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161.
Neilands TB Silvera DH Perry JA Richardsen A Holte A 《Scandinavian journal of psychology》2008,49(2):161-168
The Basic Character Inventory (BCI) contains 136 items, 17 lower-order personality factors and three higher-order personality factors derived from psychoanalytic theory: Oral, Obsessive Compulsion, and Hysteria. Previous research that investigated the BCI's psychometric properties examined small, special populations and did not use modern statistical methods to validate the BCI. The present study validates the BCI via confirmatory factor analyses using a large sample of 6,285 Norwegian nursing and teaching students. Reliability, convergent validity, and divergent validity of the BCI were also assessed. Results indicated general support for the original BCI factor structure in a reduced form of the BCI that possesses strong reliability and validity, and is suitable for use in time-limited measurement settings. 相似文献
162.
Roets A Van Hiel A Cornelis I Soetens B 《Personality & social psychology bulletin》2008,34(6):779-792
This study examines the simultaneous effects of need for closure (NFC) and relative cognitive capacity on invested effort and task performance within the integrative analysis framework using behavioral data. Two main results were obtained. First, the authors revealed a significant interaction effect between relative cognitive capacity (manipulated through task difficulty) and NFC (manipulated through time pressure, noise, and fear of invalidity as well as assessed by an individual differences measure) on effort investment. Second, contrary to dispositional NFC, manipulations yielded a "dual effect" because they negatively affected task performance as well as invested effort. The latter result was interpreted as an indication that noise and time pressure manipulations also tax cognitive resources. The two main findings are discussed and the authors go further into the divergences between dispositional and manipulated NFC. 相似文献
163.
Ilse Cornelis Alain Van Hiel Arne Roets Malgorzata Kossowska 《Journal of personality》2009,77(1):51-88
ABSTRACT The present study investigates the commonly found age–conservatism relationship by combining insights from studies on the development of personality and motivated social cognition with findings on the relationships between these factors and conservative beliefs. Based on data collected in Belgium ( N =2,373) and Poland ( N =939), we found the expected linear effect of age on indicators of social-cultural conservatism in Belgium and Poland and the absence of such effects for indicators of economic-hierarchical conservatism. We further demonstrated that these effects of age on indicators of cultural conservatism in both countries were (in part) mediated through the personality factor Openness to Experience and the motivated cognition variable Need for Closure. The consistency of these findings in two countries with a very dissimilar sociopolitical history attests to the importance of the developmental perspective for the study of the relationship between age and conservatism. 相似文献
164.
Tina B. Lonsdorf Almut I. Weike Pernilla Nikamo Martin Schalling Alfons O. Hamm Arne Öhman 《Psychological science》2009,20(2):198-206
ABSTRACT— Pavlovian fear conditioning is a widely used model of the acquisition and extinction of fear. Neural findings suggest that the amygdala is the core structure for fear acquisition, whereas prefrontal cortical areas are given pivotal roles in fear extinction. Forty-eight volunteers participated in a fear-conditioning experiment, which used fear potentiation of the startle reflex as the primary measure to investigate the effect of two genetic polymorphisms (5-HTTLPR and COMTval158met) on conditioning and extinction of fear. The 5-HTTLPR polymorphism, located in the serotonin transporter gene, is associated with amygdala reactivity and neuroticism, whereas the COMTval158met polymorphism, which is located in the gene coding for catechol-O-methyltransferase (COMT), a dopamine-degrading enzyme, affects prefrontal executive functions. Our results show that only carriers of the 5-HTTLPR s allele exhibited conditioned startle potentiation, whereas carriers of the COMT met/met genotype failed to extinguish conditioned fear. These results may have interesting implications for understanding gene-environment interactions in the development and treatment of anxiety disorders. 相似文献
165.
Brådvik L Frank A Hulenvik P Medvedeo A Berglund M 《Suicide & life-threatening behavior》2007,37(4):475-481
Nonfatal heroin overdoses and suicide attempts are both common among heroin addicts, but there is limited knowledge about the association between them. The sample in the present study consisted of 149 regular heroin users in Malmö, Sweden. Out of these 98 had taken an unintentional heroin overdose at some time and 51 had made at least one attempt to commit suicide (but not using heroin). Suicide attempts were significantly more common among those who had taken unintentional overdoses as compared with those who had never taken any overdose (p < 0.01). The more overdoses, the greater the risk of suicide attempt. 相似文献
166.
The present study compared in a Flemish adult sample (N = 480) four recently developed authoritarianism scales as well as the widely used Right‐Wing Authoritarianism (RWA) scale. Results revealed that all these measures were strongly related and that they showed relationships of comparable magnitude with various indicators of right‐wing ideology such as conservatism and racism, as well as with political party preferences. Analyses confirmed the superior fit of a multidimensional model for the scales that are assumed to have an explicit underlying multidimensional structure, but it was also revealed that there was little consensus on what these dimensions exactly mean. Finally, the results indicated serious problems of overlap between cultural conservatism and authoritarianism for some of the scales. Having relied exclusively on an empirical method for comparing the utility of these scales, the use of other criteria for a final assessment of the authoritarianism scales is elaborated upon. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
167.
Two experiments are reported that examine the possibility that exercise selectively influences different types of cognition. To our knowledge, these experiments represent the first attempt to study higher-cognitive processes during exercise. Theoretical thinking was guided by the transient hypofrontality hypothesis. In both experiments, athletes who exercised at a sustained, moderate pace were compared to sedentary controls on two neuropsychological tests, one that is generally regarded as heavily dependent on prefrontal cognition and one that is relatively insensitive to prefrontal operation. Results showed that during exercise performance on tests demanding prefrontal-dependent cognition was impaired, while at the same time, cognitive processes requiring little prefrontal activity were unaffected. 相似文献
168.
Abstract— Research has shown that backward masking is a powerful tool for studying unconscious mental processes. Whereas studies have traditionally presented stimuli using cathode-ray tube (CRT) monitors or mechanical shutters together with slide projectors, recent studies (mainly in functional magnetic resonance imaging, fMRI) have begun to use methods based on liquid crystal displays (LCDs) and thin-film transistor (TFT) technology. However, because of differences in technology, all methods may not be equally suited for masking. When methods were compared for their accuracy in presenting pictures at short durations, LCD and TFT presentations had poor accuracy, but shutter and CRT presentations had better accuracy. Because CRTs interfere with the imaging process in fMRI, we recommend the use of mechanical shutters. However, our results may not generally apply to all displays, so we advise researchers to validate the presentation parameters of their displays. The procedure described here may be useful for that purpose. 相似文献
169.
The cognitive neuroscience of creativity 总被引:1,自引:0,他引:1
Dietrich A 《Psychonomic bulletin & review》2004,11(6):1011-1026
This article outlines a framework of creativity based on functional neuroanatomy. Recent advances in the field of cognitive
neuroscience have identified distinct brain circuits that are involved in specific higher brain functions. To date, these
findings have not been applied to research on creativity. It is proposed that there are four basic types of creative insights,
each mediated by a distinctive neural circuit. By definition, creative insights occur in consciousness. Given the view that
the working memory buffer of the prefrontal cortex holds the content of consciousness, each of the four distinctive neural
loops terminates there. When creativity is the result of deliberate control, as opposed to spontaneous generation, the prefrontal
cortex also instigates the creative process. Both processing modes, deliberate and spontaneous, can guide neural computation
in structures that contribute emotional content and in structures that provide cognitive analysis, yielding the four basic
types of creativity. Supportive evidence from psychological, cognitive, and neuroscientific studies is presented and integrated
in this article. The new theoretical framework systematizes the interaction between knowledge and creative thinking, and how
the nature of this relationship changes as a function of domain and age. Implications for the arts and sciences are briefly
discussed. 相似文献
170.
Carlsson K Petersson KM Lundqvist D Karlsson A Ingvar M Ohman A 《Emotion (Washington, D.C.)》2004,4(4):340-353
Rapid response to danger holds an evolutionary advantage. In this positron emission tomography study, phobics were exposed to masked visual stimuli with timings that either allowed awareness or not of either phobic, fear-relevant (e.g., spiders to snake phobics), or neutral images. When the timing did not permit awareness, the amygdala responded to both phobic and fear-relevant stimuli. With time for more elaborate processing, phobic stimuli resulted in an addition of an affective processing network to the amygdala activity, whereas no activity was found in response to fear-relevant stimuli. Also, right prefrontal areas appeared deactivated, comparing aware phobic and fear-relevant conditions. Thus, a shift from top-down control to an affectively driven system optimized for speed was observed in phobic relative to fear-relevant aware processing. 相似文献