全文获取类型
收费全文 | 3449篇 |
免费 | 142篇 |
国内免费 | 2篇 |
出版年
2023年 | 45篇 |
2022年 | 45篇 |
2021年 | 61篇 |
2020年 | 85篇 |
2019年 | 71篇 |
2018年 | 127篇 |
2017年 | 126篇 |
2016年 | 127篇 |
2015年 | 104篇 |
2014年 | 113篇 |
2013年 | 377篇 |
2012年 | 206篇 |
2011年 | 175篇 |
2010年 | 111篇 |
2009年 | 127篇 |
2008年 | 153篇 |
2007年 | 160篇 |
2006年 | 105篇 |
2005年 | 101篇 |
2004年 | 91篇 |
2003年 | 80篇 |
2002年 | 72篇 |
2001年 | 77篇 |
2000年 | 72篇 |
1999年 | 52篇 |
1998年 | 29篇 |
1997年 | 27篇 |
1996年 | 22篇 |
1995年 | 22篇 |
1994年 | 16篇 |
1993年 | 16篇 |
1992年 | 22篇 |
1991年 | 20篇 |
1990年 | 32篇 |
1989年 | 28篇 |
1988年 | 19篇 |
1987年 | 29篇 |
1986年 | 25篇 |
1985年 | 25篇 |
1984年 | 27篇 |
1983年 | 24篇 |
1981年 | 18篇 |
1979年 | 33篇 |
1975年 | 23篇 |
1974年 | 26篇 |
1973年 | 18篇 |
1972年 | 17篇 |
1971年 | 18篇 |
1970年 | 19篇 |
1968年 | 18篇 |
排序方式: 共有3593条查询结果,搜索用时 31 毫秒
291.
Biagio D’Aniello Gün Refik Semin Alessandra Alterisio Massimo Aria Anna Scandurra 《Animal cognition》2018,21(1):67-78
We report a study examining interspecies emotion transfer via body odors (chemosignals). Do human body odors (chemosignals) produced under emotional conditions of happiness and fear provide information that is detectable by pet dogs (Labrador and Golden retrievers)? The odor samples were collected from the axilla of male donors not involved in the main experiment. The experimental setup involved the co-presence of the dog’s owner, a stranger and the odor dispenser in a space where the dogs could move freely. There were three odor conditions [fear, happiness, and control (no sweat)] to which the dogs were assigned randomly. The dependent variables were the relevant behaviors of the dogs (e.g., approaching, interacting and gazing) directed to the three targets (owner, stranger, sweat dispenser) aside from the dogs’ stress and heart rate indicators. The results indicated with high accuracy that the dogs manifested the predicted behaviors in the three conditions. There were fewer and shorter owner directed behaviors and more stranger directed behaviors when they were in the “happy odor condition” compared to the fear odor and control conditions. In the fear odor condition, they displayed more stressful behaviors. The heart rate data in the control and happy conditions were significantly lower than in the fear condition. Our findings suggest that interspecies emotional communication is facilitated by chemosignals. 相似文献
292.
Dian A. de Vries A. Marthe Möller Marieke S. Wieringa Anniek W. Eigenraam Kirsten Hamelink 《Media Psychology》2018,21(2):222-245
This experiment investigates the emotional consequences of viewing strangers’ positive posts on Instagram. From a social comparison perspective, strangers’ positive posts on social media are expected to negatively affect viewers’ emotions. From an emotional contagion perspective, strangers’ positive posts should positively affect viewers’ emotions. The current lab experiment examines both the social comparison and the emotional contagion perspective while taking individual differences into account. Participants viewed positive, neutral, or no posts of confederates. In support of the social comparison perspective, individuals who tend to compare themselves to others reported lower positive affect if they had viewed positive posts than if they had viewed neutral or no posts. In support of the emotional contagion perspective, individuals who tend not to engage in social comparison reported higher positive affect after viewing positive posts than after viewing neutral or no posts. These findings indicate that individual differences in processing tendencies lead people to respond to social information on social media in opposite ways. 相似文献
293.
Jürgen Schmidt Rihab Laarousi Wolfgang Stolzmann Katja Karrer-Gauß 《Behavior research methods》2018,50(3):1088-1101
In this article, we examine the performance of different eye blink detection algorithms under various constraints. The goal of the present study was to evaluate the performance of an electrooculogram- and camera-based blink detection process in both manually and conditionally automated driving phases. A further comparison between alert and drowsy drivers was performed in order to evaluate the impact of drowsiness on the performance of blink detection algorithms in both driving modes. Data snippets from 14 monotonous manually driven sessions (mean 2 h 46 min) and 16 monotonous conditionally automated driven sessions (mean 2 h 45 min) were used. In addition to comparing two data-sampling frequencies for the electrooculogram measures (50 vs. 25 Hz) and four different signal-processing algorithms for the camera videos, we compared the blink detection performance of 24 reference groups. The analysis of the videos was based on very detailed definitions of eyelid closure events. The correct detection rates for the alert and manual driving phases (maximum 94%) decreased significantly in the drowsy (minus 2% or more) and conditionally automated (minus 9% or more) phases. Blinking behavior is therefore significantly impacted by drowsiness as well as by automated driving, resulting in less accurate blink detection. 相似文献
294.
Corinna M. Perchtold Andreas Fink Christian Rominger Hannelore Weber Vera Loureiro de Assunção Günter Schulter 《Anxiety, stress, and coping》2018,31(2):206-221
Background and objectives: Previous research indicated that more left-lateralized prefrontal activation during cognitive reappraisal efforts was linked to a greater capacity for generating reappraisals, which is a prerequisite for the effective implementation of cognitive reappraisal in everyday life. The present study examined whether the supposedly appropriate brain activation is relevant in terms of more distal outcomes, i.e., chronic stress perception.Design and methods: Prefrontal EEG alpha asymmetry was recorded while female participants were generating reappraisals for stressful events and was correlated with their self-reported chronic stress levels in everyday life (n?=?80).Results: Women showing less left-lateralized brain activity in the ventrolateral prefrontal cortex during cognitive reappraisal efforts reported experiencing more stress in their daily lives. This effect was independent of self-efficacy beliefs in managing negative emotions.Conclusion: These findings underline the practical relevance of individual differences in appropriate brain activation during emotion regulation efforts and the assumedly related basic capacity for the generation of cognitive reappraisals to the feeling of being stressed. Implications include the selection of interventions for the improvement of coping with stress in women in whom the capability for appropriate brain activation during reappraisal efforts may be impaired, e.g., due to depression or old age. 相似文献
295.
Tobias Teismann Thomas Forkmann Julia Brailovskaia Paula Siegmann Heide Glaesmer Jürgen Margraf 《International Journal of Clinical and Health Psychology》2018,18(1):1-7
Background/Objective: Depression and suicide ideation regularly occur together. Yet, little is known about factors that buffer individuals against the development of suicide ideation. The present study investigated, whether positive mental health buffers the association between depression and suicide ideation in a longitudinal study design. Methods: A total of 207 German students (70.3% female; age: M = 26.04, SD = 5.33) were assessed at a baseline evaluation and again twelve months later. Data were collected using self-report questionnaires. Linear hierarchical regression analysis was used to analyze the data. Positive mental health was considered to moderate the impact of depression on suicide ideation – controlling for age and gender. Results: Positive mental health was shown to moderate the impact of depression on suicide ideation: in those students who reported higher levels of positive mental health, depression severity showed no association with suicide ideation over time. Conclusion: Positive mental health seems to confer resilience and should be taken into account, when assessing individuals for suicide risk. 相似文献
296.
297.
Artyom Zinchenko Markus Conci Hermann J. Müller Thomas Geyer 《Attention, perception & psychophysics》2018,80(5):1096-1109
Repeatedly searching through invariant spatial arrangements in visual search displays leads to the buildup of memory about these displays (contextual-cueing effect). In the present study, we investigate (1) whether contextual cueing is influenced by global statistical properties of the task and, if so, (2) whether these properties increase the overall strength (asymptotic level) or the temporal development (speed) of learning. Experiment 1a served as baseline against which we tested the effects of increased or decreased proportions of repeated relative to nonrepeated displays (Experiments 1b and 1c, respectively), thus manipulating the global statistical properties of search environments. Importantly, probability variations were achieved by manipulating the number of nonrepeated (baseline) displays so as to equate the total number of repeated displays across experiments. In Experiment 1d, repeated and nonrepeated displays were presented in longer streaks of trials, thus establishing a stable environment of sequences of repeated displays. Our results showed that the buildup of contextual cueing was expedited in the statistically rich Experiments 1b and 1d, relative to the baseline Experiment 1a. Further, contextual cueing was entirely absent when repeated displays occurred in the minority of trials (Experiment 1c). Together, these findings suggest that contextual cueing is modulated by observers’ assumptions about the reliability of search environments. 相似文献
298.
Sapana R. Patel Michael G. Wheaton Erik Andersson Christian Rück Andrew B. Schmidt Christopher N. La Lima Hanga Galfavy Olivia Pascucci Robert W. Myers Lisa B. Dixon Helen Blair Simpson 《Behavior Therapy》2018,49(4):631-641
Cognitive-behavioral therapy (CBT), consisting of exposure and response prevention (EX/RP), is both efficacious and preferred by patients with obsessive–compulsive disorder (OCD), yet few receive this treatment in practice. This study describes the implementation of an Internet-based CBT program (ICBT) developed in Sweden in individuals seeking OCD treatment in New York. After translating and adapting the Swedish ICBT for OCD, we conducted an open trial with 40 adults with OCD. Using the RE-AIM implementation science framework, we assessed the acceptability, feasibility, and effectiveness of ICBT. The Yale–Brown Obsessive Compulsive Scale (Y-BOCS) was the primary outcome measure. Of 40 enrolled, 28 participants completed the 10-week ICBT. In the intent-to-treat sample (N = 40), Y-BOCS scores decreased significantly over time (F = 28.12, df = 2, 49, p < . 001). Depressive severity (F = 5.87, df = 2, 48, p < . 001), and quality of life (F = 12.34, df = 2, 48, p < . 001) also improved. Sensitivity analyses among treatment completers (N = 28) confirmed the intent-to-treat results, with a large effect size for Y-BOCS change (Cohen’s d = 1.38). ICBT took less time to implement than face-to face EX/RP and participants were very to mostly satisfied with ICBT. On a par with results in Sweden, the adapted ICBT program reduced OCD and depressive symptoms and improved quality of life among individuals with moderate to severe OCD. Given its acceptability and feasibility, ICBT deserves further study as a way to increase access to CBT for OCD in the United States. 相似文献
299.
300.
Ece Yazla Mehmet Emrah Karadere Ferit Kerim Küçükler Çağatay Karşıdağ Leman İnanç Elif Kankoç Melda Dönertaş Emre Demir 《Journal of religion and health》2018,57(3):1010-1019
We aimed to investigate the relationship of religious beliefs and forgiveness in diabetic patients with various sociodemographic characteristics, emotional problems and glycaemic control. The study comprises 100 patients diagnosed with type 2 DM. We used a data collection form, the Scale of Forgiveness and Religiosity (SFR), Problem Areas in Diabetes Scale (PAID), Beck Depression Inventory (BDI), State-Trait Anxiety Inventory (STAI) and the Audit of Diabetes-Dependent Quality of Life (ADDQoL). We also recorded blood glucose and HbA1c test results. A statistically significant relationship was determined only between the scores of the STAI-I and the religious belief scales (r = 0.198, p = 0.049). A statistically significant negative relationship was determined between the forgiveness scale points and the BDI (r = 0.326, p = 0.001), the STAI-II (r = 0.308, p = 0.002) and PAID (r = 0.313, p = 0.001) and a positive correlation with ADDQoL (r = 0.284, p = 0.004). To conclude, forgiveness by patient himself or others reduced the emotional problems which were experienced related to diabetes by reducing stress levels and could increase quality of life. 相似文献