全文获取类型
收费全文 | 1057篇 |
免费 | 26篇 |
国内免费 | 1篇 |
出版年
2018年 | 11篇 |
2017年 | 15篇 |
2016年 | 14篇 |
2014年 | 16篇 |
2013年 | 115篇 |
2012年 | 29篇 |
2011年 | 20篇 |
2010年 | 14篇 |
2009年 | 12篇 |
2008年 | 28篇 |
2007年 | 29篇 |
2006年 | 26篇 |
2005年 | 23篇 |
2004年 | 18篇 |
2003年 | 30篇 |
2002年 | 32篇 |
2001年 | 18篇 |
2000年 | 16篇 |
1999年 | 15篇 |
1997年 | 13篇 |
1995年 | 13篇 |
1993年 | 13篇 |
1992年 | 11篇 |
1990年 | 15篇 |
1989年 | 14篇 |
1987年 | 12篇 |
1986年 | 11篇 |
1985年 | 17篇 |
1984年 | 16篇 |
1983年 | 15篇 |
1981年 | 15篇 |
1980年 | 14篇 |
1979年 | 11篇 |
1978年 | 19篇 |
1976年 | 12篇 |
1975年 | 12篇 |
1974年 | 14篇 |
1973年 | 20篇 |
1972年 | 17篇 |
1971年 | 10篇 |
1970年 | 10篇 |
1969年 | 13篇 |
1968年 | 10篇 |
1967年 | 10篇 |
1966年 | 20篇 |
1964年 | 12篇 |
1963年 | 10篇 |
1961年 | 10篇 |
1958年 | 10篇 |
1956年 | 11篇 |
排序方式: 共有1084条查询结果,搜索用时 156 毫秒
261.
262.
Abstract— Previous research has suggested that a person's own name or emotionally charged stimuli automatically "grab" attention, potentially challenging limited-capacity theories of perceptual processing. In this study, subjects were shown two digits surrounding a word and asked to make a speeded judgment about whether the parity of the two digits matched. When the subject's own name was presented on a few scattered trials, responses were markedly slowed (replicating a previous study). However, in a subsequent block of trials in which half the words were the subject's name, the slowing did not occur. The same slowing occurred (but even more fleetingly) when an emotionally charged word was presented between the digits. When the name was embedded among multiple distractor words, it ceased to slow reaction times. The results suggest that perceptual analysis of high-priority stimuli is subject to the usual capacity limitations of other stimuli, but when enough capacity is available for a high-priority stimulus to be perceived, a transient surprise reaction may interrupt ongoing processing. 相似文献
263.
Stewart H 《American journal of psychoanalysis》2003,63(3):207-217
This article compares and contrasts two main aspects of the work of Winnicott and Balint: their theories of infantile development and their theoretical and clinical work on the use of regression as a therapeutic agent. The relationship of their thinking to aspects of the British Independent Group's theories and clinical work is noted vis-à-vis the basic acceptance of classical theory and technique, acknowledgment and use of some of Klein's contributions, the influence of trauma and the external environment on psychic development and psychopathology, the importance of holding and the setting, and the reintegration of previously split off and lost parts of the self. 相似文献
264.
Previous studies combining continuous free recall with a concurrent task have generally shown that concurrent tasks impose
fairly negligible effects on memory retrieval. By contrast, dual-task studies employing either cued recall or semantic retrieval
reveal gross memory impairment and suggest that retrieval is delayed by the centrally demanding phase of the concurrent tasks
(i.e., response selection). To explore this conflict, subjects performed continuous free recall while carrying out a serial-choice#x2014;
response time (RT) task, as in the previous free recall studies. Unlike these previous studies, however, the choice#x2014;RT
task utilized arbitrary stimulus#x2014;response mappings in order to increase the proportion of time devoted to the centrally
demanding response selection phase. Recall total was reduced significantly, and recall latency was slowed substantially. 相似文献
265.
Lisanby SH Morales O Payne N Kwon E Fitzsimons L Luber B Nobler MS Sackeim HA 《CNS spectrums》2003,8(7):529-536
New findings regarding the mechanisms of action of electro-convulsive therapy (ECT) have led to novel developments in treatment technique to further improve this highly effective treatment for major depression. These new approaches include novel placements, optimization of electrical stimulus parameters, and new methods for inducing more targeted seizures(eg, magnetic seizure therapy [MST]). MST is the use of transcranial magnetic stimulation to induce a seizure. Magnetic fields pass through tissue unimpeded, providing more control over the site and extent of stimulation than can be achieved with ECT. This enhanced control represents a means of focusing the treatment on target cortical structures thought to be essential to antidepressant response and reducing spread to medial temporal regions implicated in the cognitive side effects of ECT. MST is at an early stage of development. Preliminary results suggest that MST may have some advantages over ECT in terms of subjective side effects and acute cognitive functioning. Studies designed to address the antidepressant efficacy of MST are underway. As with all attempts to improve convulsive therapy technique, the clinical value of MST will need to be established through controlled clinical trials. This article reviews the experience to date with MST, and places this work in the broader context of other means of optimizing convulsive therapy in the treatment of depression. 相似文献
266.
Whom would you rather help: an acquaintance not responsible for her plight or a responsible sibling?
When 2 persons--an acquaintance who could not have avoided a problem and a close relative who is responsible for her own plight--ask for help, attribution theory and sociobiology conflict about who will receive help. Attribution theorists assume that the nonresponsible acquaintance will be supported, but sociobiologists argue that the responsible sibling will receive help. The authors tested the hypothesis that characteristics of the situation affect which theory better predicts help giving. The results confirmed that in situations that do not affect life and death, a nonresponsible acquaintance would receive more help than a responsible sibling. But in life-or-death situations, inasmuch as the reproductive fitness of the person in need is in danger, a responsible sibling would be supported more than a nonresponsible acquaintance. 相似文献
267.
Harold G. Koenig Linda K. George Patricia Titus Keith G. Meador 《Journal of religion and health》2003,42(4):301-314
Background: Religious and spiritual beliefs and practices are common among medical inpatients, and may impact length of hospital stay (LOS) and other health services (HSU) during hospitalization. Methods: 812 consecutively admitted patients age 50 or over to Duke University Medical Center were assessed. Measures of religiousness and spirituality included religious TV/radio (RTV), self-rated religiousness (SRR), observer-rated spirituality (ORS), and daily spiritual experiences (DSE). The primary outcome was LOS. Results: RTV and SRR predicted longer LOS, whereas ORS and DSE predicted shorter LOS (p 0.05). Effects of RTV onLOS were stronger among women, but explained by worse health status. The effects of DSE on LOS were stronger among non-whites. Among those reporting high DSE, diagnostic tests and total procedures also tended to be less common. Conclusions: Religious activities, attitudes, and spiritual experiences are weak predictors of LOS and HSU during hospitalization. Whether the prediction is positive or negative depends on the religious or spiritual characteristic. 相似文献
268.
31 surveyed physicians perceived that between one-third and two-thirds of patients do not comply with instructions, and that nearly one-third of those who comply do not show optimal treatment response. The physicians expressed concerns about the validity and cost of complementary approaches that might increase medical compliance and enhance treatment response. 相似文献
269.
Rats were exposed to a radial maze containing six black smooth arms and six wire-grid-covered arms and a striped 'exit arm'
in experiment 1. The probability of a black or grid arm being baited (5/6 vs 1/6) with sunflower seeds was associated with
its proximal cue for some rats (the Relevant Arm Cue group) but not for others (the Irrelevant Arm Cue group). All rats could
terminate a trial and receive a highly preferred morsel of apple by entering the exit arm only after having sampled all six
seed-baited arms. Relevant Arm Cue rats usually chose some arms from the more densely baited set before choosing an arm from
the less densely baited set and made fewer reentries than Irrelevant Arm Cue rats. Although such clustered, higher choice
accuracy in the Relevant Arm Cue group corresponds to human clustered, better recall of verbal items from lists hierarchically
organized by categories, these rats did not similarly exhaustively retrieve items (arm locations). That is, when required
to terminate a trial by entering the 'exit' arm for an apple morsel after having sampled all seed-baited arms, both groups
were equally unable to withhold making nonrewarded premature exits. This nonexhaustive foraging search pattern was maintained
in the next two experiments in which the radial maze was reduced to three black and three grid arms along with the striped
'exit' arm and in which black and grid arm cues were paired with number of seeds (eight or one) in an arm for Relevant Arm
Cue rats. Although Relevant Arm Cue rats displayed perfect clustering by entering all eight-seeded arms before a one-seeded
arm, they made more premature exits and reentries into eight-seeded arms in experiment 2 or when forced to enter all eight-seeded
arms in experiment 3 than did Irrelevant Arm Cue rats. These foraging tendencies prevent accurate estimations of the amount
of information (i.e., arm locations) rats can 'chunk'.
Electronic Publication 相似文献
270.
The purpose of this study was to determine if a developmental order exists in the metalinguistic ability of children to make judgments about the form of language while simultaneously attending to a meaningful linguistic context. The stimulus material consisted of a short story into which 20 nonsense lexical items had been substituted. The 20 stimuli were comprised of phonotactically illegal and legal sequences of phonemes. In addition, the lexical items had been positioned to replace either structure or content words within the story. The participants were 90 Caucasian children who were divided into nine age groupings from 4;0 to 12;11. Baseline data were obtained from 10 adults. All subjects were required to respond to the audio-recorded stimuli by pressing a button whenever a nonsense item was perceived. The data were analyzed for both number of correct responses and reaction times. Results revealed a major shift in metalanguage ability occurring between 7 and 8 years of age. The 8- to 12-year-olds responded correctly to more items and at significantly faster rates than the 4- to 7-year-olds. The adults outperformed the children on all tasks, showing that metalanguage development continues beyond childhood. 相似文献