Abstract:
:This study investigated the role of the endogenous opioid system in maternal and affiliative behavior of group-living rhesus macaque (Macaca mulatta) mothers with a history of abusive parenting. Eighteen mothers received an injection of the opioid antagonist naltrexone or saline for 5 days per week for the first 4 weeks of the infant's life. After treatment, mother-infant pairs were focally observed. Naltrexone did not significantly affect infant abuse or other measures of maternal behavior. Naltrexone increased the amount of grooming received by mothers from other group members and reduced the mothers' rate of displacement activities such as scratching, yawning, and self-grooming. These results concur with previous primate studies in suggesting that opioids mediate the rewarding effects of receiving grooming and affect anxiety-related behaviors.
journal_name
Behav Neuroscijournal_title
Behavioral neuroscienceauthors
Graves FC,Wallen K,Maestripieri Ddoi
10.1037//0735-7044.116.3.489subject
Has Abstractpub_date
2002-06-01 00:00:00pages
489-93issue
3eissn
0735-7044issn
1939-0084journal_volume
116pub_type
杂志文章abstract::An acoustic stimulus previously paired with footshock elicits stereotyped increases in arterial pressure and heart rate and induces freezing behavior in freely behaving rats. Although the arterial pressure and freezing responses differ between groups given paired and random presentations of the tone and shock, the inc...
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