期刊
ANNALS OF DYSLEXIA
卷 71, 期 2, 页码 282-298出版社
SPRINGER
DOI: 10.1007/s11881-020-00211-z
关键词
Comprehension; Developmental language disorder; Literacy; Specific reading comprehension deficit
资金
- American Speech and Hearing Foundation
- National Institutes of Health [F31DC014194, R01 DC013064, R21DC016391]
- University of Connecticut
- University of Delaware
There is debate over the overlap and non-overlap of S-RCD and DLD during childhood, challenges faced by adult populations are not well studied, the combination of specific reading comprehension and language disorders may affect individual skill profiles, and co-occurrence of S-RCD and DLD may result in weaknesses in phonological processing, reading fluency, and verbal memory.
Specific reading comprehension deficit (S-RCD) and developmental language disorder (DLD) are both commonly occurring developmental disorders of language. The ways in which these disorders do and do not overlap during childhood are a matter of debate (Nation & Norbury, 2005). Moreover, in both populations, the challenges faced by individuals in adulthood are understudied. Here, we combined data across cohorts of college students, and classified individuals with only S-RCD (n = 20), only DLD (n = 55), and co-occurring S-RCD and DLD (n = 13). Individuals with good language and reading skills, who matched those with S-RCD on decoding, comprised our typical language and reading group (TD; n = 20). Beyond the measures used for classification, group-level differences were identified in sentence-level reading fluency, phonological processing, verbal working memory, and rapid automatized naming. We found that skill profiles differed across groups; however, we found no evidence of weaknesses beyond the core deficit in reading comprehension observed in those with only S-RCD. In contrast, when S-RCD co-occurs with DLD, weaknesses are observed in phonological processing, as well as reading fluency and verbal working memory. These findings suggest that some adults with S-RCD have co-occurring DLD as a core weakness. These findings, as well as differences between individuals with S-RCD and DLD, are further discussed.
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