HOME >> BIOLOGY >> NEWS
Social imitation in neonatal monkeys

control conditions, and smacked their lips far more often while watching researchers smacking theirs. (Watch an infant imitating mouth opening at DOI: 10.1371/journal.pbio.0040302.sv001.) By day 7, the monkeys tended to decrease lip smacking when humans performed the gesture, and by two weeks, all imitative behavior stopped.

Infant rhesus monkeys, these results suggest, have a narrow imitation window that opens three days after birth, when they can reproduce human tongue protrusion and lip smacking. This imitation period is much longer in humans (two to three months) and chimps (about two months). It's possible that rhesus babies show more varied and prolonged imitative behavior in response to mom or other monkeys than to human experimenters, who may not provide the most relevant biological cues. But this narrow window does comport with the development schedule of rhesus monkeys, which is much shorter than that of humans and chimps.

Many questions remain about the neural mechanisms of neonatal imitation. The researchers argue that their results support a resonance mechanism linked to mirror neurons, which have recently been identified while monkeys observe others' lip smacking and tongue protrusion. In this model, observing human mouth gestures directly activates mirror neurons in the monkeys' brain, ultimately leading to a replication of the gesture.

Human babies can imitate an adult's facial gesture a day after seeing it, which may help them identify individuals. For rhesus monkeys, lip smacking (which often alternates with tongue protrusion) accompanies grooming sessions and signals affiliation--an important social cue for a species that is often described as "despotic and nepotistic." Picking up these social gestures early in life may well facilitate the animal's early social relations (primarily with the mother) and assimilation into the social fabric of the group, providing a mechanism for distinguishing friend from foe. It will
'"/>

Contact: Natalie Bouaravong
press@plos.org
415-568-3445
Public Library of Science
4-Sep-2006


Page: 1 2 3

Related biology news :

1. Social tolerance allows bonobos to outperform chimpanzees on a cooperative task
2. Social factors not hormones cause PMS, post-natal depression and menopausal stress
3. NIH Celebrates a Decade of Discovery in Behavioral and Social Sciences Research
4. Sociality of sweat bees evolved simultaneously during climate change
5. Social stress in mice is controlled by genetic pathway, researchers find
6. Social learning in noncolonial insects?
7. Social amoeba sheds light on communication in human brain
8. Social stress boosts immune systems flu-fighting abilities
9. Institute for OneWorld Health awarded Skoll Foundations Social Entrepreneurship Award
10. Experiment suggests limitations to carbon dioxide tree banking
11. Potassium limitation, ammonium toxicity and amino acid excretion in yeast

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Social imitation neonatal monkeys

(Date:8/29/2014)... of the Tibetan plateau -- the largest topographic anomaly ... both its profound effect on climate and its reflection ... GSA Bulletin , Katharine Huntington and colleagues employ a ... modern and fossil snail shells to investigate the uplift ... , Views range widely on the timing of surface ...
(Date:8/28/2014)... of bacterial culprits that may drive inflammatory bowel diseases ... patients, own intestinal immune responses as a guide. , ... Cell . , Trillions of bacteria exist within ... in the development and progression of IBD. Yet it,s ... affect a person,s susceptibility to IBD and its potential ...
(Date:8/28/2014)... E-cigarettes are healthier for your neighbors than traditional ... according to a new study from USC. , ... overall 10-fold decrease in exposure to harmful particles, ... of exposure to some harmful metals in second-hand ... , While tobacco smoke contains high levels of ...
Breaking Biology News(10 mins):Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7Yale study identifies possible bacterial drivers of IBD 2Second-hand e-cig smoke compared to regular cigarette smoke 2
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
(Date:8/28/2014)... 28, 2014  Next month, executives from clinical trial marketing ... events beginning with Patient-Centered Clinical Trials 2014 , to ... Boston , September 4-5. Patient recruitment experts Bonnie ... Fleishman will share insights on the benefits of employing ... tactics – from media to mobile apps – can be ...
(Date:8/28/2014)... Washington, USA (PRWEB) August 27, 2014 ... next month for SPIE Laser Damage 2014 ... optical materials for high-power lasers will run 14-17 September. ... society for optics and photonics . , The premier ... for understanding laser damage to optical materials will engage ...
(Date:8/28/2014)... NY (PRWEB) August 28, 2014 Whitehouse ... its long term partnership with PTI Inspection Systems ... clients with state of the art leak testing method ... the art instruments currently available. As part of this ... High Voltage Leak Detection Instrument developed and ...
Breaking Biology Technology:BBK Worldwide Leads Sessions at Key September Events 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 3Whitehouse Labs Renews Partnership with PTI Inspection Systems 2Whitehouse Labs Renews Partnership with PTI Inspection Systems 3
Cached News: