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Disputed signs of consciousness seen in babies’ brains

Infants display neural responses linked to visual awareness by 5 months of age

2:10pm, April 18, 2013

Babies’ brains emit electrical bursts that signal a budding awareness of the visual world by the time they are 5 months old, a new study concludes. But some researchers are skeptical that these neural surges correspond to conscious experience.

From age 5 months to 15 months, the brain begins to develop the ability to register and remember sights, according to the research by cognitive neuroscientist Sid Kouider of École Normale Supérieure in Paris and his colleagues. The researchers showed babies images that included faces flashed increasingly slowly on a screen. They started at a speed so fast that even adults wouldn’t c

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