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81.
We recently reported that blockade of dopamine (DA) D2 receptors attenuated deficits in long-term memory retrieval induced by a systemic injection of corticosterone, but the anatomical sites of such interaction were not known. In this study, we investigated whether the DA D2 receptors located in the medial prefrontal cortex (mPFC) may play a role in the impairing effects of glucocorticoids on the memory retrieval process. Young adult male rats were trained in a one trial inhibitory avoidance task (0.5 mA, 3s footshock). On the retention test given 48 h after training, the latency to re-enter the dark compartment and the time spent in light compartment of the apparatus were recorded. Systemically administered corticosterone (1mg/kg) given to rats 30 min before retention testing impaired their memory retrieval. Bilateral microinjections of the DA D2 receptor antagonist sulpiride (10 or 100 ng/0.5 microl per side) into the mPFC 30 min before corticosterone administration attenuated the glucocorticoid-induced impairment of memory retrieval. Furthermore, applied doses of sulpiride alone were ineffective in modulating memory retrieval. These findings indicate that D2 receptors located in the mPFC play an important role in mediating the impairing effects of glucocorticoids on memory retrieval. 相似文献
82.
Using quasi-experimental data, this article examines the relationship between religiosity and prosocial behavior. In contrast to previous studies that identify religious people by how often they attend religious services or by their self-reported religiosity, this study compares the behavior of highly devout students who are preparing to enter the clergy to the behavior of other students in a public goods game and in the dictator game. The results show that religious students were significantly more cooperative in the public goods game and significantly more generous in the dictator game than other students. 相似文献
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The present study investigated the possibility that women's ruminative response style to stressful events is due in part to differential advice that women and men receive from their social support networks. Undergraduates (60 men, 136 women) of various ethnic backgrounds (e.g., 21.4% English, 16.8% West Indian, 12.8% Chinese, 10.7% Italian) indicated the extent to which they would endorse various statements of advice for a stimulus person described as experiencing a negative life event. As predicted, subjects endorsed more ruminative advice for female stimulus persons than for male stimulus persons (p< .02). These findings imply that, since females in stressful situations seem more likely to receive ruminative advice than do their male counterparts, women's greater vulnerability to depressive symptoms may be partly the result of the concomitant dangers of stressful events and potentially harmful advice. 相似文献
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Effects of fasting on visual flicker fusion 总被引:2,自引:0,他引:2
Two experiments are reported which investigated the effects of fasting on visual flicker fusion (VFF). In Exp. 1 the VFF of 40 undergraduate students, 20 men and 20 women, whose mean age was 22.5 yr., was measured in nonfasting conditions 1 to 2 weeks before and in fasting conditions during the Muslim fasting month of Ramadan. In Exp. 2 the VFF of a comparable group of 15 men and 15 women, whose mean age was 23.2 yr., was measured in a different month in both fasting and nonfasting conditions. Subjects were assigned randomly to these two conditions. Analysis shows that fasting reduced VFF significantly in both experiments. This finding indicates that fasting is likely to reduce perceptual sensitivity. The results were explained in terms of fatigue and physical exhaustion effects produced by fasting. 相似文献
88.
Subjects estimated the size and distance of a single electroluminescent disc in the absence of distance cues and without the use of visual comparators. For different groups of Ss the disc subtended a visual angle of 1, 2, 4, or 8 deg. The size estimates varied directly with visual angle and the distance estimates varied inversely with visual angle. These results were considered in relation to the question of whether or not retinal size hasa direct correlate in perceived size. 相似文献
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Ali Eryılmaz 《Journal of religion and health》2018,57(4):1350-1362
The main goal of the present study is to compare male offenders and non-offenders in terms of how they attribute meaning to life and set life goals. The samples were chosen from among offenders (n = 50) and non-offenders (n = 50) who were between ages 19–26. Mixed method was used in this study. The scale of setting life goals and interview form were used to collect data. To analysis of the data, the content analysis technique and t test and were used. Findings of the present study show that offenders tend to have troubles setting life goals when compared to non-offenders. Furthermore, the results of this study could be used in rehabilitating offenders and preventing those at risk of committing criminal acts from doing so. 相似文献