全文获取类型
收费全文 | 1952篇 |
免费 | 75篇 |
出版年
2020年 | 30篇 |
2018年 | 29篇 |
2017年 | 40篇 |
2016年 | 36篇 |
2015年 | 33篇 |
2014年 | 39篇 |
2013年 | 205篇 |
2012年 | 76篇 |
2011年 | 57篇 |
2010年 | 39篇 |
2009年 | 32篇 |
2008年 | 63篇 |
2007年 | 64篇 |
2006年 | 55篇 |
2005年 | 58篇 |
2004年 | 50篇 |
2003年 | 49篇 |
2002年 | 61篇 |
2001年 | 33篇 |
2000年 | 25篇 |
1999年 | 27篇 |
1998年 | 29篇 |
1997年 | 32篇 |
1996年 | 39篇 |
1995年 | 40篇 |
1994年 | 35篇 |
1993年 | 26篇 |
1992年 | 29篇 |
1991年 | 26篇 |
1990年 | 27篇 |
1989年 | 26篇 |
1988年 | 18篇 |
1987年 | 28篇 |
1986年 | 21篇 |
1985年 | 31篇 |
1984年 | 35篇 |
1983年 | 32篇 |
1982年 | 35篇 |
1981年 | 28篇 |
1980年 | 36篇 |
1979年 | 32篇 |
1978年 | 28篇 |
1977年 | 39篇 |
1976年 | 40篇 |
1975年 | 22篇 |
1974年 | 40篇 |
1973年 | 27篇 |
1972年 | 13篇 |
1969年 | 17篇 |
1967年 | 13篇 |
排序方式: 共有2027条查询结果,搜索用时 15 毫秒
981.
Ronald G. Marteniuk 《Journal of motor behavior》2013,45(4):307-316
For each of 75 Ss several estimates of intra-individual variations were calculated for each of 4 motor skills. The reliability of intra-individual variation for these data, estimated from Pearson productmoment correlations, ranged from r = .31 to r = .51 (in all cases p < .05). It was also found that in 3 of the 4 skills, intra-individual variation correlated significantly (r = .36, .54, .55) with mean performance level. Second order partial correlations, holding constant the effect of mean performance level, were then used to estimate the reliability of intravariation. These correlations were statistically significant and ranged from r = .27 to r = .34. When correlations of intra-individual variation were calculated among the four skills it was demonstrated that intra-individual variation was approximately 95 to 100% task specific. 相似文献
982.
Patricia L. Weir Christine L. MacKenzie Ronald G. Marteniuk Sherri L. Cargoe Mardon B. Frazer 《Journal of motor behavior》2013,45(3):192-204
The purpose of these experiments was to determine the effects of object weight and condition of weight presentation on the kinematics of human prehension. Subjects performed reaching and grasping movements to metal dowels whose visible characteristics were similar but whose weight varied (20, 55, 150, 410 g). Movements were performed under two conditions of weight presentation, random (weight unknown) and blocked (weight known). Three-dimensional movements of the thumb, index finger, and wrist were recorded, using a WATSMART system to obtain information regarding the grasp and transport components. The results of the first experiment indicated that object weight and condition of presentation affected the temporal and kinematic measures for both the grasp and transport components. In conjunction with the results of a second experiment, in which time in contact with the dowel was measured, it was shown that the free-motion phase of prehension (i.e., up to object contact) was invariant over the different conditions, however. The changes were observed in the finger-object interaction phase (when subjects applied forces after contact with the dowel), prior to lift-off. These results were interpreted as indicating (a) object weight does not influence the planning and execution of the free-motion phase of prehension and (b) there are at least two motor control phases involved in prehension, one for making contact with the object and the other for finger-object interaction. The changing contributions of visual, kinesthetic, and haptic information during these two phases is discussed. 相似文献
983.
2 groups of 50 Ss practiced a pursuit rotor skill under different schedules of practice. A massed practice (MP) group (40 sec. work, 20 sec. rest) performed just as well as a distributed practice (DP) group (20 sec. work, 20 sec. rest) on the first day of practice. However, after 24 hr. of interpolated rest MP Ss demonstrated significantly greater amounts of learning. A further analysis of the 15 high initial ability and 15 low initial ability Ss from each of the two main groups resulted in no statistical differences among these subgroups in Day 1 performance that could be attributed to the practice schedules; however, a significant Ability Level × Practice Schedule interaction was obtained for Day 2 performance. It was caused by the low ability Ss under MP learning relatively more than the high ability Ss under MP when compared to the two DP groups. Thus learning was seen as being a function not only of schedule of practice but also of initial ability level. 相似文献
984.
985.
Ronald M. Rapee Colin MacLeod Leigh Carpenter Jonathan E. Gaston Jacqueline Frei Lorna Peters Andrew J. Baillie 《Behaviour research and therapy》2013,51(4-5):207-215
ObjectiveThe aim of the current study was to integrate recent developments in the retraining of attentional biases towards threat into a standard cognitive behavioural treatment package for social phobia.Method134 participants (M age – 32.4: 53% female) meeting DSM-IV criteria for social phobia received a 12-week cognitive behavioural treatment program. They were randomly allocated to receive on a daily basis using home practice, either an additional computerised probe procedure designed to train attentional resource allocation away from threat, or a placebo variant of this procedure. Measures included diagnostic severity, social anxiety symptoms, life interference, and depression as well as state anxiety in response to a laboratory social threat.ResultsAt the end of treatment there were no significant differences between groups in attentional bias towards threat or in treatment response (all p's > 0.05). Both groups showed similar and highly significant reductions in diagnostic severity, social anxiety symptoms, depression symptoms, and life interference at post-treatment that was maintained and in most cases increased at 6 month follow-up (uncontrolled effect sizes ranged from d = 0.34 to d = 1.90).ConclusionsThe current results do not indicate that integration of information processing-derived attentional bias modification procedures into standard treatment packages as conducted in this study augments attentional change or enhances treatment efficacy. Further refinement of bias modification techniques, and better methods of integrating them with conventional approaches, may be needed to produce better effects. 相似文献
986.
987.
988.
Burman H. Preston 《International journal of group psychotherapy》2013,63(3):321-330
Contrary to traditional thinking, a review of the recent literature has suggested that bipolar patients can be treated in homogeneous therapy groups in conjunction with concomitant lithium management. Important psychodynamic and interpersonal features are reviewed that have received empirical support and have enhanced our understanding of these patients. Goals for bipolar groups include educating patients on the nature of the disease, helping them learn ways of coping with its symptoms, and encouraging them to discuss relevant psychodynamic and interpersonal issues. To achieve these goals, therapists have used techniques involving education, support, and facilitation of group discussions. Further clinical and empirical work needs to be done to evaluate the effectiveness and process of these bipolar groups, particularly in the inpatient setting. 相似文献
989.
Paul W. Eastwick Brian M. Wilkey Eli J. Finkel Nathaniel M. Lambert Gráinne M. Fitzsimons Preston C. Brown Frank D. Fincham 《Journal of experimental social psychology》2013,49(2):267-271
The social psychological literature and the evolutionary literature on power suggest different routes by which power might inspire romantic desire: the former highlights the appealing actions of the powerful, whereas the latter demonstrates that people desire powerful individuals upon learning of those individuals' powerful status. We predicted that, in an initial face-to-face interaction, both elements must align for the powerful to inspire romantic desire. In a live mixed-sex interaction, participants experienced the most romantic desire for an opposite-sex target who (a) actually possessed power and (b) was perceived by the participant to possess power. This interaction was mediated by observable behavior—the extent to which the target controlled the conversation and was given legitimacy by the group—indicating that the powerful do not behave powerfully around unaccommodating subordinates. Power manipulations implemented in only one person's mind may not approximate how power functions in real social interactions. 相似文献
990.
Jody L. Jensen Klaus Schneider Beverly D. Ulrich Ronald F. Zernicke Esther Thelen 《Journal of motor behavior》2013,45(4):303-312
This is the first of two articles in which we describe how infants adapt their spontaneous leg movements to changes in posture or to elicitation of behaviors by a mechanical treadmill. In this article, we compare the kinematics of kicks produced by 3-month-old infants in three postures, supine, angled (45°), and vertical, and examine the changes in muscular and nonmuscular force contributions to limb trajectory. By manipulating posture we were able to assess the sensitivity of the nascent motor system to changes in the gravitational context. The postural manipulation elicited a distinct behavioral and dynamic effect. In the more upright postures, gravitational resistance to motion at the hip was 4 to 10 times greater than resistance met in the supine posture, necessitating larger muscle torques to drive hip flexion. Kicks produced in the vertical posture showed a reduction in hip joint range of motion and an increase in synchronous joint flexion and extension at the hip and knee. At the same time, hip and knee muscle torques were also more highly correlated in kicks performed in the vertical than in the supine or angled posture. This increased correlation between muscle torques at the hip and knee implicates anatomical and energetic constraints—the intrinsic limb dynamics—in creating coordinated limb behavior out of nonspecific muscle activations. 相似文献