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51.
Masanobu Kuwahara Akio Matsumoto Hiroto Okouchi Koichi Ono 《The Japanese psychological research》2014,56(2):139-152
The present study examined whether bidirectional response‐response relations could be established without direct reinforcement. In AB training for 12 undergraduates, higher rates of touches to a white circle on the monitor screen (A1) produced two stimuli (B1 and B2) on half of the trials, whereas lower rates (A2) produced the same effect on the other half. Choosing one of the two stimuli was reinforced according to the preceding responding (A1B1 and A2B2). In BC training, touching a stimulus (B1 or B2) produced three white circles lined up horizontally on the screen, after which one of two different response sequences to the circles (left‐center‐right, C1 or C2, and right‐center‐left, C2 or C1) were reinforced, depending on the stimulus presented (B1C1 and B2C2). After AB and BC relations were established, 11 of 12 participants showed the emergence of untrained relations (BA, CB, AC, and CA) throughout five test sessions, and the remaining participant showed it in the first four test sessions. These response‐response relations were replicated with five other undergraduates and different trained relations. 相似文献
52.
Mikkelsen Mai Bjørnskov O’Toole Mia Skytte Lyby Marlene Skovgaard Wallot Sebastian Mehlsen Mimi 《Psychonomic bulletin & review》2019,26(4):1440-1448
Psychonomic Bulletin & Review - Interoceptive sensitivity (IS) refers to the ability to accurately perceive visceral afferent information, and several prominent theories of emotions suggest... 相似文献
53.
Grit, passion and perseverance for long-term goals, is strongly related to success in goal attainment even under challenging circumstances. We investigated how grit relates to three aspects of well-being: psychological well-being (PWB), satisfaction with life, and harmony in life. This relationship is approached through organismic valuing theory, which proposes that people are naturally motivated to grow towards their highest potential; grit is proposed as being akin to such growth motivation. In two studies (Study 1 with 196 university students, and Study 2 with 396 non-students), direct and indirect (mediating) effects between grit and well-being were investigated. Sense of coherence (SOC) and authenticity were used as mediators, and gender as a moderator. Grit was positively related to all well-being factors, and SOC and authenticity were significant mediators (complementary for PWB and indirect-only for satisfaction with life and harmony in life). This suggests that grittiness in goal pursuits requires both a sense that the world is coherent and an authentic connection with the self in order for it to fully benefit well-being. No gender moderation was found. 相似文献
54.
Marisa Franco Mia Smith-Bynum 《Identity: An International Journal of Theory and Research》2016,16(3):182-189
African American women’s racial identity is a major determinant for how they interpret the world around them, yet there is little research examining how specific aspects of racial identity are linked with attitudes about an event that has been highly significant for African Americans: the election of President Barack Obama. The present study examines the relationship between African American mothers’ racial identity and their perceived significance of the election of President Barack Obama as an indicator of reduced systemic and actual racism for African Americans, using a sample of 110 African American mothers residing in a Northeastern metropolitan area. Results revealed that racial centrality and assimilation positively predicted perceived significance of President Obama’s election for diminishing racism. Implications and future directions are discussed. 相似文献
55.
As part of a larger research project in Sweden, a qualitative study investigated psychotherapists’ experiences of mother–infant psychoanalysis (MIP). A randomized controlled trial compared two groups of mother–infant dyads with psychological problems. One had received Child Health Center care, and the other received MIP. Previous articles on long‐term effects have found that mothers who had received MIP were less depressed throughout a posttreatment period of 3½ years, and their children showed better global functioning and psychological well‐being. The present study's objectives were to describe the therapist's experiences of MIP and deepen the understanding of the MIP process. Six months after treatment began, all therapists were interviewed. Transcribed interviews with therapists from 10 (of 33 total) MIP treatments were randomly selected and analyzed in detail by thematic analysis. Therapists worked successfully with mother and infant together and found different ways of cooperation during MIP sessions. Therapists reported overall positive experiences; however, in cases where mothers needed more personal attention, it would be important to adapt the method to them. 相似文献
56.
Psychometrika - The asymptotic posterior normality (APN) of the latent variable vector in an item response theory (IRT) model is a crucial argument in IRT modeling approaches. In case of a single... 相似文献
57.
Saito Y Matsumoto M Otani S Yanagawa Y Hiraide S Ishikawa S Kimura S Shimamura K Togashi H 《Neurobiology of learning and memory》2012,97(4):361-369
Recent studies focus on the functional significance of a novel form of synaptic plasticity, low-frequency stimulation (LFS)-induced synaptic potentiation in the hippocampal CA1 area. In the present study, we elucidated dynamic changes in synaptic function in the CA1 field during extinction processes associated with context-dependent fear memory in freely moving rats, with a focus on LFS-induced synaptic plasticity. Synaptic transmission in the CA1 field was transiently depressed during each extinction trial, but synaptic efficacy was gradually enhanced by repeated extinction trials, accompanied by decreases in freezing. On the day following the extinction training, synaptic transmission did not show further changes during extinction retrieval, suggesting that the hippocampal synaptic transmission that underlies extinction processes changes in a phase-dependent manner. The synaptic potentiation produced by extinction training was mimicked by synaptic changes induced by LFS (0.5 Hz) in the group that previously received footshock conditioning. Furthermore, the expression of freezing during re-exposure to footshock box was significantly reduced in the LFS application group in a manner similar to the extinction group. These results suggest that LFS-induced synaptic plasticity may be associated with the extinction processes that underlie context-dependent fear memory. This hypothesis was supported by the fact that synaptic potentiation induced by extinction training did not occur in a juvenile stress model that exhibited extinction deficits. Given the similarity between these electrophysiological and behavioral data, LFS-induced synaptic plasticity may be related to extinction learning, with some aspects of neuronal oscillations, during the acquisition and/or consolidation of extinction memory. 相似文献
58.
Racial/ethnic diversity has become an increasingly important variable in the social sciences. Research from multiple disciplines consistently demonstrates the tremendous impact of ethnic diversity on individuals and organizations. Investigators use a variety of measures, and their choices can affect the conclusions that can be drawn and limit the ability to compare and generalize results across studies effectively. The current article reviews 3 popular approaches to the measurement of diversity: the simplistic majority-minority approach and 2 multiple categories variants, the generalized variance and the lesser used entropy statistic. We discuss the properties of each approach and reject the majority-minority approach. We provide 5 examples using the generalized variance and entropy statistics and illustrate their versatility and flexibility. We urge investigators to adopt these multicategory measures and to use our discussion to determine which measure of diversity is most appropriate given the nature of one's data set and research question. 相似文献
59.
Microexpressions are extremely quick facial expressions of emotion that appear on the face for less than ½ a s. To date, no study has demonstrated that the ability to read them can be trained. We present two studies that do so, as well as evidence for the retention of the training effects. In Study 1 department store employees were randomly assigned to a training or comparison group. The training group had significantly higher scores than the comparison group in microexpression reading accuracy at the end of the training; 2 weeks later the training group had better third-party ratings of social and communicative skills on the job. Study 2 demonstrated that individuals trained in reading microexpressions retained their ability to read them better than a comparison group tested 2–3 weeks after initial training. These results indicated that the ability to read microexpressions can be trained and are retained. 相似文献
60.