Babies know when a cuddle is coming
June 25, 2013 Babies as young as two months know when they are about to be picked up and change their body posture in preparation, according to new research.
Share This:
Professor Vasu Reddy, of the University of Portsmouth, has found most babies aged two to four months understand they are about to be picked up the moment their mothers come towards them with their arms outstretched and that they make their bodies go still and stiff in anticipation, making it easier to be picked up.
This is the first study to examine how babies adjust their posture in anticipation to offset the potentially destabilising effect of being picked up.
Professor Reddy said: "We didn't expect such clear results. From these findings we predict this awareness is likely to be found even earlier, possibly not long after birth.
"The results suggest we need to re-think the way we study infant development because infants seem to be able to understand other people's actions directed towards them earlier than previously thought. Experiments where infants are observers of others' actions may not give us a full picture of their anticipatory abilities."
The findings could also be used as an early indicator of some developmental problems, including autism. It was reported by researchers in 1943 that children with autism don't appear to make preparatory adjustments to being picked up.
The researchers, who included Dr Gabriela Markova of the Czech Academy of Sciences, Prague, and Dr Sebastian Wallot of the University of Aarhus, did two studies, one on 18 babies aged three months, and a second on ten babies aged two to four months old.
In both, babies were placed on a pressure mat which measured their postural adjustments during three phases: As their mothers chatted with their babies; as the mothers opened their arms to pick them up; and as the babies were picked up.
The results revealed infants as young as two months made specific adjustments when their mother stretched her arms out to pick them up. These included extending and stiffening the legs which increases body rigidity and stability, and widening or raising their arms, which helps to create a space for the mother to hold the infant's chest.
Between two and three months of age the babies' gaze moved from mostly looking at their mother's face to often looking at her hands as she stretched her arms out towards them.
The results reveal two important findings -- first, that from as early as two months babies make specific postural adjustments to make it easier to pick them up even before their mother touches them. And second, it appears that babies learn to increase the smoothness and coordination of their movements between two and four months, rather than develop new types of adjustment.
"In other words, they rapidly become more adept at making it easier for parents to pick them up," Professor Reddy said.
The mothers in the study were asked about their babies' physical responses before the tests and some reported their babies stiffened their legs or raised their arms in preparation for being picked up, but video footage watched frame by frame revealed physical adjustments happened to a greater degree and more subtly than mothers had noticed.
The researchers suggest more research now needs to be done to examine the extent to which infants discriminate between different kinds of actions directed at them, between familiar and unfamiliar actions, and how infant anticipation of these actions is influenced by the different maternal styles they each experience.
The research is published in the latest issue of the journal Plos One.
Welcome to SUV System Ltd!
SUV System Ltd is ISO 90012008 Certified electronics distributor with 10 years of experiences.
We have built up long term business relationship with about many companies which are stockers and authorized agents. we have a steady and reliable supply to meet customer's demands to the greatest extent .Confidently, we are able to lower your cost and support your business with our years of professional service.
SUV System Ltd is Electronic Components Distributor Supplies,Find Quality Electronic Components Supplies Products IC(Integrated Circuits),Connectors,Capacitor,Resistors,Diodes,Transistors,LED at Suvsystem.com. Sourcing Other Energy, Environment, Excess Inventory Products from Manufacturers and Suppliers at Suvsystem.com
Electronic Components distributor:http://www.suvsystem.com
Connectors Distributor:http://www.suvsystem.com/l/Connectors-1.html
IC Distributor:http://www.suvsystem.com/l/IC(Integrated-Circuits)-1.html
LED Distributor:http://www.suvsystem.com/l/LED-1.html
Capacitor Distributor:http://www.suvsystem.com/l/Capacitor-1.html
Transistor Distributor:http://www.suvsystem.com/l/Transistors-1.html
Resistor Distributor:http://www.suvsystem.com/l/Resistors-1.html
Diode Distributor:http://www.suvsystem.com/l/Diodes-1.html
SUV System Ltd insists on the managing faith ofsincereness,speciality,foresight, win-win,so we build up stable-relationship customers located all over the world, including the States, Europe, Argentina, UAE, Malaysia, Australia,and India etc
we are focus on the following fields,and hope we can help you.
ATA5744N-TKQY 19 ATA5744N-TKQY ATA5744N-TGSY ATA6822-TGSY ATA6822-TGQY ATA6821-TUSY ATA6821-TUS ATA6821-TUQ ATA6814-PLSW ATA6814-PLQW ATA6664-TAQY ATA6664-EK ATA6663-TAQY ATA6663-EK ATA6662-TAQY19 ATA6662-TAQY 19 ATA6662-TAQY ATA6662-EK ATA6661-TAQJ19 ATA6661-TAQJ 19 ATA6661-TAQJ ATA6661-TAPY ATA6661-EK ATA6660-TAQY19 ATA6660-TAQY 19 ATA6660-TAQY ATA6660-TAQ ATA6660-TAPY 19 ATA6660-TAPY ATA6660-TAP ATA6625-TAQY ATA6625-TAPY ATA6625-EK ATA6624-PGQW ATA6624-PGPW ATA6624-EK ATA6623-TAQY ATA6623-TAPY ATA6623-EK ATA6622-PGQW
http://www.suvsystem.com/a/3200.aspx
没有评论:
发表评论