Serotonin signaling influences social behavior in both human and nonhuman primates. In humans. variation upstream of the promoter region of the serotonin transporter gene (5-HTTLPR) has recently been shown to influence both behavioral measures of social anxiety and amygdala response to social threats. Here we show that length polymorphisms in 5-HTTLPR predict social reward and punishm... https://www.elphonsolam.com/product-category/balloons-orbz/