iReadMore app improves reading ability of stroke patients

June 19, 2018

A new smart app designed to improve the reading ability of people who have suffered a stroke provides ‘significant’ improvements,’ a UCL study has found.

Developed by the Aphasia Lab (UCL Institute of Neurology), iReadMore provides computer-based reading therapy using written and spoken words, pictures, and aims to improve word-reading speed and accuracy.

Stroke patients typically need around 100 hours of Speech and Language Therapy (SaLT), to see a marked improvement; however, the NHS only provides around 12 hours. The UCL app will enable patients to have limitless hours of SaLT and researchers aim to make it available for general use.

The trial, published in the journal Brain, involved 21 chronic stroke patients, with central alexia, which is an acquired reading disorder that also affects speech and comprehension. Participants used the iReadMore app for two, four-week blocks (each block comprising 34 hours). Their reading ability was measured before, during and after the trial, which was funded by the Medical Research Council.

iReadMore contains a large number of ‘trained’ words, which are regularly repeated during the therapy. It also contains ‘untrained’ words, which are matched for difficulty, but patients do not practice them. This allowed researchers to assess whether there was item-specific learning (when only trained words improved) or a general learning effect (when both trained and untrained words improved).

On average iReadMore training resulted in an 8.7% improvement in patients’ reading accuracy for trained words, with some individuals improving by as much as 25%. The speed at which patients read the words also increased. There was no effect on untrained words. Follow-up tests three months later showed the improvements for trained words were largely maintained.

During the iReadMore trial a second intervention was also investigated, which used transcranial Direct Current Stimulation (tDCS). Here a small current is applied via a patch place to the left side of the forehead to stimulate neural plasticity in the underlying brain. The effects of tDCS were apparent on both trained and untrained words, but the effect size was considerably smaller, averaging 2.6% improvement in accuracy across the participants.

Medical Xpress has the full article

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