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11.
The purpose of this clinical experiment was to investigate the manipulability of a Factor II avoidance response (arm movement). The substantive hypothesis under test was that its suppression would be enhanced by repeated punishment sessions. During the first of nine therapy sessions response-contingent negative stimulation was not delivered. In the next five, after a base-rate period, “wrong” was made consequent upon the target response. In each of these sessions the suppression of arm movement was apparent. However, the magnitude of the suppression decreased from session to session. Evidently, the continued use of punishment did not enhance suppression. Because of this finding procedural changes were introduced in the next three therapy sessions. Verbal praise was added as a consequence of increasingly stringent omission criteria and three consecutive units of praise led to time-out from the reportedly fatiguing task of continuous speech. A marked reduction and then complete extinction resulted. Moreover, learning was evidenced since the frequency of arm movement lessened in the base-rate period of each session. 相似文献
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Adam Reeves 《Attention, perception & psychophysics》1980,28(2):118-124
Observers viewed briefly presented target dot patterns, either at low contrast without a mask (no mask, or NM) or at high contrast and followed by a long-lasting patterned mask (backward masking, or BM). Experiment 1 demonstrated independent processing of NM target dots but limited capacity processing of BM target dots. Experiments 2 and 3 showed that visual images may radically change sensitivity (d′) in BM but not in NM. Results suggest that d′ is reduced if the image suppresses dots relevant for the detection task, but that d′ is raised if the image suppresses dots that compete for processing with those the observer must detect. 相似文献
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The effects of instructional set (become aroused or suppress arousal), stimulus modality (videotape, audiotape, slides, free fantasy) and stimulus content (paraphilic or non-paraphilic) on sexual arousal, as measured by penile plethysmograph, of six different groups of paraphilics, pedophiles, rapists, exhibitionists, homosexuals, sado-masochists and fetishists, were determined. The results showed significant main effects of instructional set and of stimulus modality (videotape was clearly more arousing) as well as several complex interactions of diagnostic group with the other independent variables. 相似文献
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The Federal Trade Commission (1978) has expressed concern about the direct and indirect effects that commercial food advertisements have on children and families. Based on these concerns, they suggested banning all advertising aimed at young children. The present experiment was designed within the context of concern about the influence of television food advertising on parent-child interactions. It was predicted that mothers whose children viewed a television program with embedded food advertisements would display more control strategies and more power assertion while grocery shopping than mothers of children who were not exposed to advertisements. The results corroborated this hypothesis and, in addition, revealed that children who viewed the food advertisements attempted to influence their mothers' consumerism more than children who did not view the food advertisements. These results were discussed in terms of the importance of considering how television-viewing indirectly influences the quality of parent-child interactions. 相似文献
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Edward B. Blanchard Stephen T. Miller Gene G. Abel Mary R. Haynes Rebecca Wicker 《Journal of applied behavior analysis》1979,12(1):99-109
Direct biofeedback of blood pressure was compared with frontal EMG biofeedback and with self-instructed relaxation for the treatment of essential hypertension in a controlled group outcome study. Patients were followed up for four months after the end of treatment. Generalization of treatment effects was assessed through pre- and posttreatment measurements of blood pressure under clinical conditions in a physician's office. There were no significant reductions in diastolic blood pressure. The systolic blood pressure (SBP) of the patients receiving blood pressure biofeedback decreased 8.1 mm mercury (p = 0.07) and the SBP of the patients in the relaxation condition decreased 9.5 mm mercury (p = 0.05). In the generalization measures, there were significant reductions in SBP for the relaxation group. The results are discussed in terms of the general lack of replicability within the area of biofeedback treatment of hypertension. 相似文献
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Monocular acquisition and interocular transfer of a horizontal-vertical discrimination were measured in 12 male albino guinea pigs with unilateral lesions of the striate cortex, and in 6 sham-operated controls. In accordance with electrophysiological and anatomical findings, the animals learned readily using the contralateral fibers, while the ipsilateral fibers were found to be incapable of mediating either acquisition, or retention, of the discrimination. The control animals learned readily, but showed incomplete transfer. 相似文献
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