Findings in a recent research have proposed that the previously thought reasons for development of dyslexia, might be wrong, as impairment of another linguistic system leads to the very broad term defining a learning disability.
The disability has left several people around the world affected, as a result of which, several studies till date have been carried out to determine the factors related to the learning disorder.
Although, dyslexia is related to learning disability, it impairs a person's fluency or comprehension accuracy in being able to read and has an impact on how an individual apprehends spoken language. Individuals suffering from the condition also face difficulties in speech perception.
The new study conducted by a Northeastern University professor Iris Berent, has been able to emerge with solid evidence related to the source of the condition.
Speech perception of an individual depends on two linguistic systems: The phonetic system and the phonological system. Initially, it was believed that the condition was due to impairment in the phonological system.
Researchers of the study said, "They examined the ability of dyslexic individuals to extract the phonological patterns of their language, and compared it to their capacity to extract phonetic categories from speech". The study, published in the journal PLOS ONE, concluded that it was due to the phonetic system.
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