Hyperactive kids are just naughty

London: Parents, please note-children labeled as ‘hyperactive’ in school are highly unlikely to be suffering from any disorder-in fact, they are just naughty, researchers have claimed.

A new study in Britain has revealed that only half of the kids suspected of having attention deficit hyperactivity disorder (ADHD) are actually diagnosed with the condition by a mental health expert.

Children with ADHD cannot concentrate on school work or played and are easily distracted forgetful or fail to follow instructions. They are also unduly noisy, restless, often talk excessively and butt in to other’s conversations

According to the researchers, school teachers may be over identifying children with possible ADHD diagnoses. “Naughty children may at some point present symptoms but someone with ADHD has them at all times,” lead author Dr Benjamin Keene was quoted by leading British newspaper the daily telegraph as saying. In their study, based in tower hamlets, 52 kids were referred to the child and adolescent mental health services team with ADHD-like symptoms over the course of one year, of those the researchers found that most did not have ADHD.eventually six were diagnosed with ADHD, the study revealed.

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Birds identify eggs by their colour: study

Melbourne: avians are more intelligent than you ever thought-they use color to identify the eggs of ‘parasite’ birds, such as as cuckoos, from their own and eject them from their nests, a new study has revealed.

Researchers in Australia have found that birds have the ability to recognize small changes, particularly in the ultraviolet wavelengths, which help them in distinguishing between their own eggs and eggs of other birds.

According to lead researcher Dr Mark hauberk of the university of Auckland, “birds have very different visual senses to humans, for example they can see ultraviolet wave-lengths where we cannot.” those birds which parasitically introduce their eggs into the nest of other birds dramatically increase the amount of time and energy needed to Provision the nest. “Our research shows that the peculiar broad spectrum color is vital to recognise their own eggs, and can identify small differences as well as wave-lengths that humans wouldn’t be able to distinguish.” In their study, the researchers introduced eggs into the nests of song thrushes in Australia and range of colours close to the bird’s own eggs.

They found that the birds ejected eggs of different colours from their nests, particularly those with differences in reflecting ultraviolet or short (blue) wave-length light, the biology letters journal reported.

The research was conducted in collaboration with the University of Birmingham in Britain and Palacky University in the Czech Republic.

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