Government communications chief Jean Gross has warned that in-car DVD and computer game systems could adversely affect children's communication skills.
Ms Gross told the Telegraph that watching DVDs and playing video games may hinder the growth of children's vocabulary, much as entertainment systems discourage communication with fellow passengers.
She said: "There's a great belief among some parents that talking will come by itself, but it's not automatic. People feel silly talking to their children before they can talk back but it is important to do so."
Instead, she has urged parents to engage children in traditional in-car games such as 'I Spy'.
Her advice was refuted by road safety charity Brake, however, it agreed that noisy in-car games may distract drivers.
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