Rethinking prestige bias

Synthese - Some cultural evolution researchers have argued for the importance of prestige bias as a systematic and widespread social learning bias, that structures human social learning and...     

Influence of intracerebroventricular administration of dopaminergic drugs on morphine state-dependent memory in the step-down passive avoidance test

The effects of dopaminergic drugs on morphine state-dependent memory of passive avoidance task were examined in mice. Pre-training administration of morphine (5mg/kg) led to state-dependent learning with impaired memory retrieval on the test day which was reversed by pre-test administration of the same dose of the opiate. The pre-test intracerebroventricular (i.c.v.) administration of the dopamine D1 receptor agonist (SKF38393), dopamine D2 receptor agonist (quinpirole) and dopamine D2 receptor antagonist (sulpiride) not only reversed the effect of pre-training morphine treatment, but also increased this action of the drug. Furthermore, the pre-test i.c.v. administration of dopamine D1 receptor antagonist (SCH23390) prevented the restoration of memory by morphine. In conclusion, the morphine-induced recovery of memory, on the test day, seems to be induced, at least in part, through dopamine receptors.     

The Relationship Between Religious Beliefs and Quality of Life Among Patients With Multiple Sclerosis

Patients with chronic diseases, such as multiple sclerosis (MS), are prone to emotional distresses and reduction in life quality more than others. This study aimed to assess the relationship between religious beliefs and quality of life among patients with MS. In this study, 145 MS patients completed 36-Item Short-Form Health Survey (SF-36) and the Duke University Religion Index (DUREL) questionnaires. The results indicated that unorganized religious activities were significantly associated with marital status and education level. Besides, internal religion was positively correlated to mental health. However, religious variables were not effective prognostic factors in physical and mental quality of life. Overall, further studies have to be conducted to determine the role of religion in quality of life of MS patients with different religious backgrounds.