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631.
The “gap effect” refers to the finding that saccadic latencies are typically reduced when the fixation point is removed just prior to the presentation of a target. One explanation for this effect is that the removal of the fixation point causes the disengagement of covert attention and allows for extremely rapid movements of attention (express attentional shifts). However, previous research regarding express attentional shifts has yielded equivocal results. The present study used a variation of a peripheral cueing paradigm with a discrimination task (Experiment 1) and a detection task (Experiment 2) to further examine this issue. The results from eye movement and keypress latencies indicated that there were express attentional shifts with the discrimination task but not in the detection task. This pattern of results may have been due to differences in how attention was allocated between the two tasks. Thus, evidence for express attentional shifts was found, but only under certain conditions. 相似文献
632.
This study examined various hypotheses for facilitation on Wason’s four-card selection task by means of a factorial experiment.
The factors were memory cuing vs. nonmemory cuing content, violation vs. true-false instructions, and verbalization procedure.
The results indicated that memory cuing content may be a necessary and sufficient condition for facilitation, but that the
amount of facilitation is affected by the type of instructions. Verbalization procedure had no effects, but this may have
been due to the subjects’ failure to comply completely with the various verbalization instructions. An explanation of the
results that assumes that content and instructions determine the cognitive processing load of the task and hence the solution
strategies employed is considered.
This study is based on a master’s thesis completed by the first author under the second author’s supervision. 相似文献
633.
To shed light on the notion of enduring individual infant characteristics, convergence of three presumably interrelated measures of infant individuality was examined. Data collected included standardized behavioral assessments of the newborn (NBAS), maternal reports of infant temperament (at 3 and 9 months), and naturalistic observations of infant behavior at 1, 3, and 9 months. Infant temperament reports were significantly stable from 3 to 9 months; observed infant fussiness was significantly stable from 1 to 3 and 3 to 9 months; observed altertness/social responsiveness was not stable over time. Analyses of convergence of neonatal and infant behavior revealed that 9-month infant alertness/social responsiveness was significantly correlated with neonatal habituation. Similar analyses of neonatal behavior and reported temperament revealed that 3-month reported dullness was significantly correlated with neonatal habituation and range of state. At 9 months, temperament ratings of infant fussiness and unpredictability were significantly correlated with autonomic stability; fussiness was also significantly correlated with regulation of state. Finally, no significant relationships were observed between reported temperament and observed infant behavior. These results fail to support a simple notion of enduring individuality in infants over their first year of life. 相似文献
634.
Jay Einhorn 《Behavioral sciences & the law》1986,4(2):119-135
The history of divorce law in England and America shows that child custody decisions have tended to be made on the basis of social biases about the nature of men and women, rather than on the basis of the competence of the individual parents or of the best interests of the children. This article traces the history of divorce law with particular attention to child custody from twelfth century England to modern America. The historical flipflop from paternal custody to maternal custody is documented, and the assumptions underlying the prejudices toward paternal and maternal custody are reviewed and compared. Joint custody, when possible, provides a solution to the custody problem. However, sexual stereotypes provide no substitute for meticulous fact-finding when parents cannot agree. 相似文献
635.
Johnny L. Matson Jay A. Sevin Diane Fridley Steven R. Love 《Journal of applied behavior analysis》1990,23(2):227-233
A time delay procedure was used to increase spontaneous verbalizations of 3 autistic children. Multiple baseline across behaviors designs were used with target responses, selected via a social validation procedure, of two spontaneous responses (“please” and “thank you”) and one verbally prompted response (“you're welcome”). The results indicate gains across target behaviors for all children, with occurrence across other stimuli and settings. These gains were validated socially with 10 adults. Furthermore, increases in appropriate language had no effect on levels of inappropriate speech. 相似文献
636.
A relationship between personality processes and evolution can be seen when behaviors associated with sexual maturation, mating, and parenting are examined. This article stipulates the types of proximal cues implicated in the shaping of personality variables that become important in the development of the individual's reproductive behavior. 相似文献
637.
Ridit analysis is statistical method for comparing ordinal-scale responses. In this paper, the extact variance and asymptotic distribution of the average ridit is developed, including the cases in which the reference group is sampled or the comparison group is finite. The appropriate use and interpretation of ridit analysis is also discussed.The authors wish to thank Andrew Klugh for this support, and the references and David Feigenbaum for their very helpful comments. 相似文献
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