Press Esc to close
Wednesday 27 May 2015
News updated at 1:15 PM IST
Weather
Max: 33°C
Min : 22.3°C
In Bengaluru
Sunny day

Baby eyes take longer to process movement

Last updated: 19 July, 2011
Washington, July 19, PTI :

Rapidly changing images may look like a blur to infants as their eyes take 10 times longer than adults to process movement, a new study had found.

Researchers at the University of California, Davis, found that while infants can perceive flicker or movement, they may not be able to identify the individual elements within a moving or changing scene as well as an adult.

“Their visual experience of changes around them is definitely different from that of an adult,” study researcher Faraz Farzin was quoted as saying by Live Science.

They found that the speed limit at which babies can recognise individual moment-to-moment changes is about half a second — about 10 times slower than adults, who can recognise rapid, individual changes that occur 50 to 70 milliseconds or slower.

To determine the speed limit on infants’ visual perception, the researchers monitored the eye movements of a group of 6-5-month-olds as they were shown four flickering squares.
Three squares flickered from black to white and back, and one square flickered white to black, which was intended to draw more attention because it is out of phase with the other squares — the “odd man out.”

Tracking the infants’ eye movements showed that they did not spend more time looking at the odd white-to-black square, suggesting they could not distinguish it as being different, the researchers reported in the journal Psychological Science.  

Specifically, the researchers found the six- and nine-month-olds could differentiate the alternating squares up to a rate of just 0.5 hertz, or one flicker per two seconds; the limit for the 15-month-olds was one hertz, or two flickers per two seconds — which is eight times coarser than the resolution observed in adults who participated in the same flicker experiment.


Go to Top

Photo Gallery
An Indian boy swims in a water body on a hot summer day in New Delhi...

An Indian boy swims in a water body on a hot summer day in New Delhi...

Damaged pickup van and truck after an accident at National Highway in South Dinajpur in West Bengal.

Damaged pickup van and truck after an accident at National Highway in South Dinajpur in West Bengal.

A leopard at Mahatma Gandhi Zoo in Solapur, Maharashtra on Tuesday...

A leopard at Mahatma Gandhi Zoo in Solapur, Maharashtra on Tuesday...

German Defence Minister Ursula von der Leyen inspects a guard of honour at the Indian...

German Defence Minister Ursula von der Leyen inspects a guard of honour at the Indian...

Army personnel in action during an encounter with militants near Line of Control (LoC)...

Army personnel in action during an encounter with militants near Line of Control (LoC)...

Railway workers using the cimex eradicator to cleaning bedbugs in side of train at City...

Railway workers using the cimex eradicator to cleaning bedbugs in side of train at City...

Gujjar community people during their ongoing agitation or reservation at the railway tracks...

Gujjar community people during their ongoing agitation or reservation at the railway tracks...

New age Mahindra 'XUV 500' launch in Mumbai...

New age Mahindra 'XUV 500' launch in Mumbai...

Narendra Modi returns after delivering a speech during the launch of a special television channel...

Narendra Modi returns after delivering a speech during the launch of a special television channel...

National Congress party holds a cut out of Prime Minister Narendra Modi during a protest...

National Congress party holds a cut out of Prime Minister Narendra Modi during a protest...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523