Chinese people have faster eye movements

Apr 08 2014, 21:18 IST
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Therefore in terms of eye movement patterns, Chinese ethnicity was more of a factor than culture. (Reuters) Therefore in terms of eye movement patterns, Chinese ethnicity was more of a factor than culture. (Reuters)
SummaryChinese have faster eye movements than people of other origins, owing to ethnicity rather than their culture, a new study suggests.

Chinese have faster eye movements than people of other origins, owing to ethnicity rather than their culture, a new study suggests.

New research from University of Liverpool scientists has cast doubt on the theory that neurological behaviour is a product of culture in people of Chinese origin.

Scientists tested three groups - students from mainland China, British people with Chinese parents and white British people - to see how quickly their eyes reacted to dots appearing in the periphery of their vision.

These rapid eye movements, known as saccades, were timed in all the participants to see which of them were capable of making high numbers of express saccades Ė particularly fast responses which begin a tenth of a second after a target appears.

The findings show that similar numbers of the British Chinese and mainland Chinese participants made high numbers express saccades, with the white British participants made far fewer.

Culturally the British Chinese participants were similar to their white British counterparts and different to the mainland Chinese students.

Therefore in terms of eye movement patterns, Chinese ethnicity was more of a factor than culture.

This is contrary to several previous reports from other research groups which looked at behaviour in Asian and white participants and concluded that culture explained behavioural differences between groups.

"Examining saccades from different populations is revealing a lot about underlying brain mechanisms and how we think," said Dr Paul Knox, who led the study.

"Our research has shown that this cannot be the case, at least for saccade behaviour. What this leaves is the way we're made, perhaps our genetics. And this may have a bearing on the way the brains in different groups react to injuries and disease," said Knox.

All of the participants completed questionnaires which evaluated their cultural values. They then wore a headset and looked at a plain white board on which lights appeared.

The headset measured the time it took for participants' eyes to react to the lights as they appeared in different places on the board.

Twenty-seven per cent of Chinese participants responded with high proportions of express saccades, similar to 22 per cent of the British Chinese, but many more than the 10 per cent of white British participants.

The finding was published in the journal PLoS One.

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