Commun Sci Disord. 2017;22(4): 730-744.
Published online December 31, 2017.
doi: https://doi.org/10.12963/csd.17454
Characteristics of Word Reading according to Word Condition in Normal Adults
Eun Ju Yeona , Eun Byeol Choa , Soo Jung Leeb , Sun Woo Kimc , YoonKyoung Leed , and Ji Hye Yoond
aDepartment of Speech Pathology, Graduate School of Health Sciences, Hallym University, Chuncheon, Korea
bDepartment of Audiology & Speech-Language Pathology, Daegu Catholic University, Gyeongsan, Korea
cDepartment of Speech-Language Habilitation, Daelim University College, Anyang, Korea
dDivision of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, Hallym University, Chuncheon, Korea
Corresponding Author: Ji Hye Yoon ,Tel: +82-33-248-2224, Fax: +82-33-256-3420, Email: j.yoon@hallym.ac.kr
Received October 5, 2017  Revised: December 5, 2017   Accepted December 18, 2017
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Objective: This study intended to identify reading characteristics according to various word conditions (regular words, irregular words, and regular nonwords) in normal adults in their 20s to 80s, considering phonological and lexical routes of reading.
This study classified 120 normal adults into a younger group (20-39 years), middle-age group (40-59 years), and older group (60-89 years), and conducted a reading aloud task under various conditions.
The performance of the older group decreased in irregular words and regular nonwords compared to the younger (p<.001) and middle age (p=.001) groups. For irregular nonwords, performance of the older group decreased compared to the younger group (p=.002).
The results show that lexical routes for reading irregular words with graphemes and phonemes not corresponding to each other are affected by aging. This signifies that the cognitive load for reading irregular nonwords grows with age; these nonwords should be read by borrowing phonological changes in words with similar phonological conditions through phonological and lexical routes. To sum up, declines in language ability and cognitive functioning and reduced attention during the normal aging process can affect the ability to use information through lexical routes, and reading that requires complex cognitive processing is more affected by aging.
Keywords: Aging | Word | Reading
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