“Our results offer the first evidence that pharmacological manipulation of the human MOR system affects both aesthetic evaluation of and motivation for viewing opposite-sex faces. Continue reading
This is a bit geeky, but look up words you don’t know. It is very mechanical and not infinitely complex. Take Away – Pretty much the g-protein receptors get fried. lol, well, that is pretty geeky
Alcoholism is a disease of chronic relapse, consisting of repeated bouts of excessive intake and abstinence, resulting in withdrawal symptoms that contribute to the resumption of heavy drinking…human alcoholics report increased anxiety and compulsive behaviors during abstinence periods, which correlate with escalated ethanol consumption …Examination of these symptoms in a mouse model of alcohol use disorders showed …escalated ethanol intake during abstinence.
…Dopamine transmission is markedly attenuated after chronic ethanol exposure …A previous study reported reduced dopamine terminal function in the nucleus accumbens (NAc) …suggesting a link between attenuated accumbal function and augmented ethanol intake. As the dopamine system has been implicated as an important regulator of ethanol drinking and anxiety/compulsive- like behaviors, it is possible that dysregulated dopamine transmission may underlie chronic ethanol-induced increases in these behaviors.
…Dopamine transmission in the NAc is regulated by a variety of receptors, including kappa opioid receptors (KORs). Continue reading
What is the origin of individual differences in ideology and personality? According to the parasite stress hypothesis, the structure of a society and the values of individuals within it are both influenced by the prevalence of infectious disease within the society’s geographical region.
High levels of infection threat are associated with more ethnocentric and collectivist social structures and greater adherence to social norms, as well as with socially conservative political ideology and less open but more conscientious personalities.
“He (Tim Snyder) juxtaposes to that a less generally familiar but to historians of Eastern Europe well known fact, namely that these same places were the settings in the 1930s and again in the interval between 1939 and 1941 of enormous carnage carried out at Stalin’s behest, most of it rooted in ethnic mistrust. And then he shows in heart-breaking detail what these two facts had to do with one another. Continue reading