全文获取类型
收费全文 | 29269篇 |
免费 | 1183篇 |
国内免费 | 16篇 |
专业分类
30468篇 |
出版年
2020年 | 327篇 |
2019年 | 469篇 |
2018年 | 605篇 |
2017年 | 569篇 |
2016年 | 622篇 |
2015年 | 430篇 |
2014年 | 596篇 |
2013年 | 2755篇 |
2012年 | 1021篇 |
2011年 | 1100篇 |
2010年 | 659篇 |
2009年 | 707篇 |
2008年 | 959篇 |
2007年 | 972篇 |
2006年 | 968篇 |
2005年 | 834篇 |
2004年 | 818篇 |
2003年 | 814篇 |
2002年 | 794篇 |
2001年 | 686篇 |
2000年 | 725篇 |
1999年 | 547篇 |
1998年 | 391篇 |
1997年 | 361篇 |
1996年 | 355篇 |
1995年 | 325篇 |
1994年 | 295篇 |
1993年 | 288篇 |
1992年 | 411篇 |
1991年 | 428篇 |
1990年 | 425篇 |
1989年 | 388篇 |
1988年 | 352篇 |
1987年 | 349篇 |
1986年 | 365篇 |
1985年 | 413篇 |
1984年 | 344篇 |
1983年 | 339篇 |
1982年 | 280篇 |
1981年 | 287篇 |
1980年 | 273篇 |
1979年 | 352篇 |
1978年 | 329篇 |
1977年 | 257篇 |
1975年 | 309篇 |
1974年 | 343篇 |
1973年 | 348篇 |
1972年 | 278篇 |
1968年 | 276篇 |
1967年 | 265篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
A right-handed patient, with two left hemisphere lesions, a small one in the prefrontal lobe and a larger one in the temporal, presents an unusual syndrome: a massive deficit for oral language (expression and comprehension) contrasting with a fairly good preservation of written language (expression and comprehension). The processing of isolated words and sentences has been extensively tested with repetition and dictation tasks. The patient performs rather well with nouns, verbs, and adjectives, poorly with adverbs and function words, and completely fails with nonsense words. A remarkable feature of his repetition is the frequency of semantic paraphasias. Thus, this patient exhibits a behavior rather similar to deep dyslexia, hence the possible label "deep dysphasia." The paper presents a "preunderstanding" hypothesis to account for such behaviors. 相似文献
993.
Most dichotic listening experiments permit subjects to deploy attention in any way they choose. We argue that this adds uncontrolled variance to the observed right-ear advantage. In the first experiment, more robust laterality effects were obtained in an identification task with focused than with divided attention. Such differences were not found in the second experiment, when a detection procedure was used. Virtually all the laterality effect observed in the second study could be attributed to subjects who were biased attenders, in the sense that they exhibited more intrusions from the right ear to the left than vice versa. However, rather than indicating that laterality effects are simply attentional bias, this effect can be attributed to an asymmetry of perceptual discrimination. 相似文献
994.
Language comprehension tasks involving pronoun coreference were administered to a group of demented patients, a group of patients with cardiac disease, and groups of normal elderly persons and young adults. Pronoun coreference was constrained by either lexical, syntactic, or contextual cues. No differences were found between old and young subjects for any task. While the demented patients were impaired on all tasks, the cardiac patients were specifically impaired in the inferential processing of context. 相似文献
995.
David Raffe 《British Journal of Guidance & Counselling》1983,11(1):21-34
More than 40% of a sample of less-qualified Scottish school-leavers, surveyed in 1979, left their first jobs early in their occupational careers. Although most of these left voluntarily, further analysis suggests that their instability was generated more by occupational than by personal factors: it was mainly the product of unstable jobs rather than of unstable workers. Many of the young people who left their first jobs subsequently became unemployed; their chances of finding new employment depended on personal factors more than on their earlier occupational experiences. There was considerable occupational mobility among those who found new jobs. 相似文献
996.
David Navon Baruch Margalit 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1983,35(3):497-512
In visual identification, is visual attention attracted to more informative elements, i.e. to elements which are more critical for identification? This question was investigated by having subjects detect some visual probes while performing a primary task that involved identification. The probes were located in the neighbourhood of highly or poorly informative parts of the identified stimuli. Three experiments that followed this rationale were conducted. In Experiment I, it was found that when subjects searched for a target letter in lines of identical background letters, they detected more dots near the feature that distinguished between the target and the background letters. In Experiment 11, it was found that native Hebrew-speaking subjects detected more lines above a letter that distinguished between two English words. Experiment III showed that the effect was reduced but did not vanish when spatial uncertainty was introduced. On the whole, the data are interpreted as suggesting that more attention may indeed be directed to informative regions, and that this effect cannot be solely attributed to retinal factors. 相似文献
997.
David L. Robinson 《Personality and individual differences》1983,4(5):535-541
This article is a response to Paisey's (1983, this issue, pp. 527–534) critique of reports which describe how transmission characteristics of the diffuse thalamocortical system relate to personality, intelligence and cognitive style (Robinson, 1982a, Robinson, 1982b). Detailed consideration of Paisey's objections leads to the conclusion that they fall into three major categories. First, there are ‘straw men’ that derive from a misrepresentation of theoretical arguments. Secondly, there are objections which relate to methodological considerations but lack substance. Finally, there are criticisms that arise from Paisey's mistaken application of statistical methods. 相似文献
998.
Counselling methods involving progressive relaxation and hypnosis are sometimes regarded as being mysterious and alarmingly innovatory, particularly within the context of the secondary-school system. The implications for counselling practice of the use of such methods are considered. Some ways in which they have been used to help young people of secondary-school age are outlined. A number of illustrative case-studies are given, and a relatively unsuccessful case-study is included. 相似文献
999.
A group of adult first-degree relatives of schizophrenics were compared with a control sample of neurotics' relatives on the EPQ, an earlier version of the Eysenck P scale, and on three specially-constructed scales of ‘psychoticism’ (STA, STB and S), derived from a consideration of the clinical symptomatology of schizophrenia and of the ‘borderline syndromes’. Overall differences, in a predictable direction, were confined to the EPQ P scale where schizophrenics' relatives had significantly higher scores, though further analysis suggested that this was due partly to the raised scores of males and partly to very low P-scores seen in male neurotics' relatives. Scores on the STA, measuring schizophrenic ‘symptoms’, were very low in schizophrenics' relatives, due, it was argued, to extremely defensive responding in that group. Results are also reported for two psychophysiological measures, forearm EMG and skin conductance. Here marked group differences were observed, schizophrenics' relatives having significantly higher mean EMG and significantly lower mean skin conductance. This unusual pattern of response was especially evident in a small subgroup of schizophrenics' relatives whose personality profiles tended to differ in the predictable direction, towards greater ‘psychoticism’. The psychophysiological data were highly consistent with other results from our laboratory demonstrating a ‘dissociation’ between different measures of ‘arousal’ in high-P normal subjects and in psychotic patients and it was concluded that measures based on such a conception of the biological basis of schizophrenia offer considerable promise as high-risk indicators of psychopathology. 相似文献
1000.
F. Hassanyeh 《Personality and individual differences》1983,4(6):695-697
In a comparison of psychiatric inpatients and medical controls parental loss in childhood was not a differentiating factor. Psychiatric inpatients, however, had more disturbance in their home background.In the psychiatric group a disturbed childhood background was associated, on the Eysenck Personality Questionnaire, with abnormal scoring on P in both sexes, and N in males. There was, however, no specific association with psychiatric diagnosis. 相似文献