বৃহস্পতিবার, ২০ সেপ্টেম্বর, ২০১২

Dyslexia cause may be different than previously thought

ScienceDaily (Sep. 19, 2012) ? Dyslexia may result from impairment of a different linguistic system than previously thought, according to research published Sep. 19 in the open access journal PLOS ONE.

Speech perception engages at least two linguistic systems: the phonetic system, which extracts discrete sound units from acoustic input, and the phonological system, which combines these units to form individual words. Previously, researchers generally believed that dyslexia was caused by phonological impairment, but results from the current study, led by Iris Berent of Northeastern University in Boston, suggest that the phonetic system may actually be the cause.

"Our findings confirm that dyslexia indeed compromises the language system, but the locus of the deficit is in the phonetic, not the phonological system, as had been previously assumed," says Berent.

In the study, Hebrew-speaking college students had difficulty discriminating between similar speech sounds, but had no problem tracking abstract phonological patterns, even for novel words, suggesting that the phonological system is intact but the phonetic system is compromised.

"Our research demonstrates that a closer analysis of the language system can radically alter our understanding of the disorder, and ultimately, its treatment," says Berent.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:


Story Source:

The above story is reprinted from materials provided by Public Library of Science.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Iris Berent, Vered Vaknin-Nusbaum, Evan Balaban, Albert M. Galaburda. Dyslexia Impairs Speech Recognition but Can Spare Phonological Competence. PLoS ONE, 2012; 7 (9): e44875 DOI: 10.1371/journal.pone.0044875

Note: If no author is given, the source is cited instead.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/mind_brain/child_development/~3/iGV4CZwpFfE/120919190604.htm

pirate bay erin andrews erin andrews Pepco tour de france instagram Magic Mike

কোন মন্তব্য নেই:

একটি মন্তব্য পোস্ট করুন