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51.
Emerging adults share the positive events in their lives with their friends, a process that is related to higher levels of happiness when they perceive their friends’ responses as more positive and less negative. What might explain this association? The four studies (N = 2997) in this research tested the proposal that positive friendship experiences mediate the relationship between perceived responses to capitalization attempts (PRCA) and happiness. Study 1 showed that same-sex friendship quality mediated the relationship between PRCA and happiness. Study 2 supported the model for cross-sex friendships. Study 3 tested the generalizability of the model for the immediate social network of emerging adults and showed that the model was only applicable to best friendships. Study 4 documented that satisfaction of basic psychological needs in a same-sex friendship was another mediator of the PRCA-happiness link. Although the friendship experiences and PRCA scores of women were higher compared to men in every study, the associations of PRCA with friendship experiences and happiness were generally similar and the model was supported for both men and women. The implications of the findings were discussed and suggestions for future research were provided. 相似文献
52.
O'Donnell BF Potts GF Nestor PG Stylianopoulos KC Shenton ME McCarley RW 《Journal of abnormal psychology》2002,111(4):620-625
Pathways within the visual system can be distinguished on the basis of selectivity for low or high spatial frequencies. Spatial frequency discrimination was evaluated in 17 medicated male patients with schizophrenia and 19 male control subjects. Subjects were required to discriminate whether pairs of high contrast, sinusoidally modulated gratings were the same or different in spatial frequency. Accuracy performance was compared at high, medium, and low spatial frequencies on tasks matched for control performance. Patients showed a greater performance decrement of 12% on low as compared with 4% on high spatial frequencies. These findings suggest a disturbance of right hemisphere mechanisms involved in spatial perception and attention in schizophrenia. 相似文献
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54.
Phillippa Lally Cornelia H. M. van Jaarsveld Henry W. W. Potts Jane Wardle 《European journal of social psychology》2010,40(6):998-1009
To investigate the process of habit formation in everyday life, 96 volunteers chose an eating, drinking or activity behaviour to carry out daily in the same context (for example ‘after breakfast’) for 12 weeks. They completed the self‐report habit index (SRHI) each day and recorded whether they carried out the behaviour. The majority (82) of participants provided sufficient data for analysis, and increases in automaticity (calculated with a sub‐set of SRHI items) were examined over the study period. Nonlinear regressions fitted an asymptotic curve to each individual's automaticity scores over the 84 days. The model fitted for 62 individuals, of whom 39 showed a good fit. Performing the behaviour more consistently was associated with better model fit. The time it took participants to reach 95% of their asymptote of automaticity ranged from 18 to 254 days; indicating considerable variation in how long it takes people to reach their limit of automaticity and highlighting that it can take a very long time. Missing one opportunity to perform the behaviour did not materially affect the habit formation process. With repetition of a behaviour in a consistent context, automaticity increases following an asymptotic curve which can be modelled at the individual level. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
55.
A simple epidural cannula for use with small animals is described. 相似文献
56.
Abstract An experiment was conducted to examine the effects of levels of naturally occurring dysphoria and elaborative encoding on recall. Previous research has indicated that the facilitative effects of elaborative encoding on recall are reduced by the induction of negative moods in laboratory settings. However, the effects of endogenous dysphoria on recall are less clear. In the present study, 82 subjects from a college population were categorised as dysphoria or nondysphoric on the basis of two self-report measures. They were then presented with sentences in both elaborated and nonelaborated form, and recall for target words embedded in the sentences was assessed. Results demonstrated that nondysphoric individuals benefited from elaborative encoding in recall performance, whereas dysphoric individuals did not. Results are discussed in terms of Ellis and Ashbrook's (1988) resource allocation model of depression. 相似文献