全文获取类型
收费全文 | 1799篇 |
免费 | 110篇 |
国内免费 | 1篇 |
出版年
2023年 | 18篇 |
2022年 | 17篇 |
2021年 | 20篇 |
2020年 | 41篇 |
2019年 | 62篇 |
2018年 | 79篇 |
2017年 | 59篇 |
2016年 | 83篇 |
2015年 | 49篇 |
2014年 | 55篇 |
2013年 | 223篇 |
2012年 | 84篇 |
2011年 | 86篇 |
2010年 | 55篇 |
2009年 | 79篇 |
2008年 | 61篇 |
2007年 | 77篇 |
2006年 | 57篇 |
2005年 | 59篇 |
2004年 | 61篇 |
2003年 | 57篇 |
2002年 | 55篇 |
2001年 | 29篇 |
2000年 | 24篇 |
1999年 | 22篇 |
1998年 | 16篇 |
1997年 | 19篇 |
1996年 | 17篇 |
1995年 | 20篇 |
1994年 | 17篇 |
1993年 | 15篇 |
1992年 | 18篇 |
1991年 | 14篇 |
1990年 | 13篇 |
1989年 | 15篇 |
1988年 | 16篇 |
1987年 | 13篇 |
1985年 | 18篇 |
1984年 | 12篇 |
1983年 | 19篇 |
1982年 | 13篇 |
1981年 | 16篇 |
1980年 | 13篇 |
1979年 | 13篇 |
1978年 | 11篇 |
1977年 | 10篇 |
1976年 | 7篇 |
1975年 | 8篇 |
1973年 | 11篇 |
1966年 | 8篇 |
排序方式: 共有1910条查询结果,搜索用时 31 毫秒
921.
922.
923.
Self-regulation is a key construct in children's healthy and adaptive development. In this chapter, the authors situate self-regulation in a theoretical context that describes its underlying components that are most important for early school success: flexible attention, working memory, and inhibitory control. The authors review evidence that supports substantive links between these aspects of self-regulation and academic achievement in young children. They also discuss methodological challenges in reliably and validly assessing these skills (involving measures that are biased, are not applicable across broad age ranges, or triangulated) and describe some recent advances in measures of self-regulation (involving the NIH Toolbox or the Head-Toes-Knees-Shoulders assessment) that are reliable, ecologically valid, and predictive of children's school achievement. 相似文献
924.
Cripwell C 《The International journal of psycho-analysis》2011,92(1):117-133
In this paper the author explores the clinical significance of the presence of a depressed internal object in a patient with marked obsessional features, dominating the patient's internal world and restricting relations in external life. After discussing important aspects of the contribution of Freud and later writers to the study of obsessional neurosis, the author provides clinical material that shows the patient's tormented relationship to a feared depressed object that was manifested in the transference. Developing her argument, the author suggests that if the analyst does not fully grasp the primitive anxieties of the underlying state of mind she can be prone to enter into an aggressive enactment with the patient's sadistic superego. This kind of enactment may arouse excitement and triumph in the patient, but actually confirms his doubts and fears about the capacity of his object to contain him. 相似文献
925.
Hardeman W Michie S Kinmonth AL Sutton S;ProActive project team 《Psychology & health》2011,26(7):899-914
Effects of behaviour change on cognitions are rarely examined within the Theory of Planned Behaviour. We tested whether increases in physical activity resulted in more positive beliefs about further change among a cohort of sedentary adults participating in a behavioural intervention trial (ProActive). At baseline, 6 and 12 months, 365 adults completed questionnaires assessing physical activity and cognitions about becoming more active over the coming year. Objective activity was assessed at baseline and 12 months. Participants reporting larger increases in activity were no more positive about making further increases than those reporting less behaviour change (p-values>0.05). Participants with larger increases in objective activity reported weaker perceived control (β=-0.342; p=0.001) and more negative instrumental attitudes (β=-0.230; p=0.017) at 12 months. Participants may have felt that they had changed enough or measures of perceived success may be more sensitive to behaviour change. Alternatively, long measurement intervals may have missed immediate cognitive and affective consequences of behaviour change, or such effects may require participants to consistently self-monitor or receive feedback on performance. Future studies could test the effect of such techniques on physical activity and a wider range of cognitive, affective and physiological consequences, using more frequent measurement intervals. 相似文献
926.
Postnatal debriefing is offered by 78% of maternity services in the UK despite little evidence from randomised controlled trials (RCTs) that it is effective. RCTs in this area have applied debriefing as a prophylactic to all or high risk women, rather than as a treatment for women who request it. This pragmatic trial therefore evaluated existing postnatal debriefing services that provide debriefing as a treatment for women who request it. Forty-six women who met criterion A for posttraumatic stress disorder (PTSD) and requested debriefing 1.3–72.2 months (median 16 weeks) postpartum completed measures of depression, PTSD, support and negative appraisals of the birth before and one month after debriefing. Women were compared with others who gave birth in the same hospitals during the same time period (n = 34), who met criterion A for PTSD but had not requested debriefing. Results showed PTSD symptoms reduced over time in both groups but greater decreases were observed in women who attended debriefing. Debriefing also led to reduction in negative appraisals but did not affect symptoms of depression. Therefore, results suggest providing debriefing as a treatment to women who request or are referred to it may help to reduce symptoms of PTSD. 相似文献
927.
Repeated checking has been demonstrated to lead to reductions in memory confidence in several previous studies using student and clinical samples. This process of reduced confidence in memory and detail for memory, are thought to arise from the inhibition of perceptual processing that develops during repeated checking. Our research investigated whether reduced memory confidence from repeated checking could be attenuated through the use of novel stimuli during the repeated checking task. Three groups were generated through random assignment of 65 undergraduate students. As seen in previous research, individuals who repeatedly checked a stimulus (a virtual stovetop) showed reduced memory confidence, vividness, and detail, when compared with individuals who repeatedly checked a different stimulus. A third group in which the colour of the repeatedly-checked stovetop changed every five trials showed no significant decline in memory confidence between the pre-test and post-test. Results suggest that increased memory distrust can be ameliorated through the use of stimuli with characteristics that are novel and distinctive. Findings are discussed in the context of the existing model of repeated checking and memory confidence, and implications for treatment methods are presented. 相似文献
928.
This study examines French-learning infants’ sensitivity to grammatical non-adjacent dependencies involving subject-verb agreement (e.g., le/les garçons lit/lisent ‘the boy(s) read(s)’) where number is audible on both the determiner of the subject DP and the agreeing verb, and the dependency is spanning across two syntactic phrases. A further particularity of this subsystem of French subject-verb agreement is that number marking on the verb is phonologically highly irregular. Despite the challenge, the HPP results for 24- and 18-month-olds demonstrate knowledge of both number dependencies: between the singular determiner le and the non-adjacent singular verbal forms and between the plural determiner les and the non-adjacent plural verbal forms. A control experiment suggests that the infants are responding to known verb forms, not phonological regularities. Given the paucity of such forms in the adult input documented through a corpus study, these results are interpreted as evidence that 18-month-olds have the ability to extract complex patterns across a range of morphophonologically inconsistent and infrequent items in natural language. 相似文献
929.
Coles CD Goldstein FC Lynch ME Chen X Kable JA Johnson KC Hu X 《Brain and cognition》2011,75(1):67-77
The impact of prenatal alcohol exposure on memory and brain development was investigated in 92 African-American, young adults who were first identified in the prenatal period. Three groups (Control, n=26; Alcohol-related Neurodevelopmental Disorder, n=36; and Dysmorphic, n=30) were imaged using structural MRI with brain volume calculated for multiple regions of interest. Memory was measured using the Verbal Selective Reminding Memory Test and its nonverbal counterpart, the Nonverbal Selective Reminding Memory Test, which each yielding measures of learning and recall. For both Verbal and Nonverbal Recall and Slope, linear trends were observed demonstrating a spectrum of deficits associated with prenatal alcohol exposure. Dysmorphic individuals performed significantly poorer than unexposed controls on 5 of 6 memory outcomes. Alcohol-exposed individuals demonstrated significantly lower total brain volume than controls, as well as lower volume in a number of specific regions including hippocampus. Mediation analyses indicated that memory performance associated with effects of prenatal alcohol exposure was mediated from dysmorphic severity through hippocampal volume, particularly right hippocampus. These results indicate that the association between the physical effects of prenatal alcohol exposure and deficits in memory are mediated by volumetric reduction in specific brain regions. 相似文献
930.
The aim of this study was to identify factors associated with repeated suicide attempts among criminal justice clients examined for substance abuse using the Addiction Severity Index. Among suicide attempters (n=1,404), repeaters (two or more attempts, n=770) were compared to nonrepeaters. In logistic regression, repetition was associated with younger age, opioid analgesics, somatic medication, overdose, maternal psychiatric problems, delirium tremens, cognitive problems, and violent behavior. As in other settings, factors associated with repetition differed from those associated with suicide attempts in general. In this setting, substance use complications and cognitive problems were connected to repetition and should be addressed in risk assessments. 相似文献