University of Jyväskylä

Enhanced brain activation of dyslexic 3 graders as a sign of the better reading skills

Brain electric activation to speechRecently, researchers at University of Jyväskylä department of psychology studied brain electric activation to speech, and the relations of the brain activation with reading and related skills in 3rd grader dyslexics and control children with and without familial risk for dyslexia. They found enhanced brain responses in dyslexic children with familial risk as compared to other groups. The enhanced brain responses were associated with better performance in speech sound discrimination task, and with better reading and writing accuracy. It was shown that the brain responses of sub-group of dyslexic children with largest responses originated from farther behind at the right auditory cortex as compared to the responses of the other participants. It seems that the best readers within the dyslexic group have developed alternative strategies which substitute their deficits in reading related processes, and therefore their reading has become easier. However, more studies are needed to verify the finding.

More information:
Kaisa Lohvansuu, tel. +358 40-7650684, kaisa.lohvansuu@jyu.fi

Lohvansuu, K., Hämäläinen, J., Tanskanen, A., Ervast, L., Heikkinen, E., Lyytinen, H., & Leppänen, P. (2014). Enhancement of brain event-related potentials to speech sounds is associated with compensated reading skills in dyslexic children with familial risk for dyslexia. International Journal of Psychophysiology, 94 (3), 298-310.  http://dx.doi.org/10.1016/j.ijpsycho.2014.10.002

The Jyväskylä Longitudinal Study of Dyslexia (JLD): https://www.jyu.fi/ytk/laitokset/psykologia/huippututkimus/en/research/JLD_main/JLD

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