Category Archives: Research

Decoding Dyslexia

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Dyslexia: News from the web:

Reading and dyslexia illustrate the rich tension between nature and nurture. Reading is a learned skill; no one is born reading. But learning to read relies on inborn human capacities for language and speech. And dyslexia is a genetic condition that compromises these brain networks.

Yet laypeople are convinced that dyslexia results from “troubles with vision. And these errors matter. A parent who holds these views might fail to recognize her child’s difficulties with rhymes and pig Latin (both require phonemic awareness) as warning signs.

scientific american

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Learning disabilities are a connection problem

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Different learning difficulties do not correspond to specific regions of the brain, as previously thought, say researchers at the University of Cambridge. Instead, poor connectivity between ‘hubs’ within the brain is much more strongly related to children’s difficulties.

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Online Dyslexia screening

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Dyslexia: News from the web:

People taking the Dystech test supply a date of birth and email before being presented with a series of words on the screen. Users then repeat the words aloud with the audio being recorded for analysis.

The test, available through a mobile app or in the browser, takes around 10 minutes to complete.

The audio is automatically analysed by the algorithm to determine the likelihood of dyslexia. While the test can’t provide a diagnosis and Dystech does not offer medical advice, Richard says it returns a percentage likelihood of dyslexia as well as metrics on reading reaction time and average reading time.

The results can give an indication if users should seek an official diagnosis – currently only able to be provided by a psychologist.

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Brain stimulation may help

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Dyslexia: News from the web:

Restoring normal patterns of rhythmic neural activity through non-invasive electrical stimulation of the brain alleviates sound-processing deficits and improves reading accuracy in adults with dyslexia, according to a new study.

PLOS. “Brain stimulation reduces dyslexia deficits.” ScienceDaily. ScienceDaily, 8 September 2020.

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Visual perception is key

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Dyslexia: News from the web:

Visual perception has been found to be a critical factor for reading comprehension and arithmetic computation in separate lines of research with different measures of visual form perception. The current study of 1099 Chinese elementary school students investigated whether the same visual form perception (assessed by a geometric figure matching task) underlies both reading comprehension and arithmetic computation. The results showed that visual form perception had close relations with both reading comprehension and arithmetic computation, even after controlling for age, gender, and cognitive factors such as processing speed, attention, working memory, visuo-spatial processing, and general intelligence. 

Cui J, Zhang Y, Wan S, Chen C, Zeng J, Zhou X. Visual form perception is fundamental for both reading comprehension and arithmetic computation. Cognition. 2019;189:141-154. doi:10.1016/j.cognition.2019.03.014

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