We wanted to know whether and when babies might discover the importance of a talker’s mouth. So, in one study in my lab, we showed videos of talking faces to babies of different ages and tracked their attention by using an eye-tracking device. We discovered that babies begin lip-reading at around 8 months of age. Crucially, the onset of lip-reading at this age corresponds with the onset of canonical babbling, suggesting that babies begin lip-reading because they become interested in speech and language. By lip-reading, babies now gain access to visual speech cues which, as Janet Werker and her colleagues at the University of British Columbia have shown, are clearly perceptible to them. So, the lip-reading now enables babies to see the visible speech cues that they need to figure out which face goes with which voice. Of course, babies cannot access visible speech cues if others are wearing masks.
Ivor Cummins aka the Fat Emperor – gives James the lowdown on why you can’t trust anything our governments tell us about Covid-19. If you want the facts on Coronavirus – how deadly is it? do lockdowns and masks work? how does it compare with previous pandemics? – you’ve come to the right place
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Lecture by Marc Van Ranst, Belgian Flu Commissioner, at the ESWI/Chatham House Influenza Pandemic Preparedness Stakeholders Conference on 22 January 2019.
Judging from the content of the lecture, this could be alternatively titled, One voice, one message: How to work with the media to mislead the public.
In the audience is Jonathan Van-Tam, Deputy Chief Medical Officer for England.
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