--- Ursula Stange <Ursula@xxxxxxxxxx> wrote: > Along with the bad parental behaviour model, and the physical and mental > suffering, the little ones also seem to suffer chemical changes that > pre-dispose them to repeat the behaviours. A triple whammy...it's a > wonder that we do as well as we do as a species. The article centres on the following:- "Dario Maestripieri at the University of Chicago in Illinois, US, and colleagues found that baby rhesus monkeys that endured high rates of maternal rejection and mild abuse in their first month of life produced less of the brain chemical serotonin. Low levels of serotonin are associated with anxiety and depression and impulsive aggression in both humans and monkeys." Extrapolating from this to our species is possible but it is clear we are dealing with "rejection and mild abuse" rather than sexual abuse or severe physical abuse such as happens to human children. The extrapolation there, and the explanation for perpetuation, might be more problematic. The article seems to me ambivalent on the nature/nurture debate. That is, the result obtained is consistent with:- a) mothers with a genetic disposition towards "mild abuse" pass on this genetic disposition which is mediated through lower serotonin/higher agression (which may themselves be the product of genetic disposition) [cf. the heritability of aggression, depression etc.] b) without bringing in "genetic disposition" or heritability as the explanation as per (a), mothers who engage in "mild abuse" acculturate their offspring to abuse which is then perpetuated on their offspring, such perpetuation being mediated through lower serotonin/higher aggression. Donal ___________________________________________________________ Try the all-new Yahoo! Mail. "The New Version is radically easier to use" ? The Wall Street Journal http://uk.docs.yahoo.com/nowyoucan.html ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html