(3):352-368
Rats were given a choice in a two-compartment box between response-dependent and response-independent schedules of food presentation. In general, the response-independent schedule was preferred, but the preference was not exclusive and considerable amounts of time were spent on the “work” (response-dependent) side. Food deprivation caused an increased preference for the response-independent schedule when the schedules were fixed, but not when they were variable. Addition of a signal to the work side, indicating the availability of reinforcement, increased preference for that side. In general, the relative numbers of reinforcements obtained on the response-independent side exceeded the relative time spent there; when the relative reinforcements were equated by adding delays to the response-independent side, indifference between the schedules resulted. Latencies of food collection were higher on the response-independent side than on the lever side, and it is suggested that this gives a clue to the factors maintaining “work” in this situation. 相似文献