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211.
Stanton Newman Peter Smith Tom Treasure Philip Joseph Peter Ell Michael Harrison 《Current Psychology》1987,6(2):115-124
This study examines a series of coronary artery bypass patients (CABS) for neuropsychological and regional cerebral blood
flow (RCBF) changes at 8 days and 8 weeks post surgery. Seventy-three percent were found to have moderate or severe neuropsychological
deficits at 8 days post operation and 37% at 8 weeks post surgery. A comparison group of major vascular and thoracic surgery
patients was also found to have a significant proportion of neuropsychological deficit following surgery. The RCBF assessments
indicated a significant drop in mean RCBF at 8 days post surgery in the coronary artery bypass group which did not persist
to 8 weeks. The comparison group showed no changes in RCBF following surgery. The findings suggest different patterns of recovery
and origins of the neuropsychological deficit in the two groups and emphasize the need for appropriate control groups in studies
examining the cortical effects of extracorporeal circulation.
In addition, the project received generous support from the special trustees of the Middlesex Hospital. 相似文献
212.
A naturally occurring experiment of the effects of two dosage levels of phenobarbitol on aggressive behaviors in a program of required relaxation is described. A required relaxation program was initiated as a consequence for throwing and hitting by a 13-year-old developmentally disabled male resident of an institutional cottage. The resident had been receiving 50 mg of phenobarbitol twice per day to control seizure activity for two years prior to the introduction of this program. Aggressive behavior decreased from an average of 7.2 incidents a day during baseline to 1.7 per day after six weeks of the required relaxation program. Following several reported seizures, medical staff increased phenobarbitol dosage to 100 mg twice per day and hitting behavior increased beyond baseline levels. After five weeks at this dosage, medication was returned to 50 mg twice a day and hitting behavior returned quickly to the lower intervention levels, while seizure activity remained stable. All observations of behavior were collected during unstructured and regularly occurring events of the individual's daily life. These data suggested that changes in medication influenced observed changes in behavior. 相似文献
213.
A fully automated psychiatric diagnostic system is outlined that would rely on picture-preference items rather than verbal ones and that would involve a tailored approach rather than conventional “brute-strength” testing. The conditions under which such a system can diagnose patients in a way that might arouse their interest and cooperation are discussed. These include a set of diagnostic categories (perhaps a subset from DSM-III), availability of a single-frame video disk unit allowing random access to each frame, a microprocessor system with a memory capacity of about 32,000 bytes, known base rates of the population of interest, and known probabilities of a particular response to the items for each diagnostic category. Some futuristic extensions of the proposed system are suggested. 相似文献
214.
This study investigated a wide range of communicative hand/arm gestures of 4-year-old males when interacting with their mothers. The types of gesture categories observed were in keeping with the predicted encoding ability of this aged child. Pantomimic and deictic gestures were observed in significantly greater numbers than semantic modifying and relational gestures. Although it was found that the mothers' gestural usage reflected the type of gesture categories seen in the children's group, no correlation was found between gesture usage of individual mother-child pairs. 相似文献
215.
Tom Cox 《Quarterly journal of experimental psychology (2006)》1974,26(3):387-394
Rats were trained and tested on an avoidance task in a shuttle box. The change in the performance of the control rats over two sessions was found to be a U-shaped function of the interval between the sessions. The change in performance of rats injected with physostigmine prior to the second session was also found to be a U-shaped function of the intersession interval, although the drug was shown to impair avoidance behaviour. These results are consistent with those of Hamburg (1967) and of Biederman (1970), and support the general contention that cholinergic mechanisms in the brain are involved in the control of avoidance and escape behaviour in the rat. They do not, however, necessarily support the hypothesis advanced by Deutsch (1969, 1971) to describe a biochemical basis of learning and memory, especially if it is used to explain the effects of cholinesterase inhibitors on avoidance behaviour in the shurtlebox. 相似文献
216.
217.
An experiment was conducted to assess the effects of an ethnic slur on evaluations of a targeted minority group member by those who overheard the slur. White subjects plus four confederates participated in a study ostensibly concerned with debating skills. Two of the confederates, one of whom was black, were always picked to engage in a debate which the others were to evaluate. The black debator either won or lost the debate. After the debate, one confederate-evaluator criticized the black in a manner that either did or did not involve an ethnic slur; in a control condition, no such comment was made. Based on the notion that ethnic slurs activate negative schemata regarding members of the targeted minority group, it was predicted that when the black debator lost the debate, the ethnic slur would lead to lower evaluations of his skill. This hypothesis was supported. Theoretical and practical implications of the findings were discussed. 相似文献
218.
Tom R. Tyler Kenneth A. Rasinski Kathleen M. McGraw 《Journal of applied social psychology》1985,15(8):700-725
Recent public opinion polls have suggested that there is a striking lack of public support for national political leaders and institutions. The two studies discussed in this paper explore why public evaluations of political leaders and institutions are low. In particular, they examine the role of perceived injustice in creating dislike for and distrust of leaders and institutions. This focus upon justice is contrasted with the more traditional focus upon the level of outcomes received from the political system and upon congruence in citizen-leader policy preferences. The results strongly support a focus upon justice by showing that judgments of injustice exercise an influence upon leadership evaluations and in stitutional endorsements which is independent of beliefs about the level of outcomes the political system is providing to citizens or of public support for government policies. In fact, both studies suggest that judgments of justice or injustice have more influence upon the endorsement of political leaders and institutions than do outcome-related concerns. 相似文献
219.
220.