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Free lunchtime lecture on visual processing in dyslexic children

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Research study and talk: How do children with dyslexia process visual information?

Friday 22 January, 1 – 2pm

With the help of the Helen Arkell Dyslexia Charity (HADC), Dr Cathy Manning and colleagues at the University of Oxford recently completed a study looking at how dyslexic children process visual information differently to children with no developmental conditions.

On Friday 22 January, Cathy will talk us through her recent research study, which is awaiting peer-review. This talk is free and open to all, and if you would like to attend, please RSVP [email protected] with your name and email details.

Cathy explains:

'Children were given a computer game where they were asked to decide which direction a group of fireflies were moving in, as quickly and accurately as possible. Most children also wore an EEG net so we could measure their brain waves.

The dyslexic children were slightly slower and made a few more errors than children without dyslexia. When we looked at the brain waves, we found that the early brain responses to sensory information were similar in both groups of children. However, the brain responses of dyslexic children differed in later processing stages which could be linked to difficulties filtering out irrelevant information, and differences in making decisions and pressing buttons.

This is a diagram of the EEG net showing lots of activity (red areas) around the back of the head over visual parts of the brain.

This shows each group’s average brain activity after the fireflies started to move (0 milliseconds) in the areas shown on the left. The groups started off quite similar but started to differ reliably from each other from around 400 milliseconds.

These findings help us to understand more about the role of sensory processing differences in dyslexia. In future, we would like to investigate links with everyday life.

We are grateful to the HADC and all the participating families for their help with this project.'

 

If you would like to find out more or would like your child to take part in future projects, please contact [email protected]

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